Dvd Part; Dvd Electrical Troubleshooting Guide; Power Check Flow - Philips DVP3350V/01 Service Manual

DVD ELECTRICAL TROUBLESHOOTING GUIDE

1. POWER CHECK FLOW

A.
No 5V
Is
3.4VA section
working?
YES
Is 5V/M5V present at
collector of Q163, Q165?
YES
Replace
Q162, Q163, Q165.

DVD PART

NO
No 3.4VA
Check FR101
Is there a
DC voltage at Cathode
of D122,D123?
Replace
IC101, IC102, IC103.
3-59
B.
NO
NO
NO
YES
No 3.4VA.
Is
3.4VA section
working?
YES
Is 3.4V
present at emitter
of D123?
YES
Replace D123..
YES
Check D121~D124
and replace.