ONKYO HT-R820THX User manual

HT-R820THX

SERVICE MANUAL

AV RECEIVER

Black model

MODEL HT-R820THX

120V AC, 60HzBMDC

Ref. No. 3838

102004

RC-571M

STANDBY/ON

PHONES

DISPLAY TUNING MODEDIGITAL INPUT

LISTENING

MODE

THX

MEMORY

RETURNSETUP

VIDEO 2

TAPE TUNER

C D

VIDEO

3

VIDEO 1

SPEAKERS BA

MASTER VOLUME

ENTER

S VIDEO

VIDEO

AUDIO

VIDEO 3

INPUT

CLEAR

TUNING

PRESET

HT-R820THX

STANDBY

LR

TONE

VCR

CD

+

10 0

CLEAR

123

456

789

V1 V2 V3

DVD MULTI CH

--/---

TAPE TUNER

INPUT

I

+

-

ENTER

S

E

T

U

P

G

U

I

D

E

R

E

T

U

R

N

E

X

I

T

Re-EQ

CH SEL

TEST TONE

DSP

DIRECT

STEREO

ALL ST

SURR

L NIGHT

T

O

P

M

E

N

U

M

E

N

U

VOL

+

-

CDR

SAT

AMP

TV VCR

CABLE

DVD

CD MD

DISC

CH

TONE

TUNER/

TAPE

DISPLAY

TV

INPUT

DIMMER SLEEP

RANDOM

SP A SP B

MUTING

ANGLE

SEARCH

SUBTITLEAUDIO

MEMORYA

-

BREPEAT

ON STANDBY

T

V

TV CH

T

V VOL

RC

-

571M

REC

LAST M

REMOTE MODE

OPEN

/

CLOSE

DSP

THX

VIDEO OFF

OR-EQ

LEVEL

-

LEVEL +

+

_

SAFETY-RELATED COMPONENT

WARNING!!

COMPONENTS IDENTIFIED BY MARK ON THE

SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE

CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.

REPLACE THESE COMPONENTS WITH ONKYO

PARTS WHOSE PART NUMBERS APPEAR AS SHOWN

IN THIS MANUAL.

MAKE LEAKAGE-CURRENT OR RESISTANCE

MEASUREMENTS TO DETERMINE THAT EXPOSED

PARTS ARE ACCEPTABLY INSULATED FROM THE

SUPPLY CIRCUIT BEFORE RETURNING THE

APPLIANCE TO THE CUSTOMER.

HT-R820THX

SPECIFICATIONS

Amplifier Section

Video Section

Tuner Section

General

Audio Outputs

Analog outputs:

Subwoofer pre out:

Speaker outputs:

Phones:

Specifications and features are subject to change without notice.

Power supply:

Power consumption:

Standby power consumption:

Dimensions

(W x H x D):

Weight:

AC 120 V, 60 Hz

6.6 A

2.5 W

17-1/8" x 5-7/8" x 14-13/16"

(435 x 150 x 376 mm)

22.5 lbs. (10.2 kg)

Video Inputs

Component video inputs:

S-Video inputs:

Video inputs:

2 (DVD, Video 1/2/3)

4 (DVD, Video 1-3)

2 (Tape Out, Video 1 Out)

1

6+2

1

4 (Optical 1-3, Coaxial)

6 (CD, Tape, DVD, Video 1-3)

5.1 ch (Front L/R, Center, S

urround L/R, Subwoofer)

Audio Inputs

Digital inputs:

Analog inputs:

Multichannel analog inputs:

1 (Component Video Out)

2 (Video 1 Out, Monitor Out)

Video Outputs

Component video outputs:

S-Video outputs:

Video outputs:

FM

Tuning frequency range:

Usable sensitivity:

S/N ratio:

THD:

FM stereo separation:

87.5-107.9 MHz

FM STEREO 17.2 dBf, 2.0 µV (75 IHF)

FM MONO 11.2 dBf, 1.0 µV (75 IHF)

FM STEREO 70 dB (IHF-A)

FM MONO 76 dB (IHF-A)

FM STEREO 0.3% (1 kHz)

FM MONO 0.2% (1 kHz)

45 dB at 1 kHz

AM

Tuning frequency range:

Usable sensitivity:

S/N ratio:

THD:

530-1710 kHz

30 µV

40 dB

0.7%

Input sensitivity, output

level and impedance:

Component video

frequency response:

1.0 Vp-p/75

(component and S-Video Y)

0.7 Vp-p/75

(component PB/CB, PR/CR)

0.28 Vp-p/75 (S-Video C)

1.0 Vp-p/75 (composite)

5 Hz-50 MHz

Power output:

All channels:

Dynamic power:

THD (total harmonic

distortion):

Damping factor:

Input sensitivity and

impedance:

Output level and impedance:

Frequency response:

Tone control:

S/N ratio (Direct mode):

Speaker impedance:

130 W (8 , 20 Hz-20 kHz, FTC)

2 x 260 W (3 , front)

2 x 200 W (4 , front)

2 x 150 W (8 , front)

0.08% (rated power)

60 (front, 1 kHz, 8 )

200 mV/47 k (LINE)

200 mV/470 (REC OUT)

10 Hz-100 kHz/+1 dB,

-3 dB (Direct mode)

±12 dB, 50 Hz (BASS)

±12 dB, 20,000 Hz (TREBLE)

100 dB (CD, IHF-A)

8 ~

SERVICE PROCEDURES

HT-R820THX

1. Replacing the fuses

This symbol located near the fuse indicates that the

fuse used is show operating type, For continued protection against

fire hazard, replace with same type fuse, For fuse rating, refer to

the marking adjacent to the symbol.

Ce symbole indique que le fusible utilise est e lent.

Pour une protection permanente, n'utiliser que des fusibles de meme

type. Ce demier est indique la qu le present symbol est apposre.

3. To initialize the unit

This device employs a microprocessor to perform various

functions and operations. If interference generated by an external

power supply, radio wave, or other electrical sauce results in accident

which causes the specified operations and functions to operate

abnormally.

To perform a result, please follow the procedure below.

1. Press and the hold down the VIDEO 1 button, then press the

STANDBY/ON button when the unit is Power On.

2. After "Clear" is displayed, the preset memory and each mode

stored in the memory, are initialized and will return to the

factory settings.

REF NO. PART NO. DESCRIPTION

F6901, F6902

F6901 or, F6902 or

F901

F901 or

F903

F903 or

252199

252100

252307

252198

252261

252164

252258

10A-UL

10A-EAK

10A-TL250V

8A-UL

8A-T/UL-ST2

5A-UL/T-237

5A-T/UL-ST2

2. Safety-check out

After correcting the original service problem perform the

following safety check before releasing the set to the customer

Connect the insulating-resistance tester between the plug of

power supply cord and terminal GND on the back panel.

Specifications: More than 10Mohm at 500V

The HT-R820THX uses a battery-less memory backup

system in order to retain radio presets and other settings

when it's unplugged or in the case of a power failure.

Although no batteries are required, the HT-R820THX

must be plugged into an AC outlet in order to charge the

backup system.

Once it has been charged, the HT-R820THX will retain

the settings for several weeks, although this depends on

the environment and will be shorter in humid climates.

5. Memory backup

REMARKS

<Note>

Main microprocessor Q7008 only.

1. Press and the hold down the DISPLAY button , then press the

STANDBY/ON button when the unit is Power ON.

Version is displayed on FL display only for 3 seconds.

2. Press the STANDBY/ON button to Power Off.

4. To check version of microprocessor

Ver. 075 (04809a)

<ex.>

NCDG-8230

25138230B

GND

232RXD

232TXD

NC

FVCC

P7701

Q7008

Main microprocessor

6. Changing the AM band step

1. Necessary to change as follows.

R7003 Change to 10 kohms. Refer to <Fig-1>

R7004 Change to 10 kohms. Refer to <Fig-1>

2. To select.

Press and hold down the TUNER button , then press the

MEMORY button.

Component side

<Fig-1>

NADG-8230 (Pre-amplifier PC board)

R7004

R7003

OPERATION CHECK-1

DC VOLTAGE DETECTION PROTECTORS

HT-R820THX

1. Set the unit to test mode " Test-4-00 " .

1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power On.

1-2. Press the VIDEO 3 button, while the " Test - _ " is shown.

Unit will be in the state of " Test-4-00 ".

2. Repeat and press SPEAKERS B to the " Test-4-20 " is shown.

3. Check that the " Protect OK " is shown and speaker relays are turn Off.

If a circuit is failure, the " Protect NG " is shown.

4. Check about the " Test 4-21 " to " Test 4-31 " one by one.

Refer to <Fig-1> about the operation method.

5. Press the STANDBY/ON to power Off. (Exit the test mode.)

<Note1>

In test mode " Test 4-20 " to " Test 4-31 ", DC voltage is outputted from DSP IC a pre-amplifier section, and it is inputted into a

power amplifier circuit.

Therefore an external input is unnecessary in check.

<Note2>

Don't connect speakers or any load.

Don't short speaker terminals.

Test - _

Test - 4-00

Test - 4-20

Protect OK

Protect NG

Test - 4-20

Press

" SPEAKER B " button.

Test - 4-21

Press

" SPEAKER B " button.

Test - 4-22

Operation method

Press on " SPEAKER B " button ---> Next step

Press on " SPEAKER A " button ---> Retarn

Test - 4-31

<Fig-1>

Press

" SPEAKER A " button.

Press

" SPEAKER A " button.

Details of TEST MODE 4-20 to 4-31

TEST MODE

4-20

4-21

4-22

4-23

4-24

4-25

4-26

4-27

4-28

4-29

4-30

4-31

DSP

output ch.

FL

FR

C

SL

SR

SB

FL

FR

C

SL

SR

SB

DSP

output voltage

+DC

- DC

+DC

- DC

+DC

- DC

+DC

- DC

+DC

- DC

+DC

MASTER VOLUME = MAX.

blinks

OPERATION CHECK-2

CURRENT DETECTION PROTECTORS

HT-R820THX

1. Set the unit to test mode " Test-4-00 " .

1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power On.

1-2. Press the VIDEO 3 button, while the " Test - _ " is shown.

Unit will be in the state of " Test-4-00 ".

2. Repeat and press SPEAKERS B to the " Test-4-32 " is shown.

3. Connect the road resistor 3 ohms to the speaker terminal.

4. Check that the " Protect " is not shown.

5. Connect the road resistor 1.5 ohms to the speaker terminal.

6. Check that the " Protect " is shown, and speaker relays are turn off.

7. Check about the FL, FR, C, SL, SR and SB channel one by one.

8. Press the STANDBY/ON to power Off. (Exit the test mode)

<Note1>

In test mode " Test 4-32 ", the pulse waveform is outputted from DSP IC on the pre-amplifier section, and it is inputted into

a power amplifier circuit. Refer to <Fig-1>.

Therefore an external input is unnecessary in check.

<Note2>

Don't connect speakers or any load.

Don't short speaker terminals.

Don't check two or more channels simultaneously.

Test - _

Test - 4-00

Test - 4-32

Protect

The output waveform from DSP IC in the test mode 4-32.

<Fig-1>

Details of TEST MODE 4-32

TEST MODE

4-32

DSP

output ch.

ALL

DSP

output voltage

Max.

MASTER VOLUME = 54

2 ms

20 ms

blinks

OPERATION CHECK-3

OUTPUT LEVEL & THERMAL DETECTION

HT-R820THX

RL6901

D6904

D6903

RL6902

POWER AMP.

PRI.

SEC1

Low

High

+B1

-B1

T901

MAIN TRANS.

Low

High

Q6303

THERMAL

SENSOR

R6380

THERMAL

DETECTION

OUTPUT

LEVEL

DETECTION

VOLH

Q7008

MAIN

MICROPROCESSOR

Q6901

SEC1H

23

2

SPEAKER

OUT

F6901

F6902

Low-voltage

Block diagram

HIGH

MODE

LOW

MODE

---> +/- 68.0 V

---> +/- 33.5 V

High-voltage

Function

1. High-voltage mode

Usually, the power supply supplies high voltage to the power amplifier circuit when the relay (RL6901) is turned On.

2. Low-voltage mode

When as follows, a power supply changes to the state of supplying low voltage when the relay (RL6901) is turned Off.

(1) Excessive output signal is continuously outputted from power amplifier.

(2) Temperature of a heat sink over 80 degrees.

Purpose

1. The loss which power amplifier generates is decreased. As a result, the miniaturization of a heat sink is realized.

2. Corresponds to a safety standard.

<Note>

Don't connect speakers or any load.

Don't short speaker terminals.

(1) Set the unit is Multi channel input state.

(2) Set the master volume into the minimum.

(3) Apply sine wave signal to MULTI CHANNEL INPUT (FL+FR+C+SL) terminals.

(4) Connect an oscilloscope to speaker terminal of FL channel.

(5) Adjust master volume so that the wave form of speaker output may become distortion about 5%.

(6) Check that the RL6901 is turned off after about 5 seconds.

And the power supply changes to low-voltage mode.

(7) Adjust the master volume so that output voltage may become half.

(8) Check that the RL6901 is turned On after 2 to 3 minutes.

And the power supply returns to high-voltage mode.

Necessity of operation check

May not notice the fuse (F6901, F6902) broken in the case of repair.

Because the power supply is continuing supplying voltage from the High side of SEC1 at high-voltage mode.

When a power supply Circuit changes to low voltage mode, amplifier does not operate.

Therefore, it is very important to check operation of this power supply system containing a fuse.

OPERATION CHECK-4

OUTPUT LEVEL & THERMAL DETECTION

HT-R820THX

P6301

COM

TH1

TH2

U16

NAAF-8245

POWER AMPLIFIER PC BOARD

Front side

1.8 kohms

1W

P6301

TH1

COM

TH2

Output level detection

1. Set the unit to test mode " Test-3-3 "

1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power On.

1-2. Press the VIDEO 2 button, while the " Test - _ " is shown.

Unit will be in the state of " Test-3-00 ".

1-3. Repeat and press SPEAKERS B button to the " Test-3-3 " is shown.

2. Apply signal (sine wave 1kHz, -1.5dBV) to MULTI CHANNEL (FL, FR, SL, SR, C) terminal, each channel.

3. Check that FM STEREO indicator is shown.

4. Press the STANDBY/ON button to power Off. (Exit from the test mode.)

Test - _

Test - 3-00

Test - 3-03

FM STEREO

Thermal detection

1. Set the unit to test mode " Test-3-3 "

Refer to the clause of " Output level detection ".

