Sanyo DCS-AVD8501 User manual

Brand: Sanyo

Model: DCS-AVD8501

Category: AV receivers

Type: User manual

This manual is also suitable for

AVD-8501

FILE NO.

Service Manual

CONTENTS

DVD Home Theater System

AVD-8501

PRODUCT CODE No.

129 611 00 (US)

129 611 02 (CA)

129 611 03 (UK)

129 611 04 (XE)

129 611 06 (SS)

129 611 07 (AU)

REFERENCE No.

SM5810231

Specifications .............................................................................. 1

Laser beam safety precaution..................................................... 2

DVD mechanism replacement .................................................... 2

Mechanism operation.................................................................. 4

DVD P.W.Board operation .......................................................... 5

Memo .......................................................................................... 7

DVD P.W.Board operation

(Schematic diagram for signal check)......................................... 8

DVD P.W.Board operation

(Wiring diagram for signal check) ............................................... 18

DVD P.W.Board operation(Signal).............................................. 20

DVD start-up program flow chart ................................................ 28

MPEG and FRONT END

P.W.Board operation (Block diagram) ...................................... 30

MPEG P.W.Board operation

(schematic diagram for waveform check) ................................... 32

MPEG and FRONT END

P.W.Board check waveform...................................................... 34

How to load software for MPEG P.W.Board ............................... 38

Trouble shooting ......................................................................... 39

Voltage of IC & Transistor ........................................................... 42

Tuner Adjustment........................................................................ 45

Exploded view (Cabinet & Chassis) ........................................... 46

Parts list ...................................................................................... 47

Exploded view & Parts list (DVD mechanism) ........................... 57

IC Block diagram & description ................................................... 58

Voltage of IC & Transistor ........................................................... 78

Wiring Diagram (MPEG A SIDE) ............................................... 80

Wiring Diagram (MPEG B SIDE) ............................................... 81

Schematic Diagram (MPEG)...................................................... 84

Schematic Diagram (MAIN+STANDBY for US & CA)................ 86

Wiring Diagram (MAIN for US & CA) ......................................... 88

Wiring Diagram (DVD POWER, HEADPHONE JACK

+ STANDBY for US & CA) .......................................................... 90

Wiring Diagram (DVD POWER, HEADPHONE JACK

+ STANDBY for UK & XE) .......................................................... 92

Schematic Diagram (MAIN+STANDBY for UK& XE)................. 94

Wiring Diagram (MAIN for UK & XE) ......................................... 96

Schematic Diagram (MAIN+STANDBY for SS) ......................... 98

Wiring Diagram (MAIN for SS) ................................................... 100

Schematic Diagram (MAIN+STANDBY for AU) ......................... 102

Wiring Diagram (MAIN for AU)................................................... 104

Wiring Diagram (DVD POWER, HEADPHONE JACK,

STANDBY+ AC VOLTAGE SWITCH for SS & AU) .................... 106

Schematic Diagram (FRONT + LED SW for US & CA) ............. 108

Schematic Diagram (TUNER for US & CA) ............................... 110

Wiring Diagram (FRONT, TUNER + LED SWITCH

FOR US & CA) ........................................................................... 112

Schematic Diagram (FRONT + LED SW for UK & XE).............. 114

Wiring Diagram (FRONT, TUNER + LED SWITCH

FOR UK & XE) ........................................................................... 116

Schematic Diagram (TUNER for UK & XE) ............................... 118

Schematic Diagram (FRONT+ LED SW for SS & AU)............... 120

Wiring Diagram (FRONT, TUNER + LED SWITCH

FOR SS & AU) ........................................................................... 122

Schematic Diagram (TUNER for SS & AU) ............................... 124

Schematic Diagram (VIDEO for US & CA) ................................ 126

Wiring Diagram (VIDEO for US & CA) ....................................... 128

Schematic Diagram (VIDEO for UK & XE)................................. 130

Wiring Diagram (VIDEO for UK & XE) ....................................... 132

Schematic Diagram (VIDEO for SS & AU)................................. 134

Wiring Diagram (VIDEO for SS & AU) ....................................... 136

Schematic Diagram (DVD).......................................................... 138

Schematic Diagram (DVD TOP LEFT) ....................................... 140

Schematic Diagram (DVD BOTTOM LEFT) ............................... 142

Schematic Diagram (DVD TOP RIGHT) ..................................... 144

Schematic Diagram (DVD BOTTOM RIGHT) ............................. 146

Wiring Diagram (DVD A SIDE) ................................................... 148

Wiring Diagram (DVD B SIDE) ................................................... 149

FL & Descriptrion ........................................................................ 150

(CA)

(UK)

(XE)

(SS)

(AU)

(US)

DCS-AVD8501

This system consists as follows.

