AOC i2252VWH - No Backlight Troubleshooting

Service Manual AOCi2252VW
43
No Backlight of panel
Check flow chart for the
Inverter No Backlight
After Power off,check
C801/C802？Q824?
Check ON/OFFsignal
Check volta
g
e of F801-12V？
Open F801, voltage-12V
Return check Power
Check main board
After Power off,check
Q805/Q808/R804/C825
Check IC801-6pin RT waveform?
Check aroud component
Re
p
lace IC801
Check IC801-out9/10pin-?
Check Q802 waveform?
Check T801 out voltage?
Check feedback circuit
Check /Replace
C801-C803
Check around component
Replace device
OK
NG
OK
OK
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
NG
NG
Check IC801 -12pin=12V
pinRT waveform?