2. Connect the resistor 1.8kohms /1W between " HT2 " and " COM " terminals of P6301.

3. Check that FM STEREO indicator is shown.

4. Press the STANDBY/ON button to power Off. (Exit the test mode.)

Test - 3-03

MEMORY

The following is the procedure of checking detection operation of a microprocessor in false, by using test mode.

OPERATION CHECK-5

DSP DEBUG MODE

HT-R820THX

DSP Debug Mode

Ver. 075 (04809a)

E1A48K010o 23 o

<Ex.>

Details of display

1 42 5 6 97 103

8

TIn this test mode, the check with normal communication of a microcomputer and the data of DSP and DIR is possible.

This information is a help to find the cause of failure.

UNLOCK

E = UNLOCK

= LOCK

1

Digital Selecter

D = DIGITAL

A = ANALOG

1 = COAX

2 = OPT1

3 = OPT2

4 = Others

2

Sampling Frequency

96 = 96kHz

48 = 48kHz

44 = 44kHz

32 = 32kHz

= Not detect

3

AUTOBOOT DSP AB CODE

0 = DTS NEO:6

1 = DD PCM

2 = DTS-ES

3 = AAC

4 = SIG

5 = COS

6 = DTS96/24

7 = PL2FS

6

Pre Emphasis

K = OFF

e = ON

4

AUTOBOOT DSP C CODE

0 = PL2X (Except DTS 96/24)

1 = DTS 96/24

2 = NEO6

3 = T-D

77

DSP Detect Format

[IEC61937]

00 = Null

01 = Dolby Digital

03 = Pause

04 = MPEG1 L1

05 = MPEG1 L23/MPEG2 w/o

06 = MPEG2 w/o

07 = MPEG2 AAC

0B = DTS1

0C = DTS2

0D = DTS3

1B = MPEG2 AAC1

1C = MPEG2 AAC2

[Except IEC61937]

20: Silent

21: DTS LD

22: DTS CD

23: PCM

9

DSP Decode

0 = Decode OK

X = Decode NG

- = Analog in

10

How to go in DSP debug mode?

1. Press and hold down the DISPLAY button, then press the STANDBY button when the unit is power On.

2. Press the DISPLAY button, while the "Version 02415A" is shown.

How to Exit

Press STANDBY/ON button to power Off.

DIR MEMORY/DOWNLOAD

DIR Status

0 = PCM/ANALOG

2 = DTS CD

5 = DD/DTS/AAC

5

DSP

8

AUTOBOOT Status

O = Autoboot is complete

X = Autoboot is going on

EXPLODED VIEWS-1

F903

F901

F6902

F6901

U18

U19

U01

U09

U14

U21

U07

P101

U12

U06

U26

T901

U20

U10

U16

P800

x 10

A003

A052

x6

A050

A001

A003

A407

A060

A402

A409

A003

A011

A054

A056

A003

A017

A015

A017

A003

P7503

P7502

A062

U05

U04

U03

U02

A025

A003

A037

A033

A003

P306B

70+/-5mm

U27

A003

x 4

x 8

Refer to

"EXPLODED

VIEWS-2"

A705

U11

A402

A401

P901

A031

HT-R820THX

EXPLODED VIEWS-2

POWER TRANSISTOR SECTION

HT-R820THX

Q6055

Q6065

Q6054

Q6053

Q6061

Q6052

Q6060

Q6050

Q6051

Q6062

Q6064

Q6063

Q6050A

x12

A039

x12

A034

L=300+/-5mm

BLOCK DIAGRAM

HT-R820THXHT-R820THX

L

R

L

R

Q

INPUT GAIN

0/6DB

INPUT GAIN

0/6dB

INPUT GAIN

0/6dB

OUTPUT GAIN

0-18dB

Q302(1/2)

-6dB

+4.5dB

Q302(1/2)

-6dB

+4.5dB

OUTPUT GAIN

0-18dB

OUTPUT GAIN

0-18dB

OUTPUT GAIN

0-18dB

OUTPUT GAIN

0-18dB

OUTPUT GAIN

0-18dB

INPUT GAIN

0/6dB

INPUT GAIN

0/6dB

INPUT GAIN

0/6dB

INPUT GAIN

0/6dB

Q305

15dB

VIDEO3

CD

TAPE IN

TAPE OUT

VIDEO-1 OUT

VIDEO-1 IN

VIDEO-2 IN

DVD

SURR.

CENTER

BACK UP

STANDBY

D7507

RL6901

MASTER

VOLUME

0,,-103DB

50KLPF

SB

+6dB

50KLPF

SW

+6dB

50KLPF

C

+6dB

50KLPF

SR

+6dB

50KLPF

SL

+6dB

50KLPF

R

+6dB

50KLPF

L

+6dB

SEC2

16M SDRAM

(520 ONLY)

Q7301

IC42S16100

Q702

MX29LV040

FLASH

MEMORY

FM/AM TUNER

UNIT

2CH A/D

96/24

DIR

MAIN MICRO

PROCESSOR

1

VIDEO SELECTOR

1

Q7008

MAIN MICROPROCESSOR

MPD784225GC

Q7502

SUB MICROPROCESSOR

MPD780232GC

Q701

CS494003CQ-Z

DSP

96/24

8CH D/A

OPTICAL 3

OPTICAL 2

OPTICAL 1

BASS/TREBLE

AC IN

SEC1

T902

U7501

REMOTE

SENSOR

SEC3

+B1L

+B1H

PHONES

VIDEO

VIDEO2 IN

VIDEO1 IN

DVD

12.5MHZ

5MHZ

12.288MHZ

VIDEO OUT

MONITOR OUT

VIDEO 1

OSC.

+5VDSP

Q7004

BA33C25

FL TUBE

FLAC

SEC1 VOLTAGE

CONTROL

+B2

SEC1H

+B1

POWER

COAXIAL

VIDEO3

+27dB

YC

S-VIDEO

MONITOR

OUT

YC

VIDEO 3

YC

VIDEO 2 IN

YC

S-VIDEO

VIDEO 1 IN

YC

VIDEO 1

YC

DVD

L

R

FRONT SPEAKERS-A

FRONT SPEAKERS-B

SURROUND SPEAKER

CENTER SPEAKER

SURROUND BACK SPEAKER

-6dB

11

12

3

4

7

79 78

8

68

93

81 80

94

70

9

10

53 54

64

11

12

55 56

13

65

14

57 58

95

66

96

48 49

15

61

SWPO

16

39

38

41

42

40

44

91

92

24

25

51 52

AMUT

63

27

28

43

26

30

SPF

SPCS

SPB

HPDET

SELMUT

SELDA

SELCL

RST.CS.INTREQ/CL/DA/SCDO

RST.CS/CL/DA/CDTO/INT1.2.

A17

A16

A15

ROM/RAM

CTLA/B

VMUT2

VMUT1

Q800

AK4588VQ

Q301

BD3817KS

SELECTOR

VOLUME

TONE CONTROL

0dB

LA7956

Q203

LA7956

Q213

LA7956

Q212

FL DISPLAY

Q7501

OPERATION KEY

0dB

6dB

POWER AMPLIFIER

DIGITAL IN

Q281

74HCU04

+2.5V

+3.3V

POWER SUPPLY

Q804

Q802

Q803

Q202

Q201

Q211

Q210

Q207

Q208

MUTE

DSP

CB

CR

DVD IN

CY

CB

CR

VIDEO

1/2/3 IN

Y

CB

CR

Y

RL241

RL242

OUT

COMPONENT

VIDEO

+12VAF

Q321

78L07

+7V

POWER SUPPLY

-12VAF

Q322

79L07

-7V

MUTING

Q312 Q313

Q306

Q307

Q308

SUBWOOFER

PREOUT

R6831

THERMAL

SENSOR

RL6800

RL6804

RL6801

RL6803

-B1

D921

-924

SUB

TRANSFORMER

RL901

P902

AC OUTLET

T901

MAIN

TRANSFORMER

POWER

AMP.

Q6406

78M05

+5VDSP

Q6402

78M12

Q6403

79M12

-12VAF

VIDEO

SECTION

PRE-AMPLIFIER

SECTION

DSP SECTION

-VP

+12V

Q9501

Q6931

NJM78M56A

Q6405

78M12

+5.6V

MICROPROCESSOR

SUB

MICROPROCESSOR

VOLTAGE

SENSOR

VOLH

PRO

D6703

DC VOLTAGE

DETECTOR &

OVER CURRENT

DETECTOR

Q6701~6703

D6704

R6830

THERMAL

SENSOR

BD3817KS,

OP AMP.

Q801

FRONT

SUB WOOFER

L

R

L

R

D6904D6903

RL6902

D9602

-9505

D9513

RI

INTERFACE

CPNT

PROTHERM

FOR SEC1

VOLTAGE CONTROL

A

1

2

3

4

5

BCDEFGH

BLOCK DIAGRAM

HT-R820THXHT-R820THX

L

R

L

R

Q

INPUT GAIN

0/6DB

INPUT GAIN

0/6dB

INPUT GAIN

0/6dB

OUTPUT GAIN

0-18dB

Q302(1/2)

-6dB

+4.5dB

Q302(1/2)

-6dB

+4.5dB

OUTPUT GAIN

0-18dB

OUTPUT GAIN

0-18dB

OUTPUT GAIN

0-18dB

OUTPUT GAIN

0-18dB

OUTPUT GAIN

0-18dB

INPUT GAIN

0/6dB

INPUT GAIN

0/6dB

INPUT GAIN

0/6dB

INPUT GAIN

0/6dB

Q305

15dB

VIDEO3

CD

TAPE IN

TAPE OUT

VIDEO-1 OUT

VIDEO-1 IN

VIDEO-2 IN

DVD

SURR.

CENTER

BACK UP

STANDBY

D7507

RL6901

MASTER

VOLUME

0,,-103DB

50KLPF

SB

+6dB

50KLPF

SW

+6dB

50KLPF

C

+6dB

50KLPF

SR

+6dB

50KLPF

SL

+6dB

50KLPF

R

+6dB

50KLPF

L

+6dB

SEC2

16M SDRAM

(520 ONLY)

Q7301

IC42S16100

Q702

MX29LV040

FLASH

MEMORY

FM/AM TUNER

UNIT

2CH A/D

96/24

DIR

MAIN MICRO

PROCESSOR

1

VIDEO SELECTOR

1

Q7008

MAIN MICROPROCESSOR

MPD784225GC

Q7502

SUB MICROPROCESSOR

MPD780232GC

Q701

CS494003CQ-Z

DSP

96/24

8CH D/A

OPTICAL 3

OPTICAL 2

OPTICAL 1

BASS/TREBLE

AC IN

SEC1

T902

U7501

REMOTE

SENSOR

SEC3

+B1L

+B1H

PHONES

VIDEO

VIDEO2 IN

VIDEO1 IN

DVD

12.5MHZ

5MHZ

12.288MHZ

VIDEO OUT

MONITOR OUT

VIDEO 1

OSC.

+5VDSP

Q7004

BA33C25

FL TUBE

FLAC

SEC1 VOLTAGE

CONTROL

+B2

SEC1H

+B1

POWER

COAXIAL

VIDEO3

+27dB

YC

S-VIDEO

MONITOR

OUT

YC

VIDEO 3

YC

VIDEO 2 IN

YC

S-VIDEO

VIDEO 1 IN

YC

VIDEO 1

YC

DVD

L

R

FRONT SPEAKERS-A

FRONT SPEAKERS-B

SURROUND SPEAKER

CENTER SPEAKER

SURROUND BACK SPEAKER

-6dB

11

12

3

4

7

79 78

8

68

93

81 80

94

70

9

10

53 54

64

11

12

55 56

13

65

14

57 58

95

66

96

48 49

15

61

SWPO

16

39

38

41

42

40

44

91

92

24

25

51 52

AMUT

63

27

28

43

26

30

SPF

SPCS

SPB

HPDET

SELMUT

SELDA

SELCL

RST.CS.INTREQ/CL/DA/SCDO

RST.CS/CL/DA/CDTO/INT1.2.

A17

A16

A15

ROM/RAM

CTLA/B

VMUT2

VMUT1

Q800

AK4588VQ

Q301

BD3817KS

SELECTOR

VOLUME

TONE CONTROL

0dB

LA7956

Q203

LA7956

Q213

LA7956

Q212

FL DISPLAY

Q7501

OPERATION KEY

0dB

6dB

POWER AMPLIFIER

DIGITAL IN

Q281

74HCU04

+2.5V

+3.3V

POWER SUPPLY

Q804

Q802

Q803

Q202

Q201

Q211

Q210

Q207

Q208

MUTE

DSP

CB

CR

DVD IN

CY

CB

CR

VIDEO

1/2/3 IN

Y

CB

CR

Y

RL241

RL242

OUT

COMPONENT

VIDEO

+12VAF

Q321

78L07

+7V

POWER SUPPLY

-12VAF

Q322

79L07

-7V

MUTING

Q312 Q313

Q306

Q307

Q308

SUBWOOFER

PREOUT

R6831

THERMAL

SENSOR

RL6800

RL6804

RL6801

RL6803

-B1

D921

-924

SUB

TRANSFORMER

RL901

P902

AC OUTLET

T901

MAIN

TRANSFORMER

POWER

AMP.

Q6406

78M05

+5VDSP

Q6402

78M12

Q6403

79M12

-12VAF

VIDEO

SECTION

PRE-AMPLIFIER

SECTION

DSP SECTION

-VP

+12V

Q9501

Q6931

NJM78M56A

Q6405

78M12

+5.6V

MICROPROCESSOR

SUB

MICROPROCESSOR

VOLTAGE

SENSOR

VOLH

PRO

D6703

DC VOLTAGE

DETECTOR &

OVER CURRENT

DETECTOR

Q6701~6703

D6704

R6830

THERMAL

SENSOR

BD3817KS,

OP AMP.

