35
2.) No Backlight
Check Q801, Q804, Q811, Q812,
Q802
Check CN902 pin4, 5 = 12V
Check the adapter and F801
Check ON/OFF signal and the pin 12 of IC801 is 12V
Check main board or change ON/OFF signal
Check the pin5 of IC801 have saw tooth wave
Change IC801
Check Q802 PIN5, 6, 7, 8 have the output
of square wave at short time.
Check the output of T801
Change T801
Check connecter & lamp
OK
OK
OK
NG
OK
NG
NG
NG
OK
NG
OK
Check the PWM wave from the pin9,10 of IC801
Check IC801
NG
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