RE: 68000 Pod Query

Thanks for the ideas guys!

I chopped the resistor pack out and that didn't make any difference.

I checked the resistance on the line manually, with power off, to +5 and 0V
and it was a little different but nothing obviously wrong.

So I bit the bullet and chopped out the soldered in RAM that was being used
to do the test with and magically the problem went away!

It must have been a problem with the WRITING of the data to the RAM (or the
input holding the bus line high??).

Now I have to fix all the bits that I broke and then see if it works in the
pinball table...

One more question... the processor is a 68k with an 8MHz crystal. The can I
replace the 6264-90 RAM with a 6264-12 one? (I'm presuming the 12 is short
for 120.)

Thanks,
Phillip Eaton

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Received on Sat Jun 5 17:42:51 2004