Philips 220E1SB/00 Service Manual page 43

(2) W / LED, No Backlight
Check ZD901 ＝16V
Check ON/OFF signal
Check IC801 PIN6, PIN10=16V
Check IC801 PIN8, 9 have the output of square wave at short time
Check Q805 and Q806 have the output of square wave at short time.
Check the output of PT801
Check connecter & lamp
NG
OK
NG
OK
NG
OK
NG
OK
NG
OK
NG
OK
Check adapter or MB
Check Main Board
Check ZD802, ZD803
Change IC801
Check Q805, Q806
Change PT801
Meridian 1
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