Lenovo D170 Wide Service Manual page 35

17" LCD Color Monitor
(2) Inverter Board
No Power
Check ON/OFF signal
Check IC801 pin12=12V
Check IC801 PIN5, 6 have the output of square wave at short
Check Q802 PIN1, 3 have the output of square wave at short time.
Check the input wave of pin1 & pin3 & pin4 & pin6 for T801
Check the output of T801
Check connecter & lamp
Check F801 = 12V
OK
OK
OK
OK
OK
OK
NG
OK
NG
Check adapter or MB
NG
Check Interface board
NG
Change Q805 or Q808
NG
Change IC801
NG
Check Q802
Check C839, C838
NG
Change T801
35
Lenovo D170 Wide