Philips 191EW9FB/00 Service Manual page 40

40 40 HUDSON 9
(2) W / LED, No Backlight
Check CN902 Pin4, 5 = 5V
Check ON/OFF signal
Check IC801 PIN12=12V
Check IC801 PIN8, 9 or PIN10, 11 have the output of square
Check Q809 have the output of square wave at short time.
Check the output of T801
OK
Check connecter & lamp
OK
NG
OK
NG
OK
NG
NG
OK
NG
OK
NG
Check adapter or MB
Check Main Board
Check R804, Q808
Change IC801
Check Q809
Change T801