Sharp XL-3000V service manual Video PWB-D, IC10V, ROM 256Kx16, Video CD Decoder

Page 34

XL-3000V

A

B

C

D

E

F

G

H

VIDEO PWB-D

Q11V

+B

2SD1858 R2

+B

C125V

C105V

0.1

5V

4.5V

100/10

3.8V

R143V

C126V

0.1

220

R5V

4.7K

R97V

+B

C112V

0.1

+B

4.7K

+B

5V

5V

C115V

1 VPP

VCC

22/25

3.4V

32 5V

R91V

R98V

R93V

2

A16

31 PGM/A18

4.7K

4.7K

4.7K

1.6V

3

A15

A17 30 3.2V

1.6V

4

A12

A14 29 2.0V

1.8V

5

A7

A13 28 1.3V

1.8V

6

A6

A8 27 1.7V

1.9V

7

A5

A9 26 1.6V

+B

1.9V

8

A4

A11 25 1.6V

1.9V

9

A3

OE 24 0V

2.0V

10

A2

A10 23 1.9V

1.9V

11 A1

CE

22

0.3V

1.7V

1.2V

12 A0

D7

21

1.2V

1.5V

13 D0

D6

20

C122V

1.3V 14 D1

D5 19 1.4V

1.6V

D4

1.4V

0.1

0V 15 D2

18

1.4V

16 VSS

D3 17

IC10V

IX0041SJ

TO CHASSIS

ROM 256Kx16

GND

0V

1.6V

1.9V

1.6V

1.7V

1.8V

1.8V

1.9V

1.9V

1.9V

2.0V

1.9V

1.7V

3.5V

3.5V

0.3V

0V

3.5V

1.2V

1.5V

1.4V

1.4V

1.4V

1.6V

1.3V

1.2V

3.3V

3.5V

2.7V

2.6V

C119V

C108V

100/10

0.1

R163V

0.1

LA11

LA10

LA9

LA8

LA7

LA6

LA5

LA4

LA3

LA2

LA1 LA0

LSCE0

LSCE1 LROMCE LOE

LWR

LD7 LD6 LD5

LD4

LD3

LD2

LD1

LD0

AUX7/STB

AUX5 STBDSC

AUX6/SCK

+B

VCC3

VSS

50

0V

C109V 5V 81 VCCVSS

33

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

1.6V

82 LA12

AUX4 49

0.2V

R164V

1.3V

5V VD_DI

10

83

LA13

48

2.0V

0.2V VD_DO

R165V

84 LA14

AUX2/VD_DO 47

1.6V

85 LA15

AUX1/DSADATA 46 5V

10

R170V

48 AUX3/VD_DI

4.7K

33

3.4V

86 LA16

AUX0/DSAACK 45 5V

MCLK1.5V

88

AUDIOCLK

PCLK2XSCN

43

2.2V

R161V

3.2V

87

LA17

PCLKQSCN

44

2.3V

R166V

TSD0.1V

89 AUDATA

IC15V

DCLK 42 0.2V

33

R168V TBCK1.8V

90 BCLK

HSYNC 41 4.5V

33

TWS2.1V

91 LR

ES3880F

VSYNC 40

4.8V

R156V

0.1V

VIDEO CD DECODER

R169V

92 DRAS1/DOE

YUV7 39 1.0V

33

4.7K

0V

93 RSD

YUV6 38 1.2V

0V

94 RBCLK

YUV5 37 1.9V

R157V

5V

95 RWS

YUV4 36 1.9V

2.6V

96 TDMCLK

YUV3 35 2.3V

820

0V

97 TDMDR

YUV2 34 0.6V

R158V

820

R159V

820

C110V

0.1

3.5V

98 TDMFS

3.5V

1.8V

1.7V

1.8V

1.4V

1.8V

1.8V

1.7V

1.8V

1.8V

1.3V

2.9V

0.5V

0.4V

2.7V

2.8V

1.5V

2.2V

1.3V

2.9V

0.9V

0.4V

2.4V

2.4V

0.9V

2.4V

5V

YUV1 33 0.6V

0.1

C121V

22/25

3.0V

3.6V

3.5V

0V

C120V

99 DCAS

DRAS

DWE

DA0

DA1

DA2

DA3

DA4

DA5

DA6

DA7

DA8 DBUS0

DBUS1

DBUS2 DBUS3 DBUS4

DBUS5

DBUS6 DBUS7 DBUS8

DBUS9

DBUS10

DBUS11

DBUS12

DBUS13

DBUS14

DBUS15

RESET

YUV0 32

1.8V

VCC3

VSS

3.6V

100

VSS

VCC3 31

0V

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

R160V

4.7K

C116V

0.1

+B

+B

+B

R162V 4.7K

5V

1.4V

1.8V

1.7V

1.8V

3.5V

3.5V

NC

2.2V

1.5V

2.8V

2.7V

5V

0.4V

0.5V

2.9V

1.3V

5V

C118V

VCC

A3

A2

A1

A0

NC

RAS

WE

NC

D7

D6

D5

D4

VCC

D3

D2

D1

D0

VCC

C111V

0.1

20 19 18 17 16 15 14 13 12 11 10

9

8

7

6

5

4

3

2

1

C117V 0.1

C102V

VSS

A4

A5

A6

A7

A8

OE

UCAS

LCAS

NC

D8

D9

D10

D11

VSS

D12

D13

D14

D15

VSS

22/25

22/25

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

0V

1.8V

1.8V

1.7V

1.8V

1.8V

0.1V

3.3V

3.3V

1.3V

2.9V

0.4V

0.4V

0V

2.9V

2.4V

0.9V

2.4V

0V

AUX0

IC16V

IX0025SJ

R08A

D-RAM 256Kx16

4.7K

R12AV

4.7K

•NOTES ON SCHEMATIC DIAGRAM can be found on page 19.

