Problems on Apple IIe unenhanced PAL 240V

2 replies [Last post]
Offline
Joined: Jan 6 2010
Posts: 5

Hi to everybody,
I need Your help/suggestion:
I bought an Apple IIe unenhanced and I tried to switch it on (I live in a 220V country). The screen has random characters inverse and normal. When I press CTRL-RESET I see a blank screen with APPLE ][ and the cursor. I can insert applesoft commands but the "INT" command is not recognized (SYNTAX ERROR). I tried with self test (CTRL-CLOSE APPLE-RESET) but I can see only random characters and sometime the text IOU FLAG ER:05.
It is obvious there is a problem. Any idea? (RAM corrupted? anything else?)How can I find the problem? Is There a way to test the IC's on the motherboard?

Any help/suggestion will be very very appreciated!!

P.S. there is a 80column card with 64k inside (the PR#3 command works and I tried to switch the Apple on with and without card inserted: always the same)

Marco

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Offline
Joined: Aug 3 2011
Posts: 33
Re: Problems on Apple IIe unenhanced PAL 240V

The IOU chip, at position E5 on the motherboard, is suspect. Attempt to reseat it in the socket, and if that doesn't fix it, replace the chip.

Offline
Joined: Jan 6 2010
Posts: 5
Re: Problems on Apple IIe unenhanced PAL 240V

Thank You very much!

I'll try.

Only a question: Is it possible to found it new or I have to search for one used?

Thanks again