Sony MDX-C5970 User manual

MICROFILM

SERVICE MANUAL

German Model

MDX-C5960R

US Model

Canadian Model

E Model

MDX-C5970

AEP Model

UK Model

MDX-C5970R

SPECIFICATIONS

MDX-C5960R/C5970/C5970R

Photo: MDX-C5960R

Model Name Using Similar Mechanism MDX-C7900/C7900R

Base Mechanism Type MG-164N-138

Optical Pick-Up Name KMS-241B/J1NP

FM/AM (MW/LW) MINIDISC PLAYER

– Continued on next page –

– 2 –

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C dur-

ing repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

NOTES ON HANDLING THE OPTICAL PICK-UP

BLOCK OR BASE UNIT

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED

LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS

AND IN THE PARTS LIST ARE CRITICAL TO SAFE

OPERATION. REPLACE THESE COMPONENTS WITH

SONY PARTS WHOSE PART NUMBERS APPEAR AS

SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-

LISHED BY SONY.

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous ra-

diation exposure.

The laser diode in the optical pick-up block may suffer electro-

static break-down because of the potential difference generated

by the charged electrostatic load, etc. on clothing and the human

body.

During repair, pay attention to electrostatic break-down and also

use the procedure in the printed matter which is included in the

repair parts.

The flexible board is easily damaged and should be handled with

care.

NOTES ON LASER DIODE EMISSION CHECK

Never look into the laser diode emission from right avove when

checking it for adustment. It is feared that you will lose your sight.

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK

(KMS-241B/J1NP).

The laser diode in the optical pick-up block may suffer electro-

static break-down easily. When handling it, perform soldering

bridge to the laser-tap on the flexible board. Also perform m easures

against electrostatic break-down sufficiently before the operation.

The flexible board is easily damaged and should be handled with

care.

laser-tap

OPTICAL PICK-UP FLEXIBLE BOARD

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE !

SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE

DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ

DE FONCTIONNEMENT. NE REMPLACER CES COM-

POSANTS QUE PAR DES PIÈCES SONY DONT LES

NUMÉROS SONT DONNÉS DANS CE MANUEL OU

DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

– 3 –

1. GENERAL

Location of controls ........................................................ 4

Resetting the unit ............................................................ 5

Detaching the front panel................................................ 5

Labelling the rotary commander..................................... 5

Using the rotary commander .......................................... 5

Adjusting the sound characterisitics............................... 5

Attenuating the sound ..................................................... 5

Changing the sound and display settings ....................... 5

Boosting the bass sound.................................................. 5

Installation....................................................................... 6

Connections..................................................................... 7

2. DISASSEMBLY ......................................................... 10

3. ELECTRICAL ADJUSTMENTS......................... 16

Test Mode ........................................................................ 16

MD Section ..................................................................... 16

Tuner Section .................................................................. 16

4. DIAGRAMS

4-1. Block Diagram – SERVO Section – ............................... 19

4-2. Block Diagram – TUNER Section – .............................. 21

4-3. Block Diagram – MAIN Section – ................................. 23

4-4. Block Diagram

– DISPLAY/KEY CONTROL Section –........................ 25

4-5. Block Diagram – BUS CONTROL/

POWER SUPPLY Section – ........................................... 27

4-6. Notes for Printed Wiring Boards and

Schematic Diagrams ....................................................... 29

4-7. Printed Wiring Board – SERVO Board – ....................... 31

4-8. Schematic Diagram – SERVO Board (1/3) – ................. 33

4-9. Schematic Diagram – SERVO Board (2/3) – ................. 35

4-10. Schematic Diagram – SERVO Board (3/3) – ................. 37

4-11. Printed Wiring Board

– MAIN Board (Component Side) – .............................. 39

4-12. Printed Wiring Board

– MAIN Board (Conductor Side) – ................................ 41

4-13. Schematic Diagram – MAIN Board (1/4) – ................... 43

4-14. Schematic Diagram – MAIN Board (2/4) – ................... 45

4-15. Schematic Diagram – MAIN Board (3/4) – ................... 47

4-16. Schematic Diagram – MAIN Board (4/4) – ................... 49

4-17. Printed Wiring Board – KEY Board –............................ 51

4-18. Schematic Diagram – KEY Board – .............................. 53

4-19. IC Pin Function Description ........................................... 62

5. EXPLODED VIEWS................................................ 72

6. ELECTRICAL PARTS LIST ............................... 76

TABLE OF CONTENTS

– 4 –

SECTION 1

GENERAL

This section is extracted from

instruction manual.

