Search found 35 matches

by AndyGarton
05 Apr 2023 20:19
Forum: HARDWARE
Topic: Help! (MTX512 Problem)
Replies: 9
Views: 9419

Re: Help! (MTX512 Problem)

Forgot about the edge connectors - I did clean them, but only very lightly with IPA and cotton buds.
by AndyGarton
05 Apr 2023 19:58
Forum: HARDWARE
Topic: Help! (MTX512 Problem)
Replies: 9
Views: 9419

Re: Help! (MTX512 Problem)

Thanks, that’s beginning to wake up my memory banks - I can’t find any old emails on the subject unfortunately, but I’ve got a feeling at least one of my machines *did* have bad RAM, and Andy Key provided a suitable GAL for it with the REMEMOrizer. One of my GALS is marked 2_0, the other 2_32, I thi...
by AndyGarton
05 Apr 2023 19:15
Forum: HARDWARE
Topic: Help! (MTX512 Problem)
Replies: 9
Views: 9419

Re: Help! (MTX512 Problem)

Now swapped the GAL and CTC and no difference.
by AndyGarton
05 Apr 2023 18:44
Forum: HARDWARE
Topic: Help! (MTX512 Problem)
Replies: 9
Views: 9419

Re: Help! (MTX512 Problem)

Thanks Dave, I wasn’t using sound, but having dug out a cable, I do get a constant tone. Any thoughts on best way forward from here? You mentioned bad RAM, but I believe the REMEMOrizer supplies “replacement” RAM the way I have it set up, so that seems unlikely? I have since tried swapping the CPU, ...
by AndyGarton
05 Apr 2023 15:53
Forum: HARDWARE
Topic: Help! (MTX512 Problem)
Replies: 9
Views: 9419

Re: Help! (MTX512 Problem)

Other other thing I forgot to mention - the first time I tried it after putting it back together, the keyboard didn’t do anything, and I found I’d put the connector back on off by one pin. Is it possible/likely this killed it?
by AndyGarton
05 Apr 2023 15:40
Forum: HARDWARE
Topic: Help! (MTX512 Problem)
Replies: 9
Views: 9419

Help! (MTX512 Problem)

Hi all, I have an MTX 512 with a REMEMOrizer 2 which has been working fine for several years. Rather stupidly, and prompted by a recalcitrant keyboard that I wanted to clean, I decided to tear down the machine and give it a good all round clean. You guessed it - once it was back together it doesn’t ...
by AndyGarton
02 May 2014 12:55
Forum: MAGROM
Topic: Available for order
Replies: 27
Views: 32932

Re: Available for order

Thanks Martin, that runs ok (I only tried it with expansions, i.e. 32k card and MAGROM, both internal).
by AndyGarton
29 Apr 2014 17:01
Forum: MAGROM
Topic: Available for order
Replies: 27
Views: 32932

Re: Available for order

Ok I cleaned all contacts, reseated chips, tried internal as well, still get the same behaviour unfortunately. Each game fails with a consistent symptom, but each is a little bit different. Arcazians (I forget the spelling!) actually gets to the game title screen, but pressing 1 or 2 to start the ga...
by AndyGarton
29 Apr 2014 13:01
Forum: MAGROM
Topic: Available for order
Replies: 27
Views: 32932

Re: Available for order

Thanks Mark, the machine does run simple BASIC programs so works to some degree at least. I'll double check the edge connector later.
by AndyGarton
29 Apr 2014 10:11
Forum: MAGROM
Topic: Available for order
Replies: 27
Views: 32932

Re: Available for order

I will try Dave, as well as try the MAGROM internally, and in the other machine. It won't be quick though unfortunately as my other machine is in storage at a different address currently.

I really appreciate your help btw guys, I'm quite sure this is a machine problem rather than MAGROM problem.