LG Flatron L1918S User Manual

22
Replace IC801
Replace Q805/Q806
NO
NO
NO
NO
YES
YES
YES
YES
6. RASTER
NO Raster
(Lamp Off)
Check C811 (+)
=
12V
Check ON/OFF
si
g
nal
CheckIC801 pin
2=5V?
Check IC801
Pin1/pin15 have the
output of sawtooth
wave at short time
Check Q805/Q806
pin5/pin8 is 12V?
Check PT801/PT802
pin7/pin8= 650V?
Check power section
Check Interface section or
main board
Check Q801 Q802 Q803
ZD801
Check IC801 pin 5/pin6
Cut all the pin connector of
Q805/Q806, check C811 (+) =12V?
Unplug backlight connector wire,
check PT801/PT802 pin7/pin8 =
650V?
Check Q801 Q802
Replace PT801/PT802
Replace backlight
NO
NO
NO
NO
NO
YES
YES
YES

LG Flatron L1918S Specifications

General

Brand	LG
Model	Flatron L1918S
Category	Monitor
Language	English