
22" LCD Color Monitor ASUS VK222U/S
40
8.2.2 Power/Inverter Board
1.) No power
Check CN902 pin4, 5 = 12V
Check AC line volt 110V or 220V
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin8 of IC901
Check R904, R932, R933 and Change IC901
Check the auxiliary voltage is bigger than
Check IC903, IC904, Q901, ZD921, ZD922, D915, D916
Check IC901
NG
NG
OK
Summary of Contents for VK222S
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Page 8: ...22 LCD Color Monitor ASUS VK222U S 8 for VK222S h t t p w w w w j e l n e t ...
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Page 32: ...22 LCD Color Monitor ASUS VK222U S 32 7 2 Power Board 715G2538 4 h t t p w w w w j e l n e t ...
Page 33: ...22 LCD Color Monitor ASUS VK222U S 33 h t t p w w w w j e l n e t ...
Page 34: ...22 LCD Color Monitor ASUS VK222U S 34 7 3 Audio Board 715G2767 1 h t t p w w w w j e l n e t ...
Page 35: ...22 LCD Color Monitor ASUS VK222U S 35 7 4 Key Board 715G2900 1 h t t p w w w w j e l n e t ...
Page 45: ...22 LCD Color Monitor ASUS VK222U S 45 10 Monitor Exploded View h t t p w w w w j e l n e t ...