Q801

FRONT

SUB WOOFER

L

R

L

R

D6904D6903

RL6902

D9602

-9505

D9513

RI

INTERFACE

CPNT

PROTHERM

FOR SEC1

VOLTAGE CONTROL

A

1

2

3

4

5

BCDEFGH

SCHEMATIC DIAGRAMS-1

PRE-AMPLIFIER SECTION

HT-R820THX HT-R820THX

D9513 D2SB80A

Q7301

A021

A122

A1020

A1119

A223

A324

A4 27

A5 28

A6 29

A7 30

A8 31

A9 32

CKE 34

CLK 35

DQ02

DQ13

DQ10 42

DQ11 43

DQ12 45

DQ13 46

DQ14 48

DQ15 49

DQ25

DQ36

DQ48

DQ59

DQ611

DQ712

DQ8 39

DQ9 40

GND1 26

GND2 50

GNDQ14

GNDQ210

GNDQ3 41

GNDQ4 47

LDQM

14

NC1 33

NC2 37

UDQM 36

VCC01

VCC1

25

VCCQ17

VCCQ2

13

VCCQ3 38

VCCQ4

44

CAS16

CS

18

RAS

17

WE15

BD3817KS

Q301

1

AGND1067

AGND1177

AGND12 86

AGND13 90

AGND14 97

AGND15

100

2

AGND323

AGND4

31

AGND535

AGND646

AGND7

50

AGND8 59

AGND9 62

AOUT1

32

AOUT2

33

BNFA1 74

BNFA2 72

BNFB1 73

BNFB2 71

CL 84

DATA 85

GOUTC 57

79

GOUTFR 81

51

53

GOUTSR55

GOUTSW48

3

INA24

INB15

INB26

INC17

INC28

IND19

IND210

INDSPC40

INDSPCB43

INDSPFL39

INDSPFR38

INDSPSL42

INDSPSR41

INDSPSW44

INDVDC26

29

INDVDFL

25

INDVDFR24

28

INDVDSR27

30

INE111

INE212

INF113

INF214

ING115

ING2

16

INH117

INH2

18

INI1

19

INI220

INJ121

INJ222

MUTE 83

NC1

34

NC236

NC337

NC445

NC5

47

NC6 60

NC7 69

NC8 88

OUT1 98

OUT2 99

OUTC 66

OUTCB 63

OUTFL 68

OUTFR 70

OUTSL 64

OUTSR 65

OUTSW 61

ROUTA1 91

ROUTA2 92

ROUTB1 93

ROUTB2 94

ROUTC1 95

ROUTC2 96

THGND 82

TNF1 76

TNF2 75

VCC 89

VEE 87

VINC 58

52

78

80

VINSL 54

VINSR 56

VINSW

49

Q800

AK4588VQ

AVDD55

AVSS56

18

BICK2 15

2

CAD070

CAD172

CCLK/SCL

21

CDTI/SDA

22

20

COUT 11

CSN

23

DAUX1

24

DAUX275

DVDD 4

DVSS

5

DZF1 34

DZF2/OVF 33

I2C74

INT080

1

LIN51

LOUT147

43

LOUT3

39

LOUT4 35

19

LRCK2 16

MASTER 32

MCKO1 10

MCKO2 9

MCLK77

NC1 36

NC10

62

NC2 38

NC3 40

42

NC544

NC646

NC748

NC850

58

PDN 31

PVDD66

PVSS64

R65

RIN52

ROUT149

ROUT245

41

ROUT4 37

RX057

59

RX261

RX363

RX467

RX569

RX671

RX773 SDTI1 28

SDTI2 27

SDTI3 26

SDTI4 25

SDTO1 17

SDTO2 14

60

TEST268

TEST3 8

3

TX078

TX179

UOUT 12

VCOM53

VIN76

VOUT 13

VREFH54 XTI 7

XTL0 30

XTL1 29

XTO 6

Q181

CIN8

FLOUT7MODE10

MPXIN4

RDCL16

RDDA2

RDS-ID/1

RST 15

TEST 9

VDDA5 VDDD12

VREF3

VSSA6 VSSD11

XIN 13

XOUT

14

Q703

TC7WU04FU

GND4

1

63

72

5

VCC

8

RESET

UHS,_CSOUT,GPIO17

SCCLK

HINBSY,GPIO8

SCDOUT,SCDIO

A1,GPIO12

VDD5

VSS5

SCDIN

SCS

FSCLKN1,STCCLK2

VSS4

VDD4

FSDATAN1

A0.GPIO13

CS,GPIO9

CLKSEL

CLKIN,XTALI

XTALO

PLLVDD

FILT1

FILT2

PLLVSS

WR._DS,GPIO10

RD,_R/W,GPIO11

FLRCKN1

CMPDAT,FSDATAN2

CMPREQ,FLRCLKN2

HDATA0,GPIO0

HDATA1,GPIO1

VDD3

VSS3

HDATA2,GPIO2

CMPCLK,FSCLKN2

AUDATA0

AUDAUA1

VSS1

VDD1

LRCK1

SCLKN,GPIO22

LRCKN,GPIO23

SDATAN0,GPIO24

SDATAN1,GPIO25

SDATAN2,GPIO26

SDATAN3,GPIO27

SDCAS

SDRAS

NC1

NC2

NC3

NC4

SCLK0

HDATA4,GPIO4

AUDATA4,GPIO28

VSS2

VDD2

MCLK

SCLK1

HDATA5,GPIO5

HDATA6,GPIO6

HDATA7,GPIO7

AUDATA5,GPIO29

AUDATA6,GPIO30

AUDATA7,XMT958B,GPIO31

SD_DATA3,EXTD3

SD_DATA4,EXTD4

SD_DQM0

SD_DATA5,EXTD5

VSSSD4

VDDSD4

SD_DATA6,EXTD6

SD_DATA7,EXTD7

SD_DQM1

SD_DATA15,EXTA18

SD_DATA14,EXTA17

NC5

SD_DATA13,EXTA16

VSSSD3

VDDSD3

SD_DATA12<XETA15

SD_DATA11,XETA14

SD_DATA10,EXTA13

SD_DATA9,EXTA12

SD_DATA8,EXTA11

VSSSD2

VDDSD2

SD_CLK_OUT

SD_ADDR9,EXTA9

SD_ClL_IN

SD_ADDR8,EXTA8

SD_ADDR7,EXTA7

SD_CLK_EN

SD_ADDR6,EXTA6

SDCS

SD_ADDR5,EXTA5

SD_ADDR4,EXTA4

VSSSD1

VDDSD1

SD_BA,EXTA19

SD_ADDR10,

EXTA10

GPIO20

FA0,FSCCLK

FHS2,FSCDIO,FSCDOUT

GPIO21

FDAT7

VDD6

VSS6

FHS0,_FWR,_FDS

FHS1,_FRD,_FR/W

FDATA6

FCS

FINTREQ

FDBCK

FDAT4

FDAT5

VDD7

VSS7

FDAT3

FDBDA

FDAT2

DBDA

DBCK

FDAT1

TEST

FDAT0

NVWE,GPIO16

NVOE,GPIO15

NVCS,GPIO14

CS494003CQZ

Q701

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

MX29LV040

Q702

A020

A119

A1031

A11 1

A12 12

A13 4

A14 5

A15 11

A16 10

A17 6

A18/VPP 9

A218

A317 A4 16

A5 15

A6 14

A7 13

A8 3

A9 2

DQ021

DQ122

DQ223

DQ325

DQ426

DQ527

DQ628

DQ729

VCC 8

VSS

24

CE

30

OE

32

WE/A18

7

C7021

104Z

C7007

104Z

C7020

104Z

C7003 104Z

C721

104Z

C722

104Z

C811

104Z

C395

101J

C394

101J

C393

101J

C392

101J

C391

101J

C390

101J

C6411

223Z

C9512

223Z

C9511

223Z

C6403

223Z

C6405

223Z

C367

104Z

C6409

223Z

C818

NC

C817

330J

C800

330J

C808

104Z

C805

104Z

C814

330J

C104 101J

C106

101J

C7006

104Z

C7014

104Z

C781

104Z

C806

104Z

C815

104Z

C352

104Z

C365

222J

C351

330J

C350

221J

C182

NC

C183

C185

NC

C186

NC

C187

NC

C366

104Z

C7008

104Z

C7009

104Z

C325

104Z

C326

104Z

C322

104Z

C304C305 C303

101J

C312

101J

C313

101J

C314C315C316C317C318C319C320C321 C300C301C302

101J

C310C311

C328

330J

C327

330J

C323

104Z

C308

103Z

R7315

R6411

1.0

1/2W

R109

330

1/2W

R6403

33

1/2W

R6422

4.7

R6421

4.7

R7041

NC

R405

47K

R717

220

R389

1.2K

R363

R397

R390

22K

R381

22K

R375 1.2K

R379

22K

R380

22K

R374 1.2K

R396

R344

R373

1.2K

R331

1.2K

R377

22K

R6407

3.3

1W

R6408

R6405

R6406

R809 4.7

R811

330

R812

330

R814

330

R813

330

R355

10K

R356

10K

R806

1K

R800

56

R803

1K

R805

1K

R823

56

R822

56

R821

56

R824

1K

R846

NC

R847

NC

R848

1K

R829

1K

R827

NC

R808

1K

R7317

R7316

R7314

R7313

R7312

R7311

R7033

47K

R7080

*

INIT3

R7079

*

INIT2

R7078

*

INIT1

R7180

*

R7178

*

R7179

*

R7004

R7005

1K

R7001

2.2K

R7002

2.2K

R7003

BAND

R102 22K

R103

22K

R7839

22K

R107

NC

R104 100K

R7138

22K

R7042

NC

R7044

1K

R7045

1K

R7048

220

R7046

1K

R7049

1K

R7050

1K

R7051

1K

R7047

220

R7053

220

R7052

1K

R7043

220

R7141

NC

R7021

2.2K

R7022

220

R7023

220

R7024

220

R7025

220

R7026

220

R7027

220

R7028

220

R7029

220

R7030

220

R7036

220

R7039

2.2K

R7040

220

R7038

2.2K

R7031

220

R7032

220

R7037

220

R7035

220

R7034

470

R7134

1K

R7067

220

R7068

220

R7069

220

R7070

220

R7072

220

R716

220

R718

220

R7318

R700

330

R701

3K

R703

3.3K

R705

10K

R707

10K

R709

3.3K

R702

3.3K

R708

3.3K

R711

3.3K

R7193.3K

R720

3.3K

R721

3.3K

R712

10K

R722

10K

R723

3.3K

R724

47

R725

47

R726

47

R727

47

R728

47

R729

47

R730

47

R731

47

R733

47

R736

47

R735

47

R734

47

R732

47

R750 3.3K

R737 47

R738

47

R739

47

R740

47

R741

47

R742

47

R744

47

R745

47

R743

47

R710

220

R704

220

R706

220

R751 220

R749

220

R748

220

R747

220

R746

220

R714

3.3K

R713

3.3K

R715

3.3K

R763

22

R762

22

R781 1M

R401

47K

R404

47K

R403

47K

R402

47K

R410 470K

R409

470K

R807

56

R849

R816

56

R828

2.2K

R804

56

R802

56

R801

56

R819

56

R820

560

R818

330

R817

56

R810

12K

R855

100K

R854 100K

R853

15K

R852

15K

R826

56

R825

56

R7081

220

R7082

220

R7084 220

R7085

220

R7083 220

R384

220K

R382

22K

R378

22K

R330

1.2K

R376

270

R388

100

R385

100

R383

10K

R370

3.9K

R369

1.8K

R367

1K

R368

47K

R350

220K

R349

220K

R6402

10

1/2W

R181

NC

R345

47K

R346

47K

R357

000J

R358

000J

R832

2.2K

R833

4.7K

R835

2.2K

R834

4.7K

R831

2.2K

R836

2.2K

R837

4.7K

R839

2.2K

R838

4.7K

R840

2.2K

R841

4.7K

R843

2.2K

R842

4.7K

R845

4.7K

R844

2.2K

R877

4.7K

R874

4.7K

R873

4.7K

R862

4.7K

R865

4.7K

R866

4.7K

R870

4.7K

R884

2.2K

R869

4.7K

R879

2.2K

R880

2.2K

R883

2.2K

R887

2.2K

R888

2.2K

R891

2.2K

R892

2.2K

R7014

82

R354

4.7K

R353

4.7K

R7015

82

R7016

82

R7008

220

R7009

220

R7062 1K

R7063

1K

R7061

220K

R7010

220

R7012

NC

R352

000J

R351

000J

R309

000J

R308

000J

R302

330

R7011

NC

R7017

82

R7018

82

R7019

220

R7020

220

R7064 1K

R7065 1K

R7076

1K

R7066

1K

R7071

4.7K

R7120

1K

R7060

47K

R326

47K

R305

330

R328

47K

R329

47K

R327

47K

R325

470K

R303

330

R334

470K

R335

470K

R313

330

R336

47K

R337

47K

R315

330

R338

47K

R317

330

R340

47K

R341

47K

R319

330

R342

47K

R343

47K

R321

330

R339

47K

R322

47K

R323

47K

R301

330

R324

470K

R7077

1K

R332

47K

R311

330

R333

47K

R362

10K

R361

10K

R320

330

R318

330

R316

330

R312

330

R314

330

R310

330

R307

NC

R306

NC

R300

330

R304

330

R347

10K

R386

1.5K

R387

1.5K

R348

10K

R360

390

R359

390

Q305

OR MPC4570

NJM4565M

5

8

6

7

Q804

NJM4565M-D

5

8

6

7

Q802

NJM4565M-D

5

8

6

7

Q801

NJM4565M-D

5

8

6

7

Q803

NJM4565M-D

5

8

6

7

Q302

OR MPC4570

NJM4565M-D

5

8

6

7

Q305

OR MPC4570

NJM4565M

3

2

4

1

Q801

NJM4565M-D

3

2

4

1

Q802

NJM4565M-D

3

2

4

1

Q803

NJM4565M-D

3

2

4

1

Q804

NJM4565M-D

3

2

4

1

Q302

OR MPC4570G2

NJM4565M-D

3

2

4

1

C109

C380

C357

C356

C355

C354

47/16

C9510

220/63

C9505

2200/35

C9506

470/35

C6404

10/16

C6406

10/16

C362

10/16

C6412

10/16

C6410

10/16

C9508

4700/16

C9507

220/35

C809

330/6.3

C804

2.2/50

C7005

100/6.3

C7001

104F

C7002

100/6.3

C101

3.3/50

C103

3.3/50

C7004

1/50

C7011

47/16

C7012

47/16

C7015

47/16

C701 47/16

C704

2.2M

TANTAL

C703

47/16

C713

1/50

C751

C807

100/6.3

C813

330/6.3

C816

100/6.3

C846

10/16

C847

10/16

C7307

NC

C353

47/16

C358

47/16

C349

10/16

C184

NC

C181

NC

C359

10/16

C341

100/16

C342

100/16

C854

10/16

C853

10/16

C852

10/16

C851

10/16

C850

10/16

C856

10/16

C855

10/16

C844

220/16

C843

220/16

C346

10/16

C345

10/16

C347

10/16

C348

10/16

C363

10/16

C364

10/16

C368

10/16

C374

10/16

C373

10/16

D7003

D9506

D9502D9504

D9503

D9502-9505:

