Repair Flow Chart - Philips 160E1SB/93 Service Manual

36 36 Meridian 1

11. Repair Flow Chart

11.1 Main Board
(1). No Power
No power
Press power key and look if the
picture is normal
NG
Please reinsert and make sure
the AC of 100-240 is normal
OK
Measure U404 PIN2=3.3V
OK
X401 oscillate waveforms are
normal
OK
Replace U401
NG
Reinsert or check the
Adapter/Inverter section
NG
Check C426 and C427
NG
Replace X401