19” LCD Color Monitor 190V7
46
Power/Inverter Board
No power
Adapter Board
Check CN951 pin 6/7 = 12V?
Check AC line volt 100-240V
Check AC input
Check the voltage of C907 (+)
Check bridge rectified circuit and F901 circuit
Check start voltage for the pin 8 of IC901
Check R907 and IC901
NG
Check the auxiliary voltage is bigger than
10V and smaller than 20V
Check IC901, D926, T901
OK
Check D931, D935, IC902, IC941, ZD975
OK
NG
NG
OK
OK
NG
NG
Summary of Contents for 190V7
Page 7: ...19 LCD Color Monitor 190V7 7 ...
Page 9: ...19 LCD Color Monitor 190V7 9 ...
Page 10: ...19 LCD Color Monitor 190V7 10 ...
Page 13: ...19 LCD Color Monitor 190V7 13 4 2 Factory Preset Display Modes ...
Page 14: ...19 LCD Color Monitor 190V7 14 4 3 Pixel Defect Policy ...
Page 15: ...19 LCD Color Monitor 190V7 15 ...
Page 16: ...19 LCD Color Monitor 190V7 16 ...
Page 17: ...19 LCD Color Monitor 190V7 17 5 Block Diagram 5 1 Monitor Exploded View ...
Page 21: ...19 LCD Color Monitor 190V7 21 5 3 2 Inverter Power Board ...
Page 29: ...19 LCD Color Monitor 190V7 29 7 PCB Layout 7 1 Main Board 715G1767 1 ...
Page 30: ...19 LCD Color Monitor 190V7 30 ...
Page 31: ...19 LCD Color Monitor 190V7 31 ...
Page 32: ...19 LCD Color Monitor 190V7 32 7 2 Power Board 715G1813 1 ...
Page 33: ...19 LCD Color Monitor 190V7 33 ...
Page 34: ...19 LCD Color Monitor 190V7 34 7 3 Key Board 715G1755 1 ...
Page 40: ...19 LCD Color Monitor 190V7 40 Fig 13 Fig 14 ...
Page 42: ...19 LCD Color Monitor 190V7 42 ...
Page 49: ...19 LCD Color Monitor 190V7 49 ...
Page 53: ...19 LCD Color Monitor 190V7 53 e Until appears the follow Fig writer completed ...
Page 55: ...19 LCD Color Monitor 190V7 55 ...
Page 58: ...19 LCD Color Monitor 190V7 58 d Unit appears the following Fig writer completed ...