Take a look here http://www.biwa.ne.jp/~shamada/fullmac/repairEng.html#SimasiMac

Is this what you see, i suspect so, it sounds like you have already performed some of the checks. I had two SE/30's with this problem, the solution for me after trying everything else was to wash the board in an alcahol solution, cleaning up the 'goo' that had leaked from the capacitors marked C7, C8, C9 ( I washed the board in the kitchen sink, but other here can advise on dish washer settings, and still other will tell you 'Noooo!', however with careful washing and drying it can work) The washing trick worked for 1 of my SE/30's but not the other one, so I have now got hold of some replacement capacitors and will pluck up the courage to desolder the old ones and solder on the new ones ....soon.

Good luck
Mike





[EMAIL PROTECTED] wrote:

Ever since I connected a 500Mb Quantum hard disk to my Mac SE/30, it has stopped working. Now, when I switch it on, it makes no sound and the screen shows a pattern of black and white horizontal stripes, eight pixels wide, which doesn't clear to show the insert disk prompt.

I've checked all the cables, tried swapping the hard disk and the RAM SIMMs around, tried leaving the power disconnected for a minute (this sometimes helps to clear the memory) and tried removing the clock battery. None of this has helped.

Does anyone have a copy of The Dead Mac Scrolls, by Larry Pina? Could someone help me diagnose this problem?



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