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Audio and Video Talk
Reel-to-Reel & Cassette Tapes
Revox B77 Record switch repair
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<blockquote data-quote="marcochezzi" data-source="post: 959216" data-attributes="member: 21001"><p>Yep, it?s not much at all, but it would be nice to see the program sequence, probably just timing. I looked on eBay and I did see a good few boards, Will give it some more thought once we close for the festive season. All the caps were replaced including the tantalums, the 3 TTL chips a as well. All transistors and triacs tested and ok, just the damn PROM....</p><p></p><p>If I don?t come right, I?ll sit down and work out my own sequence, then design a circuit to replace the PROM.</p><p></p><p>If that does not work, paperweight......</p></blockquote><p></p>
[QUOTE="marcochezzi, post: 959216, member: 21001"] Yep, it?s not much at all, but it would be nice to see the program sequence, probably just timing. I looked on eBay and I did see a good few boards, Will give it some more thought once we close for the festive season. All the caps were replaced including the tantalums, the 3 TTL chips a as well. All transistors and triacs tested and ok, just the damn PROM.... If I don?t come right, I?ll sit down and work out my own sequence, then design a circuit to replace the PROM. If that does not work, paperweight...... [/QUOTE]
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Audio and Video Talk
Reel-to-Reel & Cassette Tapes
Revox B77 Record switch repair
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