US: JCX-AVD8501(Main unit: 129 606 00), "SX-STM-8501S"(Speaker system: 165 032 00) & "SX-STM-8501W"(Speaker system: 165 033 00)

CA: JCX-AVD8501(Main unit: 129 606 02), "SX-8501S"(Speaker system: 165 032 01) & "SX-8501W"(Speaker system: 165 033 01)

UK: JCX-AVD8501(Main unit: 129 606 03), "SX-8501S"(Speaker system: 165 032 05) & "SX-8501W"(Speaker system: 165 033 02)

XE: JCX-AVD8501(Main unit: 129 606 04), "SX-8501S"(Speaker system: 165 032 06) & "SX-8501W"(Speaker system: 165 033 04)

SS: JCX-AVD8501(Main unit: 129 606 06), "SX-8501S"(Speaker system: 165 032 02) & "SX-8501W"(Speaker system: 165 033 02)

AU: JCX-AVD8501(Main unit: 129 606 07), "SX-8501S"(Speaker system: 165 032 05) & "SX-8501W"(Speaker system: 165 033 02)

REV

SLOW

FWD

SLOW

CLEAR

TRIM

REMOTE CONTROL REM-A8501/US

TEST TONE

FUNCTION

FM MODEPRESET

SOUNDBASSSURROUND

+-MUTE

TU/BAND

RETURNON SCREEN PROG

TV CH+ TV VOL+

TV VOL-TV CH-TV/VIDEO

LAST MEMO

REPEAT

SEARCH MODE

TV POWER

/ ON

ENTER

SHIFT

879

+10

546

213

ANGLE A.REPLAY ZOOM

AUDIO

SLEEP

TIMER ADJUST SET/CLEAR

CLOCK

VOLUME

- 1 -

SPECIFICATIONS

IMPORTANT INFORMATION

Because its products are subject to continuous improvement, SANYO reserves the right to modify product designs and specifications

without notice and without incurring any obligation.

Specifications subject to change without notice.

Amplifier Section

for US

Main Amplifier (Stereo mode)

Continuous minimum sine wave RMS power output per

channel into 8 ohms at 1kHz with no more than 10% total

harmonic distortion.......................................... 33.5 Watts

Main Amplifier (Dolby Digital mode)

Continuous minimum sine wave RMS power output per

channel into 8 ohms at 1kHz with no more than 10% total

harmonic distortion (with Center/Surround/Subwoofer

amplifier off) ...................................................... 33.5 Watts

Center Channel Amplifier (Center)

Continuous minimum sine wave RMS power output into 8 ohms

at 1kHz with no more than 10% total harmonic distortion (with

Main/Surround/Subwoofer amplifier off) ............ 33.5 Watts

Surround Channel Amplifier (Surround)

Continuous minimum sine wave RMS power output per

channel into 8 ohms at 1kHz with no more than 10% total

harmonic distortion (with Main/Center/Subwoofer ampli-

fier off)................................................................ 33.5 Watts

Subwoofer Channel Amplifier (Subwoofer)

Continuous minimum sine wave RMS power output into 8 ohms

at 100Hz with no more than 10% total harmonic distortion (with

Main/Center/Surround amplifier off) ............... 33.5 Watts

for UK,XE,SS,AU

Main amplifier

Stereo mode

30 W x 2 (at 8 ohms, 10% distortion)

Dolby Digital mode

30 W x 2 (at 8 ohms, 10% distortion, with Centre/Surround/

Subwoofer amplifier off)

Center amplifier

30 W (at 8 ohms, 10% distortion, with Main/Surround/

Subwoofer amplifier off)

Surround amplifier

30 W x 2 (at 8 ohms, 10% distortion, with Main/Centre/

Subwoofer amplifier off)

Subwoofer amplifier

30 W (at 8 ohms, 10% distortion, with Main/Centre/Surround

amplifier off)

Input level, Output level and impedance:

VIDEO 1:

VIDEO IN: 1.0 Vp-p (75 )

AUDIO IN (L/R): 300 mV/50 k (US,CA)

AUDIO IN (L/R): 800 mV/50 K (SS,AU)

VIDEO OUT: 1.0 Vp-p (75 ) (Except UK,XE)

AUDIO OUT (L/R): 300 mV/2.2 k (Except UK,XE)

VIDEO 2:

VIDEO IN: 1.0 Vp-p (75 ) (Except UK,XE)

AUDIO IN (L/R): 300 mV/50 k (US,CA)

AUDIO IN (L/R): 800 mV/50 K (SS,AU)

For Euro-AV cable (UK,XE)

Outputs:

FRONT SPEAKERS (L/R): 8

CENTER SPEAKER: 8

SURROUND SPEAKERS (L/R): 8

SUBWOOFER: 8

DVD Video Player Section

Type: DVD Video player

Signal format:

NTSC color (US,CA) PAL or NTSC (Except US,CA)

Laser:

Semiconductor laser, wavelength 650 nm/790 nm

Laser output (Continuous wave max.)

