Hitachi HTD-K210 Manuale utente

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

DVD Home Theatre System

Jun 2006 Digital Media Systems Group, Hitachi Asia Ltd.

HTD-K210

-1

REVISED VERSION

REVISE THE SERVICE MANUAL

(SC No. 0015E) ISSUED ON DEC

2005

This manual is to amend the following content provided in the Service Manual (SC No. 0015E)

issued on Dec 2005 :

(1) “WIRING DIAGRAM” on page 12

(2) “PCB DIAGRAMS” on page 19, 21-22 & 24

(3) “TROUBLESHOOTING” on page 29-39

(4) “REPLACEMENT PART LIST” on page 40-50

Please ignore these pages and replace them with the following pages respectively.

WIRING DIAGRAM (To replace Pg 12 of SC No. 0015E)

(DVD

MECHANISM

KHL-310C)

GND

LD-DVD

AVCC

LD-CD

VR DVD

VR CD

L-VCC

GND

CD/DVD

TRAY -

TRAY+

FCS+

FCS-

SP-

SP+

LIMIT

GND

SL+

SL-

TRAY IN

GND

TRAY OUT

LOAD+

LOAD-

+16V

GND

-16V

+22V

GND

-22V

POWER

GND

-5V

NHY

F-

F+

MIC-R

MIC-L

MUTE

GND

-5V

HVCC

USB-

USB+

GND

SD-CLK

RMC

DATA

STB

CLK

GND

5VV

VCC

POWER SW

FUNCTION BUTTON BOARD 1

FUNCTION BUTTON BOARD 2

FUNCTION BUTTON BOARD 3

SD/USB BOARD

MIC BOARD

DECODER BOARD

AMP BOARD

POWER BOARD

DATA

CLK

GND

RADIO-L

9V RADIO

RADIO-R

GND

TFCF1E806A

RECEIVER

YZEA9284

YZES30971

YZEA9199

YZEA9289

YZES31019

YZES30970

YZES30969

YZES3898

YZES30967

YZES3772

C-OUT

GND

LFE-OUT

GND

RS-OUT

GND

LS-OUT

GND

R-OUT

GND

L-OUT

GND

YZES3897

YZEA9286

YZEA9285

YZEA9287

YZEA9464

YZEA9288

DVA2630 FUNCTION BUTTON CIRCUIT DIAGRAM

SCHEMATIC DIAGRAMS (To replace Pg 19 of SC No. 0015E)

SW2

SW3

SW1

SW4

DOUT

DIN

CLK

STB

KE1

KE2

KE3

KE4

VDD 14

S1 15

S2 16

S3 17

S4 18

S5 19

S6 20

S7 21

S8 22

S9 23

S10 24

S11 25

S12 26

S13 27

S14 28

S15 29

S16 30

S17 31

S18 32

VDD 33

VEE 34

S19 35

G9 36

G8 37

G7 38

G6 39

VDD

LED5

LED4

LED3

LED2

LED1

VSS

OSC

PT6311

F-

S10

S11

S12

S13

S14

S15

S16

S17

S18

F+

VF1

DATA

STB

+5V

RMC

GND

CLK

F+

POWER SW

VCC

HS0038

104

100uf/16v

104

R117

F-

-24V

R107 10K

R108 10K

R109 10K

R110 10K

VD1 IN4148

VD2 IN4148

VD3 IN4148

VD4 IN4148

LED1

S12 NEXT

FUNCTION

S7 TITLE

S4 MEMORY

S8 PAUSE S14 OPEN

S9 STOP

S10 PREV

S5 MENU

PLAY

R112

10K

R101

510

R103

10K

R105

10K

R102

10K

R104

10K

S11

POWER

VFD20-0605A

C101

104

R116

R106

2.2

R114

180

R115

180 VD6

6A3

LED2

LED5

LED3

LED4

620

VCC(+5V)

VOL UP

VOL DOWN

S2 TUNNING DOWNS3 TUNNING UP

VD5 IN4148

RP1

R113

4K7

XP1

XS1

POWER CIRCUIT DIAGRAM (REVISED)

T301

BCK-A2620

C301

0.22U/280V

C310

330P

C325

2200uF/16V

C302

120P

C316

2200uF/16V

C318

220U/16V

C307

4700P/400V

R319

680

IN 1

GND 2

OUT

N307

MC7905

L301

R309

47K/3W

VD310

SF16

V302

8550d

N304

FCF10A20

C328

22U/50V

R320

4.7K

AC220V/50HZ

V301

STP7NC70ZFP

- +

VD315

KBU8K(806)

