Philips 220VW9FB/97 - Page 47

(2) W / LED, No Backlight
Check CN902 pin4 = 16V
NG
OK
Check adapter or MB
Check ON/OFF signal
Check Interface board
NG
OK
Check IC801 PIN2=5V
NG
OK
Check Q801 and ZD801
Check IC801 PIN1, 15 have the output of square wave at short
NG
OK
Change IC801
Check Q805 and Q806 PIN5, 6, 7, 8 have the output of square wave at short time.
NG
OK
Check Q805, Q806
Check the output of T801
Check connecter & lamp
OK
NG
Change T801
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