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23" LCD Color Monitor
Dell SP2309Wc
56
9.2.2 Power/Inverter Board
No power
Check bridge rectified circuit and F901 circut
1) Check IC901
2) Check IC901 over current protect circuit
Check CN902 pin7,8,9= 5V
Check the voltage of C903(+)
Check start voltage for the pin3 of IC901
Check R903,R904,R905 and Change IC901
NG
Check the auxiliary voltage is bigger than
10V and smaller than 20V
NG
NG
NG
Check Q900, T901, D920, D921, IC902,IC921,
Q923,L922,L921, ZD922, ZD921
Check IC901 pin8 PWM wave
Check IC901,D901,D902
NG
OK
NG
OK
OK
OK
OK
Check AC line volt 110V or 220V
Check AC input
Содержание SP2309Wc
Страница 24: ...23 LCD Color Monitor Dell SP2309Wc 24 ...
Страница 25: ...23 LCD Color Monitor Dell SP2309Wc 25 4 5 Definition of Pixel Defects 4 5 1 Spec of Pixel Defect ...
Страница 26: ...23 LCD Color Monitor Dell SP2309Wc 26 4 5 2 Optical Characteristics Failure Criteria 4 5 3 FOS Spec ...
Страница 35: ...23 LCD Color Monitor Dell SP2309Wc 35 The panel ...
Страница 48: ...23 LCD Color Monitor Dell SP2309Wc 48 8 PCB Layout 8 1 Main Board ...
Страница 49: ...23 LCD Color Monitor Dell SP2309Wc 49 ...
Страница 50: ...23 LCD Color Monitor Dell SP2309Wc 50 8 2 Power Board ...
Страница 51: ...23 LCD Color Monitor Dell SP2309Wc 51 8 3 USB Board ...
Страница 62: ...23 LCD Color Monitor Dell SP2309Wc 62 Step 2 click Load select program Bin file bring up Fig 4 Fig 3 Fig 4 ...
Страница 64: ...23 LCD Color Monitor Dell SP2309Wc 64 Step 5 When appear Verify OK writer finished as shown Fig 7 Fig 7 ...
Страница 65: ...23 LCD Color Monitor Dell SP2309Wc 65 12 Exploded View ...