VD314

SF36

R336

220K

V305

9014

C333

0.1U/275V

L306

3.3uH

V306

9014

R301

39K

R306

L305100U

1 Adj

2 FB

3 CS

4 Gnd

HV 8

OUT 7

Vcc 6

Drv 5

N301

NCP1203

V307

8550D

F3011

T3.15A 250V

VD305

IN4148

R305

10K

L304

220uH

GND

OUT 3

N302

MC7809CT

L302

ZBF253L

VD306

1N4148

R303

100K

VD311

1N4148

C306

103/1KV

R304

100

R307

L303

ZBF253L

L3074.7uH

C319

470U

R314

3.6K

R312

R315

680

R308

C311

47P/1KV

VD303

31DQ06

VD301

NC C308

4.7n

N305

UTC431

R302

22K

C322

22uF/50V

N306

FCF10A20

C305

120U/400V C315

22U/50V

C327

470uF/16V

VD312

SF16

VD302

IN4007

C313

104

R318

C323

10uF/16V

R317

3.6K

V303

9014

C317

22U/50V

VD304

HER208

R310

0.15/2W

VD313

SF36

R322

4.7K

R313

24K

C321

470uF/35V

R321

C314

470uF/35V

R337

33K

F+

GND

-22V

-25V

GND

25V

-19V

GND

5.6V

GND

POWER ON

5.6V

F-

+19V

-5V

VCC

LV-ET28A

XP302

V304

PC817

XP303

N303

PQ1CG3032RZ

XP304

XP301 R316

10K

C303

470P

/250V

C304

470P

/250V

(To replace Pg 21 of SC No. 0015E)

AMP CIRCUIT DIAGRAM (REVISED)

C11

22uF

C21

22uF

C31

22uF

C41

22uF

C51

22uF

R13

R23

R33

R43

R53

C53

22uF

C43

22uF

C33

22uF

C24

22uF

C13

22uF

C212

470p

C22

470p

C32

470p

C42

470p

C52

470p

C14

220p

R14

56K

R15

C15

33uF

C24

220p

R25

C25

33uF

C44

220p

C54

220p

C34

220p

R45

R55

R35

10K

C35

33uF

C55

33uF

C45

33uF

R24

56K

R34

56K

R44

56K

R54

56K

R16

36K

C16

3.3p R26

36k

C26

3.3p

C61

22uF

R63

R64

100K R69

62K

R67

1K/1W

C64

22uF/50V

R68

220K

VD61

4002

C66

104

R70

10K

C63

47uF

R66

R65

150K

C62

22uF

C67

104 L6

5.8uH

R86

10/1W

100uH

R92

2.2/1W C86

224

R87

2.2/1W

C81

224

R81

10/1W

5.5uH

R88

2.2/1W

C82

224

R82

10/1W

5.5uH

R89

2.2/1W

C83

224

R83

10/1W

5.5uH

R91

2.2/1W

C85

224

R85

10/1W

5.5uH

R90

2.2/1W

C84

224

R84

10/1W

5.5uH

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

STK433-930

7294

R46

36K

C46

3.3p

C56

3.3p

R56

36K

R36

36K

C36

3.3p

0.1uF

ch5IN ch5NF ch4IN ch4NF

ch5-VE

V-3

hcE

V+

cFN

N2h

BTSFN1

cVerP-D

BUS

rP+EV+2h

cEV

-1hc

ccV+

cV-E

9 158 6

GND

100u

10/1W

0.1uF

100u

10/1W

474

470uF

R105

47K

R106

47K

R107

47K

R108

47K

R109

47K

R110

47K

V102

5551

V101

5551

C103

470uF

R104

10K

V104

5551

V106

5551

V103

5401

V105

5551

VD104

4002

VD101

4002

VD102

4002

S3S1 S2

VD103

R101

10/1W

C102

2.2uF

R102

10K

C101

100uF

C104 10uF

R111

47K R112

180

R113

300K

R114

100K

C105

22uF

C106

22uF

R115

100/0.25W

R103

10K

C65

47uF

VCC

+19V

GND

-19V

+25V

GND

-25V

GND

TDA

R61

R62

10K

XS2

XP3

XS1

5R8

C68

50P

8ohm

6ohm

GND

R41

10K

R11

10K

R21

10K

R22

100K

R12

100K

R42

100K

R51

10K

R52

100K

R32

100K

R31

10K

ch4-VE

EV-2hcEV+1h

amrehTE

V+

0.22

25 26 27 28

R10

0.22

C17

47UF

(To replace Pg 22 of SC No. 0015E)

