Wizztonics TOS206 upgrade issue - SOLVED
Wizztonics TOS206 upgrade issue - SOLVED
No find on the net anywhere so far. No instructions.. no docs or software.
At the moment this machine.. only the two chips shown... not sure if those are custom ROMS with both 1.04 and 2.06 on it. I am assuming.
Switch on back has a closed, and open.. not a double throw. SO I assume 1.04 is default, 2.06 is closed.
Anyway.. 1.04 - get a white screen and floppy access ... thats all.
2.06 I get the atari logo in the top corner, no floppy access and thats all.
Any help would be very welcome.
James
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- Posts: 290
- Joined: Thu Feb 28, 2019 5:02 pm
Re: Anyone have it? know it?
Have you tried asking Wizztronics for the manual?
http://www.wizztronics.com/ataricomputers.html
http://www.wizztronics.com/ataricomputers.html
Re: Anyone have it? know it?
Yep, no response so far.
James
James
Re: Anyone have it? know it?
Do you have a diagnostic cartridge to test it with?
Re: Anyone have it? know it?
The computer.. yes! actually I do now!
I have the exxos cart. SO I will try that tonight anyway.. Thanks just brand new to me.. and I know its upgrade related, so never thought to try the cart.
James
I have the exxos cart. SO I will try that tonight anyway.. Thanks just brand new to me.. and I know its upgrade related, so never thought to try the cart.
James
Re: Anyone have it? know it?
I have a mega ST2 rev 1 board.. not sure where the MMU is .. it calls it a GST MMU.. but on a rev 1 is it that chip? anyone?
James
Re: Anyone have it? know it?
I have a C1001509 mmu.. I pulled it.. examined it.. and put it back in.. still no good.
DO I replace it with the same chip?? I read from exxos last upgrade IMP chips maybe no so good. Can i replace with a different mmu?
I have 3 other machines right now.. can I sub in another with this odd board? are the MMU interchangeable?
James
DO I replace it with the same chip?? I read from exxos last upgrade IMP chips maybe no so good. Can i replace with a different mmu?
I have 3 other machines right now.. can I sub in another with this odd board? are the MMU interchangeable?
James
Re: Anyone have it? know it?
Do a RAM check on the diag cart. Does it say 'OK'?
Re: Anyone have it? know it?
Cant get to a ram check.
The red screen means it failed on boot. T4 is as I said.. I need to sub in another mmu I guess.. see if we get past this point.
Exxos.. what chips can I sub in for the C1001509??
James
The red screen means it failed on boot. T4 is as I said.. I need to sub in another mmu I guess.. see if we get past this point.
Exxos.. what chips can I sub in for the C1001509??
James
Re: Anyone have it? know it?
Would need to see a image of the RAM area. I have a load of RAM chips not in my store yet as well, just not got time at the moment to test them.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.