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Braze Technologies |
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Innovative solutions for the "classic" arcade collector
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Zaxxon High Score Save Kit --
Trouble Shooting |
A common mistake is not having the daughter card inserted correctly, either
hanging over the socket by 1 pin, or in backwards. In this case you will usually
just see the powerup garbage on the screen. This garbage is just the random bits
that are in the character RAM at powerup, and it indicates the CPU was not able
to run.
Another common mistake is for the Z80 CPU to have been inserted incorrectly,
either backwards, or possibly with a pin bent that did not insert into the
socket properly.
The Zaxxon high score save kit will perform an
automatic powerup selftest on powerup. Should the kit detect any failure,
the screen will indicate what problem was detected.
If the failure indicates "HIGH SAVE BAD", then most likely that means
that one of the socketted chips on the HS daughter card is lose. Check to
make sure the 8 pin dip (the smallest chip) on the HS daughter card is
fully inserted into its socket. |
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