RL1N4003

D9505

D9507

D7002

1SS352

D7001

D7004

1SS352

D802

D806

D801 D805

C7010

104Z

C706

680J

C702

104Z

C708

104Z

C707

104Z

C715

104Z

C714

104Z

C712

104Z

C711

104Z

C710

104Z

C709

104Z

C719

104Z

C718

104Z

C716

104Z

C705

122J

C717

104Z

C720

101J

C752

104Z

C7305

NC

C7306

NC

C7304

NC

C7303

NC

C7302

NC

C7301

NC

C361

224K

C360

474K

C379

224K

C378

224K

C377

474K

C375

474K

C343

104Z

C344

104Z

C381

104J

C376

104J

C372

104J

C371

104J

C369

472J

C370 472J

Q310

Q309

Q314

Q311

Q308

RN1441

Q316

Q313

RN1441

Q307

RN1441

Q312

RN1441

Q318

Q319

Q317

Q306

OR KRA102S

RN2402

Q323

OR KRA102S

RN2402

Q320

OR KRA102S

RN2402

P351

C9513

104J

C9514

104J

C9502

104J

C9515 104

C9516 104

C6421

104J

C6401

104J

C9503

104J

C9501

104J

C826

821J

C825

821J

C824

821J

C823

822J

C822

821J

C821

821J

C820

821J

C830

101J

C829

122J

C832

101J

C831

122J

C833

122J

C834

101J

C835

101J

C836

123J

C838

101J

C837

122J

C840

101J

C839

122J

C842

101J

C841

122J

Q7002

TC74VHC541FT

A1 2

A2 3

A3 4

A4 5

A5 6

A6 7

A7 8

A8 9

GND10

VCC20

Y118

Y217

Y316

Y415

Y514

Y613

Y712

Y8

11

G1

1

G2

19

X181

L7302

LL241

L703

220M

L7302

L701

022M

L7001

470K

NCH-1479

L7002

022M

NCH-1471

L702

022M

L751

022M

L783

220K

L781

LM182

L782

LM182

L803

022M

L800

022M

L801

022M

L802

LM182

L7301

NC

L181

NC

X7001

CSTCV12.5MXJ

X781

CSTCV12.2MTJ0C4

P7701

TO RS232C

R9507

15K

R9509

100K

R9506

22(1/2W)

R9508

15K

R7000

100

R186

47K

R185

47K

R187

47K

R184

NC

R182

NC

R183

NC

Q6408

Q7007

KRC104S

OR RN1404

Q7006

KRC104S

OR RN1404

Q7001

KRC104S

RN1404

D109

UDZS5.1B

D9508

UDZS27D

D7702

UDZS6.2B

Q7008

MPD784225GC-267-8BT

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

P101

TO TUNER UNIT

P801

P412BFLASH

TC74HCT7007AF

Q7003

1

2

3

4

5

6

78

9

10

11

12

13

14

P301

CD

TAPE-1 IN

TAPE-1 OUT

P305

FRONT

SURR

CENTER

P304

VIDEO-1 OUT

VIDEO-1 IN

VIDEO-2 IN

P261A

Q322

79L07

G

IO

Q321

78L07

G

IO

P411B

TO NAETC-8238

P7502B

TO NADIS-8231

P6403

Q6403 79M12

G

I

O

Q6402

78M12

G

IO

Q6405

78M12

G

I

O

Q6406

7805

G

I

O

Q6407

Q9501

2SA1015-GR

KTA1266-GR

P406

P410B

TO NAETC-8238

P306

Q7004 BA33C25FP

2.5V

5

3.3V

4

G

3

NC

2

VI

1

+22V

SEC1-1

+22V

+7V

+12VA

DMIXR

DMIXL

SEC1-2

CDR SELDA

-VP

SEC3-1

SELCK

SELMUT

-7V -12VA

-22V

SEC3-2

TOL

STEREO

SD

TMUT

TUR

GND

TUL

RDSDET

+12VA

FMSIG

GND

PLLCL

PLLDA

PLLSTB

TX

RX1

+5VDSP

RX2

RX3

VMUT1

VMUT2

CTLB

CTLA

RI

CNPT

GND

+12VVD

V1OL

V1OR

TOL

TOR

CDL

5.6S

TOR

PROTHERM

+12VVD

TUR

TUL

CTLB

V4R

CTLA

TIR V4L

POWER

CDR +5VDSP

VMUT1

VMUT2

SPF SPF

CDL

SPCS SPCS

TIR

SEC1H SEC1H

TMUT

PLLCL

PLLDA

PLLSTB

AMUT

PLLDI

TIL TIL

STEREO

SD

SPB SPB

V3IR OUT_R

CNPT VOLH

V3IR V3IL

PROTECT

V2IR OUT_L

HPIN

GND

V2IL

V1IR OUT_C

RI

+13V

V3IL V1IL OUT_RS

AMUT

HPIN

OUT_LS OUT_L

MCRDY

OUR_LB

T1RECMUT HPMUT

MCSDA

V1RECMUT

MCRST

MCMDA

OUT_SW

SELMUT

MCCLK

DVDR

SELCK

MCMDA

MCRST

DVDL

SELDA MCSDA

HPMUT

OUT_R LPO

CODECPD MCRDY

-VP

V2IR

GND

CODECCS

OUT_RS

RPO

FCS

MC

MCRDY

DRES 232TXD

MRS RSPO

IC

V1OR

V1OL

232RXD

V2IL MLS

GND

FVCC

DSPCLK

LSPO MPURST

DSPDA

MSW MCCLK

DSI

OUT_LS CPO MCMDA

MCSDA

OUT_C

SBO

GND

ADCR+ PROTHERM

DAC_R

DAC_L

DAC_C

DAC_RS

DAC_LS

DAC_SBL

DAC_SW

ADCL+

V1IR

VOLH

PROTECT

DSPCLK

DSPDA

FCS

DRES

V1IL

DVDR

SWPO

IC

DVDL DAC_L

DMIXR

DMIXL

+5VDSP

MRS RDSSCK

AMUT

RDSSIG

MLS

INT1

INT0

FINT

INTDSP

RDSDATA

CODECPD

CODECCS

DSPCLK_33

DSPDA_33

3VFCS

3VDRES

3VSCS

+12VA

MSW

T1RECMUT

V1RECMUT

MC

RDSSIG

DAC_R

RDSDATA

DAC_SW

+2.5

+3.3V

RDSDET

SDCLK

A9

DSI

ADCL+

ADCR+

3VINT

A10

SDCS

A4

A5

A6

A7

A8

A11

A12

A13

A14

A15

A16

A17

A18

UDQM

D7

D6

D5

LDQM

D4

D3

SDBA

INTDSP

CS_SDVDD

CKE

3VDSI

A3 A4

A2 A5

A1 A6

A0 A7

D0 A12 A0 D2

A18

D1 A15 A1 D1

D2 A16 A2 D0

A3 SDWE

D3

RAS

CS

CODECPD

D4 CAS OE

CODECCS

DSPDA_33

DSPCLK_33

D5 A17 WE

+12VA D6 A14

DACDA4

+5VDSP

D7 A13

DACDA3

CS A8

SAI_SDOUT

DACDA2 INT1

A10 A9

-12VA

DACDA1 FINT

OE A11

DAC_LS

DAC_RS

DAC_SBL

3VINT1

WE

DIRLRCK

3VINT0

DIRBCK

INT0

3VFINT

3VDSI

3VINT1

3VINT0

3VFINT

DALRCK

DACBCK

ADSDO

3VFCS

DIRLRCK

DIRBCK

SAI_SDOUT

D0 A18

D1

A17

3VINT

DIRMCKO

D2 A16

D3 A15

+3.3V

D4 A14

OMCK

DAC_SW D5 A13

DACBCK

+5VDSP

D6 A12

DACDA4

D7 A11

DACDA3

DALRCK

LDQM

3VINT1

DAC_C DSPXTI SDWE

UDQM

CAS

SDCLK

3VINT0

DIRBCK

DIRLRCK

RAS CKE

SDCS

+5VDSP

SDBA A9

A10 A8

A0 A7

DAC_R

A1 A6

A2 A5

CS_VDD

A3 A4

DSPCLK_33

DIRLRCK

DSPDA_33

DIRBCK

3VDSI

DAC_L

3VDRES

DSPXTI

3VSCS

RX1

RX2

RX3

TX

SAI_SDOUT

TX

RX1

RX2

RX3

Refer to the following table about the parts displyed by mark " "

DESCRIPTION

R7003 000J

R7078 000J

R7079 10K

R7080 4.7K

R7178 NO

R7179 33K

R7180

33K

U01

TO NAETC-8234

L

R

L

R

SUBWOOFER

PREOUT

TO NAAF-8235

NC

TO NAETC-8243

DVD

SUBWOOFER

P302

NC

REF. NO.

NC

101K101K

NC

101J

NC

101J

101J101J 101J101J

NC

PRE-AMPLIFIER PC BOARD

<Notes>

NC=No mount of parts.

