Combo-Led Trouble Shooting; Set Dead Or Stand By - Philips 32PFL3738/V7 Service Manual

10. COMBO-LED TROUBLE SHOOTING

A.) Set Dead or Stand By
First confirm the AC power supply
switch is OK. And then check RED
LED is ON
Check if 24VSTB supply at N501 is
OK or not.
Check if +5VSTB supply is OK or
not.
Check Regulator Voltage N503
3.3V STB is OK or not.
Check al working voltages are
coming at micon V59, Flash IC
N403. Check if SW loading is
possible
If all the working conditions are
normal, but still the chassis can not
power ON, the please try to replace
the main chassis..
Normal
Normal
Normal
Normal
Normal
Abnormal
Abnormal
Abnormal
Abnormal
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