– 5 –

– 6 –

– 7 –

– 8 –

– 9 –

– 10 –

SECTION 2

DISASSEMBLY

SUB PANEL

Note: Follow the disassembly procedure in the numerical order given.

1

five screws

(PTT2.6

×

6)

1

screw

(PTT2.6

×

6)

2

sub panel

MECHANISM DECK (MG-164N-138)

1

two screws

(PTT2.6

×

4)

3

mechanism deck

(MG-164N-138)

2

connector

(CN200)

– 11 –

MAIN BOARD, HEAT SINK

SERVO BOARD

4

insulating sheet

3

main board

2

three screws

(PTT2.6

×

6) (ground point)

1

two screws

(PTT2.6

×

10)

6

heat sink

5

eight screws

(PTT2.6

×

10)

2

two screws

(BVTT2

×

4)

1

sensor flexible board

(CN102)

2

two screws

(BVTT2

×

4)

1

flexible boar

d

(CN103)

3

servo board

– 12 –

1

tension spring (FL2)

1

tension spring (FL2

)

2

two tension springs (FLOAT F)

3

Pushing an arrow

A

part, raise the float block

up ward at the front to release a lock.

A

float block

lever (lock R)

lever (lock L)

MD COVER ASS’Y

FLOAT BLOCK

1

four screws

(B2

×

3)

3

MD cover ass’y

2

Pushing the Cassette Holder toward the direction

A

with a

screwdriver, etc., disengage the Shaft (MD Cover Guide) from

the slot in the MD Cover Assy.

Note:Take care not to scratch the optiocal Pick-up when pushing

the Cassette Holder with a screwdriver. etc.

shaft (MD cover guide)

cassette holder

A

– 13 –

LO MOTOR ASS’Y (LOADING) (M903)

LEVER (LE) ASS’Y

4

Remove the bracket (LO)

in the direction of the arrow

A

.

1

Remove solders of motor (M903)

5

LO motor ass’y (loading)

(M903)

2

tension spring (rack)

3

claw

A

2

stopper washer

2

lever (LE) ass’y

3

roller (GLE)

1

– 14 –

HOLDER ASS’Y

CHUCKING ARM ASS’Y

1

Remove the chucking arm ass’y

in the direction of the arrow.

holder ass’y

2

type-E stopring 1.5

2

type-E stopring 1.5

3

lever (lock L)

2

type-E stopring 1.5

2

type-E stopring 1.5

4

Remove the holder ass’y in the

direction of the arrow.

1

spring (CHKG)

1

spring (CHKG)

3

lever (lock R)

– 15 –

OPTICAL PICK-UP (KMS-241B/J1NP)

SL MOTOR ASS’Y (SLED) (M902), SP MOTOR ASS’Y (SPINDLE) (M901)

6

bearing (SL)

5

feed screw ass’

y

3

screw

(K2

×

3)

2

shaft (SL2)

1

two screws

(K2

×

3)

7

optical pick-up

(KMS-241B/J1NP)

4

screw

(B2

×

3)

4

screw

(P1.7

×

1.8)

5

bracket (SL)

9

two screws

(P1.7

×

1.8)

!º

retainer (SP)

!¡

SP motor ass’y

(spindle) (M901)

7

screw

(B2

×

3)

2

two screws

(2

×

8)

3

sensor board

1

Remove solders of motors

(M901, M902)

8

base (SL)

6

SL motor ass’y

(sled) (M902)

– 16 –

SECTION 3

ELECTRICAL ADJUSTMENTS

TEST MODE

This set have the test mode function. In the test mode, FM Auto

Scan/Stop Level and AM (MW) Auto Scan/Stop Level adjustments

can be performed easier than it in ordinary procedure.

1. Turn ON the regulated power supply. (The clock is displayed)

Note: Press the [OFF] button, if the clock is not displayed.

2. Push the preset [4] button.

3. Push the preset [5] button.

4. Press the preset [1] button for more than two seconds.

5. Then the display indicates all lights, the test mode is set.

1. Push the [OFF] button.

MD SECTION

MD section adjustments are done automatically in this set.

TUNER SECTION

Note:

Adjust the tuner section in the sequence shown below.

