Apple II

Disk drive indicator light does not light up. Self test lasts forever, no codes are displayed on screen, only random beeps. Computer will not boot any drive.

My son is troubleshooting an Apple II plus (actually a complete rebuild and testing of the machine) and finally he's up to doing a memory test and it fails using APtest's 48k memory test. I'd normal use the dealer diagnostics, but it won't boot, an indicator of a low ram issue.

Is there documentation around on this program so we can understand which chip it is? It says ROW D and has Error 4040 before it, but we are not sure how to interpret that other then row D.

I told him he can keep 1/2 the money from selling it, but it must be 100% working and the keyboard must be rebuilt as the first item (which I did have to help him with) so this memory error is all he has left unless he decides to touch up the paint.

Thanks,
Corey

Hello ... i have an apple iic that has a bad 344-0041-a disk controller chip.. was wondering if someone might have one .. and if not maybe a iic mother board with other issues,, that might have a good 344-0041-A chip i can attempt to desolder...i have already removed the bad chip and soldered in a socket, ready for a new chip....if so contact me

Regards.. Mike

Good Evening All,

I received a Nibble Magazine today that I had won on eBay.
This issue was from 1988 and has some good ProDOS listings.
There seemed to be a lot of AE advertising throughout, but one ad in particular caught my attention. It was for an AE Serial Pro Card. This is used for printers (as you might suspect).
I have never seen an actual AE Serial Pro Card.
I don't believe that I have ever seen one listed on eBay.

Has anyone ever actually seen one of these?