TECH: JM Switch Matrix Issue
- From: JeffB418 <jbednarek@xxxxxxxxx>
- Date: Tue, 29 Sep 2009 17:58:25 -0700 (PDT)
So I was working on my JM tonight adjusting the switches on the pop
bumpers and everything was working fine then something happened. Now
it says rows 1-6's gnd is shorted in the test menu. Im wondering what
i might have busted, seeking some help. I tried a few things and this
is what I've found out so far. First if i pull the J3 connector off
the 7-Opto switch board (A-15595) all the switches that are closed
(every switch under rows 1-6) become open. Second, after I pull this
connector I have some switch functionality (both slings, in/out
lanes). Third, if i hit the "right rubber", "right loop", or "inner
loop" switches, it causes every switch in those rows to become tripped
together. Did I fry this opto board? Did I bust something on the CPU?
Any suggestions on where to look from here? Any suggestions and help
is much appreciated.
Jeff B
.
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