Sharp XL-3000V service manual Display PWB, Lamp PWB

Page 22

XL-3000V

AM

Tracking fL

AM

T302

FM MUTE

LEVEL

GND

X3

VD301

+5V

456

FM

VR351

24

23

22

21

20

19

18

75ohms

+5V

AM Band

OSCAM OUT

OSCAM IN

AFCFM

RFAM IN

VSM

LOWAM CUT

FM/AM OUT

T306

SO301

Coverage fL

MIXAM OUT

STEREO

DETFM

ANTENNA

IFFM IN

REG

IFAM IN GND

SD

TERMINAL

BAD PASS

IC301

1

2

3

4

5

6

7

TA7358AP

FILTER

BF301

FM FRONT END

AM IF

1 2 3

1 2

3 4

5

6

7

8

9

FM IF

FM IF

AM IF

FM IF

FM +B

CF303

Q306

CF302

T351

CF352

T304

TP301

+5V

Q302

FM +B

VT

L302

VD303

L303

+5V

FM ANT.

FM OSC.

VD302

FM RF

FM Band

PLL(TUNER)

IC302

LC72131

1

VSS AOUT

3

4

5

6 PD

7

VDD 8

Coverage fL

22

21 20

19

18

17 1

FM +B

OUT

AIN

X352

X

MUTE

INX

CE

DI

CL

DO

FM

4.5MHz

DISPLAY PWB

LCD701

LCD DISPLAY

1

4

5

38

4

1

100

67

5

VLC3

COM0

COM3

SEG0

SEG33

CLID_DW

6

VLC2

CLID_UP

CLID_PRO

7

VLC1

8

VDD

FAN

9

OSC2

CD_STB

X701

10 OSC1

IC701

AMP_DEC

11 VSS

LIGHT

8MHz

12 XI

IX0038SJ

DIMMER

X702

MOT_DEC

13 XO

SYSTEM MICROCOMPUTER/

SW711~713

32.768kHz

14 MMOD

FL DRIVER

VD_DI

SW718

15

VREF–

SW721,722

VD_DO

VREF+

SW725~727

24

ACK

PWB

CNW707

USWD_5R6V

RESET

POWER

STOPSYS

REMOCON

DI

DO

CL

CE

SURR

P–STB

P–MUTE

CD+B

STEREO

SD

CNS707

SW709

16

CLID_SW

BUSY

SW710

17

KEY1

CLID_OUT

1

1

D_GND

18

KEY2

STB

P_CONT

TO

POWER

2

2

47

P–CONT

B-LIGHT

3

3

32

37

38

39

25

26

27

34

43

44

45

46 49 50

4

TO

MAINPWB

1

RESET

CNS652

2

Q701

Q702

Q703

LAMP PWB

RX701

Q708

SENSOR

REMOTE

A_24V

LMP701

SWITCHING

Q709

GND

Q707

5V

Q706

SWITCHING

Figure 22 BLOCK DIAGRAM (3/6)

– 22 –

Image 22

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-OFF CD 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