NADG-8230

104

UHS0.GPIO18

UHS1,GPIO19

INTREQ

FA1,FSCDIN

1

2

3

4

AUDATA2

HDATA3,GPIO3

LRCK0

AUDATA3,XMT958A

105

106

107

108

SDADDR3,EXTA3

SD_ADDR2,EXTA2

SD_ADDR1,EXTA1

SD_ADDR1,EXTA173

74

75

76

SDWE

SD_DATA0,EXTD0

SD_DATA1,EXTD1

SD_DATA2,EXTD2

33

34

35

36

NC

AGND11

AGND22

INA13

GOUTFL 79

VINFL 78

VINFR

80

GOUTSB 51

GOUTSL 53

VINCB 52

INDVDCB29

INDVDSL28

INDVDSW

30

LOUT243

NC4

42

ROUT3

41

BICK1 18

CDTO 20

LRCK1 19

BOUT 2

INT1 1

TVDD 3

58

59

60

NC9

RX1

TEST1

NC

A

1

2

3

4

5

BCDEFGH

SCHEMATIC DIAGRAMS-1

PRE-AMPLIFIER SECTION

HT-R820THX HT-R820THX

D9513 D2SB80A

Q7301

A021

A122

A1020

A1119

A223

A324

A4 27

A5 28

A6 29

A7 30

A8 31

A9 32

CKE 34

CLK 35

DQ02

DQ13

DQ10 42

DQ11 43

DQ12 45

DQ13 46

DQ14 48

DQ15 49

DQ25

DQ36

DQ48

DQ59

DQ611

DQ712

DQ8 39

DQ9 40

GND1 26

GND2 50

GNDQ14

GNDQ210

GNDQ3 41

GNDQ4 47

LDQM

14

NC1 33

NC2 37

UDQM 36

VCC01

VCC1

25

VCCQ17

VCCQ2

13

VCCQ3 38

VCCQ4

44

CAS16

CS

18

RAS

17

WE15

BD3817KS

Q301

1

AGND1067

AGND1177

AGND12 86

AGND13 90

AGND14 97

AGND15

100

2

AGND323

AGND4

31

AGND535

AGND646

AGND7

50

AGND8 59

AGND9 62

AOUT1

32

AOUT2

33

BNFA1 74

BNFA2 72

BNFB1 73

BNFB2 71

CL 84

DATA 85

GOUTC 57

79

GOUTFR 81

51

53

GOUTSR55

GOUTSW48

3

INA24

INB15

INB26

INC17

INC28

IND19

IND210

INDSPC40

INDSPCB43

INDSPFL39

INDSPFR38

INDSPSL42

INDSPSR41

INDSPSW44

INDVDC26

29

INDVDFL

25

INDVDFR24

28

INDVDSR27

30

INE111

INE212

INF113

INF214

ING115

ING2

16

INH117

INH2

18

INI1

19

INI220

INJ121

INJ222

MUTE 83

NC1

34

NC236

NC337

NC445

NC5

47

NC6 60

NC7 69

NC8 88

OUT1 98

OUT2 99

OUTC 66

OUTCB 63

OUTFL 68

OUTFR 70

OUTSL 64

OUTSR 65

OUTSW 61

ROUTA1 91

ROUTA2 92

ROUTB1 93

ROUTB2 94

ROUTC1 95

ROUTC2 96

THGND 82

TNF1 76

TNF2 75

VCC 89

VEE 87

VINC 58

52

78

80

VINSL 54

VINSR 56

VINSW

49

Q800

AK4588VQ

AVDD55

AVSS56

18

BICK2 15

2

CAD070

CAD172

CCLK/SCL

21

CDTI/SDA

22

20

COUT 11

CSN

23

DAUX1

24

DAUX275

DVDD 4

DVSS

5

DZF1 34

DZF2/OVF 33

I2C74

INT080

1

LIN51

LOUT147

43

LOUT3

39

LOUT4 35

19

LRCK2 16

MASTER 32

MCKO1 10

MCKO2 9

MCLK77

NC1 36

NC10

62

NC2 38

NC3 40

42

NC544

NC646

NC748

NC850

58

PDN 31

PVDD66

PVSS64

R65

RIN52

ROUT149

ROUT245

41

ROUT4 37

RX057

59

RX261

RX363

RX467

RX569

RX671

RX773 SDTI1 28

SDTI2 27

SDTI3 26

SDTI4 25

SDTO1 17

SDTO2 14

60

TEST268

TEST3 8

3

TX078

TX179

UOUT 12

VCOM53

VIN76

VOUT 13

VREFH54 XTI 7

XTL0 30

XTL1 29

XTO 6

Q181

CIN8

FLOUT7MODE10

MPXIN4

RDCL16

RDDA2

RDS-ID/1

RST 15

TEST 9

VDDA5 VDDD12

VREF3

VSSA6 VSSD11

XIN 13

XOUT

14

Q703

TC7WU04FU

GND4

1

63

72

5

VCC

8

RESET

UHS,_CSOUT,GPIO17

SCCLK

HINBSY,GPIO8

SCDOUT,SCDIO

A1,GPIO12

VDD5

VSS5

SCDIN

SCS

FSCLKN1,STCCLK2

VSS4

VDD4

FSDATAN1

A0.GPIO13

CS,GPIO9

CLKSEL

CLKIN,XTALI

XTALO

PLLVDD

FILT1

FILT2

PLLVSS

WR._DS,GPIO10

RD,_R/W,GPIO11

FLRCKN1

CMPDAT,FSDATAN2

CMPREQ,FLRCLKN2

HDATA0,GPIO0

HDATA1,GPIO1

VDD3

VSS3

HDATA2,GPIO2

CMPCLK,FSCLKN2

AUDATA0

AUDAUA1

VSS1

VDD1

LRCK1

SCLKN,GPIO22

LRCKN,GPIO23

SDATAN0,GPIO24

SDATAN1,GPIO25

SDATAN2,GPIO26

SDATAN3,GPIO27

SDCAS

SDRAS

NC1

NC2

NC3

NC4

SCLK0

HDATA4,GPIO4

AUDATA4,GPIO28

VSS2

VDD2

MCLK

SCLK1

HDATA5,GPIO5

HDATA6,GPIO6

HDATA7,GPIO7

AUDATA5,GPIO29

AUDATA6,GPIO30

AUDATA7,XMT958B,GPIO31

SD_DATA3,EXTD3

SD_DATA4,EXTD4

SD_DQM0

SD_DATA5,EXTD5

VSSSD4

VDDSD4

SD_DATA6,EXTD6

SD_DATA7,EXTD7

SD_DQM1

SD_DATA15,EXTA18

SD_DATA14,EXTA17

NC5

SD_DATA13,EXTA16

VSSSD3

VDDSD3

SD_DATA12<XETA15

SD_DATA11,XETA14

SD_DATA10,EXTA13

SD_DATA9,EXTA12

SD_DATA8,EXTA11

VSSSD2

VDDSD2

SD_CLK_OUT

SD_ADDR9,EXTA9

SD_ClL_IN

SD_ADDR8,EXTA8

SD_ADDR7,EXTA7

SD_CLK_EN

SD_ADDR6,EXTA6

SDCS

SD_ADDR5,EXTA5

SD_ADDR4,EXTA4

VSSSD1

VDDSD1

SD_BA,EXTA19

SD_ADDR10,

EXTA10

GPIO20

FA0,FSCCLK

FHS2,FSCDIO,FSCDOUT

GPIO21

FDAT7

VDD6

VSS6

FHS0,_FWR,_FDS

FHS1,_FRD,_FR/W

FDATA6

FCS

FINTREQ

FDBCK

FDAT4

FDAT5

VDD7

VSS7

FDAT3

FDBDA

FDAT2

DBDA

DBCK

FDAT1

TEST

FDAT0

NVWE,GPIO16

NVOE,GPIO15

NVCS,GPIO14

CS494003CQZ

Q701

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

MX29LV040

Q702

A020

A119

A1031

A11 1

A12 12

A13 4

A14 5

A15 11

A16 10

A17 6

A18/VPP 9

A218

A317 A4 16

A5 15

A6 14

A7 13

A8 3

A9 2

DQ021

DQ122

DQ223

DQ325

DQ426

DQ527

DQ628

DQ729

VCC 8

VSS

24

CE

30

OE

32

WE/A18

7

C7021

104Z

C7007

104Z

C7020

104Z

C7003 104Z

C721

104Z

C722

104Z

C811

104Z

C395

101J

C394

101J

C393

101J

C392

101J

C391

101J

C390

101J

C6411

223Z

C9512

223Z

C9511

223Z

C6403

223Z

C6405

223Z

C367

104Z

C6409

223Z

C818

NC

C817

330J

C800

330J

C808

104Z

C805

104Z

C814

330J

C104 101J

C106

101J

C7006

104Z

C7014

104Z

C781

104Z

C806

104Z

C815

104Z

C352

104Z

C365

222J

C351

330J

C350

221J

C182

NC

C183

C185

NC

C186

NC

C187

NC

C366

104Z

C7008

104Z

C7009

104Z

C325

104Z

C326

104Z

C322

104Z

C304C305 C303

101J

C312

101J

C313

101J

C314C315C316C317C318C319C320C321 C300C301C302

101J

C310C311

C328

330J

C327

330J

C323

104Z

C308

103Z

R7315

R6411

1.0

1/2W

R109

330

1/2W

R6403

33

1/2W

R6422

4.7

R6421

4.7

R7041

NC

R405

47K

R717

220

R389

1.2K

R363

R397

R390

22K

R381

22K

R375 1.2K

R379

22K

R380

22K

R374 1.2K

R396

R344

R373

1.2K

R331

1.2K

R377

22K

R6407

3.3

1W

R6408

R6405

R6406

R809 4.7

R811

330

R812

330

R814

330

R813

330

R355

10K

R356

10K

R806

1K

R800

56

R803

1K

R805

1K

R823

56

R822

56

R821

56

R824

1K

R846

NC

R847

NC

R848

1K

R829

1K

R827

NC

R808

1K

R7317

R7316

R7314

R7313

R7312

R7311

R7033

47K

R7080

*

INIT3

R7079

*

INIT2

R7078

*

INIT1

R7180

*

R7178

*

R7179

*

R7004

R7005

1K

R7001

2.2K

R7002

2.2K

R7003

BAND

R102 22K

R103

22K

R7839

22K

R107

NC

R104 100K

R7138

22K

R7042

NC

R7044

1K

R7045

1K

R7048

220

R7046

1K

R7049

1K

R7050

1K

R7051

1K

R7047

220

R7053

220

R7052

1K

R7043

220

R7141

NC

R7021

2.2K

R7022

220

R7023

220

R7024

220

R7025

220

R7026

220

R7027

220

R7028

220

R7029

220

R7030

220

R7036

220

R7039

2.2K

R7040

220

R7038

2.2K

R7031

220

R7032

220

R7037

220

R7035

220

R7034

470

R7134

1K

R7067

220

R7068

220

R7069

220

R7070

220

R7072

220

R716

220

R718

220

R7318

R700

330

R701

3K

R703

3.3K

R705

10K

R707

10K

R709

3.3K

R702

3.3K

R708

3.3K

R711

3.3K

R7193.3K

R720

3.3K

R721

3.3K

R712

10K

R722

10K

R723

3.3K

R724

47

R725

47

R726

47

R727

47

R728

47

R729

47

R730

47

R731

47

R733

47

R736

47

R735

47

R734

47

R732

47

R750 3.3K

R737 47

R738

47

R739

47

R740

47

R741

47

R742

47

R744

47

R745

47

R743

47

R710

220

R704

220

R706

220

R751 220

R749

220

R748

220

R747

220

R746

220

R714

3.3K

R713

3.3K

R715

3.3K

R763

22

R762

22

R781 1M

R401

47K

R404

47K

R403

47K

R402

47K

R410 470K

R409

470K

R807

56

R849

R816

56

R828

2.2K

R804

56

R802

56

R801

56

R819

56

R820

560

R818

330

R817

56

R810

12K

R855

100K

R854 100K

R853

15K

R852

15K

R826

56

R825

56

R7081

220

R7082

220

R7084 220

R7085

220

R7083 220

R384

220K

R382

22K

R378

22K

R330

1.2K

R376

270

R388

100

R385

100

R383

10K

R370

3.9K

R369

1.8K

R367

1K

R368

47K

R350

220K

R349

220K

R6402

10

1/2W

R181

NC

R345

47K

R346

47K

R357

000J

R358

000J

R832

2.2K

R833

4.7K

R835

2.2K

R834

4.7K

R831

2.2K

R836

2.2K

R837

4.7K

R839

2.2K

R838

4.7K

R840

2.2K

R841

4.7K

R843

2.2K

R842

4.7K

R845

4.7K

R844

2.2K

R877

4.7K

R874

4.7K

R873

4.7K

R862

4.7K

R865

4.7K

R866

4.7K

R870

4.7K

R884

2.2K

R869

4.7K

R879

2.2K

R880

2.2K

R883

2.2K

R887

2.2K

R888

2.2K

R891

2.2K

R892

2.2K

R7014

82

R354

4.7K

R353

4.7K

R7015

82

R7016

82

R7008

220

R7009

220

R7062 1K

R7063

1K

R7061

220K

R7010

220

R7012

NC

R352

000J

R351

000J

R309

000J

R308

000J

R302

330

R7011

NC

R7017

82

R7018

82

R7019

220

R7020

220

R7064 1K

R7065 1K

R7076

1K

R7066

1K

R7071

4.7K

R7120

1K

R7060

47K

R326

47K

R305

330

R328

47K

R329

47K

R327

47K

R325

470K

R303

330

R334

470K

R335

470K

R313

330

R336

47K

R337

47K

R315

330

R338

47K

R317

330

R340

47K

R341

47K

R319

330

R342

47K

R343

47K

R321

330

R339

47K

R322

47K

R323

47K

R301

330

R324

470K

R7077

1K

R332

47K

R311

330

R333

47K

R362

10K

R361

10K

R320

330

R318

330

R316

330

R312

330

R314

330

R310

330

R307

NC

R306

NC

R300

330

R304

330

R347

10K

R386

1.5K

R387

1.5K

R348

10K

R360

390

R359

390

Q305

OR MPC4570

NJM4565M

5

8

6

7

Q804

NJM4565M-D

5

8

6

7

Q802

NJM4565M-D

5

8

6

7

Q801

NJM4565M-D

5

8

6

7

Q803

NJM4565M-D

5

8

6

7

Q302

OR MPC4570

NJM4565M-D

5

8

6

7

Q305

OR MPC4570

NJM4565M

3

2

4

1

Q801

NJM4565M-D

3

2

4

1

Q802

NJM4565M-D

3

2

4

1

Q803

NJM4565M-D

3

2

4

1

Q804

NJM4565M-D

3

2

4

1

Q302

OR MPC4570G2

NJM4565M-D

3

2

4

1

C109

C380

C357

C356

C355

C354

47/16

C9510

220/63

C9505

2200/35

C9506

470/35

C6404

10/16

C6406

10/16

C362

10/16

C6412

10/16

C6410

10/16

C9508

4700/16

C9507

220/35

C809

330/6.3

C804

2.2/50

C7005

100/6.3

C7001

104F

C7002

100/6.3

C101

3.3/50

C103

3.3/50

C7004

1/50

C7011

47/16

C7012

47/16

C7015

47/16

C701 47/16

C704

2.2M

TANTAL

C703

47/16

C713

1/50

C751

C807

100/6.3

C813

330/6.3

C816

100/6.3

C846

10/16

C847

10/16

C7307

NC

C353

47/16

C358

47/16

C349

10/16

C184

NC

C181

NC

C359

10/16

C341

100/16

C342

100/16

C854

10/16

C853

10/16

C852

10/16

C851

10/16

C850

10/16

C856

10/16

C855

10/16

C844

220/16

C843

220/16

C346

10/16

C345

10/16

C347

10/16

C348

10/16

C363

10/16

C364

10/16

C368

10/16

C374

10/16

C373

10/16

D7003

D9506

D9502D9504

D9503

D9502-9505:

RL1N4003

D9505

D9507

D7002

1SS352

D7001

D7004

1SS352

D802

D806

D801 D805

C7010

104Z

C706

680J

C702

104Z

C708

104Z

C707

104Z

C715

104Z

C714

104Z

C712

104Z

C711

104Z

C710

104Z

C709

104Z

C719

104Z

C718

104Z

C716

104Z

C705

122J

C717

104Z

C720

101J

C752

104Z

C7305

NC

C7306

NC

C7304

NC

C7303

NC

C7302

NC

C7301

NC

C361

224K

C360

474K

C379

224K

C378

224K

C377

474K

C375

474K

C343

104Z

C344

104Z

C381

104J

C376

104J

C372

104J

C371

104J

C369

472J

C370 472J

Q310

Q309

Q314

Q311

Q308

RN1441

Q316

Q313

RN1441

Q307

RN1441

Q312

RN1441

Q318

Q319

Q317

Q306

OR KRA102S

RN2402

Q323

OR KRA102S

RN2402

Q320

OR KRA102S

RN2402

P351

C9513

104J

C9514

104J

C9502

104J

C9515 104

C9516 104

C6421

104J

C6401

104J

C9503

104J

C9501

104J

C826

821J

C825

821J

C824

821J

C823

822J

C822

821J

C821

821J

C820

821J

C830

101J

C829

122J

C832

101J

C831

122J

C833

122J

C834

101J

C835

101J

C836

123J

C838

101J

C837

122J

C840

101J

C839

122J

C842

101J

C841

122J

Q7002

TC74VHC541FT

A1 2

A2 3

A3 4

A4 5

A5 6

A6 7

A7 8

A8 9

GND10

VCC20

Y118

Y217

Y316

Y415

Y514

Y613

Y712

Y8

11

G1

1

G2

19

X181

L7302

LL241

L703

220M

L7302

L701

022M

L7001

470K

NCH-1479

L7002

022M

NCH-1471

L702

022M

L751

022M

L783

220K

L781

LM182

L782

LM182

L803

022M

L800

022M

L801

022M

L802

LM182

L7301

NC

L181

NC

X7001

CSTCV12.5MXJ

X781

CSTCV12.2MTJ0C4

P7701

TO RS232C

R9507

15K

R9509

100K

R9506

22(1/2W)

