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24” LCD Color Monitor BenQ M2400HD
52
Power Board
No power
Check CN902 PIN5.6 = 5V
Check AC line volt 110V or 220V
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin8 of IC901
Check R904, R905, Change IC901
Check the auxiliary voltage is bigger than
2) Check R909/D901/C908 circuit
Check D908/D906/D907/ZD921/ZD922/Q903/ZD902
OK
Check IC901
NG
NG
Summary of Contents for M2400HD - 24" LCD Monitor
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Page 55: ...24 LCD Color Monitor BenQ M2400HD 55 PCB LAYOUT Main Board h t t p w w w w j e l n e t...
Page 56: ...24 LCD Color Monitor BenQ M2400HD 56 Power Board h t t p w w w w j e l n e t...
Page 57: ...24 LCD Color Monitor BenQ M2400HD 57 h t t p w w w w j e l n e t...