19” LCD Color Monitor 190V7
45
(3). White screen
(4). Keypad Board
White screen
Measure Q406 base
is high level?
X401 oscillate
waveform is normal
Check Q406, Q405 is broken
or CN406 solder?
Check Correspondent
component.
Replace Panel
Check Correspondent
component.
Replace U401
OK
OK
Replace X401
OK
NG
NG
NG
NG
Check reset circuit of
U401 is normal
OK
Содержание 190V7
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Страница 17: ...19 LCD Color Monitor 190V7 17 5 Block Diagram 5 1 Monitor Exploded View ...
Страница 21: ...19 LCD Color Monitor 190V7 21 5 3 2 Inverter Power Board ...
Страница 29: ...19 LCD Color Monitor 190V7 29 7 PCB Layout 7 1 Main Board 715G1767 1 ...
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Страница 32: ...19 LCD Color Monitor 190V7 32 7 2 Power Board 715G1813 1 ...
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Страница 34: ...19 LCD Color Monitor 190V7 34 7 3 Key Board 715G1755 1 ...
Страница 40: ...19 LCD Color Monitor 190V7 40 Fig 13 Fig 14 ...
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Страница 53: ...19 LCD Color Monitor 190V7 53 e Until appears the follow Fig writer completed ...
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Страница 58: ...19 LCD Color Monitor 190V7 58 d Unit appears the following Fig writer completed ...