DECODER PCB CIRCUIT DIAGRAM 1 (REVISED)

AVDD3

OP-

RFV18

OP+

2SB1132

JITFO

DQS0

DQ2

ASTB

AD1

AD6

V1P4

TEO

ACLK

DQ0

RFVDD3

VSCK

VSDA

Open JP1 , if used VFD

DQ15

VSDA

AD[0..7]

TRO

JITFN

A18

PLLVDD3

LD-DVD

A17

A21

IRVCC

STBY

SCL

DQ7

AD0

VSYNC#

A16

MEMORY

A12

V2P8

TDO

AD2

DACVDD3

VSTB

ASDAT1

PWR#

PWDN#

TRIN

TROUT

RFSVDD3

DMSO

TRCLOSE

VREF

SP+

OP+

DQ6

PLLVDD3

LDO1

A[0..21]

V2P8

V1P4

DQ5

DACVDD3

Y[1..6]

OPO

T-

FOSO

XTALI

RFOP

RFON

LDO1

T+

LOAD-

FOO

TRO

DMO

FMO

FOSO

FMSO

TRSO

DMSO

V20

V1P4

VSTB

VSDA

VSCK

HSYNC#

VSYNC#

TROPEN

LOAD+

FOO

TCK

FMO

DMO

VREFN

IOA

MDI1

ASPDIF

MDI2

V18

SUBA

FMSO

TRSO

ADIN

V1P4

SL+

LDO2

SP-

SUBB

ASPDIF

DQ27

DQ19

MA0

DQM3

DQM1

DQ16

MA11

BA0

DQ11

DQ8

DQ24

DQ29

SUBC

DQ22

CS#

MA9

DCLK

DQ18

DQ10

DQ23

DQS1

SL-

MA8

DQ9

MA1

MA7

DQ20

MA5

DQ13

DCLKB

BA1

MA3

DQM2

DACVDD3

MA6

D1V25

MA2

MA10

MA4

DQ21

RAS#

WE#

DQ26

CAS#

DQ17

DCKE

DQ30

DQ25

DQ12

DQ28

V1P4

A10

DQ1

AD3

DQ14

A14

A13

AD7

A20

SUBD

UWR#

PCE#

TMS

V18

USBVDD

DQ4

VREFP

L20

ASDAT2

ADCVDD3

ABCK

ALRCK

TDI

ASTB

RS-232

DQ3

DQM[0..3]

BA[0..1]