1mW (DVD) 0.5mW (CD)

Frequency range (digital audio):

4 Hz to 44 kHz (DVD fs: 96 kHz)

Signal to noise ratio: More than 105 dB

Harmonic distortion (digital audio): 0.003 %

Wow and flutter: Below measurable level

Tuner Section

(FM)

Frequency range: 87.9 MHz ~ 107.9 MHz (200 kHz steps)(US,CA)

: 87.5 MHz~ 108MHz (Except US,CA)

(AM)

Frequency range: 520 kHz ~ 1,710 kHz (10 kHz steps) (US,CA)

: 522 kHz ~ 1,611 kHz (UK,XE,AU)

: 522 kHz ~ 1,710 kHz (9 kHz steps) (SS)

520 kHz ~ 1,710 kHz (10 kHz steps) (SS)

General

Power requirements: AC 120 V, 60 Hz (US,CA)

: AC 230 V, 50 Hz (UK,XE)

: AC 110 - 120/220 - 240 V, 50/60 Hz (SS)

: AC 230 - 240 V, 50 Hz (AU)

Power consumption: 230 Watts (US,CA)

: 170 Watts (Except US,CA)

Dimensions (W x H x D): Approx. 435 (W) x 90 (H) x 115 (D) mm

Weight: Approx. 7.9 kg (17.2 lbs)

Speaker System

Front left, Front right, Center, Surround left and Surround

right speakers

Unit used : 8 cm, Cone type, Full range

Maximum music power handling capacity : 60 Watts

Nominal impedance: 8

Dimensions (W x H x D) : Approx. 150 x 110 x 115 mm

Weight : Approx. 0.75 kg (1.6 lbs)/speaker

Subwoofer

Unit used : 13 cm, Cone type

Maximum music power handling capacity : 60 Watts

Nominal impedance : 8

Dimensions (W x H x D): Approx. 180 x 390 x 290 mm

Weight : Approx. 5.7 kg (12.6 lbs)

COMPONENT VIDEO OUT (Except UK,XE):

Y: 1.0 Vp-p (75 )

CB: 0.7 Vp-p (75 )

CR: 0.7 Vp-p (75 )

A/V EURO CONNECTOR (MONITOR OUT):

For Euro-AV cable (UK,XE)

MONITOR OUT S-VIDEO OUT:

Y: 1.0 Vp-p (75 )

C: 0.286 Vp-p (75 ) (US,CA)

C: 0.286 Vp-p (75 )NTSC, 0.3 Vp-p (75 )PAL

(Except US,CA)

MONITOR OUT VIDEO: 1.0 Vp-p (75 )

- 2 -

DVD MECHANISM REPLACEMENT

1. Cautionary instructions in handling the assy

(Safety instructions)

Optical pickup

The laser beam used in the pickup is classified as "class 2". Exposing

your eyes or skin to the beam is harmful. Take care not to do so.

(Caution against static electricity and leakage voltage)

Ground securely the work tables, tools, fixtures, soldering irons

(including those made of ceramic) and measuring instruments used

in the production lines and inspection departments that handle

loaders. The workers shall also be grounded.

(Cautionary instructions in handling)

Do not touch the object lens when handling a loader, or the lens

will be stained, resulting in inadequate playability.

There is no power supply protection circuit provided for this product

or adjustment/inspection device. Short-circuiting may lead to fire or

damage.

Take care so as to protect from exposure to water, the entry of

metallic pieces or dew condensation.

In particular, a strong magnet adjacent to the pickup will not only

get inoperative but can damage the pickup if a small metallic piece,

such as a screw or swarm, enters.

The loader edge can cause injury if inadvertently handled.

Do not touch a rotating disk, or injury may result.

This product is a precision device. Handle carefully.

A shock or dropping will cause misalignment or destruction. If it

should occur, refer to clause 2.

This product is so designed as to endure an initial shock equivalent

to a drop from a height of approx. 90 cm under the packed condition.

After the initial shock, the resistivity will still remain at a level of 50

to 60 G, but the mechanical robustness

The entry and deposition of dirt into or on the pickup lens or moving

section will cause malfunction or degradation.

(Connectors)

Do not connect or disconnect while power is on.

Connecting or disconnecting signal wires or the main power cord

when the power is on may destruct the unit or fixture.

When connecting, push all the way in securely.

An insufficient insertion may cause a bad contact, leading to an

erroneous operation.

