Re: Xevious ROM problem

>Trying to debug a Xevious PCB problem. A Xevious PCB set has two boards,
>the CPU and the video with a small PCB interconnect board. I am able to
>cross test with a complete known good boardset. Through cross testing, I am
>able to verify that the video board and the PCB interconnect board are 100%
>okay. During self test the CPU board reports RAM okay, but a ROM error on
>ROM 7. The manual idnetifies ROM 7 as location 2C on the CPU board. I swap
>that ROM 7 with the corresponding one from the good board and it doesn't
>solve the problem. i.e., the good ROM 7 in the bad boardset still reports
>an error on ROM 7. The "bad" ROM 7 in the good boardset works fine,
>boardset 100% okay. Any advice on where to go next with this? Thanks,
>
>Joe

Possibly one of the following:

Bad socket
Bad ROM select
Broken/cracked trace

Should be fairly easy to fix. :)

Phil

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Received on Sat Mar 11 13:53:40 2006