Sharp XL-3000V service manual Video Signal, CD Signal, FM Signal, Control, Volume

Page 27

XL-3000V

	P33 12-F,G		FROM
PWB-A2		CNS703	FROM
		CNS703	DISPLAY PWB-A3	MAIN PWB-A1(1/2)
			DISPLAY PWB-A3

1

2

3

4

5

6

7

8

9

10 11 12 13

CNP703

DO

STEREO

SD

CL

CE

DI

CD +B

P MUTE

P STB

A 24V

D GND

5V

VIDEO SIGNAL

C204

R204 100K

C202

R202

C212

C214

8.2K

0.0056

0.0033

4.7/50

1/50

CD SIGNAL

R206 10K

R212 2.7K

R214 12K

R216

C216

R218

R208

FM SIGNAL

12K

1/50

12K

330

5.1V

5.1V

5.1V

10.2V

R209 10K

Q203

5

6

7

8

KRC107 M

R207

D 5V

IC201

C208

47K

100/16

SURROUND 3

2

0V G

KIA4558P

R210

0V

4.44V

SURROUND

D201

10K

S

1

1N4148

Q201

CONTROL

4

5.1V

3

5.1V

2

5.1V

1

C215

R217

5V

0V

2SK246 GR

0V

R211 2.7K

1/50

12K

R205

10K

R213

12K

R215

12K

C201

0.0056

C213

4.7/50

R203

100K

C209

47/16

C211

0.0033

C203

R201

8.2K

1/50

C408

R438 6.8K

C420 0.0027

10/16

R440 3.9K

C426

10/16

TUN R

C404

10/16

C416 10/16

C418 2.2/50

CD R

R418 1K

R422

C422 0.1(ML)

C424 0.1(ML)

C402

R416

1K

4.8V

0.14V

0.14V

AUX

R

R404

1K

0V

0V

10/16

C433

1.8K

IC401

0V

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

AUX L

220P

LC75342M

4.8V

L1

4.8V L2

4.8V

L3

0V L4

4.8V LSEL0

4.8V LIN

4.8V

LTRE

4.8V

LBAS1

4.8V LBAS2

LOUT

TEST

VSS

CE

DI

R403

FUNCTION/

C432

4.8V

RSEL0

RIN 4.8V

RTRE 4.8V

RBAS1

RBAS2

ROUT

VREF

+B

1.8K

VOLUME

R1

R2

R3

R4

VDD

CL

220P

EQUALIZER

16

17

18

19

20

21

22

23

24

25

4.8V

26

4.8V

27

28

29

30

C401

0V

4.8V

C421 0.1(ML)

0V

4.8V

4.8V

C431

CD L

10/16

R417

C423

220P

TUN

L

1K

C403

5V

R415

1K

4.8V

4.8V

R421

1K

C415 10/16

R437 6.8K

C417 2.2/50

C419

0.0027

C425 10/16

C429 33/16

9.6V

D403

1N4004

10/16

R439

C407

4.8V 3.9K

.1(ML)0

10/16

R423

1K

CL

C430

R424

1K

DI

100/16

R425

1K

CE

D402

1N4004

+B

L

D401

+B

1N4004

R

TERMINAL

IC601

STK40202

L601

N.C. 0V

POWER AMP.

3∝H

SPEAKER

R608

PRE +VCC

BIAS

+VE1

–VE1

+VCC

–VCC

–21.7V

+VE2

–VE2

PRE –VCC

GND

R637

1K

IN1

NF1

NF2

IN2

4.7

C615

R634

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

0.1

+

R111

C613

L-CH

47/16

3.3K

R609

1K

0.1V

0.1V

20.6V

–18.9V

R109

21.8V

C114

20.2V

0V

0.0015

0.1V

0.1V

SO601

1K

C108

0.1

22K

100/50

Q601

+B

C603

KTC3199 GR 0V

R1031K

C105

0.0015

C103 R105

10/50 470

C107

R106 470

C106R1081K

R-CH

0.6V

100/50

R110

C614

C640 0.0047

C639 0.0047

+

33/16

R603

R113

C111 C112

R114 100

1K

0.1

10K

0V

R115

100

10/50 10/50

C616

0V

C116 0.022

R101

56K

10/50

0.1

–B

0.6V

C104

R638

39K

3P

R607

6.8K

R604

C101 10/50

4.7

10K Q602

0V

C109

L602

CHASSIS

.4V

KTC3199 GR

3P

R104

GND

3∝H

+B

A GND

56K

+B

C102

R102

10/50

39K

Q102

R124

KTA1268 GR

C110

47K

R123

0.001

CHASSIS

GND

R122

10K

1K

+B

Q103

J601

R121

KTC3200 GR

R662

HEADPHONES

330

10K

Q104

3

R118

KTC3200 GR

0.6V

0.6V

L603

R661 330

2

47K

1.2V

0.6V

Q101

1

D606 D605 1N4004 1N4004

10∝H

C627 0.022 C628 10/16

KTC3200 GR

4

0V

R119

C120

R120

C113

5

33K

1K

0.022

9

220/16

+B

10

–B

1-C

A

1-F P28

A1(2/2)

