Re: Unindentifiable motherboard port (II Plus clone)

[dalloff@freenet.columbus.oh.us (Dave Althoff)]

Michael Black (blackm00@CAM.ORG) wrote:
: I have a II clone board that I found in the garbage at one point.  It was
: missing parts, so it's scrap.  But it had two DB-9 connectors on it.  One
: of them I took off for something else, but the remaining one is male and
: I assume the missing one was male too.  They are both labelld (in silk
: screening on the board) "Game I/O".  The IC's that would be in the
: joystick circuitry are right near it.

: With a little time, mainly to get around to it, I could trace the pins on
: the DB-9's too see what's what. Would that be useful?  I guess I hesitate
: to simply do it because if nobody sees DB-9 male connectors as standard
: for some joystick (I can't think of anything) then can we assume that two
: clone boards would use the same pinout?  If you have a multimeter and feel
: capable of tracing the circuitry, at least you could verify a match from
: my data, though there is also the chance that the pinout is the same but
: different sections of the IC's are being used.

Perhaps those are (were) ports for switch-type joysticks?  Atari 2600
joysticks have female DB-9 connectors on them, which would necessarily
mate to male DB-9 connectors...

--Dave Althoff, ][.
-- 
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