Commodore 64 User Manual page 19

3. If your TV has a manual fine tuning knob, adjust the TV until you get
a clear picture.
4. You may also want to adjust the color and tint controls on the TV for
the best display. You can use the color adjustment procedure de-
scribed later to get everything setup properly. When you first get a
picture, the screen should appear mostly dark blue, with a light
blue border and letters.
If you don't get the expected results, recheck the cables and connec-
tions. The accompanying chart will help you isolate any problem.
TROUBLESHOOTING CHART
Symptom Cause
Indicator Light
not "On"
Computer not
Remedy
Make sure power
switch is in "On"
position
Power cable Check power socket
not plugged for loose or dis-
in connected power
cable.
Power supply Check connection
not plugged with wall outlet
in
Bad fuse in Take system to
computer authorized dealer
for replacement of
fuse
TV on wrong Check other
channel channel for
picture (3 or 4)
Incorrect
Computer hooks up to
hookup VHF antenna terminals
Video cable Check TV output
not plugged cable connection
in
Computer set Set computer for
for wrong some channel as TV
channel (3 or 4)
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