1. FM Auto Scan/Stop Level Adjustment.

2. FM Stereo Separation Adjustmnet.

3. AM (MW) Auto Scan/Stop Level Adjustment.

4. RDS S-Meter Adjustment. (MDX-C5960R/5970R)

FM Auto Scan/Stop Level Adjustment

Setting:

[SOURCE] button: FM

FREQUENCY SELECT switch: FM 200 k (E model)

Procedure:

1. Set to the test mode.

2. Push the [SOURCE] button and set to FM.

Display

0 dB=1 µV

See the adjustment location from on page 18 for the ad-

justment.

Cautions during repair

When the tuner unit is defective, replace it by a new one be-

cause its internal block is difficult to repair.

3. Adjust with the volume RV2 on TU1 so that the “FM” indica-

tion turns to “FM0” indication on the display window.

But, in case of already indicated “FM0”, turn the RV2 so that

put out light “0” indication and adjustment.

Display

*1: MDX-C5960R/C5970R indicate “98.00”.

Adjustment Location: See page 18.

FM Stereo Separation Adjustment

Setting:

[SOURCE] button: FM

FREQUENCY SELECT switch: FM 200 k (E model)

Procedure:

L-CH Stereo separation: A-B

R-CH Stereo separation: C-D

The separations of both channels should be equal.

Specification: Separation more than 30 dB

Adjustment Location: See page 18.

FM RF signal

generator

Carrier frequency: 97.9 MHz (MDX-C5970)

98.0 MHz (MDX-C5960R/C5970R)

Output level : 22 dB (12.6

µ

V)

Mode : mono

Modulation : 1 kHz, 22.5 kHz deviation (30%)

0.01

µ

F

set

antenna jack (J1)

FM RF signal

generator

0.01

µ

F

set

antenna jack (J1)

+

–

LINE OUT jack (CNP300)

level meter

10 k

Ω

MDX-C5970

MDX-C5960R/

C5970R

Carrier frequency 97.9 MHz 98.0 MHz

Output level 60 dB (1 mV) 70 dB (3.2 mV)

Mode stereo stereo

main

1 kHz, 33.75 kHz 1 kHz, 16.25 kHz

deviation (45%) deviation (21.7%)

Modulation sub

1 kHz, 33.75 kHz 1 kHz, 16.25 kHz

deviation (45%) deviation (21.7%)

19 kHz 7.5 kHz 7.5 kHz

pilot deviation (10%) deviation (10%)

FM Stereo

Level meter Level meter

signal generator

connection reading (dB)

output channel

L-CH L-CH A

B

R-CH L-CH Adjust RV4 on TU1

for minimum reading.

R-CH R-CH C

D

L-CH R-CH Adjust RV4 on TU1

for minimum reading.

SHUF

*1

SHUF

*1

– 17 – – 18 –

RDS S-Meter Adjustment (MDX-C5960R/C5970R)

Setting:

[SOURCE] button: FM

Procedure:

1. Set to the test mode. (See page 16)

2. Push the [SOURCE] button and set to FM.

Display

3. Push the preset [10] button.

4. Adjust RV1 on MAIN board so that the display indication is

“11.2”.

Display

Specification: Display indication : 10.8 to 11.6

Adjustment Location: See page 18.

AM (MW) Auto Scan/Stop Level Adjustment

Setting:

[MODE] button (MDX-C5970): AM

[MODE] button (MDX-C5960R/C5970R): MW

FREQUENCY SELECT switch: AM 10 k (E model)

Procedure:

1. Set to the test mode. (See page 16)

2. Push the [SOURCE] button and set to FM.

3. Push the [MODE] button and set to AM (MDX-C5970) or MW

(MDX-C5960R/C5970R).

Display

4. Adjust with the volume RV1 on TU1 so that the “AM” or “MW”

indication turns to “AM0” or “MW0” indication on the dis-

play window.

But, in case of already indicated “AM0” or “MW0”, turn the

RV1 so that put out light “0” indication and adjustment.

Display

*2: MDX-C5960R/C5970R indicate “MW”.

*3: MDX-C5960R/C5970R indicate “999”.

*4: Only MDX-C5960R/C5970R indicate.

Adjustment Location: See page 18.

