Philips 170S8FS/00 - Repair Flow Chart; 11.1 Main Board Fault Diagnosis

46
HUDSON 8
11. Repair Flow Chart
11.1 Main Board
(1). No Power
No power
Press power key and look
if the picture is normal
Please reinsert and make sure
the AC of 100-240 is normal
Reinsert or check the
Adapter/Inverter
section
X201 oscillate waveforms
are normal
Replace D301, U301 or
U304
Replace U203
Replace X201
OK
OK
OK
NG
NG
NG
NG
Measure U301 PIN2=3.3V
Measure U304 PIN2=1.8V
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