R9508

15K

R7000

100

R186

47K

R185

47K

R187

47K

R184

NC

R182

NC

R183

NC

Q6408

Q7007

KRC104S

OR RN1404

Q7006

KRC104S

OR RN1404

Q7001

KRC104S

RN1404

D109

UDZS5.1B

D9508

UDZS27D

D7702

UDZS6.2B

Q7008

MPD784225GC-267-8BT

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

P101

TO TUNER UNIT

P801

P412BFLASH

TC74HCT7007AF

Q7003

1

2

3

4

5

6

78

9

10

11

12

13

14

P301

CD

TAPE-1 IN

TAPE-1 OUT

P305

FRONT

SURR

CENTER

P304

VIDEO-1 OUT

VIDEO-1 IN

VIDEO-2 IN

P261A

Q322

79L07

G

IO

Q321

78L07

G

IO

P411B

TO NAETC-8238

P7502B

TO NADIS-8231

P6403

Q6403 79M12

G

I

O

Q6402

78M12

G

IO

Q6405

78M12

G

I

O

Q6406

7805

G

I

O

Q6407

Q9501

2SA1015-GR

KTA1266-GR

P406

P410B

TO NAETC-8238

P306

Q7004 BA33C25FP

2.5V

5

3.3V

4

G

3

NC

2

VI

1

+22V

SEC1-1

+22V

+7V

+12VA

DMIXR

DMIXL

SEC1-2

CDR SELDA

-VP

SEC3-1

SELCK

SELMUT

-7V -12VA

-22V

SEC3-2

TOL

STEREO

SD

TMUT

TUR

GND

TUL

RDSDET

+12VA

FMSIG

GND

PLLCL

PLLDA

PLLSTB

TX

RX1

+5VDSP

RX2

RX3

VMUT1

VMUT2

CTLB

CTLA

RI

CNPT

GND

+12VVD

V1OL

V1OR

TOL

TOR

CDL

5.6S

TOR

PROTHERM

+12VVD

TUR

TUL

CTLB

V4R

CTLA

TIR V4L

POWER

CDR +5VDSP

VMUT1

VMUT2

SPF SPF

CDL

SPCS SPCS

TIR

SEC1H SEC1H

TMUT

PLLCL

PLLDA

PLLSTB

AMUT

PLLDI

TIL TIL

STEREO

SD

SPB SPB

V3IR OUT_R

CNPT VOLH

V3IR V3IL

PROTECT

V2IR OUT_L

HPIN

GND

V2IL

V1IR OUT_C

RI

+13V

V3IL V1IL OUT_RS

AMUT

HPIN

OUT_LS OUT_L

MCRDY

OUR_LB

T1RECMUT HPMUT

MCSDA

V1RECMUT

MCRST

MCMDA

OUT_SW

SELMUT

MCCLK

DVDR

SELCK

MCMDA

MCRST

DVDL

SELDA MCSDA

HPMUT

OUT_R LPO

CODECPD MCRDY

-VP

V2IR

GND

CODECCS

OUT_RS

RPO

FCS

MC

MCRDY

DRES 232TXD

MRS RSPO

IC

V1OR

V1OL

232RXD

V2IL MLS

GND

FVCC

DSPCLK

LSPO MPURST

DSPDA

MSW MCCLK

DSI

OUT_LS CPO MCMDA

MCSDA

OUT_C

SBO

GND

ADCR+ PROTHERM

DAC_R

DAC_L

DAC_C

DAC_RS

DAC_LS

DAC_SBL

DAC_SW

ADCL+

V1IR

VOLH

PROTECT

DSPCLK

DSPDA

FCS

DRES

V1IL

DVDR

SWPO

IC

DVDL DAC_L

DMIXR

DMIXL

+5VDSP

MRS RDSSCK

AMUT

RDSSIG

MLS

INT1

INT0

FINT

INTDSP

RDSDATA

CODECPD

CODECCS

DSPCLK_33

DSPDA_33

3VFCS

3VDRES

3VSCS

+12VA

MSW

T1RECMUT

V1RECMUT

MC

RDSSIG

DAC_R

RDSDATA

DAC_SW

+2.5

+3.3V

RDSDET

SDCLK

A9

DSI

ADCL+

ADCR+

3VINT

A10

SDCS

A4

A5

A6

A7

A8

A11

A12

A13

A14

A15

A16

A17

A18

UDQM

D7

D6

D5

LDQM

D4

D3

SDBA

INTDSP

CS_SDVDD

CKE

3VDSI

A3 A4

A2 A5

A1 A6

A0 A7

D0 A12 A0 D2

A18

D1 A15 A1 D1

D2 A16 A2 D0

A3 SDWE

D3

RAS

CS

CODECPD

D4 CAS OE

CODECCS

DSPDA_33

DSPCLK_33

D5 A17 WE

+12VA D6 A14

DACDA4

+5VDSP

D7 A13

DACDA3

CS A8

SAI_SDOUT

DACDA2 INT1

A10 A9

-12VA

DACDA1 FINT

OE A11

DAC_LS

DAC_RS

DAC_SBL

3VINT1

WE

DIRLRCK

3VINT0

DIRBCK

INT0

3VFINT

3VDSI

3VINT1

3VINT0

3VFINT

DALRCK

DACBCK

ADSDO

3VFCS

DIRLRCK

DIRBCK

SAI_SDOUT

D0 A18

D1

A17

3VINT

DIRMCKO

D2 A16

D3 A15

+3.3V

D4 A14

OMCK

DAC_SW D5 A13

DACBCK

+5VDSP

D6 A12

DACDA4

D7 A11

DACDA3

DALRCK

LDQM

3VINT1

DAC_C DSPXTI SDWE

UDQM

CAS

SDCLK

3VINT0

DIRBCK

DIRLRCK

RAS CKE

SDCS

+5VDSP

SDBA A9

A10 A8

A0 A7

DAC_R

A1 A6

A2 A5

CS_VDD

A3 A4

DSPCLK_33

DIRLRCK

DSPDA_33

DIRBCK

3VDSI

DAC_L

3VDRES

DSPXTI

3VSCS

RX1

RX2

RX3

TX

SAI_SDOUT

TX

RX1

RX2

RX3

Refer to the following table about the parts displyed by mark " "

DESCRIPTION

R7003 000J

R7078 000J

R7079 10K

R7080 4.7K

R7178 NO

R7179 33K

R7180

33K

U01

TO NAETC-8234

L

R

L

R

SUBWOOFER

PREOUT

TO NAAF-8235

NC

TO NAETC-8243

DVD

SUBWOOFER

P302

NC

REF. NO.

NC

101K101K

NC

101J

NC

101J

101J101J 101J101J

NC

PRE-AMPLIFIER PC BOARD

<Notes>

NC=No mount of parts.

NADG-8230

104

UHS0.GPIO18

UHS1,GPIO19

INTREQ

FA1,FSCDIN

1

2

3

4

AUDATA2

HDATA3,GPIO3

LRCK0

AUDATA3,XMT958A

105

106

107

108

SDADDR3,EXTA3

SD_ADDR2,EXTA2

SD_ADDR1,EXTA1

SD_ADDR1,EXTA173

74

75

76

SDWE

SD_DATA0,EXTD0

SD_DATA1,EXTD1

SD_DATA2,EXTD2

33

34

35

36

NC

AGND11

AGND22

INA13

GOUTFL 79

VINFL 78

VINFR

80

GOUTSB 51

GOUTSL 53

VINCB 52

INDVDCB29

INDVDSL28

INDVDSW

30

LOUT243

NC4

42

ROUT3

41

BICK1 18

CDTO 20

LRCK1 19

BOUT 2

INT1 1

TVDD 3

58

59

60

NC9

RX1

TEST1

NC

A

1

2

3

4

5

BCDEFGH

SCHEMATIC DIAGRAMS-2

DISPLAY SECTION

HT-R820THX HT-R820THX

P7502A

F2

NP

P35

P34

P33

P32

P31

P30

P29

P28

P27

P26

P25

P24

P23

P22

P21

P20

P19

P18

P17

P16

P15

P14

P13

P12

P11

P10

P9

P8

P7

P6

P5

P4

P3

P2

P1

16G

15G

14G

13G

12G

11G

10G

9G

8G

7G

6G

5G

4G

3G

2G

1G

NP

F1

Q7501 HNA-16MM39T

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

JL7501B

JL7501A

JL7502A

JL7502B

S7638

FM MODE

S7637

CD

S7614

TONE

S7627

MEMORY

S7625

DIGITAL

INPUT

S7624

DISPLAY

S7626

----

S7647

SET UP

S7616

SP B

S7617

SP A

S7615

STANDBY

S7645

TUNING<

S7644

TUNING>

S7643

ENTER

S7642

PRESET<

S7641

PRESET>

S7646

RETURN

S7635

TAPE

S7634

VIDEO3

S7633

VIDEO2

S7632

VIDEO1

S7631

DVD

ADJUST

S7636

TUNER

S7623

LISTEN

MODE>

S7622

LISTEN

MODE<

S7621

MULTI

CH

S7613

TONE-

S7612

TONE+

S7611

P7503A

P999

NC

S7501

E7501

Q7504

RN2403

KRA103S

U7501

PIC-3704TH2

L7505

220K

NCH1477Z

L7504

220K

NCH1477Z

Q7502

MPD780232GC-096-8BT

21:ANI1

21

22:ANI0

22

41:P45/FIP37

41

42:P44/FIP36

42

43:P43/FIP35

43

61:FIP19

61

ANI220

ANI319

AVDD24

AVSS18

FIP0

80

FIP1 79

FIP10 70

FIP11 69

FIP12 68

FIP13 67

FIP14 66

FIP15 65

FIP16 64

FIP17 63

FIP18 62

FIP2 78

FIP20 58

FIP21 57

FIP22 56

FIP23 55

FIP3 77

FIP4 76

FIP5 75

FIP6 74

FIP7 73

FIP8 72

FIP9 71

IC5

P01/INTP116

P02/TI17

P20/SCK314

P21/SO313

P2212

P2311

P24/BUSY10

P25SO19

P26/SI18

P27/SCK17 P30/FIP24 54

P31/FIP25 53

P32/FIP26 52

P33/FIP27 51

P34/FIP28 50

P35/FIP29 49

P36/FIP30 48

P37/FIP31 47

P40/FIP32 46

P41/FIP33 45

P42/FIP34 44

P46/FIP3840

P47/FIP3939

P50/FIP4038

P51/FIP4137

P52/FIP4236

P53/FIP4335

P54/FIP4434

P55/FIP4533

P56/FIP4632

P57/FIP4731

P60/FIP4830

P61/FIP4929

P62/FIP5028

P63/FIP51

27

P64/FIP5226

POO/INTP015

VDD025

VDD11

VDD2 59

VLOAD60

VSS023

VSS12

X13

X2

4

RESET6

P7501

PHONES

R7637 3.9K R7636 2.2K

R7613

560

R7626

2.2K

R7625

1.2K

R7624

820

R7623 560

R7646

2.2K

R7513

R7531

220

R7616

1.2K

R7615

820

R7524 1K

R7617

2.2K

R7641

330R7645 1.2K R7644 820 R7643 560 R7642 470

R7631

330

R7632

470R7633 560R7634 820R7635 1.2K

R7621

330

R7622

470

R7612

470

R7611

330

Q7507

Q7506

RN1402

KRC102S

X7501

CST5.00MGW

Q7503

2SC2712

KTC3875

R7580

10K X 15

D7504

D7505

STANDBY

D7501

UDZ8.2B

D7502

UDZ5.1B

D7507

1SS352

D7503

1SS352

C7521

220/6.3

C7514

100/6.3

C7502

33/50

C7523 102J

C7522 101J

C7511

102J

C7513

104Z

C7515

104Z

C7516

104Z

C7517

102J

C7519

102J

C7520

102J

C7518

102J

C7508 102J

C7509

102J

C7506

104Z

C7501

104Z

C7503

104Z

C7507

104Z

C7505

473Z

C7504

473Z

C7510

102J

R7504

47k

R7514

L7503

L7502

L7501

R7512 10K

R995

NC

R996

NC

R997

NC

R998

NC

R999

10K

R7516 10K

R7519

100K

R7518

100K

R7515

10K

R7507 4.7K

R7517 1K

R7503

10K

R7520 2.7K

R7521

2.7K

R7501 220

R7502

220

R7506 4.7K

R7532

10K

R7527

10K

R7526

10K

R7530

1K

R7529

560

R7528

560

R7508

4.7K

R7509 4.7K

R7510

1K

R7511

1K

R7522 2.7K

R7523

2.7K

R7505

220K

G[11]

G[1]

G[16]

P[1]

G[2]

G[3]

G[4]

G[5]

G[6]

G[7]

G[8]

G[9]

G[10]

G[12]

G[13]

G[14]

G[15]

P[28]

P[32]

P[35]

P[2]

P[3]

P[4]

P[5]

P[6]

P[7]

P[8]

P[9]

P[10]

P[11]

P[12]

P[13]

P[14]

P[15]

P[16]

P[17]

P[18]

P[19]

P[20]

P[21]

P[22]

P[23]

P[24]

P[25]

P[26]

P[27]

P[29]

P[30]

P[33]

P[34]

P[31]

P[35]

P[34]

P[33]

P[32]

P[31]

P[30]

P[29]

P[28]

P[27]

P[26]

P[25]

P[24]

P[23]

P[22]

P[21]

P[20]

P[19]

P[18]

P[16]

P[15]

P[14]

P[13]

P[12]

P[10]

P[9]

P[8]

P[7]

P[6]

P[5]

P[4]

P[3]

P[2]

P[1]

P[11]

P[17]

G[1;16]

G[3]

G[14]

G[13]

G[12]

G[11]

G[9]

G[8]

G[7]

G[6]

G[5]

G[4]

G[16]

G[15]

G[10]

G[2]

G[1]

SYSOUT

IRF

VAJ

VBJ

STBYLED

SYSIN

SBMLDY

SBMDI

SBMDO

SBMCLK

SBMRST

K3

K1

K2

K0

K1

K2

K3

GND

KEY0

HPDET

GND

HPL

HPE

HPR

SYSIN

HPDET

SBMLDY

SBMDI

SBMDO

SBMCLK

SBMRST

-VP

+5.6S

FAC2

FAC1

HPR

HPE

HPL

GND

NAETC-8233

NASW-8232

NADIS-8231

TO NAETC-8238

TO NADG-8230

U03

MASTER VOLUME

U04

R7581 100k X 14

<Notes>

NC=No mount of parts.

NOTE

THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY

REPLACE ONLY WITH PART NUMBER SPECIFIED

VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)

ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.

ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.

ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.

ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.

ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.

EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF

ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.

THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.

EX) PRINTING SIDE

CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

IS DC VOLTAGE, AT NO INPUT SIGNAL.

