Author Topic: Gottlieb Sys 80 Replacement Audio Amp (original part is obsolete)  (Read 1718 times)

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Offline Homepin

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Glad to hear all is well with the ones that have been installed. I should add that I have had professional PCBs made so the finished items (as Beaky received) are very high quality.

Replacement Pinball PCBs that remain faithful to the originals

Offline Boots

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Hey Mike
Have you considered making a replacement for the MPU ROM card (see picture) that allows for the card to be socketed on so that it doesn't have to be desoldered to replace the rom socket on the card?
I have heard of double sided cards somewhere that allow header pins to be soldered in the allow the board to be plugged into a socket on the board.
These cards are quite difficult to get out and after doing it the first time you are reluctant to solder it back on.



Offline Homepin

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Happy to design and make one that is socketed - how can I get hold of one as in your picture?

Replacement Pinball PCBs that remain faithful to the originals

Offline beaky

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I have to change one of these sockets at the moment also.
I am waiting on a chip for my Hakko soldering station before attempting to remove though. because of how delicate the tracks look i won't attempt it with a cheaper desoldering tool.

when I have removed it i can always remove all components and scan the board for you if you can't get a hold of one Mike
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Offline Homepin

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I have to change one of these sockets at the moment also.
I am waiting on a chip for my Hakko soldering station before attempting to remove though. because of how delicate the tracks look i won't attempt it with a cheaper desoldering tool.

when I have removed it i can always remove all components and scan the board for you if you can't get a hold of one Mike

If you are pulling it out anyway that would be good ALTHOUGH a 'clear' photograph of both sides would work equally well (no phone camera pics please)

Cheers
Replacement Pinball PCBs that remain faithful to the originals

Offline Boots

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I have to change one of these sockets at the moment also.
I am waiting on a chip for my Hakko soldering station before attempting to remove though. because of how delicate the tracks look i won't attempt it with a cheaper desoldering tool.

when I have removed it i can always remove all components and scan the board for you if you can't get a hold of one Mike
Yep know what you mean, I got mine off but I damaged quite a few tracks on the rom board in doing it.
I fixed it but if you look underneath it it looks a bit hacked.
I managed to get it socketed with parts I had available but its not the best.

I can scan it or take photos Mike if that's what you need, I am surprised this one hasn't come up before.

Offline beaky

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I found with scans you can get next to the exact size for your copy. But mike is right also
« Last Edit: June 17, 2012, 06:22:59 PM by beaky »
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I found with scans you can get next to the exact size for your copy. But mike is right also


Scans are the best BUT for this kind of board the 'exact' size isn't critical and the chips are standard (naturally) so there isn't any issue there.

Replacement Pinball PCBs that remain faithful to the originals