AM RF signal

generator

Carrier frequency: 1000 kHz (MDX-C5970)

999 kHz (MDX-C5960R/5970R)

30% amplitude

modulation by

1 kHz signal

Output level : 33 dB (44.7

µ

V)

set

AM dummy antenna

(50

Ω

)

30

Ω

15 pF

65 pF

antenna jack (J1)

FM RF signal

generator

Carrier frequency: 98.0 MHz

Output level : 35 dB (56.2

µ

V)

Mode : mono

Modulation : no modulation

0.01

µ

F

set

antenna jack (J1)

Adjustment Location:

– SET UPPER VIEW –

SHUF

TP

*3

*2

*4

SHUF

TP

*3

*2

*4

SHUF

RV1 RDS S-Meter Adjustment

(MDX-C5960R/C5970R)

TU1

RV1 AM (MW) Auto Scan/Stop Level Adjustmen

t

RV2 FM Auto Scan/Stop Level Adjustment

RV4 FM Sereo Separation Adjustment

MDX-C5960R/C5970/C5970R

– 19 – – 20 –

SECTION 4

DIAGRAMS

4-1. BLOCK DIAGRAM – SERVO Section –

F

C B

D A

E

I J

J

I

B

A

C

D

E

F

DETECTOR

1

2

J

I

4

5

6

7

A

B

C

D

8

9

E

F

LDPD

LASER DIODE

ILCC

PD

OPTICAL PICK-UP

(KMS-241B/J1NP)

AUTOMATIC

POWER

CONTROL

Q302

11

10

APC

PD

LD/PD

AMP

12

APCREF

I-V

AMP

I-V

AMP

AT

AMP

B.P.F.

29 30

WBL

ADFM

ADIN

32

ADFG

ABCD

AMP

FOCUS

ERROR AMP

TRACKING

ERROR AMP

35

34

26

28

ABCD

FE

TE

SE

V-I

CONVERTER

20

F0CNT

WBL

3T

EQ

+3.3V

SERIAL/

PARALLEL

CONVERTER,

DECODER

COMMAND

1716 18

SWDT

SCLK

XLAT

RF AMP

B.P.F.

46

RFO

40

RF AGC

& EQ

AGCI

EQ

38

RF

RF AMP,

FOCUS/TRACKING ERROR AMP

IC302

TEMP

48 47

MORFO

MORFI

3T

PEAK &

BOTTOM

WBL

33

AUX

73 62

37

PEAK

36

BOTM

FOCUS/TRACKING COIL DRIVE,

SPINDLE/SLED MOTOR DRIVE

IC303

6

8

OUT4F

OUT4R

M

M901

(SPINDLE)

27

25

OUT2F

OUT2R

M

M902

(SLED)

21

23

OUT1F

OUT1R

12

10

OUT3F

OUT3R

FCS+

FCS–

TRK+

TRK–

2-AXIS

DEVICE

(TRACKING)

(FOCUS)

3

4

IN4R

IN4F

29

30

IN2F

IN2R

19

18

IN1F

IN1R

14

15

IN3F

IN3R

SPFD

SPRD

IC306

92

91

88

89

86

85

83

APCREF

SFDR

SRDR

FFDR

FRDR

TFDR

TRDR

16PSB

PWM GENERATOR

AUTOMATIC

POWER

CONTROL

DIGITAL

SERVO

SIGNAL

PROCESS

7465647566 63

ANALOG MUX

A/D CONVERTER

AUTO

SEQUENCER

13

FROM CPU

INTERFACE

DIGITAL SERVO

SIGNAL PROCESSOR

IC301 (2/2)

RECP

PEAK HOLD

Q301

+3.3V

ABCD

AUX1

AUX2

ABCD

FE

TE

SE

PEAK

BOTM

81

80

82

XLRF

CKRF

DTRF

EFM/ACIRC

ENCODER/DECODER

SHOCK PROOF

MEMORY CONTROLLER

ATRAC

ENCODER/DECODER

PLL

FILTER

59

58

61

60

FILI

PCO

CLTV

FILO

100

EFMO

23

ADDT

IC301 (1/2)

15

TX

COMPA-

RATOR

51

52

55

ASYO

ASYI

RFI

ADIP

DEMODULATOR/

DECODER

78

ADFG

SPINDLE

SERVO

79

F0CNT

94 93

SPFD

SPRD

SUBCODE

PROCESSOR

24

SAMPLING

RATE

CONVERTER

DIGITAL

AUDIO

INTERFACE

22

21

DIN

DOUT

DIGITAL SIGNAL PROCESSOR,

EFM/ACIRC ENCODER/DECODER,

SHOCK PROOF MEMORY CONTROLLER,

ATRAC ENCODER/DECODER, 2M BIT D-RAM

IC301 (1/2)