R7582

NC

100K X 13

NC

U02

DISPLAY PC BOARD

FL TUBE

NC

STEREO

HEADPHONE TERMINAL

PC BOARD

OPERATION SWITCH

PC BOARD

A

1

2

3

4

5

BCDEFGH

SCHEMATIC DIAGRAMS-2

DISPLAY SECTION

HT-R820THX HT-R820THX

P7502A

F2

NP

P35

P34

P33

P32

P31

P30

P29

P28

P27

P26

P25

P24

P23

P22

P21

P20

P19

P18

P17

P16

P15

P14

P13

P12

P11

P10

P9

P8

P7

P6

P5

P4

P3

P2

P1

16G

15G

14G

13G

12G

11G

10G

9G

8G

7G

6G

5G

4G

3G

2G

1G

NP

F1

Q7501 HNA-16MM39T

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

JL7501B

JL7501A

JL7502A

JL7502B

S7638

FM MODE

S7637

CD

S7614

TONE

S7627

MEMORY

S7625

DIGITAL

INPUT

S7624

DISPLAY

S7626

----

S7647

SET UP

S7616

SP B

S7617

SP A

S7615

STANDBY

S7645

TUNING<

S7644

TUNING>

S7643

ENTER

S7642

PRESET<

S7641

PRESET>

S7646

RETURN

S7635

TAPE

S7634

VIDEO3

S7633

VIDEO2

S7632

VIDEO1

S7631

DVD

ADJUST

S7636

TUNER

S7623

LISTEN

MODE>

S7622

LISTEN

MODE<

S7621

MULTI

CH

S7613

TONE-

S7612

TONE+

S7611

P7503A

P999

NC

S7501

E7501

Q7504

RN2403

KRA103S

U7501

PIC-3704TH2

L7505

220K

NCH1477Z

L7504

220K

NCH1477Z

Q7502

MPD780232GC-096-8BT

21:ANI1

21

22:ANI0

22

41:P45/FIP37

41

42:P44/FIP36

42

43:P43/FIP35

43

61:FIP19

61

ANI220

ANI319

AVDD24

AVSS18

FIP0

80

FIP1 79

FIP10 70

FIP11 69

FIP12 68

FIP13 67

FIP14 66

FIP15 65

FIP16 64

FIP17 63

FIP18 62

FIP2 78

FIP20 58

FIP21 57

FIP22 56

FIP23 55

FIP3 77

FIP4 76

FIP5 75

FIP6 74

FIP7 73

FIP8 72

FIP9 71

IC5

P01/INTP116

P02/TI17

P20/SCK314

P21/SO313

P2212

P2311

P24/BUSY10

P25SO19

P26/SI18

P27/SCK17 P30/FIP24 54

P31/FIP25 53

P32/FIP26 52

P33/FIP27 51

P34/FIP28 50

P35/FIP29 49

P36/FIP30 48

P37/FIP31 47

P40/FIP32 46

P41/FIP33 45

P42/FIP34 44

P46/FIP3840

P47/FIP3939

P50/FIP4038

P51/FIP4137

P52/FIP4236

P53/FIP4335

P54/FIP4434

P55/FIP4533

P56/FIP4632

P57/FIP4731

P60/FIP4830

P61/FIP4929

P62/FIP5028

P63/FIP51

27

P64/FIP5226

POO/INTP015

VDD025

VDD11

VDD2 59

VLOAD60

VSS023

VSS12

X13

X2

4

RESET6

P7501

PHONES

R7637 3.9K R7636 2.2K

R7613

560

R7626

2.2K

R7625

1.2K

R7624

820

R7623 560

R7646

2.2K

R7513

R7531

220

R7616

1.2K

R7615

820

R7524 1K

R7617

2.2K

R7641

330R7645 1.2K R7644 820 R7643 560 R7642 470

R7631

330

R7632

470R7633 560R7634 820R7635 1.2K

R7621

330

R7622

470

R7612

470

R7611

330

Q7507

Q7506

RN1402

KRC102S

X7501

CST5.00MGW

Q7503

2SC2712

KTC3875

R7580

10K X 15

D7504

D7505

STANDBY

D7501

UDZ8.2B

D7502

UDZ5.1B

D7507

1SS352

D7503

1SS352

C7521

220/6.3

C7514

100/6.3

C7502

33/50

C7523 102J

C7522 101J

C7511

102J

C7513

104Z

C7515

104Z

C7516

104Z

C7517

102J

C7519

102J

C7520

102J

C7518

102J

C7508 102J

C7509

102J

C7506

104Z

C7501

104Z

C7503

104Z

C7507

104Z

C7505

473Z

C7504

473Z

C7510

102J

R7504

47k

R7514

L7503

L7502

L7501

R7512 10K

R995

NC

R996

NC

R997

NC

R998

NC

R999

10K

R7516 10K

R7519

100K

R7518

100K

R7515

10K

R7507 4.7K

R7517 1K

R7503

10K

R7520 2.7K

R7521

2.7K

R7501 220

R7502

220

R7506 4.7K

R7532

10K

R7527

10K

R7526

10K

R7530

1K

R7529

560

R7528

560

R7508

4.7K

R7509 4.7K

R7510

1K

R7511

1K

R7522 2.7K

R7523

2.7K

R7505

220K

G[11]

G[1]

G[16]

P[1]

G[2]

G[3]

G[4]

G[5]

G[6]

G[7]

G[8]

G[9]

G[10]

G[12]

G[13]

G[14]

G[15]

P[28]

P[32]

P[35]

P[2]

P[3]

P[4]

P[5]

P[6]

P[7]

P[8]

P[9]

P[10]

P[11]

P[12]

P[13]

P[14]

P[15]

P[16]

P[17]

P[18]

P[19]

P[20]

P[21]

P[22]

P[23]

P[24]

P[25]

P[26]

P[27]

P[29]

P[30]

P[33]

P[34]

P[31]

P[35]

P[34]

P[33]

P[32]

P[31]

P[30]

P[29]

P[28]

P[27]

P[26]

P[25]

P[24]

P[23]

P[22]

P[21]

P[20]

P[19]

P[18]

P[16]

P[15]

P[14]

P[13]

P[12]

P[10]

P[9]

P[8]

P[7]

P[6]

P[5]

P[4]

P[3]

P[2]

P[1]

P[11]

P[17]

G[1;16]

G[3]

G[14]

G[13]

G[12]

G[11]

G[9]

G[8]

G[7]

G[6]

G[5]

G[4]

G[16]

G[15]

G[10]

G[2]

G[1]

SYSOUT

IRF

VAJ

VBJ

STBYLED

SYSIN

SBMLDY

SBMDI

SBMDO

SBMCLK

SBMRST

K3

K1

K2

K0

K1

K2

K3

GND

KEY0

HPDET

GND

HPL

HPE

HPR

SYSIN

HPDET

SBMLDY

SBMDI

SBMDO

SBMCLK

SBMRST

-VP

+5.6S

FAC2

FAC1

HPR

HPE

HPL

GND

NAETC-8233

NASW-8232

NADIS-8231

TO NAETC-8238

TO NADG-8230

U03

MASTER VOLUME

U04

R7581 100k X 14

<Notes>

NC=No mount of parts.

NOTE

THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY

REPLACE ONLY WITH PART NUMBER SPECIFIED

VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)

ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.

ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.

ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.

ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.

ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.

EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF

ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.

THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.

EX) PRINTING SIDE

CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

IS DC VOLTAGE, AT NO INPUT SIGNAL.

R7582

NC

100K X 13

NC

U02

DISPLAY PC BOARD

FL TUBE

NC

STEREO

HEADPHONE TERMINAL

PC BOARD

OPERATION SWITCH

PC BOARD

A

1

2

3

4

5

BCDEFGH

SCHEMATIC DIAGRAMS-3

DRIVER AMPLIFIER SECTION

HT-R820THX HT-R820THX

A

1

2

3

4

5

BCDEFGH

U06

Q5012

Q5002

Q5042

Q5052

Q5011

Q5001

Q5041

Q5051

Q5010

Q5000

Q5040

Q5050

Q5013

Q5003

Q5043

Q5053

Q5014

Q5004

Q5044

Q5054

Q5015

Q5005

Q5045

Q5055

Q5032

Q5031

Q5030

Q5033

Q5034

Q5035

R5012

56K

R5002

1K

R5022

330

R5062

1.2K

R5162

150

(1/4W)

R5172

150

(1/4W)

R5032

56K

R5072

NC

R5112

1K

R5092

100K

R5052

4.7K

R5082

470

R5102

100K

R5182

10

(1/4W)

R5192

10

(1/4W)

R5042

2.2K

R5132

18K

R5142

R5011

56K

R5001

1K

R5021

330

R5061

1.2K

R5161

150

(1/4W)

R5171

150

(1/4W)

R5031

56K

R5071

NC

R5111

1K

R5091

100K

R5051

4.7K

R5081

470

R5101

100K

R5181

10

(1/4W)

R5191

10

(1/4W)

R5041

2.2K

R5131

18K

R5141

NC

R5010

56K

R5000

1K

R5020

330

R5060

1.2K

R5160

150

(1/4W)

R5170

150

(1/4W)

R5030

56K

R5070

NC

R5110

1K

R5090

100K

R5050

4.7K

R5080

470

R5100

100K

R5180

10

(1/4W)

R5190

10

(1/4W)

R5040

2.2K

R5130

18K

R5140

NC

R5013

56K

R5003

1K

R5023

330

R5063

1.2K

R5163

150

(1/4W)

R5173

150

(1/4W)

R5033

56K

R5073

NC

R5113

1K

R5093

100K

R5053

4.7K

R5083

470

R5103

100K

R5183

10

(1/4W)

R5193

10

(1/4W)

R5043

2.2K

R5133

18K

R5143

R5014

56K

R5004

1K

R5024

330

R5064

1.2K

R5164

150

(1/4W)

R5174

150

(1/4W)

R5034

56K

R5074

R5114

1K

R5094

100K

R5054

4.7K

R5084

470

R5104

100K

R5184

10

(1/4W)

R5194

10

(1/4W)

R5044

2.2K

R5134

18K

R5144

R5015

56K

R5005

1K

R5025

330

R5065

1.2K

R5165

150

(1/4W)

R5175

150

(1/4W)

R5035

56K

R5075

NC

R5115

1K

R5095

82K

[100K]

R5055

4.7K

R5085

470

R5105

100K

R5185

10

(1/4W)

R5195

10

(1/4W)

R5045

2.2K

R5135

18K

R5145

C5012

22/16

C5042

100/16

C5052

47/50

C5112

10/100

C5102

10/100

C5022

10/50

C5011

47/16

C5041

220/16

C5051

47/50

C5111

10/100

C5101

10/100

C5021

10/50

C5010

47/16

C5040

220/16

C5050

47/50

C5110

10/100

C5100

10/100

C5020

10/50

C5013

22/16

C5043

100/16

C5053

47/50

C5113

10/100

C5103

10/100

C5023

10/50

C5014

22/16

C5044

100/16

C5054

47/50

C5114

10/100

C5104

10/100

C5024

10/50

C5015

22/16

C5045

220 /16

C5055

47/50

C5115

10/100

C5105

10/100

C5025

10/50

C5002

101K

C5082

040D

C5092

101J

C5032

C5001

101K

C5081

040D

C5091

101J

C5031

C5000

101K

C5080

040D

C5090

101J

C5030

C5003

101K

C5083

040D

C5093

101J

C5033

C5004

101K

C5084

040D

C5094

101J

C5034

C5005

101K

C5085

040D

C5095

101J

C5035

P6002A

TO NAAF-8245

P6001A

TO NAAF-8245

P6000A

TO NAAF-8245

P6003A

TO NAAF-8245

P6004A

TO NAAF-8245

P6005A

TO NAAF-8245

C5072

C5071

C5070

C5073

C5074

C5075

D5002

MTZJ5.6B

D5001

MTZJ5.6B

D5000

MTZJ5.6B

D5003

MTZJ5.6B

D5004

MTZJ5.6B

D5005

MTZJ5.6B

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

P406AP407A

P306A

TO NADG-8230

P6011A

TO NAAF-8245

E

SB

E

C

E

SL

E

SR

E

R

E

L

E

L

R

C

SL

SR

SB

NAAF-8235

NF

-B1

+B1

B+

B-

NF

-B1

+B1

B+

B-

NF

-B1

+B1

B+

B-

NF

-B1

+B1

B+

B-

NF

-B1

+B1

B+

B-

NF

-B1

+B1

B+

B-

NOTE

THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY

REPLACE ONLY WITH PART NUMBER SPECIFIED

VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)

ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.

ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.

ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.

ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.

ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.

EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF

ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.

THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.

EX) PRINTING SIDE

CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

IS DC VOLTAGE, AT NO INPUT SIGNAL.

<Notes>

NC=No mount of parts.

REF. NO. DESCRIPTION

Q5000-5005,5010-5015 KTC3200-BL OR 2SC1775A-E,F OR 2SC1845-E

Q5030-35 2SA949(ONK)-Y,O

Q5040-45 2SC2229(ONK)-Y,O

Q5050-55 KTC3200-BL,GR OR 2SC1775A-E,F OR 2SC1845-E,F

Refer to the following table about the parts displayed by mark " ".