ACLK

RXD

CE23

47uF/16v

CE24

47uF/16v

AVDD3

CE26

47uF/16v

RFV33

TXD

ALRCK

C15 1uF

TP55

TP75

TP48

R66 10k

JITFN

JITFO

TP33

TP45

CB37

0.1uF

ALRCK

C31

0.1uF

ABCK

R64 20k

C42

150pF

CB35

0.1uF

CB22

0.1uF

TP44

CB38

0.1uF

R60 20k

R33 0

TP56

CB12

0.1uF

2N3904

3 2

R34 0

R27

CB23

0.1uF/N.C

TP72

R47

TP4

RFV18

TP67

TP79

C17 0.047uF

C45

0.1uF

R28 1

DCKE

R45

R26 R

DCLK

C41

150pF

TP40

R18 0

R39 100k

TP16

CB36

0.1uF

L11

R63 10k

CE19

47uF/16v

C29 120pF

27MHz

TP78

TP28

C30

6x1 W/HOUSING

C40

0.015uF

CB18

0.1uF

R24 0

TP49

C1 100pF

U4A

74HC04/N.C

1 2

147

R17 680k

TP60

C108

2200pF

CB17

0.1uF

TP12

CB31

0.1uF

TP32

C35

0.1uF

CE20

47uF/16v

L15

R51

CE25

10uF/25v A

R15 100k

C11

33pF

TP43

CB25

0.1uF

C27 1uF

L19

C16 1uF

R25 0

R40 10k

R62

20k

TP27

C18 0.047uF

C12 0.1uF

R37 0

R41 10k

R31 10

C39

0.1uF

C13 0.1uF

CE22

100uF/16v

D17

MT1389

DVDA

CEQP 250

DVDB

DVDC

DVDD

AGND

OSP 252

OSN 253

DVDRFIP

DVDRFIN

CDFON

CDFOP

TNI

TPI

MDI1

MDI2

LDO2

LDO1

AVDD3 256

V2REFO

28 SGND

VREFO

30 V20

TEO

32 FEO

USB_VSS

RFLVL/RFON

26 CSO/RFOP

TEZISLV

OP_OUT

OP_INN

OP_INP

FOO

42 TRO

USBM

TROPENPWM

PWMOUT1/V_ADIN9

USB_VDD3

FMO

38 DMO

HIGHA0

HIGHA1

75 HIGHA2

HIGHA3

72 HIGHA4

71 HIGHA5

70 HIGHA6

69 HIGHA7

DVDD18

AD7

DVSS

APLLCAP

AD5

87 AD4

APLLVSS

APLLVDD3

AD3

84 AD2

83 AD1

82 AD0

DVDD3

IOA0

IOA2

IOA3

IOA4

IOA5

DVDD3

IOA6

IOA7

A16

A17

DVSS

IOA18

IOA19

IOA20

IOA1

ALE

IOOE

IOWR

IOCS

DVSS

UWR

URD

DVDD18

UP1_2

UP1_3

UP1_4

100

UP1_5

101

UP1_6

102

UP1_7

103

UP3_0

104

UP3_1

105

DVSS

116

UP3_4

106

UP3_5

107

RFVDD3 244

RFRPDC 245

DVDD3

108

ICE

109

PRST

110

111

INT0

112

DVDD18

122

DQM0

113

DQS0

114

RD7

115

RD6

117

RD5

118

RD4

120 DVSS

119

RD3

121

RD2

123

RD1

124

RD0

125

RD15

126

RD14

128 DVDD3

127

RD13 129

YUV0/CIN 192

FS 191

VREF 190

DACVDDC 189

RD16 188

RD17 187

RD18 186

RD19 185

RD20 184

RD21 183

DVDD3 182

RD22 181

RD23 180

DQM2 179

DQM3 178

RD24 177

RD25 176

DVSS 175

RD26 174

DVDD18 173

RD27 172

RD28 171

RD29 170

RD30 169

DVDD3 167

RD31/ASDATA5 168

RA4 166

RA5 165

RA6 164

DVSS 163

RA7 162

DVSS 161

RA8 160

RA9 159

RA11 158

RCLK 156

CKE 157

DVDD3 155

RCLKB 154

RVREF/V_ADIN3 153

DVDD18 152

RA3 151

RA2 150

DVSS 148

RA1 149

RA0 147

RA10 146

BA1 145

DVSS 144

BA0 143

DVDD3 141

RCS 142

RAS 140

CAS 139

RWE 138

DQM1 137

DQS1 136

DVSS 134

RD8 135

RD9 133

RD10 132

RD11 131

DR12 130

RFGND 249

IREF 255

SVDD3

RFGC 254

JITFN 231

JITFO 230

LPFOP 238

LPFIN 237

CRTPLP 248

HRFZC 247

LPFIP 236

CEQN 251

RFRPAC 246

S_VREFN 243

ADCVSS 241

S_VREFP 242

S_VCM 240

ADCVDD3 239

PLLVDD3 234

