4040 startup error codes?

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srowe
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4040 startup error codes?

Post by srowe »

Well my trusty 4040 drive has finally given up on me. This morning I get a sequence of 8 flashes on all 3 LEDs and no drive motor spinup. Does anyone have a list of what these sequences mean?
sjgray
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Re: 4040 startup error codes?

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srowe
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Re: 4040 startup error codes?

Post by srowe »

Thanks for the link, I'd found a similar table elsewhere but this confirms I've probably got faulty RAM. One chip had been replaced previous to me acquiring the drive. I've got some 2114s, sockets are on order.
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srowe
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Re: 4040 startup error codes?

Post by srowe »

OK, after a rather fraught time de-soldering (I hate removing chips from boards) I've tested UE5 and it's certainly faulty. Dropped in a known-good replacement and the drive now powers up properly!

Here's a picture of the 6264 to 2114 converter I built to test the RAM
CAM00247.jpg
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