Sharp XL-3000V service manual SERVO/SIGNAL Control

Page 28

XL-3000V

A

TO

TERMINAL

PWB-A4

P26 3-B

CNP807

CNS807

CNW807

R883

8.2

2

2

1

1

R884

Q805

KTA1266 GR

11.3V

8.2

10.6V

11.6V

0.57V

R870

0.2V

R867

0V

0V

33K

0.67V

3.3K

11.7V

0V

R868

1

2

3

4

A3

Q804

27K

KTC3199 GR

-

B

PWB

R885

R882

C892

R873

R881

3.3K

6.8K

22K

Q807

47/16

D805

470K

DISPLAY

KTC3200 GR

FROM

0.1V

0.63V

1N4004

FAN

1

R880

LIGHT

0.9V

2

0V

3.3K

DIMMER

C893

P33 12-C,D

3

R888

CD_STB

R837

CNS702

4

10K

47/16

0.7V

AMP_DEC

1K

0V

Q806

5

FAN_DEC

R866

2SC535 C

6

CLID_SW

4.7K

7

CLID_PRO

8

C872

9

CLID_UP

0.1

CLID_DW

10

+B

CNP702

C

TO MAIN PWB-A1(1/2)

R864

D803

A

27K

1N4004

4.9V

GR

0.64V

Q803

KTC3199

B

VIDEOPWB-D

R865

D804

27K

1N4004

0V

D802

1N4004

R813

R887

+B

+B

+B

22K

10

L80

10∝

TO

1

CNS801

G12P27-

DGND

1

R836

/RST

2

1K

R835

3

R834

1K

D

4

1K

R833

5

P35G,H12-

CNP801V

R832

1K

6

1K

R831

7

L801

R830

1K

8

1K

PU_IN

9

LRCK

10

L806

BCK

11

10∝H

12

CNW801 12

C825

R814

3.3K

0.056

C823

R812

C819

15P(CH)

0.01

C887

C824

3.3K

0.1

DATA

0.0027

C826

15P(CH)

