Van: cctalk-bounces at
classiccmp.org namens Brad Parker
Verzonden: zo 22-04-2007 02:43
Aan: General Discussion: On-Topic and Off-Topic Posts
Onderwerp: KY11 - ever debug one?
I forgot one thing.
As you said that you had the connector the wrong way around plugged in,
I would check the drivers (7417 on drawing KY-7) ... is the input signal
also present on the output? You might have destroyed one of those ...
The console has 2 fastons (tabs?) for the +5 V power, but +5V is also on
that flatcable, pin 19. Plugging it in the wrong way gives +5 on pin 2.
I do not see much harm there, as pin 2 goes to TB1 "BOOT SW".
But check what connections you make between the M7859 and the console
if that connector was plugged in the wrong way ... it might give clues!
- Henk.
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