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ELECTRICAL TROUBLESHOOTING GUIDE
1. µ-COM Circuit
A. No Power
YES
Does Logo appear
on the screen?
YES
OK
1
Is oscillation of
X501 normal?
YES
Are IC501 normal?
YES
A
DVD PART
YES
Does no DISC appear?
NO
NO
NO
Check the oscillation
NO
Check short.
OK
Replace IC501
POWER ON
NO
Does Hello
appear at FLD?
Is PDV02
NO
connected normally?
Reconnect it.
Refer to VCR Part
Check short
Replace IC301.
3-52
YES
Check power.
(Refer to power)
If power is
normal
YES
Is PDV02 Pins8, 9,
10, 11 normal?
NO
A
The waveform
NO
NO
on AD(0~21) of IC501
normal?
YES
NO
Are IC301 Pins5, 26 normal?
YES
Replace Main B/D.
1
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