DADT

INTERNAL BUS

D-RAM

CLOCK

GENERATOR

2526 27

512FS OSC

IC304

XBCK

LRCK

FS256

BCK

LRCK

FS256

X301

22.5792MHz

16

OSCI

17

OSCO

CPU

INTERFACE

MONITOR

CONTROL

10

XRST

12

DQSY

11

SQSY

14

XINT

9 8 5 6 7

SENS

SRDT

SWDT

SCLK

XLAT

LEVEL SHIFT

IC502

51331

61242

LEVEL SHIFT

IC503

1 2 3 4

MNT0

MNT1

MNT2

MNT3

13

1

3

5

12

2

4

6

FOK

SHOCK

XBUSY

SLOCK

SWDT

SCLK

XLAT

59 62 55 54 52 45 51 64 26 27 28 29

MNT0

MNT1

MNT2

MNT3

67

A-MUTE

21

LOCK

39

TEMP

MD-RST

SQSY

CC-XINT

SENS

MD-SI

MD-SO

MD-CKO

MD-LAT

7 6

EJECT

LOAD

5 4

05

1 7

M

RIN FIN

OUT1 OUT2

LOADING

MOTOR DRIVE

IC305

M903

(LOADING)

63

C-SW

LOADING START/

EJECT END

E-SW

LIMIT-IN

(LIMIT)

LOADING

END

ON:When the disc loading start

and the disc eject completion.

ON:When completion of

the disc loading.

ON:When the optical pick-up is

inner position.

31

32

EXTAL

XTAL

X501

10MHz

TH501

66

DEEMP

47, 46, 48, 49

1, 2, 24, 25

D0 – D3

32 – 29, 34 – 38, 43

9 – 12, 14 – 18, 5

A0 – A9

D0 – D3A00 – A09

41 22

45 3

44 4

42 23

XOE

XWE

XRAS

XCAS

OE

WE

RAS

CAS

D-RAM

IC307

(Page 23)

A

DADT, BCK, LRCK, FS256

(Page 23)

C

LOCK

MD-ATT

(Page 23)

D

(Page 23)

B

EMPHASIS

MD MECHANISM CONTROLLER

IC501 (1/2)

• SIGNAL PATH

: MD PLAY

11 56

RESET, EMPHASIS

RESET

MDX-C5960R/C5970/C5970R

– 21 –

– 22 –

4-2. BLOCK DIAGRAM – TUNER Section –

1

4

2

FM-ANT

AM-ANT

6

VCO

21

FM/AM-IF

20

SD

5

5 283

24

10

16

9

13 12

69

100

15

VT

13

AM OSC

DATA

CLOCK

SSTOP

SDA

OSCOUT

OSCIN

SCL

SSTOP

BAND (9K-10K)

53

S-METER (VSM)

SD-IN

83

ST-MONO

62

TU-ATT

LP AM

2

LP HC

1

LP FM

LP OUT

FM IN

25

AM IN

IF FM

14

IF AM

51

QUALITY

35

NS-MASK

14

VDDA

7

VDDD

81

19

S-METER

18

16

12

FM-LCH

FM-RCH

AM-DET

23

FM-DET

FILTER

AM OSC

BUFFER

Q4

X1

10.25MHz

FM/AM PLL

IC100

05

• SIGNAL PATH

: FM

: AM (MW/LW)

MUTING

Q101

BUFFER

Q50

BAND-PASS

FILTER

IC101

R-CH

FM/AM TUNER UNIT

TU1

MASTER CONTROLLER

IC700 (1/4)

LO/DX

11

SEEK

22

ST/MONO

SEEK

FM/AM SIGNAL

METER BUFFER

Q1

B+ SWITCH

Q51

J1

(FM/AM ANTENNA)

8

FM +B

FM B+

10

AM +B

AM B+

TUNER B+

BACKUP +5V

9

+B

82

52

MPDH (MTP)

