Re: ][+ locking up

[ekblaw@vnet.ibm.com (Rick Ekblaw)]

In <4m2ros$139u@rtpnews.raleigh.ibm.com>, dyoung@raleigh.ibm.com writes:
>i managed to buy an apple ][+ system which i found after buying it, manages to
>lock up and gives me a syntax error when i enter any command. ive already reseated 
>every chip on the board, and removed every interface card, all to no avail. this only 
>happens after a few minutes which may be indicative of a heat problem, but dont 
>have any others ideas. can anyone help?

The problem could be coming from a lot of places, but I'd say that the most likely
cause is a flaky RAM chip, and second most likely being a flaky ROM chip.  If you
can lay your hands on a copy of the Apple ][+ Dealer Diagnostics diskette, you
could probably nail the culprit in a couple of debugging sessions.
 
However, given the current low prices on Apple ][+ motherboards (see
comp.sys.apple2.marketplace for some examples), it might be more prudent to
simply swap your motherboard for another, and hold on to your current
motherboard as a source of spare parts.

Rick Ekblaw