35
D-A03
No
Recording/playback Operation
Set to Rec/play Test Mode after confirming audio output at playback with low ref. disc
insertion.
No recording from the start address.
Isn't the disc set to record prohibited position ?
Yes
Is there RF waveform at TP1201 or 1pin of
IC1201(Mecha.) when playback after recording ?
Is there any level change between recording and playback
at 3, 26, 39pin of IC1401?
Check IC1401 peripherals.
Is there RF waveform at 50pin of IC1201(Mecha.) ?
Check soldering of IC1201(Mecha.).
Check IC1300~1302, and around CN1300(Mecha.).
No
NoNo
Yes
No
Yes
Yes
Is there output waveform at 22, 24pin of CN1501 when
LINE in recording in normal mode ?
Check Main P.W.B.
Is there input waveform at 3, 5pin of IC1701 ?
Check the connection between IC1701 and CN1501.
Check IC1701 peripherals, 70~73pin of IC1201.
NoNo
NoNo
Yes
Yes
No Rotation of Spindle Motor
NoNo
Yes
Yes
NoNo
No
Yes
Yes
No
No Rotation of Sled Motor
Yes
No
In step 4 of the test mode Auto Pre-adjust Mode, is there
waveform at 24, 25pin of IC1201 ?
Is there waveform at 9, 10pin of IC1601 and 5, 6pin of
CN1402 ?
Replace the spindle motor.
Check 24, 25pin of IC1201 and soldering/parts around it.
Check soldering of IC1601, CN1402, and Mecha. SW PWB.
Is there any change at 22, 23pin of IC1201 with ,
buttons ?
Is there any change at 14, 15pin of IC1601 and 3, 4pin of
CN1401 with , buttons ?
Is there any voltage change at +, - terminals of the sled
motor with , buttons ?
Replace the sled motor.
Check waveform at 22, 23pin of IC1201 and soldering/
parts around it.
Check soldering of IC1601, CN1401.
Check soldering of the wiring, if not cut out, to the sled motor.
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