Commodore 128 Introductory Manual page 19

The READY. message then
appears with the cursor, the
fl ashi ng square block, below
this. The computer is now in
C128 Mode. The disk drive can
then be switched on as
described in the user manual for
that piece of equipment.
If there is no picture, adjust the monitor display according to the
instructions given in the user manual for that monitor. If you are using a TV
set, it must be tuned to the frequency of the C128. If you then cannot
obtain a picture or the correct messages are not displayed , switch the
computer off and then on again . If the computer still fails to work correctly,
consu lt your dealer.
The Trouble Shooting Chart shown on the fo llowing pages lists some of the
more common problems and tells you how to correct them .
WARNING
NEVER block the ventilation slots on the top of the computer.
Doing so causes overheating which may result in system failure.
NEVER place fluids on or near the computer. Liquid spilled into
the computer causes it to fail.
13