Good,
I have a problem with the cpu board that is not giving any switches in column 7.
I already experimented with other cpu boards and the switchs all of column 7 work.
That is the problem on the CPU board.
I have switched the integrated uln2803 and continue on the same thing.
I have already done the continuity test to see if it is a good emission control track and it is ok.
one result is a J206-7
I do not know what it may be for a column 7 and pin 7 from j206 not to have the signal
Assume you're talking about a WPC game. Check continuity back up to the chip, it's not uncommon to lose continuity on these boards and need to run a jumper.
This is extremely helpful for tracing continuity on these games:
thanks , yes u20 .
does not replace u14
I already checked the continuity up to the chip uln2803 of the plug j206 and everything is ok
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Hopkins, MN
