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Check C1 (+) =12V
NG
OK
Check F1/ D1/Q3/Q4or
D2/Q9/Q10
Check ON/OFF signal
Check Interface board
NG
OK
Check IC1 pin9=12V
pin9=12vvoltage of
C905(+)
NG
OK
Check Q1 or Q2
Check the pin1 of IC1 have saw tooth wave
NG
OK
Change IC1
Check MOSFET Q5/Q8 if has the output of square wave.
NG
END
Check Q6/Q7//D3 or
Q11/Q12 /D4
Check the resonant wave of pin2 & pin5 for T1/T2
NG
OK
Check the output of T1/T2
Check Q6/Q7/C5 or
Q11/Q12/C19
Check connecter & lamp
Change T1or T2
NG
OK
OK
Содержание EN9110
Страница 27: ...26 7 MECHANICAL OF CABINET FRONT DIS ASSEMBLY...
Страница 29: ...9 MAIN BOARD SCHEMATIC...
Страница 58: ......