STE DUAL TOS 1.62 & TOS206

Upgrade or replace the ROM.
Post Reply
User avatar
exxos
Site Admin
Posts: 3508
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

STE DUAL TOS 1.62 & TOS206

Post by exxos » Sat Sep 30, 2017 1:06 pm

Image

TOS 1.62 / 2.06 is selectable by a jumper on the board, or can be fitted with a toggle switch if required. This board can also be used as a "Fast TOS" upgrade with the V1 STE BOOSTER.



STORE LINK
https://www.exxoshost.co.uk/atari/last/storenew/#0048 (various langs available )

https://www.exxoshost.co.uk/atari/last/storenew/#0059 (STE 32MHz BOOSTER)

HOME PAGE
http://www.exxoshost.co.uk/atari/last/t ... ETOSSWITCH



Addendum


When using any of my STE boosters with this particular series of dualtos boards ( be it the blue or black series) a 33R resistor should be placed series with the jumper wire between the DUALTOS board and the booster (CE line). This will help with some odd stability issues I have seen on a couple of motherboards.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

beeka
Posts: 2
Joined: Sun May 20, 2018 5:40 pm

Re: STE DUAL TOS 1.62 & TOS206

Post by beeka » Sun May 20, 2018 6:11 pm

Just getting around to finishing / fitting the dual tos board but my "jumpers" are configured differently... The board came with tos 1.6 in 32-pin ceramic eeproms (pretty sure I can feel a 'window' under the sticker. Both W104 and W102 have a 0ohm resistor linking pins 1 to 2. W103 appears to be linked from pin 2 to 3 on the pcb. Do I need to do anything before fitting the switching board?

Another question: about clearance... basically there is none and I expect the floppy drive not to fit. Some of this (~1mm) is down to my inexperienced assembly - I can see some of the pins could be soldered slightly closer to the board - but the rom socket feels quite high generally. I can't see it would ever fit... is there something I have done wrong?

Steve.
Attachments
DSC03398.jpg
DSC03398.jpg (193.37 KiB) Viewed 547 times

User avatar
exxos
Site Admin
Posts: 3508
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: STE DUAL TOS 1.62 & TOS206

Post by exxos » Sun May 20, 2018 6:55 pm

The links are as in this image..

Image

If the board is assembled and pushed in correctly it does all fit..

Image

Though I don't recommend leaving it in sockets anyway.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

beeka
Posts: 2
Joined: Sun May 20, 2018 5:40 pm

Re: STE DUAL TOS 1.62 & TOS206

Post by beeka » Sun May 27, 2018 5:25 pm

I've braved removing the link resistors and replace with jumpers (my first mobo work and amazed I didn't fry the board... one of those links just didn't want to be removed). Regarding the clearance, how close should the kit be to the sockets, as I can't get it flush (I considered trimming the pins) and things only go back together with some mechanical assistance... screwing the floppy disk in place has moved the board slightly. Is this normal?

I might end up taking your advice and solder into the mobo but will need to invest in a better desoldering solution to remove the sockets but don't have time to do that right now anyway.

Steve.

User avatar
exxos
Site Admin
Posts: 3508
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: STE DUAL TOS 1.62 & TOS206

Post by exxos » Sun May 27, 2018 7:18 pm

I don't think the pins fully insert into the sockets, they are pretty long. So you could try trimming them if you can be accurate enough to keep them all the same length as you only need one pin to short and it won't end well :)

The board does need a good shove to insert fully into the MB sockets.. The PLCC socket should be level under the floppy drive normally as shown in the image. It shouldn't move when the floppy drive is in place.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

User avatar
exxos
Site Admin
Posts: 3508
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: STE DUAL TOS 1.62 & TOS206

Post by exxos » Fri Jul 27, 2018 1:32 pm

Addendum


When using any of my STE boosters with this particular series of dualtos boards ( be it the blue or black series) a 33R resistor should be placed series with the jumper wire between the DUALTOS board and the booster (CE line). This will help with some odd stability issues I have seen on a couple of motherboards.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

User avatar
rubber_jonnie
Posts: 468
Joined: Thu Aug 17, 2017 7:40 pm
Location: Essex
Contact:

Re: STE DUAL TOS 1.62 & TOS206

Post by rubber_jonnie » Fri Jul 27, 2018 1:53 pm

I like to do the jumpers too, will do the same to my other STE next time it's in bits.
Jumpers.jpg
Jumpers.jpg (255.79 KiB) Viewed 238 times
Collector of old Atari things:
800XL + Ape Warp mod, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg) + Gotek, 1040STFM + Vortex ATOnce + Gotek, 1040STF long button floppy, 4160 STE with Gotek and ROM switcher, 4160STE with 32Mhz booster, ROM switcher and CosmosEx, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

Post Reply