Philips 220E1SB/00 - Repair Flow Chart

39
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
Please reinsert and make sure
the AC of 100-240 is normal
Reinsert or check the
Adapter/Inverter section
X401 oscillate waveforms are normal
Check C706, C707 and U703
Replace U401
Replace X401
OK
OK
OK
NG
NG
NG
NG
Measure U703 PIN2=3.3V