Gravitar Debug - HOT RAM

My Gravitar board has sizzling RAM at N/P1 and K7. They are TI
TMS4016-15NL devices. Sound correct? Is there a recommended substitute
part? The pins are black and the packages are too hot to touch. Common
problem?

I have the board on a test bench powered by a known good A/R II board,
but am unable to get a display in XY mode on my scope. I should be able
to get some sort of a disply even *without* the two RAM chips, right?

Sorry for not knowing this by now, but is there anything else I should
be looking for? Seems strange they would both fail in this manner, but
maybe not? These were the only two devices that were burning hot, so
I just thought I'd start with these.

Thanks in advance for any and all advice.

Tim
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Received on Wed Sep 17 00:55:34 2003