Sharp XL-3000V service manual Schematic Diagram 5/10

Page 30

XL-3000V

A

B

C

D

E

F

G

H

T302

AM

FM Mute

Tracking

Level

C330

12P(CH)

C331

0.047

C332 0.022

VD301

SVC348S

C343

C362 3.3/50

D301

0.022

1mH

33P

C302

VR351

R358

8.2K

10K(B)

0.001

C329

L353

1N4148

+B

C335

560P

D302

C337

0.022

C334

27P(UJ)

IC303

LA1832S DET./IFFM

IFMPX./AMFM

IFFMOSCAM INOUT

MIXAM OUT IN

1N4148

R323

R336

2.5V

5V

68K

5.6K

T306

24

23

OSC

AM Band

Coverage

AM

IC301

R351

5.6K

1

2

2.1V

5V

TA7358AP

0.8V

1.5V

5.2V

1.5V

FM FRONT END

3.8V

5.2V

BF301

0V

5.2V

4.4V

BAND PASS

1

2

3

4

5

6

7

8

9

1

3

FILTER

C351

0.022

C352 10/16

0.01

18P(CH)

L302

KDV147C

R306

2

C318

T304

FM IF

10

R316

1

2

3

C319

5P

CF303

2

CF302

C303

R307

1

3

R312

47

2.2K

0.001

VD303

C312

R303

FM OSC.

+B

C304

R302 100K

33P

FM ANT.

L303

1N4148

R301

BandFM Coverage

C313 6P(UJ)

VD302 KDV147C

Q306

2SC535C

R382

C306 7P(UJ)

FM RF

33K

C314

22P

D305

(CH)

3.6V

22

0.8V

330

AM

C311

R308

0V

TP301

R386

R313 680

330

C305

0.0047

C307 C308

0.022

C309

0.001

10P(CH)

R315Q3022SC535C

10/16

R314

C310

0.022

0.0047

10K

33

GND

R304

2.3V

R305

47K

680

FM

0.8V

C315

100P

C316

75ohms

D306

0V

1N4148

33

C317

0.022

ANTENNA

2

SO301

TERMINAL

C381

12P(CH)

R310

4.7K

X352

C301

4.5MHz

0.012

CHASSIS

R309

470

C382

GND

C349

15P(CH)

0.001

I

C384

LC

0.001 PLL

+B

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

1

2

3

4

5

6

Figure 30 SCHEMATIC DIAGRAM (5/10)

– 30 –

Image 30

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 OUTTurning 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 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 IC16VIC11V Buffer AMPVideo CD Encoder Video PWB-D Terminal PWB-A4From Tuner PWB-A2 CNS7 From FM Signal Video Signal CD 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 CNP307Display PWB-A3 Lamp PWB-A7System 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 SpindleAntenna OhmsTo Main PWB-A1 To Main To VideoPink IC14V Video PWB-D TOP ViewVideo PWB-D Bottom View IC16VWaveforms of CD Circuit Troubleshooting When the CD does not functionParts Code UDSKA0004AFZZ Sled Motor HF ErrorFailure Operating FailureLaser failure Focus failureFocus servo sawtooth wave failure Spindle motor clv servo failureDMO TEI Tezi HF errorNo sound RFITrack 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 IC701 RH-iX0038SJZZ System Microcomputer/FL driver IX0038SJ SEG25-SEG0IC801 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 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