48 Operations Guide
Light Pen Connector
Pin No.
1
2
3
4
5
6
Signal
-Light
Pen
Input
-{key)
not
used
-Light
Pen Switch
---GND
-+
5 Volts
-+
12 Volts
Due
to
the
high
persistence
of
monochrome
display, a light
pen
will
not
work
on
a
Commodore
1901 compatible
monochrome
monitor.
RF Modulator Interface
Pin No.
1
2
3
4
Signal
-+
12 Volts
-{key)
not
used
-Composite
Video
Output
(NTSC)
---GND
Composite 3-Pin BERG Connector
Pin No. Signal
1 ---Ground
2
7
---Ground
-Composite
0.8 Diagnostics and Troubleshooting
0.8.1 Troubleshooting
If
you
have any
problems
with
any
of
the
functions
of
your
ATI
Graphics Solution adapter, review
the
following:
Installation Related Problems
Make sure that:
-you
have installed
the
AT!
Graphics Solution properly
with
correct
switch
settings
(see
Section D.2.I, Figure D-2).
-you
have
set
the
switches
on
your
computer
according
to
the
switch settings
of
your
ATI
Graphics Solution (Le.
if
your
switches are
set
for Color/Graphics mode,
your
computer's
switches are also
set
for color). For
the
ATI
Graphics Solution in
Color/Graphics
or
Emulation Modes,
use
the
color
setting. For
the
ATI
Graphics Solution in
Monochrome
Graphics Mode, use
mono
setting. Refer
to
Section D.2.I for details.
-you
are using
the
correct
monitor
for
the
display
mode
you
are using (e.g.,
color
monitor
with
Color/Graphics mode,
monochrome
monitor
with
Monochrome
Graphics
or
Emulation
modes).
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