If the point to check does not correct the symptoms, please contact your local Service center for assistance.
Self servicing can be hazardous.
Symptom
Point to check
See
Page
There is no picture and the power-indicating lamp
is off.
Check to see that the power cable is properly connected.
Press the main switch.
17
The message “No cable connected” or “Going to
sleep” is displayed.
There is no picture and the power indicating lamp
lights orange.
No sync signal is detected.
Check that the signal cable is properly connected.
Make sure that the computer, imaging equipment, etc., is turned
on.
Make sure the computer is not in power-save mode.
Ensure that the input selection matches the connection terminal.
1
5
The message “Invalid Scan Freq.” is displayed.
An input signal is received abnormally.
Ensure that the input signal matches the monitor specifications.
Check to see that the signal cable is properly connected.
1
5
The power indicating lamp is lit normally but there
is no picture.
Check the contrast and brightness settings (adjust them for
higher contrast and brightness).
Check to see that the signal cable is properly connected.
2
0
1
5
The display image appears slanted.
Text displayed across the screen appears
vertically streaked, with the characters in vertical
columns blurred.
Adjust the clock frequency and the phase. (Adjust the clock
frequency first, the dot clock phase next.)
(RGB input)
21
1
5
Text displayed across the screen appears
blurred.
A fine pattern flickers when displayed on the
screen.
Adjust the clock phase till the desired clarity is obtained.
(RGB input)
2
1
1
5
The remote control does not work.
Ensure that the batteries in the remote control are inserted with
the correct polarity.
Check to see that the batteries in the remote control are
functional.
1
2
TROUBLESHOOTING
Symptoms
WARNING
! No Sync. Signal
! Invalid Scan Freq.
1
ViewSonic VPW42
00/4210
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