Do not connect or disconnect roughly by an excessively strong force,

or a broken wire or bad contact may result.

Semiconductors are connected. Do not touch connector terminals

directly.

If the worker is grounded, there is nothing to worry about static

electricity, but the rust on the connector terminal surface caused

by the touch may result in bad contact.

(Power source)

The power source need be good in quality (free from instantaneous

interruptions or noises).

A low quality power source may well cause malfunction.

(Storage)

Do not place or store in a dusty place or a place where dew

condensation is possible.

The entry and deposition of dirt or dust into or on the pickup lens or

moving section will cause malfunction or degradation.

Also, dew condensation causes rust ; the rust penetrate into the

precision part of a pickup, causing malfunction, or degrading the

optical quality of the internal lens and reflector, which also leads to

malfunction.

LASER BEAM SAFETY PRECAUTION

UK,XE,SS,AU

VIDEO 1

ANT

(75Ω)

LOOP

VIDEO IN

AUDIO IN

VIDEO

S-VIDEO

(DVD ONLY)

MONITOR OUT

R L CENTER

FRONT

SUB WOOFER

SURROUND

SPEAKERS 8Ω

VIDEO OUT SELECT

(DVD ONLY)

S-VIDEORGB

NTSCPAL

TV SYSTEM

A/V EURO CONNECTOR

(MONITOR OUT)

VIDEO 2 (IN)

COMPONENT

VIDEO OUT

VIDEO 2VIDEO 1

ANT

75Ω

LOOP

VIDEO IN

AUDIO IN

VIDEO IN

AUDIO IN

VIDEO OUT

AUDIO OUT

VIDEO

S-VIDEO

(DVD ONLY)

MONITOR OUT

R L CENTER

FRONT

SUB WOOFER

SURROUND

SPEAKERS 8Ω

VIDEO OUT SELECT

(DVD ONLY)

S-VIDEOCOMPONENT

NTSCPAL

TV SYSTEM

VOLTAGE SELECTOR

SUB

MAIN

220-240V

110-120V

VIDEO 1

ANT

(75Ω)

LOOP

VIDEO IN

AUDIO IN

VIDEO

S-VIDEO

(DVD ONLY)

MONITOR OUT

R L CENTER

FRONT

SUB WOOFER

SURROUND

SPEAKERS 8Ω

VIDEO OUT SELECT

(DVD ONLY)

S-VIDEORGB

NTSCPAL

TV SYSTEM

A/V EURO CONNECTOR

(MONITOR OUT)

VIDEO 2 (IN)

COMPONENT

VIDEO OUT

VIDEO 2VIDEO 1

ANT

75Ω

LOOP

VIDEO IN

AUDIO IN

VIDEO IN

AUDIO IN

VIDEO OUT

AUDIO OUT

VIDEO

S-VIDEO

(DVD ONLY)

MONITOR OUT

R L CENTER

FRONT

SUB WOOFER

SURROUND

SPEAKERS 8Ω

VIDEO OUT SELECT

(DVD ONLY)

S-VIDEOCOMPONENT

NTSCPAL

TV SYSTEM

CAUTION Ð INVISIBLE LASER RADIATION WHEN OPEN AND

INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.

ADVARSEL Ð USYNLIG LASER STR•LING VED •BNING, N•R

SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDG• UDS

®TTELSE FOR STR•LING.

VARNING Ð OSYNLIG LASER STR•LNING N€R DENNA DEL €R …PPNAD

OCH SP€RR €R URKOPPLAD. STR•LEN €R FARLIG.

VORSICHT Ð UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN

DECKEL GE…FFNET UND WENN SICHERHEITSVERRIEGELUNG

†BERBR†CKT IST. NICHT, DEM STRAHL AUSSETZEN.

VARO Ð AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET

ALTTIINAN€KYM€TT…M€LLE LASERS€TEILYLLE. €L€ KATSO

S€TEESEEN.

- 3 -

DVD MECHANISM REPLACEMENT

1. TRAY and BASE MechanismPart

2. BASE Mechanism Mounting Part

FLOIL OIL

G-474B

MOLYKOTE

EM-50L

MOLYKOTE

EM-50L

MOLYKOTE

EM-50L

MOLYKOTE

EM-50L

SILICON GREASE

KS-64

3. TRAY Part

MOLYKOTE

EM-50L

GREASE

CDF-409

GREASE

CDF-409

4. BASE Mechanism Part

FLOIL OIL

G-2000B

FLOIL OIL

G-2000B

Do not remove the pick-up from base mechanism because of

adjustment difficulty.

- 4 -

MECHANISM OPERATION

1.How to setting the TRAY

1. Move the SLIDE left side.

2. Match the Hole of GEAR

5 and Hole of CHASSIS 4.