LPFON 235

PLLVSS 232

MC_DATA 224

SPDIF 225

ASDATA4 222

DVDD18 221

ASDATA3 220

ASDATA2 219

RFGND18 226

ASDATA1 218

ASDATA0 217

ACLK 215

ALRCK 213

ABCK 214

DVDD3 204

SPBCK/ASDATA5 211

SPLRCK 210

SPDATA 209

SPMCLK 208

DVDD3 212

HSYNC/V_ADIN2 207

YUV7/ASDATA5 206

VSYNC/V_ADIN1 205

YUV6/R 203

YUV5/B 202

DACVSSA 201

YUV4/G 200

DACVDDA 199

YUV3/CVBS 198

DACVSSB 197

YUV2/C 196

DACVDDB 195

YUV1/Y 194

DACVSSC 193

IDACEXLP 233

USBP

FG/V_ADIN8

TDI/V_ADIN4

TMS/V_ADIN5

TCK/V_ADIN6

TDO/V_ADIN7

AD6

IOA21/V_ADIN0

DVSS 216

DVSS 223

XTALO 228

XTALI 229

RFVDD18 227

TP52

L13

1000pF

TP50

C10

33pF

TP66

TP5

SP-

TP10

TP65

R53

R19 15k

ADIN

OP-

TP29

C38

330pF

C25 1uF

R48 10

TP20

R21

150k

CB30

0.1uF

TP54

L17

10uH

C9 0.1uF

C33

0.1uF

CB15

0.1uF

R59 10k

R35 0

C32

R46 R

TP57

R52

R23 100k

TP8

R65 10k

CE21

100uF/16v

R36 0

L18 10uH

TP17

TP80

L16

TP42

R32

1.8k

C24 1uF

TP13

CB27

0.1uF

C44

0.1uF

L31

4x1 W/HOUSING

R30 10k

C22

CB24

0.1uF

TOP

HA1

HEADER 24 SMD0.5 TOP

TP36

R16

SL+

CB32

0.1uF

TP69

SL-

C8 0.1uF

R57 15k

R68 10k

TP23

C23

100pF

R67

10k

CB29

0.1uF

LIMIT

TP62

TP31

TP73

C28 C

TP2

TP76

TP47

2SK3018

TP24

TP9

TP53

R56 18k

C37

330pF

R22

680k

SDA

SCL

R50 10

R42 100k

CE18

47uF/16v

TP46

PWDN#

TP34

TP18

TP71

CB33

0.1uF

TP26

TP3

C34

1500pF

LIMIT

R61

10k

DQS1

L12

DACVDD3

TP63

C46

0.1uF

2SK3018

TP35

BA6208F

VCC

BOUT

GND

AOUT

4BIN 5

NC 6

GND 7

AIN 8

ASDAT[0..2]

C21

0.1uF

C20 C

R38

TP70

ICE

TP25

CB21

0.1uF

TP37

C26 1uF

L10

R14 750k

TP51

TP22

PCE#

PWR#

C2 2200pF

TP68

TP74

2SB1132

CB34

0.1uF

CB39

0.1uF

TP77

TP21

TP41

5x1 W/HOUSING

TP6

TP83

TP82

CB13

0.1uF

R20

150k

RFO

CB16 0.1uF

R58 10k

CE17

10uF/25v A

CB26

0.1uF

TP14

TP61

TP38

TP11

TP7

JP1

2x1

MA[0..11]

R44

TP81

IR1

TP39

R54

U4B

74HC04/N.C

3 4

147

C7 0.1uF

CB20

0.1uF

TP58

C43

0.1uF

BA5954

VINFC 1

PVCC1 9

PGND 10

VOSL+ 12

CF2 3

CF1 2

VOTK+

VNFFC 7

VOFC+ 14

VOFC- 13

PVCC2

PGND

VNFTK

CTK2

BIAS

VOSL 6

VINSL+ 4

VINSL- 5

STBY

VCC 8

VOSL- 11

VOLD+

VOLD-

VOTK-

VINLD

23 PREGND

CTK1

VINTK

G1 29

V1P4

R29 0

CB28

0.1uF

CB14

0.1uF

2SB1132

3 2

CB19

0.1uF

TP59

L14

0.1uF/N.C

TP30

C14 0.033uF

TP15

20pF

R55 20k

URST#

TP19

C19 0.47uF

URST#

AV33

AVCC

MO_VCC

DV33

VCC

AVCC

DV33

V18

MO_VCC

V18

DV33

DV33A

V18

DV33

RFV33

DV33

MO_VCC

V18

DV33

V18

DV33

TCK STBY

TRCLOSE

DV33

VCC

1V8A

TDI TROUT

TRIN

TMS

TDO

SDA

DQ[0..31]

RN1

0x4

1 2

5 6

ALRCK

ABCK

PCE#

VSDA

VSCK

SCL

ASPDIF

PRD#

MA[0..11]

ASDAT[0..2]

URST#

ACLK

PWR#

RAS#

CS#

WE#

A[0..21]

DCLK

DCKE

CAS#

PWR#

PCE#

AD[0..7]

SP+

BA[0..1]

VSYNC#

HSYNC#

PWDN#

Y[1..6]

DQM[0..3]