•The numbers 16 and 17 are waveform numbers shown in page 41.

1

2

3

4

5

6

Figure 34 SCHEMATIC DIAGRAM (9/10)

– 34 –

Image 34

Contents Contents Model XL-3000VAC Power Cord and Plug Adaptor Voltage SelectionSpecifications Display Names of PartsFront panel Rear panelRemote control Setting the Clock System Connections Setting the AC voltage selector Connecting the AC power lead Listening to a CD Disassembly LED PWBPWB Perform steps 1,2 and 7 of the disassembly method to remove Removing and Reinstalling the Main PartsHow to remove the CD lid See Fig CD Mechanism Section See FigFM Detection AdjustmentSetting the Test Mode FM Mute LevelTest Video CD IC15VBEX Video PWB-DChecking the black-and-white level Disc Checking SettingChecking of vector scope waveform Video OUTTuner Test Mode Test Outline of tuner radio test mode Turning on the test modeDetails of tuner test mode Timer test Mode Test Electronic volume Test Mode TestLCD Test Mode Test Key input diagnosis Test Mode Test Volume UP ON-OFF FF/PRESET UP ON-OFFCD PLAY/PAUSE/TUNING UP ON-OFF Volume Down ON-OFFFOCUS/TRACKING Switch PWBCD Motor PWB SPIN/SLED DriverMain PWB Power PWB-BRminal PWBDisplay PWB Lamp PWBTuner PWB Video CD Decoder IC10VIC15V IC16VBuffer AMP IC11VVideo CD Encoder Video PWB-D Terminal PWB-A4From Tuner PWB-A2 CNS7 FromFM Signal Video SignalCD Signal VolumeSERVO/SIGNAL Control CD Motor PWB-C CD LID Motor DriverSchematic Diagram 5/10 Main PWB-A11/2 AM Signal FM SignalTuner PWB-A2 CNP307Lamp PWB-A7 Display PWB-A3System Schematic Diagram 8/10 ROM 256Kx16 Video PWB-DIC10V Video CD DecoderXL-3000V Video SignalCD Signal Buffer AMPTo 15 are waveform numbers shown From Display MERAssis PWB-A3 SpindleOhms AntennaTo Main PWB-A1 To Video To MainPink IC14V Video PWB-D TOP ViewVideo PWB-D Bottom View IC16VWaveforms of CD Circuit When the CD does not function TroubleshootingParts Code UDSKA0004AFZZ Sled Motor HF ErrorFailure Operating FailureLaser failure Focus failureSpindle motor clv servo failure Focus servo sawtooth wave failureDMO TEI Tezi HF errorNo sound RFISled motor operation failure Track search failureSled servo failure Function Table of IC IC401 VHiLC75342M-1 Function/Volume Equalizer LC75342MPin No Port Name Function Test VSS Pin No Terminal Name Input/Output Function IC701 RH-iX0038SJZZ System Microcomputer/FL driver IX0038SJ SEG25-SEG0IC801 VHiTA2109F/-1Servo Pre Amp. TA2109F Uhso HSO IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 1/3Pin No Port Name Input/Output Function IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 2/3 IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 3/3 IC802 VHiTC9462F/-1 Servo/Signal Control TC9462FCH1-IN-A CH1-OUT-ACH1-OUT-B CH1-IN-BIC14V VHiES3883F/-1 Video CD Encoder ES3883F 1/2 IC14V VHiES3883F/-1 Video CD Encoder ES3883F 2/2 ICV14 VHiES3883F/-1 Video CD Encoder ES3883F IC16V RH-iX0025SJZZ D-RAM 256Kx16 IX0025SJIC15V VHiES3880F/-1 Video CD Decoder ES3880F ES3880F Aclk AOUT/SELPLL0 AtclkLCD701 RV-LX0012SJZZ LCD Display MemoryFor U.S.A. only IC14V IC10V RH-IX0041SJZZIC11V VHINJM4565M-1 IC15VRC-GZA227AF1C VCKYPA1HB102KVCKYPA1HF223Z RC-GZW228AF1VRC-GZA227AF1A RC-EZD107AF1AVCKYCY1EB104K VCKYCY1EB563KR607VRS-CY1JB682J R358VRS-CY1JB822J R359VRS-CY1JB182J R360VRS-CY1JB472JR393VRS-CY1JB102J R395VRD-ST2CD473J R621VRS-CY1JB223JCNP801V QCNCW010MSJZZ QCNCM998DAFZZQCNCM037ESJZZ QCNCW007RSJZZTSPC-0221SJZZ LX-WZ9006SJZZCPNLS1006SJ01 HSY042SPK07302 PWB-A7 PWB-A3 PWB-A6PWB-A5 PWB-A8Copyright 2001 by Sharp Corporation