CHASSIS

FRONT SIDE

MOTOR

MARKER

3. Match the mark of GEAR 2 and mark of GEAR 3, and then

install the BOSS.

4. Turn the GEAR

1 counterclockwise, and then SLIDE move

right side.

5. The GEAR

1 move from side to side.

RIB

GREASE

EM-50L

GREASE

EM-50L

GREASE

EM-50L

LARGE TOOTH

GEAR HOLE

CHASSIS HOLE

6. Match the hole of GEAR 7 and hole of chassis while turning

GEAR 6.

7. Match the mark of LOADING GEAR

8 and gear of TRAY

where see horn hole 9 of tray.

8. Push a TRAY with the state that turned the entire surface of a

TRAY into approximately 5 degrees the lower part slowly.

LOARDING

GEAR

MARKER

TRAY

HOLE

- 5 -

IC101

BU4066

IC100

LA9702

IC200

LC78661W

IC550

LE28C1001

IC502

M51953

IC500

M37903S4CHP

IC201

T224162B

IC900

BA033

CN900CN200CN500

IC504

TC7SHU04FU

REGULATOR

(actuator)

(motor)

(analog)

5Vd

(digital)

3.3V

(FOR DSP)

16.934MHZ

DSPJVAD

EMPH,C2F,LRCK,BCK,CD_DATA,SPDIF

SDT[O;7]

DCLK,DBGN,DERR

DREQ

DACK

16MHZ

INVERTER

PH 6P

FFC 26P

FFC 16P

FLASH MEMORY

RXD,SCLK

HD_INT,TXD,RDY_HIF

RESET

RESET HRST

16MHZ

DRAM

DEFECTI

RF AMP

RFOP,RFON,PH,TE,ADBH

ADBH

TOST,FOST,BST,VCA

TBAL,FBAL,SGC

DEF

DEFECTO

XHTR

DEF_INH

ANALOG SWITCH

LSI_RESET

HDAT[0;7]

HADR[0;12]

HRDB,HERB,HCSB

HWAITB(RDY),HBUSYB

HIRQB(INT_DEC),WRQ

MICRO COMPUTER

HALL

SPINDLE

MOTOR

U,V,W

U+,U-

V+,V-

W+,W- SPD

DMUTE

IC602

BA6849

IC601

BA5937

3-PHASE MOTOR DRIVER

4-CH BTL DRIVER

FDD

TDD

SLD

OPEN/

DMUTE2

CD x2

CD x4

CAO

CAN

LDON1,LDON2

RFSCT,EQSCT

PP/TE,DPD/TE

VREF

MOTOR

OPEN/CLOSE

SWITCH

LIMIT

SWITCH

SLED

MOTOR

ACTUATOR

FOCUS

TRACKING

F-

F+

T-

T+

5Vd

VR-CD

VR-DVD

GND-LD

LASER

DIODE

LD-CD

HFM

DVD/CD PD

PICK-UP;SF-HD6

TO BACK-END

BLOCK

High-

frequency

circuit

DVD P.W.BOARD OPERATION

1. General operation diagram ( This is a basic general operation diagram)

The circuit mounted on the Loader part (Frontend Board) is configured as shown, which is divided into following bl;ocks according to

main IC's.

- 6 -

DVD P.W.BOARD OPERATION

2. Circuit configuration inside IC100 (LA9702W) and IC200 (LC78661W).

(This is a basic circuit configuration diagram)

76 61 68 63 59 53 27

42 12

206

154

134

136

20120525

5157

XHTRC

DEFECT0

RFP1

TESBIAS

HFLBIAS

TESBIAS

TES

HFL

PCK

JITTER

DETECTION

CIRCUIT

SLCBIAS

LDO1

LDS1

LDO2

LDS2

SLC

SLCBIAS

EFMINP

EFMINN

DEFECTI

HFLIO

RF-PH

RF-BH

AD5/BH

AD2

AD1

AD4/TE

AD3

AD0

TESIO

EFMOUT

EFM,EFM+

EFM+

EFM

DEFECT

FE,TE,PH,BH,RPEC,

JV,BCA,WO

DEGITAL.

CLK

COUNTER

FDO

TDO

SPDO

SLDO

CPOF

VREF

SLCBIAS

SGC

OFSET

BCA

BOOT3T

RFVCA

TBAL

FBAL

D/A

8bit

11ch

+3ch

D/A

8bit

10ch

TES

WO-CNT

HFL

TRACK

COUNTER

DEGITAL.

OFSET,BCA,BOOT3T,

RFVCA,TBAL,FBAL,

SGC,HFLBIAS,TESBIAS,

FDO,TDO,SPDO,SLDO,

SLCBTAS.

