AOC e2450Swd

Service Manual e2450Swd
46
No Backlight of panel
Check flow chart for the
Inverter No Backlight
After Power off, check
C804/C811/Q805/Q806
Check ON/OFFsignal
Check voltage of C804-16V
Open C804 voltage-16V
Return check Power
Check main board
After Power off, check
R802\C806\C809
Check IC801—11pin=5V
Check IC801-3pin waveform?
Check aroud C809\Q802
Replace IC801
Check IC801-pin6-8-9-10-PWM?
Check Q805, Q806-Gate/Drain
Check PT801-out waveform
Check the lamps of panel
&connector, feedback circuit
Replace PT801
replaceIC801
Check ZD802/ZD803
R803/R804
Replace device
OK
NG
OK
OK
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
NG
NG