Aiwa xc-rw700 Service Manual page 73

TROUBLESHOOTING - 10/26
QQ
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Tray operating is abnormal.(CDP)
(Tray open/close doesn't work)
Is threre Tray control signal intput?
(IC501 pin23)
YES
Is three Tray drive voltage output?
(IC301 pin14, 15)
YES
Check the Tray Connector(PN609).
Check the Motor Line and Motor.
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8
Check the connection of IC301 pin 16.
NO
Replace the IC301(M56788FP).
Check the communication line between
IC301 and IC501(MICOM).
Is TRAY_MUTE
signal"L"?(IC301 pin25)
YES
When PN609
is open, Is there Tray drive
signal output?
YES
Q Q
3 6 7 1 3
.
-73-
9 4 2 8
Check the connection of IC501
NO
pin 32.
Replace the IC501.
NO
Replace the IC301(M56788FP).
1 5 0 5 8 2 9 9 4
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9 9
2 8 9 9