Search found 7 matches

by Papalapa
Fri Jun 11, 2021 7:28 pm
Forum: EXXOS WEBSTORE INFORMATION
Topic: TOS upgrade for 1040STF
Replies: 11
Views: 4677

Re: TOS upgrade for 1040STF

Wow! TOS chips received in only four days from UK to Spain :shock: Are you sure that UK not stills being into the EU ? :D It has been easy, just to release the two original chips, set the three jumpers to 256K and install the six chips in its sockets. It works like a charm. 0EyVvxn.jpg Rpqb1YE.jpg
by Papalapa
Sat Jun 05, 2021 12:10 pm
Forum: EXXOS WEBSTORE INFORMATION
Topic: TOS upgrade for 1040STF
Replies: 11
Views: 4677

Re: TOS upgrade for 1040STF

DUALTOS https://www.exxosforum.co.uk/atari/store2/#0131 Or "downgrade" to 6 chip TOS. https://www.exxosforum.co.uk/atari/store2/#0119 Many thanks for the information and also to rubber_jonnie for the clarifications. This morning already ordered the Spanish 6 chip set. Have a nice day :D
by Papalapa
Fri Jun 04, 2021 12:16 pm
Forum: EXXOS WEBSTORE INFORMATION
Topic: TOS upgrade for 1040STF
Replies: 11
Views: 4677

Re: TOS upgrade for 1040STF

rubber_jonnie wrote: Fri Jun 04, 2021 12:01 pm Its a bit fuzzy, but I think you're ok, though if you could get a clear shot of the IC immediately below the power connector and to the right of the row of resistors, I think that's it, but I'd like to check.
Here's it. The IC is the SN74LS11N

IMG_0459.jpg
IMG_0459.jpg (62.6 KiB) Viewed 3111 times
by Papalapa
Fri Jun 04, 2021 11:53 am
Forum: EXXOS WEBSTORE INFORMATION
Topic: TOS upgrade for 1040STF
Replies: 11
Views: 4677

Re: TOS upgrade for 1040STF

If you 'downgrade' to 6 chips, the machine will run just fine with no power problems. Aside from soldering in the sockets, there are pads near the ROMs marked 1M or 256K, or very similar. For 2 ROM sets these are set to 1M, so you will need to desolder the pads and solder the 256K pads instead. You...
by Papalapa
Fri Jun 04, 2021 11:33 am
Forum: EXXOS WEBSTORE INFORMATION
Topic: TOS upgrade for 1040STF
Replies: 11
Views: 4677

Re: TOS upgrade for 1040STF

DUALTOS https://www.exxosforum.co.uk/atari/store2/#0131 Or "downgrade" to 6 chip TOS. https://www.exxosforum.co.uk/atari/store2/#0119 In case that I downgrade to the 6 chips version, do I need to solder something else than the sockets for the TOS chips? It is necessary some additional mod...
by Papalapa
Thu Jun 03, 2021 6:58 pm
Forum: EXXOS WEBSTORE INFORMATION
Topic: TOS upgrade for 1040STF
Replies: 11
Views: 4677

TOS upgrade for 1040STF

I own an Atari 1040SFT in german language and I want to move it to the Spanish (or English) TOS v1.04 language After browsing the Exxos webshop it seems that there's no kit to do this, because my actual TOS is two-chips only instead of six. I'm wrong or there's a way to install the upgrade that I wa...
by Papalapa
Thu Jun 03, 2021 6:50 pm
Forum: INTRODUCE YOURSELF
Topic: Greetings from Catalonia
Replies: 3
Views: 1498

Greetings from Catalonia

Hi there,

I'm a retrocomputers collector and the last "pet" I get was an Atari 1040 STF, that's why I joined this forum.

Cheers.

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