I'll go along with that - mostly. It looks to me like the RCA cables terminate in a 2-pin plug at the mystery board, so my guess is they are wired together and bring the (mono) sound out to a stereo amplifier. The 9-pin plug is probably video for a TTL RGB monitor / projector, so neither NTSC or PAL. I'm still guessing - I haven't traced out the circuit or anything, but the chips on the board would be consistent with such a scan converter. It also looks very prototypish.
Post #19 by H3NRY
| Source Forum | 68kMLA |
|---|---|
| Category | Hardware |
| Post Date | Sat, 27 Mar 2010 - 04:04 |
| Original URL | https://68kmla.org/bb/threads/strange-board-on-mac-512k.20243/ |
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