Service manual

Acer Acer –LCD-X193HQ
48
04 Troubleshooting
4.1 No Power & LED Off
No power
Check primary
rectifier voltage
Check IC802,
C805, T801,
Check
circuit if
short
Check F801, P801,
RT801, D801
Check pin2 of
IC802 voltage
about 16V
CheckC815,D806,
Check pin1 of IC802
voltage about 9.0V
Check primary OVP,
OLP and secondary
feedback, OVP
circuit
Check pin1 of IC802
voltage is below
1.5V
Check R803, R807,
R824, R825,R812
END