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Commodore A 520 - If Your Have a Problem; Trouble-Shooting Chart

Commodore A 520
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8 English
If you have a problem...
If the screen display is not clear, try adjusting the controls on your
television set or monitor. You may not get a picture at all if your control
settings or connections are not correct. In such a case you should
check all your settings and connections. Often the TV may simply be
tuned to the wrong channel, or you may have the brightness turned
off.
The Troubleshooting Chart shown on the following page lists some
of the more common problems and tells how to correct them.
Trouble-Shooting Chart
Symptom Cause Remedy
Indicator light not 'ON' Computer not turned
ON
Make sure power switch
is in ON Position
Computer not plugged
into wall outlet
Check power socket for
loose or disconnected
power cable.
Check connection with
wall outlet.
No picture (Monitor) Monitor not connected Check monitor connec-
tions.
No picture (TV) Incorrect hookup Check computer hookup
to VHF antenna terminal;
See page 6/7 for details.
Cable to TV not
plugged in
Check output cable con-
nection to TV.
Picture with poor or no
color
Poorly tuned color
controls
Adjust color controls on
TV or monitor
Sound with excess
background noise
Volume too high Adjust volume.
Picture OK, but no
sound
Volume too low Adjust volume.

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