C070243 rev B with Weide 1mb upgrade

ST & STM motherboards.
Post Reply
Steve
Posts: 2570
Joined: Fri Sep 15, 2017 11:49 am

C070243 rev B with Weide 1mb upgrade

Post by Steve »

Just opened up another STM, besides the cool ram upgrade it has lots of patches going from the modulator to various places around the shifter. Anyone know why?

PXL_20210617_171526251.jpg
PXL_20210617_171526251.jpg (381.81 KiB) Viewed 3750 times
PXL_20210617_171531271.jpg
PXL_20210617_171531271.jpg (487.06 KiB) Viewed 3750 times
PXL_20210617_171826709.jpg
PXL_20210617_171826709.jpg (371.55 KiB) Viewed 3750 times
PXL_20210617_171639627.jpg
PXL_20210617_171639627.jpg (495.69 KiB) Viewed 3750 times
PXL_20210617_171940404.jpg
PXL_20210617_171940404.jpg (508.48 KiB) Viewed 3750 times
User avatar
exxos
Site Admin
Site Admin
Posts: 23497
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: C070243 rev B with Weide 1mb upgrade

Post by exxos »

Maybe composite sync mod ?
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.
User avatar
stephen_usher
Posts: 5580
Joined: Mon Nov 13, 2017 7:19 pm
Location: Oxford, UK.
Contact:

Re: C070243 rev B with Weide 1mb upgrade

Post by stephen_usher »

Well, you've solved the mystery of my 520SFM's memory upgrade manufactuer for me! It doesn't have the name on mine, merely the logo.
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
Post Reply

Return to “ST”