0.056

E

16.93MHz

0V C827

C822

/CCE

BUCK

BUS3

BUS2

BUS1

BUS0

X801

220/10

C818

0.1

R820

15

R811

1K

2.1V

2.2K

0V 2.6V

2.2V

5V

5V

0V

0V 0V

0V 0V

5V

0V

0V

0V 0V 5V

0V

5V

0V 0V

5V

0V

2.5V

4.3V

2.2V

0V

2.1V 1.8V

R810

MAINPWBA1(1/2)-

C817 C821 0.1

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

3.3K

C810

8

0V 81

XVDD

XVSS

VDD

PXO

FLGA

FVO

TEBC RFGC

50 2.1V

0.001

P2712G-

C830

C828

2.4V

82

XO

/DMOUT

49

2.1V

R809

C811

0.056

100/10

0V 83 DVDD

4

11

FOO 48 2.2V

10K

47/10

2.3V 84 DVR

XI

81

DVSR

PXI

VSS

TESI01

TESIN

/DACT

/CKSE

I03

I02 I01 I00

VSS

VDD

FLGD FLGC

FLGB

SEL

2VREF

DMO

FMO

TEZI

47

2.2V

R808

C809

TO

2.4V 85 LO

82 RO

14

50 VREF

1

TEI

46 2.2V

0V 86 DVSL

49 TRO

TSIN 45 2.1V

C840

C862

5V 87 TEST1

6

SBAD 44 2.1V

F

100/10

0.001

C869

5V

88 TEST2

FEI

43 2.2V

R819

220P

5V 89 TEST3

IC802

7

RFRP

42 2.1V

C807

220

C868

4.3V 90 BUS0

RFZI

41 2.1V

0.033

TC9462F

5

R807

220P

4.3V

91 BUS1

RFCT

40

2.1V

4.3V

SERVO/SIGNAL CONTROL

10K

C867

92 BUS2

AVDD 39 5V

C806

C866

220P

4.3V 93 BUS3

RFI

38 2.1V

0.0047

220P

5V 94 VDD

SLCO 37 2.1V

C805

+B

0V 95 VSS

AVSS 36 0V

0.0027

R855 100K

R853 100K

R852 100K

C836 100/10

4V 96 BUCK

99 /TSMOD

VCOF

35 1.4V

C804

C812 0.01 C813

C865

3.3V

97

/CCE

VCOREV

34

2.1V

0.01

100 /RST

PWB-A4

R854

C835

220P

5V

98 TEST4

P2VREF

PVREV

33

2.1V

C803

100K

0.056

TESIOO

LPFO

2.1V

47/10

5V 99

TESTO

UHSO

EMPH

MBOV

MONIT

HSSW

TMAXS TMAX

/HSO

LRCK

VSS

BCK

AOUT

DOUT

IFP

SBOK

CLCK

VDD

VSS DATA SFSY

SBSY

SPCY

SPDA COFS

VDD

ZDET

PDO

32 LPFN

C864

C837

4.9V

100

31 2.1V

R806

C802

C86

220P

470P

12

470

TERMINAL

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

15K

0.015

G

5V

5V

5V

0V

1.4V

0V

2.5V

0V 2.5V

0V

0V

5V

1.2V

5V

0V 0V 2.4V

0V

0V

0.6V 1.7V

0V

5V

0V

4.3V

2.1V

0V

2.1V

2.1V 2.1V

R804

100K

TO

R851

13

R801

R802

330

P26 3-A

CNP805

10K

47K

3

3

C820

C838

47/10

C801

0.01

C829

100P

2

2

100/10

1

1

+B

CNS805

CNW805

+B

H

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

• The numbers 1 to 15 are waveform numbers shown in page 41.

1

2

3

4

5

6

Figure 28 SCHEMATIC DIAGRAM (3/10)

– 28 –

Image 28

Contents Contents Model XL-3000VAC Power Cord and Plug Adaptor Voltage SelectionSpecifications Names of Parts Front panelDisplay 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 Removing and Reinstalling the Main Parts How to remove the CD lid See FigPerform steps 1,2 and 7 of the disassembly method to remove CD Mechanism Section See FigAdjustment Setting the Test ModeFM Detection FM Mute LevelIC15V BEXTest Video CD Video PWB-DDisc Checking Setting Checking of vector scope waveformChecking the black-and-white level 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 FF/PRESET UP ON-OFF CD PLAY/PAUSE/TUNING UP ON-OFFVolume UP ON-OFF Volume Down ON-OFFSwitch PWB CD Motor PWBFOCUS/TRACKING SPIN/SLED DriverPower PWB-B RminalMain PWB PWBDisplay PWB Lamp PWBTuner PWB IC10V IC15VVideo CD Decoder IC16VBuffer AMP IC11VVideo CD Encoder Terminal PWB-A4 FromVideo PWB-D Tuner PWB-A2 CNS7 FromVideo Signal CD SignalFM Signal VolumeSERVO/SIGNAL Control CD Motor PWB-C CD LID Motor DriverSchematic Diagram 5/10 AM Signal FM Signal Tuner PWB-A2Main PWB-A11/2 CNP307Lamp PWB-A7 Display PWB-A3System Schematic Diagram 8/10 Video PWB-D IC10VROM 256Kx16 Video CD DecoderVideo Signal CD SignalXL-3000V Buffer AMPTo 15 are waveform numbers shown MER AssisFrom Display PWB-A3 SpindleOhms AntennaTo Main PWB-A1 To Video To MainPink Video PWB-D TOP View Video PWB-D Bottom ViewIC14V IC16VWaveforms of CD Circuit When the CD does not function TroubleshootingParts Code UDSKA0004AFZZ HF Error FailureSled Motor Operating FailureLaser failure Focus failureSpindle motor clv servo failure Focus servo sawtooth wave failureDMO HF error No soundTEI Tezi 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-OUT-A CH1-OUT-BCH1-IN-A 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 IC10V RH-IX0041SJZZ IC11V VHINJM4565M-1IC14V IC15VVCKYPA1HB102K VCKYPA1HF223ZRC-GZA227AF1C RC-GZW228AF1VRC-EZD107AF1A VCKYCY1EB104KRC-GZA227AF1A VCKYCY1EB563KR358VRS-CY1JB822J R359VRS-CY1JB182J R360VRS-CY1JB472J R393VRS-CY1JB102J R395VRD-ST2CD473JR607VRS-CY1JB682J R621VRS-CY1JB223JQCNCM998DAFZZ QCNCM037ESJZZCNP801V QCNCW010MSJZZ QCNCW007RSJZZLX-WZ9006SJZZ CPNLS1006SJ01TSPC-0221SJZZ HSY042SPK07302 PWB-A6 PWB-A5PWB-A7 PWB-A3 PWB-A8Copyright 2001 by Sharp Corporation