Star Tech Journal

27
STAR*TECH JOURNAL/JANUARY 1984
"Rally Video Car" continued from page 26.
Next month we will cover the last set of schematics I have and if room
permits I will include a symptom/remedy chart that may speed some repairs
if they need be done. The schematics to be covered include the score
summing and latch circuit, character generator, fuel video bar graph, and
possibly some other goodies that may be of interest to you. See you then!
The crash circuitry is basically self-explanatory and brieMsimply
controls the video circuits discussed in part 1. CRASH AND
H are
enabling signals that cause the screen to flash at a l 4Hz rate whenever the
player's car runs over some obstruction. PC RASH is a signal that blanks the
player's car off the screen during a crash. The 7 4123s and 5 56 respectively
located at H6 and HS trigger and time the crash cycle.
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