RFPI

RFOP

RFON

DEF

BCA

RREC

TOST

FOST

BST

VGA

TEBL

FEBL

SGC

SERVO

VREFS

CPOF

XHTRC

DPD/TE

XQBHPP/TEEQSCT

RFSCT

VREFP

LDON1

LDON2

PICK

APC1

RR 1

FE 1

FE 2

RR 2

APC2

VREFP1

MTX

DVD

DPD

2C+A+B

3-BEAM

PUSH-PULL

REN

REP

LPF

BCA TH

DEFECT

PEAK HOLD

BOTOM HOLD

TE HOLD

LPF2LPF1

BPF

DPD: PHASE A,B,C,D

3-BEAM: F~E

PUSH-PULL: (B+C)-(A+D)

FE1: (B+D)-(A+C)

FE2: A-B

RR1: A+B+C+D

RR2: A+C+B

RREC

RFSCT

CD-3T

BOOST

DPD / TE

VGA

BST

DPD / TE

EQ2

EQ1

EQSCT

CPOF OR TH

DPD / TE

VREF

XHTRC

PP / TE

TOST

FOST

SGC

RFSCT

BCATH

MI-COM

PORT

MI-COM PORT

DSP CONTROL

DRIVE

LA9702W(AMP) LC78661W(DSP)

IC100

IC200

Name TP label

IC, CN

Location Pin no. Description Name TP label

IC, CN

Location Pin no. Description

FE TP101 IC100 25 Focus Error Signal(Analog) TD TP601 IC200 38 Tracking Driver out(analog)

TE TP102 IC100 30 Tracking Error Signal(Analog) FD TP602 IC200 39 Focus Driver out(analog)

RFN TP104 IC100 40 RF Signal(Analog) SPD-FG TP604 IC602 24 Spindle FG signal

RFP TP105 IC100 41 RF Signal(Analog) W TP621 ------ ------

BH TP106 IC100 42 Bottom Hold Signal(Analog) V TP620 ------ ------

PH TP107 IC100 44 Peak Hold Signal(Analog) U TP611 ------ ------

DEF TP230 IC100 46 High : When passing defection H+ TP619 ------ ------

LD1 TP122 Q1004 E DVD Laser Power Supply(Analog) U+ TP618 ------ ------

LD2 TP124 Q1005 E CD Laser Power Supply(analog) U- TP617 ------ ------

TESI0 TP201 IC200 2 TES(Track crossing signal) V+ TP616 ------ ------

HFLBIAS TP204 IC200 28 MIRROR Slice Bias(Analog) V- TP615 ------ ------

HFLIO TP206 IC200 44 MIRROR signal W+ TP614 ------ ------

FSEQ TP211 IC200 84

High : Sync synchronised

LO : Async W- TP613 ------ ------

EFMOUT TP226 IC200 134 RF Digitized signal H- TP612 ------ ------

DEFECT0 TP229 IC200 201 High : When passing defection SLD TP607 IC200 36 Sled Driver out(analog)

TOST TP246 IC200 29 Tracking Offset Control(analog) SPD TP608 IC200 37 Spindle Driver out(analog)

FOST TP247 IC200 30 Focus Offset Control(analog) OPEN ------ IC601 16 TRAY control signal

BOOST3T TP248 IC200 31 RF EQ Control(analog) CLOSE ------ IC601 15 TRAY control signal

RFVCA TP249 IC200 32 RF Voltage Control(analog) OPEN-SW TP627 CN600 5 TRAY Limit SW

TBAL TP250 IC200 33 Tracking Balance Control(analog) CLOSE-SW TP626 CN600 3 TRAY Limit SW

FBAL TP251 IC200 34 Focus Balance Control(analog) HRST TP700 CN500 2 RESET from Backend

SGC TP252 IC200 35 Signal Gain Control(anlog) RESET ------ IC502 6 RESET to Micom

HFBUSYB TP254 IC200 50

Function Busy Low during jump,

adjustment so on.

VREF ------ IC100 27, 79 Reference Voltage(2.5V)

JVAO TP257 IC200 154 Jitters value(analog)

Spindle Hall Voltage

Spindle Coil Voltage

- 7 -

MEMO

- 20 -

DVD P.W.BOARD OPERATION (SIGNAL)

A. RF Signal during play mode.

RF of DVD disc

RF of CD disc

B. Defection Signal (Detection of level down signal)

DEFECT

Scratched defect

Interruption defect

1. RF and Defection Signal

2. Servo and Tray Control

A. S-Curve signal by Focus search

Zero cross point

FDO

S-Curve of DVD Single Layed disc S-Curve of DVD Dual Layed disc

Each signal shown refers to WIRING ,SCHEMATIC DIAGRAM and Table of monitor signals.

(This is a basic signal.)

