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23” LCD Color Monitor BenQ G2320HDB
55
W / LED, No Backlight
s
Check Inverter input =16V
NG
OK
Check adapter and ZD802, ZD803
Check ON/OFF signal
Check Interface board or main board
NG
OK
Check IC801 PIN 11=5V
NG
OK
Change ON/OFF circuit
Check IC801 PIN8/PIN9 PWM wave
NG
OK
Check IC801
Check Q805, Q806 Drain wave
NG
Check the output of PT801
Change Q805, Q808
Check connecter & lamp, feedback and protect circuit
OK
NG
Change PT801
OK
Summary of Contents for G2320HDB
Page 38: ...23 LCD Color Monitor BenQ G2320HDB 38 MAIN BOARD POWER BOARD...
Page 57: ...23 LCD Color Monitor BenQ G2320HDB 57 PCB LAYOUT Main Board...
Page 58: ...23 LCD Color Monitor BenQ G2320HDB 58...
Page 59: ...23 LCD Color Monitor BenQ G2320HDB 59 Power Board...
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