Troubleshooting; Power Supply - LG BH100 Training Manual

TROUBLESHOOTING

POWER SUPPLY

No .5.3VA
Is the F101 normal?
Is the BD101 normal?
Is the R101 normal?
Is Vcc (9V - 18V) supplied
to IC101 Pin2?
IS the D123 normal?
Is there about 2.5V
at the IC103 Pin1?
Is the IC102 normal?
Is the D124 normal?
Is the D127 normal?
Is the D128 normal?
Is the D121 normal?
Is the D122 normal?
Power line of main PCB is short
BH100 Blu-ray Player
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
TROUBLESHOOTING
Replace the F101 (Use the same fuse)
Replace the BD101
Replace the R101
Is the D102 normal?
Check or replace the D102
Replace the D123
Replace the IC103
Replace the IC102
Replace the D124
Replace the D127
Replace the D128
Replace the D121
Replace the D122
41
NO
Troubleshooting