- 21 -

DVD P.W.BOARD OPERATION (SIGNAL)

B. Focus In and Focus Jump

Cross point

FDO

Zero cross point

Brake pulseKick pulse

FDO

Focus In Focus Jump

C. Tracking Servo

a. TE (Tracking Error) Signal.

TE Curve

b. Track Jump Signal

One Track Jump 16 Track Jump

- 22 -

DVD P.W.BOARD OPERATION (SIGNAL)

D. Seld Servo (Sled motor drive signal)

TE TE

SLDO SLDO

Zoom

E. Spindle Servo (Spindle motor drive signal)

SPD

U+

Spindle Drive (U, V, W)

Spindle (W, W+, FG)

F. Tray open and close

OPEN

OPEN SW

CLOSE SW

OPEN

OPEN SW

CLOSE SW

Tray Close

Tray Open

- 23 -

DVD P.W.BOARD OPERATION (SIGNAL)

3. Decorder

EFMOUT

SBIAS

EFMOUT

PCK

4.3218MHz (CD:Normal speed)

RF, EFMOUT, SBAIS

RF, EFMOUT, PCK

4. Reset Timing for Micom Cotroller

Reset Timing

5. Anti-Defect Processing

A. Disturbance by Defect

Disturbance of tracking

Defect

DEFECT0

TE disturbance at Defect

Suppressed disturbance by TE,FE hold process

- 24 -

DVD P.W.BOARD OPERATION (SIGNAL)

B. Circuit block of Anti-Defect

IC100

IC101

IC200

Defct

PH-BH

DEF

Thold

Fhold

DEFECTO

DEFECTI

Def Inh from IC500

Trk EQ

Fcs EQ

Q1009

Q1010

6. Start-up program

A. Disc type Identification

a. In the case of DVD Dual Disc

b. In the case of DVD Single Disc

- 25 -

DVD P.W.BOARD OPERATION (SIGNAL)

c. In the case of CD Disc

Spindle kick

SPD

6 FG = 1 revolution

Tm > 300ms

B. Disc diameter identification

SPDO

6 FG = 1 revolution

Tm > 155 ms

SPDO

6 FG = 1 revolution

Tm < 155 ms

a. In the case of 12cm Disc b. In the case of 8cm Disc

c. In the case of NO Disc

- 26 -

DVD P.W.BOARD OPERATION (SIGNAL)

7. Adjustment (Auto Adjustment)

A. SGC(Signal Gain Control) Adjustment

B. Tracking Balance Adjustment

Vref

Zoom

FDO

TDO

- 27 -

DVD P.W.BOARD OPERATION (SIGNAL)

C. Focus and Tracking Gain Adjustment

Zoom

FDO

SPD

FDO

SPD

a. Focus gain Adjustment

b. Tracking Gain Adjustment

Zoom

FDO

TDO

FDO

- 28 -

DVD START-UP PROGRAM FLOW CHART

data:Tm

D = 8cm

D = 12cm

NoDisc

Spindle Servo

Gain down

D-type = CD

D-type = DVD Dual

D-type = DVD

SGC

DVD Mode

SGC(Layer1)

data:pk1&pk2

pk2 > Th0

D-type = DVD Dual

Fofst Adj

DVD Mode

SGC(Layer0)

Start

D-type :

Disc Type

D-type = DVD Single

Start

Vref

compensation

Kick

Spindle

pk0 > Th0

FG servo

500 rpm

CD Mode

DVD Mode

Fofst Adj

Fcs Aji

data:pk0

Fofst Adj

Fcs Adj

data:pk1 & pk2

one rev

not yet

done

data:Tm

Rising Time

Tm >Th1

Tm > Th2

Disc diameter identification

pk2 > pk1/3

pk0 > pk1

YES

CD Mode

YES

Th1=246 ms

Th : Time threshold

pk0 : S-Peak value

pk1 & pk2 : 1st & 2nd S-Peak value

YES

Th0 : Level threshold

Disc Type identification

YES

1. Disc Identification

(This is a basic start-up program flow chart.)

- 29 -

DVD START-UP PROGRAM FLOW CHART

2. Fundamental and additional auto adjustment

3 times failed?

Not yet

Start

Fbal adj

failed

Additional

adjustment

Fundamental

adjustment

Fcs OK

D-type

Focus In

CLV On

Dual

Single

Tbal adj

Mirr adj

Tbal adj

Mirr adj

Trk On

Fgain adj

Tgain adj

Fgain adj

Tgain adj

Sled On

Sld Off

Trk Off

Trk On

RF adj

Fcs jump

Fbal adj

Eccentricity

measure

L1->L0

Next Layer

1st layer

DVD

Mode Waiting

Error check

D-type

Fbal adj

Trk shift

EQ sdj

Trk shift

EQ adj.