67

DAVN

RDS DECODER

IC102

INTERFACE

REGISTER

IIC BUS

SLAVE

TRANSCEIVER

OSCILLATOR

& CLOCK

X2

4.332MHz

4

8

5

OSCI

OSCO

10

9

SDA

SCL

DAVN

57 kHz

BAND-PASS

FILTER

CLOCKED

COMPARATOR

RDS/RDBS

DEMODULATOR

& DECODER

SIGNAL

QUALITY

DECODER

16

18

19

MPX

CIN

4

5

SC

OUT

MULTI

PATH

DETECTOR

20

2

LVIN

MPTH

Q5

NOISE DET

DISCHARGE

SWITCH

FM RDS

S-METER

RV1

(C5970: E model)

(C5960R/C5970R)

(C5970)

(C5960R/C5970R)

DATA

CLOCK

DATA, CLOCK

(Page 23)

G

FM

(Page 23)

E

AM

(Page 23)

F

S701

MW 10K/FM 200K

MW 9K/FM 50K

FREQUENCY SELECT

SEEKOUT

MUTING

CONTROL SWITCH

Q103

D5

MDX-C5960R/C5970/C5970R

– 23 – – 24 –

4-3. BLOCK DIAGRAM – MAIN Section –

LOCK IN

61

AF ATT

71

SCL

70

SDA

55AMP ATT

80

58

TEL-ATT

32

60

AU ATT

05

• SIGNAL PATH

: MD PLAY

: FM

: AM (MW/LW)

: BUS AUDIO IN

STB

I

(Page 28)

AMP ON

H

(Page 27)

MASTER CONTROLLER

IC700 (2/4)

NOISE

SHAPER

INPUT

INTERFACE

D/A

CONVERTER

MODE

CONTROL

CLK

CONTROL

DIGITAL FILTER,

D/A CONVERTER

IC101

12

9

VOUTL

VOUTR

R-CH

BATTERY OFF

MUTE DRIVER

Q704

MUTING

CONTROL SWITCH

Q702 (2/2)

MUTING

CONTROL SWITCH

Q703

56

AMP ON

MUTE

J

(Page 27)

MD-ATT

D

(Page 20)

6

5

4

1

15

17 16

DATA

BCK

LRCK

XTI

RSTB

DM1

DM0

BCK

DADT

LRCK

FS256

A

(Page 20)

DADT,

BCK,

LRCK,

FS256

B

(Page 20)

E

(Page 22)

F

(Page 22)

EMPHASIS

DIGITAL

FILTER

RESET,

EMPHASIS

FM

AM

G

(Page 22)

DATA, CLOCK

C

(Page 20)

LOCK

RESET

COM +8V

BATT B+

D703

Q702 (1/2)

D700

D511

D701

CNP300 (2/2)

FRONT

LINE OUT

AUDIO OUT

(LINE OUT)

(L)

(R)

REAR

LINE OUT

(L)

(R)

MUTING

Q301

MUTING

Q401

MUTING

Q300

MUTING

Q400

FRONT L (+)

1

12

14

5

3

FL+

FL–

21

23

FR+

FR–

FL-IN

FR-IN

11

9

7

RL+

RL–

RL-IN

15

22

17

19

RR+

RR–

RR-IN

4

LEVEL SHIFT

Q500

CNP500 (1/2)

(POWER CONNECTOR)

POWER AMP

IC500

FRONT L (–)

9

FRONT R (+)

4

FRONT R (–)

12

REAR L (+)

2

REAR L (–)

10

REAR R (+)

3

REAR R (–)

11

TEST MODE

15

13

MUTING

Q302

MUTING

Q403

MUTING

Q303

MUTING

Q402

PDL

SE2L

SE1L

SE3L

SDA

SCL

DATA

CLOCK

MUTE

12

11

1

28

VOLUME

CONTROL

CIRCUIT

LOUDNESS

CONTROL

CIRCUIT

DIGITAL CONTROL

CIRCUIT

IIC BUS

LOUDNESS

CONTROL

CIRCUIT

INPUT

SELECTOR

(L)

(R)

R-CH

INPUT SELECT,

ELECTRICAL VOLUME

IC300

CNP300 (1/2)

BUS

AUDIO IN

TESTIN

SOFT

MUTE

TONE

CONTROL

CIRCUIT

FADER

20

2625 24

OUT RL

22

OUT FL

R-CH

(C5970/C5970R)

(C5960R)

(C5970/C5970R)

MUTE

ST-BY

TEL-ATT

(C5970/C5970R)

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