Specifications

When you turn on your
computer in C128 mode,
using a 40-column display
the screen display should
look like this:
■
Entering C128 Mode—80 Columns—with the Computer
OFF
1. Make sure you are using a properly con
nected RGBI monitor (color or monochrome).
If you are using a 1902 dual monitor make
sure the monitor screen display is set for
RGBI (on the video switch) and POS DIGITAL
(on the RGBI switch on the back.)
2. Check that CP/M disk is not in the disk drive.
3. Depress computer 40/80 key.
4. Press computer ON/OFF switch.
Here is a sample 80-column display:
Switching between 40 and 80 Columns in
C128Mode
With a dual monitor like the Commodore 1902,
or with two separate 40- and 80-column moni
tors you can switch back and forth between 80
and 40 columns, even while the computer is
running. To make the change, you press and
release the ESC (ESCape) key; then press the X
key.
Leaving C128 Mode
You can leave C128 mode either by turning off the computer, or by
entering C64 or CP/M mode. See "Entering C64 Mode" and "Enter
ing CP/M" for instructions.
Remember—you must SAVE what you're working on in C128 mode
before you switch to another mode. If you don't your C128 mode
work will be lost when you switch modes.
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