Vcr Electrical Troubleshooting Guide; Power(Smps) Circuit - Philips DVP3350V/01 Service Manual

VCR ELECTRICAL TROUBLESHOOTING GUIDE

1. POWER(SMPS) CIRCUIT

1-1. No 5.3VA
No 5.3VA
YES
Is the FR101
Normal?
YES
Is the BD101
Normal?
YES
Is the R101
Normal?
YES
Is Vcc
(9V ~ 18V) supplied
to IC101 Pin2?
YES
Are the D125
normal?
YES
Is there
about 2.5V at the
IC103 Pin1?
YES
Is the D123
normal?
YES
Is the D124
Normal?
YES
Is the D121
Normal?
YES
Power Line of Main
PCB is short
NO
Replace FR101
(Use the same ICW)
NO
Replace the BD101
NO
Replace the R101
NO
Is the D102 normal?
NO
Replace the D125
NO
Replace the IC103
NO
Replace the D123
NO
Replace the D124
NO
Replace the D121
3-3
NO
Check or Replace the D102