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
Summary of Contents for 190V7
Page 7: ...19 LCD Color Monitor 190V7 7 ...
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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 ...
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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 ...
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Page 53: ...19 LCD Color Monitor 190V7 53 e Until appears the follow Fig writer completed ...
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Page 58: ...19 LCD Color Monitor 190V7 58 d Unit appears the following Fig writer completed ...