Star Tech Journal

S•TJ JANUARY 1982 17
EXIDY
"VENTURE"
AUDIO/COLOR * BOARD
MODIFICATIONS
There is a modification recommended
for the "Venture" audio/ color board.
This is the board mounted on top of
the main logic board. The modification
is as follows:
1. Cut the trace to pin 5 on the
7 4 LS 7 4 at position 6D.
2. Jump the cut trace to 6D pin 6.
This modification should be done. If
not, there is the possibility that you
may at times lose various sounds from
your audio output. These sounds
include:
1. The "Hallmonster" when he
crunches the "Winky".
2. "Winky" going up to get his bow.
3. The sound of "Winky" going down
the steps.
MONITOR "JIGGLE"
AUDIO* INTERFERENCE
Does your monitor display seem to be
affected by the audio output? For
example, the louder the audio is, the
more the picture on the CRT seems to
be affected with a "jiggle". If so, read
on ...
The speaker wires on some games are
tie-wrapped incorrectly to the main
harness. Remove the tie-wraps that
hold the speaker wires to the monitor
harness and main harness and move
the speaker wires away from these
harnesses, tie wrap the monitor harness
and other back together for neatness
and also twist the speaker wires
together. Position the speaker wires
away from the monitor harness and
other harnesses and you should no
longer have any video interference
caused by the audio.
6D
74LS74
Move speaker wires away from the
monitor harness.
(COURTESY OF EXIOY'S TECHNICAL NEWSLETTER "ZERO DOWNTIME")