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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="mygoggie" data-source="post: 959375" data-attributes="member: 18916"><p>That is a IM5610. Equivalents would be SIG 82s123, MMI 6331 and NS 74S288.</p><p></p><p>These are single programming chips and cannot be wiped and reprogrammed. You will need to find a blank chip. Programming is simple these days with a Raspberry PI so you can do that yourself.</p><p></p><p>You will require the firmware which you can ask for on a few BBboards for old equipment. If you have a similar machine you should be able to pull the firmware from that chip. Alternatively the logic should be so simple that you can write your own firmware.</p><p></p><p>I will ask around. Maybe I can find the firmware.</p></blockquote><p></p>
[QUOTE="mygoggie, post: 959375, member: 18916"] That is a IM5610. Equivalents would be SIG 82s123, MMI 6331 and NS 74S288. These are single programming chips and cannot be wiped and reprogrammed. You will need to find a blank chip. Programming is simple these days with a Raspberry PI so you can do that yourself. You will require the firmware which you can ask for on a few BBboards for old equipment. If you have a similar machine you should be able to pull the firmware from that chip. Alternatively the logic should be so simple that you can write your own firmware. I will ask around. Maybe I can find the firmware. [/QUOTE]
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Audio and Video Talk
Reel-to-Reel & Cassette Tapes
Revox B77 Record switch repair
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