Recent content by sam1729

If you're looking at the underside of the board, with the I/O connectors at the top, and the ROM SIMM at the bottom, then the bottom-left pin of the 68030 (UK8) is A13, and the top right is N1. So, C11, for example, is the third column from the left, and the third pin up. 

Those are Address lines 9, 10, 11, 12, which you'll find at C11, A13, C10, B11 respectively on the 68030.

Yeah, looks like it must be the PSU, unless I need to bridge anything on the connector to get it pumping. Measured between Yellow, and Black per the schematics, and got something that read about as high as 6V before sliding down. Guess I'll need to do a bit more digging there. As I was doing...

Ah, sorry, I read 'plastic sheet' and 'burn mark' and went straight to the burn mark I did have! https://imgur.com/a/y1JFfDJ Analogue Board looks decent, no tell-tale residue on front, or back. No real scorching on the shield, the dark marks that are there rub away easily with a finger. ...

Oh yeah, the logic board was in bad shape, no doubt about it https://imgur.com/a/iQuuWPT (Pictures are before any cleaning/repair) To be honest, I've almost resigned myself to trying to get another board, and using this one for parts, but I'd like to chase down the issue (if any?) with the...

Yeah, I've plugged the PSU back into the analogue board. Re-soldered the joints for that connector, for good measure. I was able to see the simasimac with my own eyes after receiving it, although it might be worth noting that the first time I plugged it in, it displayed the simasimac pattern...

Hi all, I'm currently trying to fix up an SE/30, and could do with some help diagnosing the problem. This machine came to me with simasimac, and a burst Maxell PRAM battery, but after a thorough clean and recap, and a couple of repaired traces, I put the board back in the SE/30, powered it on...