NC

DRIVER AMPLIFIER PC BOARD

SCHEMATIC DIAGRAMS-3

DRIVER AMPLIFIER SECTION

HT-R820THX HT-R820THX

A

1

2

3

4

5

BCDEFGH

U06

Q5012

Q5002

Q5042

Q5052

Q5011

Q5001

Q5041

Q5051

Q5010

Q5000

Q5040

Q5050

Q5013

Q5003

Q5043

Q5053

Q5014

Q5004

Q5044

Q5054

Q5015

Q5005

Q5045

Q5055

Q5032

Q5031

Q5030

Q5033

Q5034

Q5035

R5012

56K

R5002

1K

R5022

330

R5062

1.2K

R5162

150

(1/4W)

R5172

150

(1/4W)

R5032

56K

R5072

NC

R5112

1K

R5092

100K

R5052

4.7K

R5082

470

R5102

100K

R5182

10

(1/4W)

R5192

10

(1/4W)

R5042

2.2K

R5132

18K

R5142

R5011

56K

R5001

1K

R5021

330

R5061

1.2K

R5161

150

(1/4W)

R5171

150

(1/4W)

R5031

56K

R5071

NC

R5111

1K

R5091

100K

R5051

4.7K

R5081

470

R5101

100K

R5181

10

(1/4W)

R5191

10

(1/4W)

R5041

2.2K

R5131

18K

R5141

NC

R5010

56K

R5000

1K

R5020

330

R5060

1.2K

R5160

150

(1/4W)

R5170

150

(1/4W)

R5030

56K

R5070

NC

R5110

1K

R5090

100K

R5050

4.7K

R5080

470

R5100

100K

R5180

10

(1/4W)

R5190

10

(1/4W)

R5040

2.2K

R5130

18K

R5140

NC

R5013

56K

R5003

1K

R5023

330

R5063

1.2K

R5163

150

(1/4W)

R5173

150

(1/4W)

R5033

56K

R5073

NC

R5113

1K

R5093

100K

R5053

4.7K

R5083

470

R5103

100K

R5183

10

(1/4W)

R5193

10

(1/4W)

R5043

2.2K

R5133

18K

R5143

R5014

56K

R5004

1K

R5024

330

R5064

1.2K

R5164

150

(1/4W)

R5174

150

(1/4W)

R5034

56K

R5074

R5114

1K

R5094

100K

R5054

4.7K

R5084

470

R5104

100K

R5184

10

(1/4W)

R5194

10

(1/4W)

R5044

2.2K

R5134

18K

R5144

R5015

56K

R5005

1K

R5025

330

R5065

1.2K

R5165

150

(1/4W)

R5175

150

(1/4W)

R5035

56K

R5075

NC

R5115

1K

R5095

82K

[100K]

R5055

4.7K

R5085

470

R5105

100K

R5185

10

(1/4W)

R5195

10

(1/4W)

R5045

2.2K

R5135

18K

R5145

C5012

22/16

C5042

100/16

C5052

47/50

C5112

10/100

C5102

10/100

C5022

10/50

C5011

47/16

C5041

220/16

C5051

47/50

C5111

10/100

C5101

10/100

C5021

10/50

C5010

47/16

C5040

220/16

C5050

47/50

C5110

10/100

C5100

10/100

C5020

10/50

C5013

22/16

C5043

100/16

C5053

47/50

C5113

10/100

C5103

10/100

C5023

10/50

C5014

22/16

C5044

100/16

C5054

47/50

C5114

10/100

C5104

10/100

C5024

10/50

C5015

22/16

C5045

220 /16

C5055

47/50

C5115

10/100

C5105

10/100

C5025

10/50

C5002

101K

C5082

040D

C5092

101J

C5032

C5001

101K

C5081

040D

C5091

101J

C5031

C5000

101K

C5080

040D

C5090

101J

C5030

C5003

101K

C5083

040D

C5093

101J

C5033

C5004

101K

C5084

040D

C5094

101J

C5034

C5005

101K

C5085

040D

C5095

101J

C5035

P6002A

TO NAAF-8245

P6001A

TO NAAF-8245

P6000A

TO NAAF-8245

P6003A

TO NAAF-8245

P6004A

TO NAAF-8245

P6005A

TO NAAF-8245

C5072

C5071

C5070

C5073

C5074

C5075

D5002

MTZJ5.6B

D5001

MTZJ5.6B

D5000

MTZJ5.6B

D5003

MTZJ5.6B

D5004

MTZJ5.6B

D5005

MTZJ5.6B

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

66.5V

-66.5V

65.1V

65.7V

-61V

-65.7V

-61.6V

1.0V

-65.1V

0V

-0.1V

-0.7V

-1V

P406AP407A

P306A

TO NADG-8230

P6011A

TO NAAF-8245

E

SB

E

C

E

SL

E

SR

E

R

E

L

E

L

R

C

SL

SR

SB

NAAF-8235

NF

-B1

+B1

B+

B-

NF

-B1

+B1

B+

B-

NF

-B1

+B1

B+

B-

NF

-B1

+B1

B+

B-

NF

-B1

+B1

B+

B-

NF

-B1

+B1

B+

B-

NOTE

THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY

REPLACE ONLY WITH PART NUMBER SPECIFIED

VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)

ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.

ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.

ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.

ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.

ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.

EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF

ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.

THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.

EX) PRINTING SIDE

CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

IS DC VOLTAGE, AT NO INPUT SIGNAL.

<Notes>

NC=No mount of parts.

REF. NO. DESCRIPTION

Q5000-5005,5010-5015 KTC3200-BL OR 2SC1775A-E,F OR 2SC1845-E

Q5030-35 2SA949(ONK)-Y,O

Q5040-45 2SC2229(ONK)-Y,O

Q5050-55 KTC3200-BL,GR OR 2SC1775A-E,F OR 2SC1845-E,F

Refer to the following table about the parts displayed by mark " ".

NC

DRIVER AMPLIFIER PC BOARD

SCHEMATIC DIAGRAMS-4

SPEAKER TERMINAL & POWER SUPPLY SECTION

HT-R820THX HT-R820THX

U11

P995C

BLU

P995B

RED

P995A

BLK

RL6801

P6801

FRONT

SPEAKERS-B

L

R

P902

D:120W 1A MAX

AC OUTLET

P7503B

TO NADIS-8231

P411A

TO NADG-8230

JL9501B

JL9501A

CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST

E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER

QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST

INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.

THIS SYMBOL LOCATED NEAR THE FUSE INDICATES

THAT THE FUSE USED IS SLOW OPERATING TYPE

FOR CONTINUED PROTECTION AGAINST FIRE

HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE

RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL

ATTENTION

VA

AFIN D'ASSURER UNE PROTECTION

PERMANENTE CONTRE LES RISQUES

D'INCENDIE, REMPLACER UNIQUEMENT

PAR UN FUSIBLE DE MEME TYPE

ET CALIBRATION COMME INDIQUE.

VA

FOR CONTINUED PROTECTION

AGAINST FIRE HAZARD, REPLACE

ONLY WITH FUSE OF SAME TYPE

AND RATING INDICATED.

CAUTION

NOTE

THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY

REPLACE ONLY WITH PART NUMBER SPECIFIED

VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)

ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.

ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.

ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.

ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.

ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.

EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF

ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.

THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.

EX) PRINTING SIDE

CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

IS DC VOLTAGE, AT NO INPUT SIGNAL.

P6907

NAAF-8245

JL6805B

TO NAAF-8245

JL6952B

TO NAAF-8245

T901

THERMAL FUSE

P901

T902

P901A

AC-H

AC-G

Q921

2SC2458-GR

2SC1740S-R,S

Q6931

NJM78M56FA

TA78057S OR

G

I

O

P917

P918

19

15

16

17

18

P911

P912A

P911A

P912

14

13

12

11

10

9

8

C6933

10/16

C6931

1000/25

C922

100/35

F9501

F901

F903

5A125V

R922

R926

470

(1W)

R9521

3.3

(1/2W)

R6935

120

(2W)

R921

8.2

(1W)

R924 82

(1/2W)

R9503

0.22

(1/2W)

R9502

0.47

(1/2W)

R9501

1

(1/2W)

R6800

NC

R6810

NC

R6801

NC

R6811 NC

R6802

NC

R6812 NC

R6803

NC

R6813 NC

R6804

NC

R6814

NC

R6805

NC

R6815 NC

C9513

223Z

J

D6933

D6932

D6932,6933:

GP104003E OR

RL1N4003

D925

D922

D921

D924

D923

D921-D924

GP104003E OR

RL1N4003

D6804

D6801

D6800

C6842

C6845

C6852

C6855

C902

472M

/250VAC

C6932

103Z

C901

103M

/275VAC

C921

223Z

C923

223Z

C6804 103J

C6801

103Z

C6800

103J

C6843

C6844

C6854

C6853

C6840

C6841

C6856

C6857

C6850

C6851

C6846

C6847

RL6804

RL6803

RL6800

RL901

P931A

TO NNAF-8245

L6800 NC

L6801

NC

L6802

NC

L6803

NC

L6804

NC

L6805

NC

R923

1K

5.6V

17.8V

0.1V

P6802

CENTER

SPEAKER

L

R

P6931A

TO NAAF-8245

P410A

TO NADG-8230

P6800

FRONT SPEAKERS-A

L

R

JL6803B

TO NAAF-8245

JL6804B

TO NAAF-8245

LSP

RSP

CSP

LSSP

RSSP

SBSP

FLAC1

FLAC2

MPUGND

HPL

AGND

HPR

+5.6V

+24V

S3

S3GND

S3

S2

BRLD

S2

FRLD

S2

CSRLD

+5.6V

+24V

PROTHERM

LSPE

RSPE

POWER

CSPE

SPF

LSSPE

SPCS

RSSPE

SE1H

SBSPE

SPB

VOLH

PRO

MPUGND

+13VS

PROTHERM

MPUGND

S3GND

+13VS

POWER

PRO

SPF

SPCS

SPB

SE1H

VOLH

+24V

AGND

HPR

HPL

POWER

3

7

NPT-1492D

8A125V

NAPS-8248

NAPS-8247

NAPS-8249

NAETC-8239

NAETC-8238

NAETC-8240

U19

U10

U20

U09

NC

U18

<Notes>

NC=No mount of parts.

NPT-1494D

NC

SURROUND

BACK

SPEAKER

NC

SPEAKER TERMINAL PC BOARD

POWER SUPPLY PC BOARD

TERMINAL

PC BOARD

TERMINAL PC BOARD

TERMINAL

PC BOARD

REGULATOR PC BOARD

SURROUND

SPEAKERS

TO NAAF-8245

A

1

2

3

4

5

BCDEFGH

SCHEMATIC DIAGRAMS-4

SPEAKER TERMINAL & POWER SUPPLY SECTION

HT-R820THX HT-R820THX

U11

P995C

BLU

P995B

RED

P995A

BLK

RL6801

P6801

FRONT

SPEAKERS-B

L

R

P902

D:120W 1A MAX

AC OUTLET

P7503B

TO NADIS-8231

P411A

TO NADG-8230

JL9501B

JL9501A

CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST

E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER

QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST

INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.

THIS SYMBOL LOCATED NEAR THE FUSE INDICATES

THAT THE FUSE USED IS SLOW OPERATING TYPE

FOR CONTINUED PROTECTION AGAINST FIRE

HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE

RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL

ATTENTION

VA

AFIN D'ASSURER UNE PROTECTION

PERMANENTE CONTRE LES RISQUES

D'INCENDIE, REMPLACER UNIQUEMENT

PAR UN FUSIBLE DE MEME TYPE

ET CALIBRATION COMME INDIQUE.

VA

FOR CONTINUED PROTECTION

AGAINST FIRE HAZARD, REPLACE

ONLY WITH FUSE OF SAME TYPE

AND RATING INDICATED.

CAUTION

NOTE

THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY

REPLACE ONLY WITH PART NUMBER SPECIFIED

VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)

ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.

ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.

ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.

ELECTROLYTIC CAPACITORS ( ) ARE IN u F/WV.

ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.

EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF

ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.

THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.

EX) PRINTING SIDE

CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

IS DC VOLTAGE, AT NO INPUT SIGNAL.

P6907

NAAF-8245

JL6805B

TO NAAF-8245

JL6952B

TO NAAF-8245

T901

THERMAL FUSE

P901

T902

P901A

AC-H

AC-G

Q921

2SC2458-GR

2SC1740S-R,S

Q6931

NJM78M56FA

TA78057S OR

G

I

O

P917

P918

19

15

16

17

18

P911

P912A

P911A

P912

14

13

12

11

10

9

8

C6933

10/16

C6931

1000/25

C922

100/35

F9501

F901

F903

5A125V

R922

R926

470

(1W)

R9521

3.3

(1/2W)

R6935

120

(2W)

R921

8.2

(1W)

R924 82

(1/2W)

R9503

0.22

(1/2W)

R9502

0.47

(1/2W)

R9501

1

(1/2W)

R6800

NC

R6810

NC

R6801

NC

R6811 NC

R6802

NC

R6812 NC

R6803

NC

R6813 NC

R6804

NC

R6814

NC

R6805

NC

R6815 NC

C9513

223Z

J

D6933

D6932

D6932,6933:

GP104003E OR

RL1N4003

D925

D922

D921

D924

D923

D921-D924

GP104003E OR

RL1N4003

D6804

D6801

D6800

C6842

C6845

C6852

C6855

C902

472M

/250VAC

C6932

103Z

C901

103M

/275VAC

C921

223Z

C923

223Z

C6804 103J

C6801

103Z

C6800

103J

C6843

C6844

C6854

C6853

C6840

C6841

C6856

C6857

C6850

C6851

C6846

C6847

RL6804

RL6803

RL6800

RL901

P931A

TO NNAF-8245

L6800 NC

L6801

NC

L6802

NC

L6803

NC

L6804

NC

L6805

NC

R923

1K

5.6V

17.8V

0.1V

P6802

CENTER

SPEAKER

L

R

P6931A

TO NAAF-8245

P410A

TO NADG-8230

P6800

FRONT SPEAKERS-A

L

R

JL6803B

TO NAAF-8245

JL6804B

TO NAAF-8245

LSP

RSP

CSP

LSSP

RSSP

SBSP

FLAC1

FLAC2

MPUGND

HPL

AGND

HPR

+5.6V

+24V

S3

S3GND

S3

S2

BRLD

S2

FRLD

S2

CSRLD

+5.6V

+24V

PROTHERM

LSPE

RSPE

POWER

CSPE

SPF

LSSPE

SPCS

RSSPE

SE1H

SBSPE

SPB

VOLH

PRO

MPUGND

+13VS

PROTHERM

MPUGND

S3GND

+13VS

POWER

PRO

SPF

SPCS

SPB

SE1H

VOLH

+24V

AGND

HPR

HPL

POWER

3

7

NPT-1492D

8A125V

NAPS-8248

NAPS-8247

NAPS-8249

NAETC-8239

NAETC-8238

NAETC-8240

U19

U10

U20

U09

NC

U18

<Notes>

NC=No mount of parts.

NPT-1494D

NC

SURROUND

BACK

SPEAKER

NC

SPEAKER TERMINAL PC BOARD

POWER SUPPLY PC BOARD

TERMINAL

PC BOARD

TERMINAL PC BOARD

TERMINAL

PC BOARD

REGULATOR PC BOARD

SURROUND

SPEAKERS

TO NAAF-8245

A

1

2

3

4

5

BCDEFGH

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ONKYO HT-R820THX User manual

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