Track search failure, Sled motor operation failure | Sharp XL-3000V

• Track search failure

Does the sled motor run in FF/REW state when the SERVO TEST MODE "STEP1" is set?

Yes

Is the following wave output to the pin 49 (TRO) of IC802 during track search in normal playback?

Yes

TRO

Is the following wave output to the pins 12 (TEO) of IC801 during track search in normal playback?

Yes

TEO

TEI

TEZI

Is the above wave output to the pins 46 (TEI) and 47 (TEZI) of IC802 during track search in normal playback?

Yes

Is the following wave output to the pin 41 (RFZI) and 42 (RFRP) of IC802 during track search in normal playback?

Yes RFRP

RFZI

Normal.

• Sled motor operation failure.

Is following sled feed signal output the pin 53 (FMO) of IC802

when FF /REW key is pressed after the CD TEST MODE "STEP 1" is set?

Yes		FF	REW
	FMO

Is following sled feed signal output the pins 3 and 4 of IC804

when FF /REW key is pressed after the CD TEST MODE "STEP 1" is set?

Yes	FF	REW
Yes

SL ±

Is sled feed signal output the pins 1 and 2 of IC804?

Yes

Is sled feed voltage applied between both terminals of sled motor?

Yes

Check the CD mechanism (periphery of sled motor).

If the sled motor does not run when DC2.0V is applied to both terminals of sled motor, the sled motor is faulty.

• Sled servo failure.

Is following sled signal output the pin 53 (FMO) of IC802 during playback?

Yes

FMO

Normal.

XL-3000V

Check as stated in item "SLED MOTOR OPERATION FAILURE".

No

IC802 failure.

No

	Check the PWB pattern between pin 49 (TRO) of IC802 and pin
No	Check the PWB pattern between pin 49 (TRO) of IC802 and pin
No	19 of IC804.
	19 of IC804.
	Check the PWB pattern between pins 17 and 18 of IC804 and
	Check the PWB pattern between pins 17 and 18 of IC804 and
	Optical pickup.
	If OK. Optical pickup failure.


	Check the PWB pattern between pin 12 (TEO) of IC801 and pins 46
No
No	and 47 of IC802. If OK. IC801 failure.

	No	Check the PWB pattern between pin 17 (RFO) and 18 (RFIS), 19
	No	(RFRP) of IC801 and pins 41 and 42 of IC802. If OK. IC801 failure.

C802 is faulty.

No

	No	Check the PWB pattern between pin 53 of IC802 and pins 3 and 4
	No	of IC804.
		of IC804.

Check the peripheral parts of IC804. If OK, IC804 is faulty.

No

Check the CNW803/CNS803.

No

IC802 is faulty.

No

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Image 47

Sharp XL-3000V service manual Track search failure, Sled motor operation failure, Sled servo failure

Contents

Model XL-3000V Contents Voltage Selection AC Power Cord and Plug Adaptor Specifications Rear panel Names of PartsFront panel Display Remote control Setting the Clock System Connections Setting the AC voltage selector Connecting the AC power lead Listening to a CD LED PWB Disassembly PWB 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 remove FM Mute Level AdjustmentSetting the Test Mode FM Detection Video PWB-D IC15VBEX Test Video CD Video OUT Disc Checking SettingChecking of vector scope waveform Checking the black-and-white level Details of tuner test mode Turning on the test modeTuner Test Mode Test Outline of tuner radio test mode LCD Test Mode Test Electronic volume Test Mode TestTimer 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-OFF SPIN/SLED Driver Switch PWBCD Motor PWB FOCUS/TRACKING PWB Power PWB-BRminal Main PWB Lamp PWB Display PWB Tuner PWB IC16V IC10VIC15V Video CD Decoder Video CD Encoder IC11VBuffer AMP Tuner PWB-A2 CNS7 From Terminal PWB-A4From Video PWB-D Volume Video SignalCD Signal FM Signal SERVO/SIGNAL Control CD LID Motor Driver CD Motor PWB-C Schematic Diagram 5/10 CNP307 AM Signal FM SignalTuner PWB-A2 Main PWB-A11/2 System Display PWB-A3Lamp PWB-A7 Schematic Diagram 8/10 Video CD Decoder Video PWB-DIC10V ROM 256Kx16 Buffer AMP Video SignalCD Signal XL-3000V To 15 are waveform numbers shown PWB-A3 Spindle MERAssis From Display To Main PWB-A1 AntennaOhms Pink To MainTo Video IC16V Video PWB-D TOP ViewVideo PWB-D Bottom View IC14V Waveforms of CD Circuit Parts Code UDSKA0004AFZZ TroubleshootingWhen the CD does not function Operating Failure HF ErrorFailure Sled Motor Focus failure Laser failure DMO Focus servo sawtooth wave failureSpindle motor clv servo failure RFI HF errorNo sound TEI Tezi Sled servo failure Track search failureSled motor operation failure Pin No Port Name Function IC401 VHiLC75342M-1 Function/Volume Equalizer LC75342MFunction Table of IC Test VSS Pin No Terminal Name Input/Output Function SEG25-SEG0 IC701 RH-iX0038SJZZ System Microcomputer/FL driver IX0038SJ IC801 VHiTA2109F/-1Servo Pre Amp. TA2109F Pin No Port Name Input/Output Function IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 1/3Uhso HSO IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 2/3 IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F IC802 VHiTC9462F/-1 Servo/Signal Control TC9462F 3/3 CH1-IN-B CH1-OUT-ACH1-OUT-B CH1-IN-A IC14V 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 ES3883F IC15V VHiES3880F/-1 Video CD Decoder ES3880F Aclk AOUT/SELPLL0 Atclk ES3880F Memory LCD701 RV-LX0012SJZZ LCD Display For U.S.A. only IC15V IC10V RH-IX0041SJZZIC11V VHINJM4565M-1 IC14V RC-GZW228AF1V VCKYPA1HB102KVCKYPA1HF223Z RC-GZA227AF1C VCKYCY1EB563K RC-EZD107AF1AVCKYCY1EB104K RC-GZA227AF1A R621VRS-CY1JB223J R358VRS-CY1JB822J R359VRS-CY1JB182J R360VRS-CY1JB472JR393VRS-CY1JB102J R395VRD-ST2CD473J R607VRS-CY1JB682J QCNCW007RSJZZ QCNCM998DAFZZQCNCM037ESJZZ CNP801V QCNCW010MSJZZ HSY042SPK07 LX-WZ9006SJZZCPNLS1006SJ01 TSPC-0221SJZZ 302 PWB-A8 PWB-A6PWB-A5 PWB-A7 PWB-A3 Copyright 2001 by Sharp Corporation