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Home Forums Color Classic Needs Serious Help — #1 Color Classic Needs Serious Help — #1
Post #1 by rickrob
Source ForumColor Classic Needs Serious Help — #1
CategoryTroubleshooting
Post DateSat, 25 Oct 2014 - 18:25
Original URLhttps://68kmla.org/bb/threads/color-classic-needs-serious-help.465/
Post
I picked up a Color Classic this morning.  Cosmetics are good, a little yellowed/dirty. Came with and external SCSI CD and a carrying case for the whole thing. Pulled the board and it had a Toasted Maxell battery.  Battery gunk everywhere...

Cleaned it up with isopropyl for now and assessed the damage.  So far here's what I've found:

No trace of any of these components is left:

Battery Clip - Gone

C6 - Gone, pad damage

Y1 - Gone

S1 - Gone

These IC's have damage:

U11 - LS245 Data Buffer/Driver Half of the legs on each side are gone, pads gone.

U7 - 341S0417 / 0C25TTLDZ9320 - Made by Moto- Apple specific? -  damaged legs, pads gone

U8 - Can't tell what this is - Several damaged legs

The board itself around these is in good shape and I think it can probably be repaired. It'll just have a lot of blue kynar  wires on it... appears to be just pad damage.

It needs a re-cap as well. C9, C10 are leaking.

So I'll need to determine what the best course of action is with this--

Where can I find replacements for U8, U7, U11-- U11 is common I'd guess, but U7 and U8?

Have to find the values for C6, Y1, and S1

Any recommendations on sourcing these? Or would I be better off looking for a donor board/replacement board?

Not sure how to post pics here, If someone can tell me, I'll upload some to Photobucket.

Thanks,

mp.ls