Apple IIe Boot Help

July 13, 2016 at 10:26:18
Specs: Dos 3.3 - Apple IIe, 64 kbs
I have an apple IIe that was working fine, and then I brought it downstairs and it suddenly did not beep when it turned on, and the disk drive did not whirr. The screen cam up with a bunch of @s and DELETE Spaces with a few highlighted ares with the cursor there but not doing anything - computr was unresponsive.

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#1
July 13, 2016 at 15:37:26
That's a museum piece... but as long as it works - why not...

Remove power source(s); open the case; check that everything that is plugged into whatever socket - is still securely so...

If there are removable RAM sticks, check they are securely inserted. Remove them one at a time, clean their edge contacts with a soft pencil eraser. Then re-insert; and then power up and see what?


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#2
July 13, 2016 at 22:13:52
The bios is also probably a socketed chip. Remove it and make sure all the pins are straight and clean. Then reinstall.

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#3
July 14, 2016 at 08:35:10
There will be no RAM sticks; it will all be chips. I don't know about the Apple II, but the chips in the original IBM PC had a habit of "walking" out of their sockets due to the heat cycle of switching the machine on and off. Part of routine maintenance was to apply a thumb heavily to all socketed chips. You could hear a "creak" as they moved back into the socket. It's also worth cleaning all ribbon cable connectors in the way described above.

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#4
July 14, 2016 at 08:51:59
Yup, thermal creep can get you every time.

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