Sharp XL-3000V Checking of vector scope waveform, Checking the black-and-white level, Video OUT

Page 15

XL-3000V

Checking of vector scope waveform

Disc

Checking

Setting

Checking

 

 

 

Item

Track 2

VIDEO OUT

Set the phase of

Phase check

 

 

color burst signal

± 10°

 

 

(B) to 180°-360°

 

 

 

line.

 

 

 

 

 

(

Check that the setting is within the illustrated range.)

 

I

R-Y

 

 

 

V

 

 

 

 

 

 

cy

 

 

 

 

 

 

 

 

 

 

R

MG

Q

g

R

MG

 

 

 

 

 

YL

 

 

YL75%

 

b

 

 

 

 

 

 

 

 

 

75%

 

 

B-Y

 

U

 

 

B

 

 

 

B

 

 

 

 

yl

 

 

 

 

 

 

 

 

-Q

G

CY

 

 

G

CY

mg

 

 

 

 

 

 

 

 

 

[NTSC]

-I

 

 

[PAL]

 

 

 

 

 

 

 

 

 

 

 

 

Figure 15-1

 

 

Checking the black-and-white level

 

 

 

 

Disc

 

Checking

Checking Item

 

 

 

Track 16

 

VIDEO OUT

Output level

 

 

 

 

 

 

 

100 ± 10 IRE

 

 

 

 

100% Luminance

100IRE

40IRE

40IRE

Horizontal Interval

100% WHITE LEVEL

reference signal

 

Figure 15-2

– 15 –

Image 15
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 levelTurning 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 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 DecoderIC11V Buffer AMPVideo 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-A11/2Display PWB-A3 Lamp PWB-A7System 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 DisplayAntenna OhmsTo Main PWB-A1 To Main To VideoPink IC16V Video PWB-D TOP ViewVideo PWB-D Bottom View IC14VWaveforms of CD Circuit Troubleshooting When the CD does not functionParts Code UDSKA0004AFZZ Operating Failure HF ErrorFailure Sled MotorFocus failure Laser failureFocus servo sawtooth wave failure Spindle motor clv servo failureDMO RFI HF errorNo sound TEI TeziTrack 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 SEG25-SEG0 IC701 RH-iX0038SJZZ System Microcomputer/FL driver IX0038SJIC801 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 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