ASTB

RxD

TxD

XTALI

ALE

F+

CS#

CAS#

RAS#

WE#

V1P4

IOA

RFO

PWR#

PCE#

PRD#

GND

2003/07/10 Modify

A11

V20

ADCVDD3

RFVDD3

DQM0

AVCC1

AD4

PRD#

IIC

DACVDD3

SDA

VIDEO INTERFACE

Very Important

to reduce

Noise

TP64

DQ31

LD-CD

DQS0

RFSVDD3

MDI1

LDO2

2SK3018

HSYNC#

2N3904

AVCC1

ASDAT0

IOA

VSCK

AD5

TEZISLV

GND

FEO

OPO

FLASH

TROPEN

V20

F-

A19

A15

INT0#

AUDIO INTERFACE

URD#

VREFP

VREFN

(To replace Pg 24 of SC No. 0015E)

TROUBLESHOOTING (To replace Pg 29-39 of SC No. 0015E)

Secure the

connection of

power cord.

Replace F3011.

Is the

AC power of

C333 220V?

No defect, return

set to customer

yes

Start

Set OK?

Is the

DC power of

C305 310V?

Replace L301.

Replace Power

PWB Assy.

Replace Power

PWB Assy.

SYMPTOM

yes

SYMPTOM: POWER CIRCUIT ABNORMAL (REVISED)

Check other

Is the

voltage at pin 4

& pin 6 of N301

13V?

Replace N301.

yes

Does the secondary

transformer output

+13V,+18V, +25V

& -24V?

Replace T301.

Replace V304.

Replace Power

PWB Assy.

yes

no Replace VF1.

Is the voltage

at F+ & F- of

VF1 normal?

Start

Is the voltage

at pin 34 of

PT6311 -24V?

Replace PT6311.

Replace Function

Button PWB Assy

yes

SYMPTOM: OUTPUT DISPLAY ABNORMAL (REVISED)

Is the connection

of Function Button

& Decoder PWB

Assy secure?

Secure the connection

of Function Button

& Decoder PWB Assy.

yes

SYMPTOM: OPEN/CLOSE TRAY ABNORMAL (REVISED)

Start

Does pin 1 of XP1

(Function Button

PWB Assy) output

pulse signal?

Is the voltage at

pin 7 of XP1 5V?

yes

(1) XP1 (Function Button PWB)

& XS9 (Decoder PWB) or

(2) Loading Assy & L23

(Decoder PWB)?

Secure the connection

of Function Button &

Decoder PWB Assy.

yes

Replace remote

receiver B1 of

Function Button or

Decoder PWB Assy

Is OSD "open"

showed on the

screen?

Replace Loading

Assy

yes

Is the connector broken between

(To replace Pg 29-39 of SC No. 0015E)

SYMPTOM: LOAD DISC ABNORMAL (REVISED)

Start

Check the

optical pick-up

lens

Pick-up lens do not light up at all

Replace Loading

Assy

Pick-up lens light up dimly

Check the

connectors of

the Loading Assy

& Decoder

PWB Assy

Secure the

connection of the

Loading Assy &

Decoder PWB Assy

Not OK

Pick-up lens light up OK

Insert a DVD disc

and turn on the

power

What is the

reaction of the

Loading Assy?

The Loading Assy works but the initializing

operation of the optical pick-up lens

does not start (the optical pick-up lens operates

twice), or abnormal noise sound

Replace Loading

Assy or Decoder

PWB Assy

Loading Assy does not work

The operation of the loading assy stops at initializing display.

Any message

shown on

screen?

Display OSD "LOADING"

Nothing on display

Chec the DVD

disc for

fingerprints, dirt etc.

Display OSD "CHECK DISK"

Is the DVD

disc OK?

DVD disc OK DVD disc dirty

No defect, return

set to customer

Does the

image output

stop during the

operation?

yes

(To replace Pg 29-39 of SC No. 0015E)

no Replace S1, S2

or S3

Is the relay

S1,S2 & S3 short

at standby?

Start

Is the

voltage of XP3

pin 2,5 +/-19V

pin 6,9 +/-25V?

(refer Pg. 22)

Refer to Symptom

“Power Circuit

Replace N1 or N2.

Replace AMP

PWB Assy.

yes

SYMPTOM: AUDIO CIRCUIT ABNORMAL (REVISED)

Abnormal”

(To replace Pg 29-39 of SC No. 0015E)

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