Sharp XL-3000V service manual Tuner PWB-A2, AM Signal FM Signal, Main PWB-A11/2, CNP307, P26 5,6-A

Page 31

XL-3000V

TUNER PWB-A2

AM SIGNAL

FM SIGNAL

C360

0.022

C361

0.022

C364

10/16

C366

0.001

C374

0.018

Q351

KRC104 M

R357

470K

C373

0.018

R364

3.3K

R363

3.3K

1 0V

3.7V

C362

3.3/50

C363

0.022

C365

0.022

4.7V

(0V)

R350

R356

C369

56P

C371

R361

(0V) 2

3

1/50

5.6K

2.7K

456kHz

1K

X351

C367

C368

1/50

2.1V (2.7V)

2.1V (2.7V)

1/50

C372

R362

0V (0.9V)

2.3V (0V)

1/50

5.6K

5V

0.6V

2.3V

2.1V

1.3V

1.3V

4V

(2.2V)

23

22

21

20

19

18

17

16

15

14

13

AM OSC

IN REG

FM AFC

AM RF IN

VSM

GND AM LOW CUT

FM/AM OUT

STEREO

FM DET

MPX VCO VCC

MPX IN IF OUT

PHASE R-CH OUT

L-CH OUT

MO/ST

AM MIX OUT

AM IF IN

SD

PHASE (AM/FM)

+B

R366

2

3

4

5

6

7

8

9

10

11

12

2.2K

5V

2.1V

R352

2.1V

0V

5V

5V

2.9V

(4.3V)

5V

0V

3.8V

(1.9V)

C358

3.8V

(1.2V)

1K

+B

1/50

C350

CF352

R353

270

C398

100/10

0.022

C357

R355

3.3K

C352 10/16

1

3

0.022

CF351

C353 0.022

C354

2.2/50

C370 1/50

C356

C399

0.022

0.001

T351

2

C355

22P

R376

10K

AM IF

ZD351

SD

11

DZ5.1BSB

FM ST

10

DO

+B

L352

9

CL

R395

47K

100∝H

8

TO

0.022

C396

CE

MAIN PWB-A1(1/2)

C394

47/16

100/10

7

DI

82

R393

6

CNP307

C397

0.022

C392

0.001

1K

R387 C383

R391

+B

A_12V

0

P26 5,6-A

R377

390

C395

5

C387

0.022

0.022

D_GND

86

10/16

5.6K

4

R381

C380

TUN_L

0

10K

5.6K

R392

3

L351

390

TUN_R

2

100∝H

A_GND

1

C393

R380

CNS307

1/50

1.5K

R379

2.2K

2.6V (0V)

C385

0.01

C386

330P

Q360

KTA1266 GR

2.6V

0V

0V

0.9V

0.9V

5.2V

0V

(2.6V)

+B 11.7V

10.8V

0V

R383

+B

CH)

22

21

20

19

18

17 16

15

14

13

12

5.6K

10.9V

XOUT

VSS

AOUT

AIN

PD

VDD

FMIN

AMIN

IF IN

2

R385

MUTE

MO/ST

IF REQ

5.6K

Hz

X IN

CE

CL

DO

FM

FM

C391 47/16

DI

R365

R384

1

2

3

4

5

6

7

8

9

10

11

10K

6.8K

CH)

2.6V

0V

0.1V

0.1V

4.8V

5.1V

1.7V (11.4V)

3.7V (0V)

3.9V

3.5V

(0V)

0V

R359

IC302

R374

1.8K

1K

D308

4

LC72131

R373 1K

R372 1K

R371

1N4148

R360

1 PLL(TUNER)

1K

4.7K

7

8

9

10

11

12

Figure 31 SCHEMATIC DIAGRAM (6/10)

– 31 –

Image 31

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 levelTuner 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 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 DecoderBuffer AMP IC11VVideo 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-A11/2Lamp PWB-A7 Display PWB-A3System 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 DisplayOhms AntennaTo Main PWB-A1 To Video To MainPink IC16V Video PWB-D TOP ViewVideo PWB-D Bottom View IC14VWaveforms of CD Circuit When the CD does not function TroubleshootingParts Code UDSKA0004AFZZ Operating Failure HF ErrorFailure Sled MotorFocus failure Laser failureSpindle motor clv servo failure Focus servo sawtooth wave failureDMO RFI HF errorNo sound TEI TeziSled 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 SEG25-SEG0 IC701 RH-iX0038SJZZ System Microcomputer/FL driver IX0038SJIC801 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 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