Search found 249 matches

by rubber_jonnie
Tue May 15, 2018 9:13 am
Forum: HARDWARE DISCUSSIONS
Topic: IC deterioration
Replies: 12
Views: 266

Re: IC deterioration

I do think that to some degree, the poor thermal characteristics of these machines also leads to a degradation of the components. For the intended lifespan of these machines, maybe 4 or 4 years, it would never be an issue, but after 30 years of thermal cycles, components that had poor tolerances to ...
by rubber_jonnie
Mon May 14, 2018 11:30 am
Forum: HARDWARE ISSUES
Topic: 1040STe locks up or bombs out after warming up
Replies: 11
Views: 196

Re: 1040STe locks up or bombs out after warming up

You need to recap your PSU.. pico's a lot of them are worse than a failing Atari PSU. Definitely do the above first. Or try a different genuine Atari PSU if you have one available. As exxos says, Picos are not ideal. Also, have you tried a different set of SIMMS? or Cleaned the contacts on the SIMM...
by rubber_jonnie
Sun May 13, 2018 11:55 am
Forum: HARDWARE DISCUSSIONS
Topic: IC deterioration
Replies: 12
Views: 266

Re: IC deterioration

Yeah, the whole PAK thing is a bit odd TBH. Your PAK worked first time with no issues in my test board, and of the CPU's you sent me with it (I think you sent 8 including the one installed in the PAK) I seem to recall all but one or two failed, and all the rest worked fine with no issues. Which is i...
by rubber_jonnie
Fri May 04, 2018 8:33 am
Forum: FLOPPY DRIVES KITS & UPGRADES
Topic: Going Gotek - FlashFloppy How To
Replies: 21
Views: 2251

Re: Going Gotek - FlashFloppy How To

So there is one final aspect to FlashFloppy I wanted to cover, and it's probably the easiest part, which is upgrading FlashFloppy once you've installed it. It's really quite simple. Download the latest update files from here: https://github.com/keirf/FlashFloppy/wiki/Downloads . Copy the UPD file to...
by rubber_jonnie
Fri May 04, 2018 8:27 am
Forum: FLOPPY DRIVES KITS & UPGRADES
Topic: Going Gotek - FlashFloppy How To
Replies: 21
Views: 2251

Re: Going Gotek - FlashFloppy How To

Forgottenmyname wrote:
Sun Apr 29, 2018 8:06 pm
Cool Howto, thanks :-)

now to get the atari fixed any working.
Thanks :)

Hope the Atari is now working :)
by rubber_jonnie
Thu May 03, 2018 5:11 pm
Forum: HARDWARE ISSUES
Topic: C070789-001 REV .D upgrade woes
Replies: 4
Views: 113

Re: C070789-001 REV .D upgrade woes

Did you test every single one you used in the upper 512K bank ? Of course it will only take one chip to cause chaos :) I soldered a socket into the first chip of bank 1, bank 1 and bank 2 being the original 512k RAM. I used my test rig and tested 32 chips (I'm going to test more), and the machine b...
by rubber_jonnie
Thu May 03, 2018 3:22 pm
Forum: HARDWARE ISSUES
Topic: C070789-001 REV .D upgrade woes
Replies: 4
Views: 113

Re: C070789-001 REV .D upgrade woes

Was this the epic where I suggested you try each RAM chip in the known working board ? Basically one chip at a time ? If you can upload the datasheet's both the chips I will have another look.. It could also be possible both chips you have or not 120ns even though it is printed on them like that.. ...
by rubber_jonnie
Thu May 03, 2018 3:01 pm
Forum: HARDWARE ISSUES
Topic: C070789-001 REV .D upgrade woes
Replies: 4
Views: 113

C070789-001 REV .D upgrade woes

I recently upgraded three 520STFMs to 1MB, and have hit some interesting issues. I have 2x C070789-001 REV.D main-boards that aren't happy with more than 512K fitted. Both will boot, but both exhibit issues which prevent use with more than 512k RAM fitted. One gives on screen banding which constantl...
by rubber_jonnie
Fri Apr 27, 2018 3:45 pm
Forum: FLOPPY DRIVES KITS & UPGRADES
Topic: Going Gotek - FlashFloppy How To
Replies: 21
Views: 2251

Re: Going Gotek - FlashFloppy How To

Folks, for all of you out there who are now FlashFloppy converts, there is a new version here: https://github.com/keirf/FlashFloppy/wiki/Downloads If you already have FlashFloppy installed, I'd suggest you follow the upgrade guide here: https://github.com/keirf/FlashFloppy/wiki/Firmware-Update As th...
by rubber_jonnie
Thu Apr 26, 2018 3:37 pm
Forum: CHAT FORUM
Topic: Retrobright ozone method
Replies: 15
Views: 280

Re: Retrobright ozone method

I'd be intrigued to see the results. If we get any sun that is.....