Sled outer

TOC read

DVD

Single

Dual

Trk shift

EQ adj.

Fcs Jump

- 31 -- 30 -

AOUTO/AOUT1/AOUT2

AOUTO3

ACLK/LRCK/PCMCLK

SRST

IC816

LEVEL SHIFT

(3V->5V)

VOUT1/2

VOUT3/4

VOUT5/6

STB

LATCH(ML)

SCLK1(MC)

X103(CLK)/X102(/OC)

AD0-31

LA4-18

IC812

PST3627UR

RESET

LA0-3,

PWE0-,ALE

X104/X105

DVD0,DVD4

DSTB,DCLK

DVD0-3

DVD5-7

SSPIN1

SSPCLK1

SSPOUT1

RSTP-

SRST-

RXD1

X1012

SPDIF

(VIDEO OUT)

MD0-31,MA0-13

IC801

IC818

D-FF

IC805

LATCH

IC815

EEPROM

16Kb

IC813

MUX

ICX81

FLASH(W/SOFT)

ICX82

FLASH(W/SOFT)

IC804

LATCH

LA0-3

Q8001

A1036

CDDATA

SPDIF

SDT0,4

HRST

TXD

RXD

SCLK

RDY_HIF

LRCK

BCK

CDDATA

SPDIF

CN810

CN809

CN806

CN672 CN683CN482

SDT0-7

DREQ

DACK

DBGN

DCLK

DATA_IN

VFD_CLK

DATA_OUT

STB

(READY)

DVD UNIT(LOADER)

2.5V

IC861

PCM1602Y

A-DAC(6CH)

CN818

+12V

D5V

DAC5V

+3.3V

IC863

KIA4558

AMP

IC819

AND

IC864

KIA4558

AMP

IC862

KIA4558

AMP

Q8001

A1036

Q8003

KRC107

CN805

L-CH

R-CH

A_MUTE

IC842

KIA4558

AMP

IC806

SDRAM 16Mb

IC807

SDRAM 16Mb

IC817

PCM1748E

A-DAC(2CH)

CN805

CN801

SURR_L

SURR_R

CENTER

WOOFER

FRONT_L

FRONT_R

SPDIF

S/RGB/COMP

NTSC/PAL

VCTRL

VDAC1-4

5. 1ch model use

SOCKET section

FRONT PWB

STANDBY MATCH

= STANDBY MATCH

STANDBY NOT MATCH

POWER SUPPLY

from POWER

SUPPLY/SOCKET board

SCART PWB

NT/PAL

VIDEO

Q6707

Q6708

5.1ch

OUTPUT

DS601

SENSOR

COMPOSITE

AUDIO

L/R

S-VIDEO

SPDIF

Y/C

Q6602 Q6601

MUTE

COMPONET

5.1ch MODEL

A/D INPUT

SCART OUTPUT

/XE, /UK MODEL

SW-V

RGB

COMPOSITE

AUDIO L/R

SW-RGB

SCART CONNECTOR

CN660

SW-RGB

SW-V

RGB

CVBS

L-CH

R-CH

VFD

5MHz

IC602

RESET

KEY

Q4811

Q4810

Q4812

Q4813

Q4821

Q4802

Q4803

Q4804

IC601

UPD78023232

CN605

CN601

CN602

VCTRLI

NT/PAL

STB

(NC)IR

CLK

DOUT

DIN

(NC)MUTE

GND

M+5V

P-COM

-30V

FL1

FL2

DS601

SENSOR

KEY-SCAN INPUT

VFD

KEY

IC601

UPD16311

CN605

CN601

CN602

VCTRLI

NT/PAL

STB

VFD_CLK

DATA_OUT

DATA_IN

P_MUTE

GND

M+5V

P-COM

-30V

FL1

FL2

IC480

KIA78R33PI

IC481

KIA78R05PI

IC483

L5431

IC490

STR6651

AC-INPUT

+5V

+12V

+3.3V

P-COM

-30V

FL1

FL2

from MPEG

board

to FRONT

pwb

from MPEG

board

from MPEG PWB

to SOCKET

PWB

FFC 26P

FFC 18P

MPEG AND FRONT END P.W.BOARD OPERATION(BLOCK DIAGRAM)

(This is a basic waveform check.)

- 34 -

MPEG AND FRONT END P.W.BOARD CHECK WAVEFORM

1210

Play DVD

Playback DVD

At the moment when POWER KEY is pushed.

Each signal in indicate in schematic diagram of MPEG

(This is a basic check waveform.)

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Sanyo DCS-AVD8501 User manual

Brand: Sanyo

Model: DCS-AVD8501

Category: AV receivers

Type: User manual

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