ViewSonic VG181 - Page 43

ViewSonic Service Manual
July 2000 - Version 1.0 VG181
TROUBLE SHOOTING
R, G, B Is Not DispLAYED CORRECTLY
1. Check video
i 7
Input signal good 7 2. Check host's setting
1. Check resistor array (U15 to
U1& US)
2, Check U1 if digital
3. Check paraltel restor (U1 to P41)
if digital
4. Check U9 if analog
5. Check R, G, B signal between
US and P2 between U9 and P2
U15 input correct ?
1. Check resistor array (U45 to
U32 & U33)
2. Check U15
LVDS input correct ?
1. Check U27 & U33
2. Check power of LVCC
3. Check voltage of R61 & R63
LVDS output correct 2
1, Is J6 connected good 7
2. 1s pane) working ok ?
Page 41
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