B

+B

8

P28

TO PWB-

5V

1

A_GND

-C,D

MAIN

2

903

99 GR

M_GND

4.9V

+B

3

11

+B

+B

M_12V

4

P29

C905

CD_GND

5.6V

5

100/10

100/10

+B

+B

CD_6R2V

C906

6

902

6BSB

32 1-F

FROM

CNS652

DISPLAY PWB-A3

7

8

9

10

11

12

Figure 27 SCHEMATIC DIAGRAM (2/10)

– 27 –

Image 27

Contents Model XL-3000V ContentsVoltage Selection AC Power Cord and Plug AdaptorSpecifications Rear panel Names of PartsFront panel DisplayRemote control Setting the Clock System Connections Setting the AC voltage selector Connecting the AC power lead Listening to a CD LED PWB DisassemblyPWB CD Mechanism Section See Fig Removing and Reinstalling the Main PartsHow to remove the CD lid See Fig Perform steps 1,2 and 7 of the disassembly method to removeFM Mute Level AdjustmentSetting the Test Mode FM DetectionVideo PWB-D IC15VBEX Test Video CDVideo OUT Disc Checking SettingChecking of vector scope waveform Checking the black-and-white levelTurning on the test mode Tuner Test Mode Test Outline of tuner radio test modeDetails of tuner test mode Electronic volume Test Mode Test Timer test Mode TestLCD Test Mode Test Key input diagnosis Test Mode Test Volume Down ON-OFF FF/PRESET UP ON-OFFCD PLAY/PAUSE/TUNING UP ON-OFF Volume UP ON-OFFSPIN/SLED Driver Switch PWBCD Motor PWB FOCUS/TRACKINGPWB Power PWB-BRminal Main PWBLamp PWB Display PWBTuner PWB IC16V IC10VIC15V Video CD DecoderIC11V Buffer AMPVideo CD Encoder Tuner PWB-A2 CNS7 From Terminal PWB-A4From Video PWB-DVolume Video SignalCD Signal FM SignalSERVO/SIGNAL Control CD LID Motor Driver CD Motor PWB-CSchematic Diagram 5/10 CNP307 AM Signal FM SignalTuner PWB-A2 Main PWB-A11/2Display PWB-A3 Lamp PWB-A7System Schematic Diagram 8/10 Video CD Decoder Video PWB-DIC10V ROM 256Kx16Buffer AMP Video SignalCD Signal XL-3000VTo 15 are waveform numbers shown PWB-A3 Spindle MERAssis From DisplayAntenna OhmsTo Main PWB-A1 To Main To VideoPink IC16V Video PWB-D TOP ViewVideo PWB-D Bottom View IC14VWaveforms of CD Circuit Troubleshooting When the CD does not functionParts Code UDSKA0004AFZZ Operating Failure HF ErrorFailure Sled MotorFocus failure Laser failureFocus servo sawtooth wave failure Spindle motor clv servo failureDMO RFI HF errorNo sound TEI TeziTrack search failure Sled motor operation failureSled servo failure IC401 VHiLC75342M-1 Function/Volume Equalizer LC75342M Function Table of ICPin No Port Name Function Test VSS Pin No Terminal Name Input/Output Function SEG25-SEG0 IC701 RH-iX0038SJZZ System Microcomputer/FL driver IX0038SJIC801 VHiTA2109F/-1Servo Pre Amp. TA2109F IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 1/3 Uhso HSOPin No Port Name Input/Output Function IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 2/3 IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 3/3CH1-IN-B CH1-OUT-ACH1-OUT-B CH1-IN-AIC14V VHiES3883F/-1 Video CD Encoder ES3883F 1/2 IC14V VHiES3883F/-1 Video CD Encoder ES3883F 2/2 IC16V RH-iX0025SJZZ D-RAM 256Kx16 IX0025SJ ICV14 VHiES3883F/-1 Video CD Encoder ES3883FIC15V VHiES3880F/-1 Video CD Decoder ES3880F Aclk AOUT/SELPLL0 Atclk ES3880FMemory LCD701 RV-LX0012SJZZ LCD DisplayFor U.S.A. only IC15V IC10V RH-IX0041SJZZIC11V VHINJM4565M-1 IC14VRC-GZW228AF1V VCKYPA1HB102KVCKYPA1HF223Z RC-GZA227AF1CVCKYCY1EB563K RC-EZD107AF1AVCKYCY1EB104K RC-GZA227AF1AR621VRS-CY1JB223J R358VRS-CY1JB822J R359VRS-CY1JB182J R360VRS-CY1JB472JR393VRS-CY1JB102J R395VRD-ST2CD473J R607VRS-CY1JB682JQCNCW007RSJZZ QCNCM998DAFZZQCNCM037ESJZZ CNP801V QCNCW010MSJZZHSY042SPK07 LX-WZ9006SJZZCPNLS1006SJ01 TSPC-0221SJZZ302 PWB-A8 PWB-A6PWB-A5 PWB-A7 PWB-A3Copyright 2001 by Sharp Corporation