19” LCD Color Monitor 190V7
44
(2). No Picture
No picture
OK
OK
NG
NG
Measure U701 PIN2=3.3V,
U702 PIN2=1.8V?
Replace U701, U702
X401 oscillate waveforms are
normal
Replace X401
Check if the sync signal from
computer is output and video cable
is connected normally
Input the sync signal of
computer, or change
the cable
Replace U401
NG
OK
Содержание 190V7
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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 ...