Sharp XL-3000V service manual Video Signal, CD Signal, Buffer AMP

Page 35

XL-3000V

VDAC

-A1(1/2)

IC11V

+B

16

17

NJM4565M

C171V

R115V

VIDEO SIGNAL

BUFFER AMP.

C144V

10/25

15K

PWB

C143V

33P(CH)

CD SIGNAL

33P

7

1

R107V

(CH)

6.1V

6.1V

R108V

+

+ –

C172V

R116V

VDAC

MAIN

10K

6

–

2

5.3V

10K

15K

1

CNS802

5.3V

5.3V

10/25

2

1

CNP802A TO

5.3V

5

3

22P(CH)

AGNDV

8

4

R101V

C167V

22P(CH)

C168V

3

2

R185V

R186V

100K

R102V 100K

L-CH

10.9V

4

3

10K

0V

10K

AGNDA

P26 4-A

33P(CH)

5

4

C141V 33P

C147V

100/10

C142V

R-CH

(CH)

C149V

6

5

+5V

0.1

7

6

DGND

+B

8

7

+12V

R187V

R189V

R181V

C148V

100/10

R104V

R184V

R188V

R190V

9

8

R123V

100K

100K

R182V

10K

10K

10K

100K

10K

75

10K

CNW802V

C103V

R183V

100K

C140V

R121V

Q12V

R103V 6.8K

10/25

22/25

3.3K

5.7V

+B

2SC1740 SR

R124V

3.6V

R195V

C138V

-A3

C104V

R112V

100

10/25

100/10

220

2.9V

56

R114V

+B

C139V

PWB

6.8K

R113V

C101V

10/25

1000/6.3

R111V

DISPLAY

100

C137V

2.2K

FROM

10/25

+B

R137V

BUSY

1K

1

R138V

VD_DI

2

P33 12-E

R139V

33

VD_DO

CNS704

3

1K

R140V

ACK

4

1K

STB

5

R141V

DGND

L103V

6

CLID_OUT

3.3∝H

1K

7

R178V

+B

82

CNP804V

C136V

L104V

C158V

C160V100/10 0.1

C169V 0.1

C131V

R171V

0.1

3.3∝H

+B

0.001(CH)

100K

L11V

10∝H

X1V

+B

27MHz

+B

C184V

R167V 33

0.1

C129V 27P(CH)

TC100V

10P

C124V 0.1

R194V 270

C150V

C161V 100/10

0.1

163V

C183V

2.2V

2.3V

5V

0V

0V

2.3V

5V

0V

2.4V

5V

2V

0.8V

0V

0V

0V

5V

5V

0V

0V

0V

2.3V

5V

1.3V

0V

33

22P(CH)

80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51

27MHz

PCLK2X

PCLK

VCC

VSS

NC

VSS

XIN

VCC

VSS

XOUT

AUX3

AUX4

AUX5 AUX6

VCC

ACAP

VDAC VSSAV

VSSAV

YDAC

VCCA

VCCA

CDAC

VSSAV

VSSAV

COMP

RSET

VREFM VREF

MIC2VSSAA

R164V

1.2V 81

50

10

4.5V 82 HSYN_B DSC_D7

MIC1 49

R165V

1.5V 83 DSC_D6

AOL+ 48 2.3V

10

4.8V 84 VSYN_B

AOL– 47 2.3V

1.4V 85 DSC_D5

AOR– 46 2.3V

1.0V 86 YUV7

AOR+ 45 2.3V

C162V

1.2V 87 YUV6

VCCA 44 5V

1.9V 88 YUV5

VREFP 43 0V

0.1

1.9V 89 YUV4

IC14V

VCM 42 2.3V

C164V

C127V

5V

90 VCC

VSSA 41 0V

47/10

0.1

0V

91

VSS

ES3883F

BUSY/AUX15 40

2.3V

VIDEO CD ENCODER

C165V

92

YUV3

S_EN/AUX14 39

1.4V

5V

0.1

93

DSC_D4

LA18/AUX13 38

0V

0.6V 94 YUV2

RBCK 37

1.4V

95

DSC_D3

NC/AUX12 36

0.8V

96

YUV1

NC/AUX11 35

1.6V

DSC_D2

NC/AUX10 34

0.8V 97

DSC CLK

DSC STB

0V

1.3V 98 YUV0

DSC D0

RESET B AUX7

RSTOUT

RSD 33

5V

R100V

0V 99 DSC_D1

AUX0

AUX1

AUX2

MCLK AUX8

AUX9

TBCK

SQCK

SQSO NC

VCC 32

4.7K

R94AV

4.7K

R94BV

100 VSS

VSS

VCC

VCC

TWS

TSD

RWS

VSS

VSS

VSS 31

0V

0

NC

NC

NC

NC

NC

NC

R105V

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

NTSC

(LOGO)

PAL (LOGO)

0V

5V

3.5V

0V

1.2V

0V

3.5V

0V

2.7V

5V

0V

5V

5V

1.5V

2.1V

0.1V

1.8V

5V

5V

0V

0V

4.7K

C130V

0.1

C106V

1

C135V

0.1

C159V

0.1

C166V

22/25

+B

+B

+B

+B

R06AV

R01AV

R142V

4.7K

A1(2/2)

4.7K

33

R193V

R07AV

4.7K

4.7K

R10AV

R02AV

-

4.7K

CNP801V

PWB

4.7K

1

R03AV

R11AV

DGND

1

4.7K

4.7K

/RST

MAIN

2

EAUX0

BUS0

TO

3

EAUX01

BUS1

4

R08AV

EAUX02

BUS2

P28 1-D,E

5

CNS801

4.7K

EAUX03

BUS3

6

R09AV

EAUX08

BUCK

2AV

7

EAUX04

/CCE

.7K

4.7K

8

PU_IN

9

LRCK

10

BCK

11

DATA

12

CNW801

12

7

8

9

10

11

12

Figure 35 SCHEMATIC DIAGRAM (10/10)

– 35 –

Image 35

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 levelDetails of tuner test mode Turning on the test modeTuner Test Mode Test Outline of tuner radio test mode LCD Test Mode Test Electronic volume Test Mode TestTimer 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 DecoderVideo CD Encoder IC11VBuffer AMP 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-A11/2System Display PWB-A3Lamp PWB-A7 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 DisplayTo Main PWB-A1 AntennaOhms Pink To MainTo Video IC16V Video PWB-D TOP ViewVideo PWB-D Bottom View IC14VWaveforms of CD Circuit Parts Code UDSKA0004AFZZ TroubleshootingWhen the CD does not function Operating Failure HF ErrorFailure Sled MotorFocus failure Laser failureDMO Focus servo sawtooth wave failureSpindle motor clv servo failure RFI HF errorNo sound TEI TeziSled servo failure Track search failureSled motor operation failure Pin No Port Name Function IC401 VHiLC75342M-1 Function/Volume Equalizer LC75342MFunction Table of IC Test VSS Pin No Terminal Name Input/Output Function SEG25-SEG0 IC701 RH-iX0038SJZZ System Microcomputer/FL driver IX0038SJIC801 VHiTA2109F/-1Servo Pre Amp. TA2109F Pin No Port Name Input/Output Function IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 1/3Uhso HSO 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