19” LCD Color Monitor 190S7
45
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 190S7
Page 7: ...19 LCD Color Monitor 190S7 7 Back View ...
Page 9: ...19 LCD Color Monitor 190S7 9 ...
Page 10: ...19 LCD Color Monitor 190S7 10 ...
Page 13: ...19 LCD Color Monitor 190S7 13 4 2 Factory Preset Display Modes ...
Page 14: ...19 LCD Color Monitor 190S7 14 4 3 Pixel Defect Policy ...
Page 15: ...19 LCD Color Monitor 190S7 15 ...
Page 16: ...19 LCD Color Monitor 190S7 16 5 Block Diagram 5 1 Monitor Exploded View ...
Page 20: ...19 LCD Color Monitor 190S7 20 5 3 2 Inverter Power Board ...
Page 28: ...19 LCD Color Monitor 190S7 28 7 PCB Layout 7 1 Main Board 715G1767 F ...
Page 29: ...19 LCD Color Monitor 190S7 29 ...
Page 30: ...19 LCD Color Monitor 190S7 30 ...
Page 31: ...19 LCD Color Monitor 190S7 31 7 2 Power Board 715G1813 1 ...
Page 32: ...19 LCD Color Monitor 190S7 32 ...
Page 33: ...19 LCD Color Monitor 190S7 33 7 3 Key Board 715G1755 1 ...
Page 39: ...19 LCD Color Monitor 190S7 39 Fig 13 Fig 14 ...
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Page 52: ...19 LCD Color Monitor 190S7 52 e Until appears the follow Fig writer completed ...
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Page 57: ...19 LCD Color Monitor 190S7 57 14 codes for example ...
Page 58: ...19 LCD Color Monitor 190S7 58 d Unit appears the following Fig writer completed ...