I did do some easter egging with known good chips with no change.
Hadn't thought about trying the original chips in another board. Will give that a whirl.
However, when I replaced original chips with known good, the symptoms did not change so don't think that will confirm anything.
Thinking I may have to look at the 74XXX chips on the datapath as mentioned by GadgetUK.
Oh, the battery had been removed before any leakage had occurred.
Power supply is a known good unit. Bigfoot 350W.
@ Tenacious. Don't have a scope anymore. Kinda hard to check clock without a scope tho. I guess I'll drag out a good regular 500 mobo and check levels between the 2.
@GadgetUK (again!) I know what you mean about people hacking away at boards and destroying them. Picked up a job lot of stuff a while back. Previous owner had CUT OUT the power connector and 3-4 500 boards! He also did a number on the Agnus socket on a couple of them. Asked him why and he said he was going to try to make one good board out of 4. Ended up destroying all 4.
May give Mechy and yell since he's in Texas also and I'm thinking he will have some better test equipment than I do.
Was sure hoping it was going to be something simple. Should've know better!
That's what I get for buying AS-IS untested. Should have been about a dozen red flags waving in the breeze followed by a full brass band blaring away, but I missed the hints.
Thanks for the tips guys.
If I get this fixed I'll definitely let y'all know.
Curtis
