TOS/CPU/&MORE Upgrades for an STE

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Steve
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TOS/CPU/&MORE Upgrades for an STE

Post by Steve » Sun Jun 07, 2020 9:04 pm

Hi guys,

I just finished an upgrade job for a client, it was a stock STE in very nice condition given the following upgrades:

Before any modifications:
beginning.jpg
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Replace the SN74S257N with SN74F257N U405 (Required for 32Mhz booster)
removed u405.jpg
removed u405.jpg (613.05 KiB) Viewed 1293 times
u405 socket.jpg
u405 socket.jpg (505.95 KiB) Viewed 1293 times
new u405.jpg
new u405.jpg (510.61 KiB) Viewed 1293 times
Reset circuit cap replacements
removed reset caps.jpg
removed reset caps.jpg (547.13 KiB) Viewed 1293 times
new reset caps.jpg
new reset caps.jpg (564.93 KiB) Viewed 1293 times
UBE TOS Switcher with fast ROM
removed TOS roms.jpg
removed TOS roms.jpg (578.39 KiB) Viewed 1293 times
route line under yamaha.jpg
route line under yamaha.jpg (468.98 KiB) Viewed 1293 times
Ultrasatan Micro-USB cable connected to Floppy 5v
ultrasatan cable.jpg
ultrasatan cable.jpg (486.61 KiB) Viewed 1293 times
Exxos 32Mhz STE booster upgrade & 8mhz/32Mhz switch.
remove CPU.jpg
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booster 32mhz line.jpg
booster 32mhz line.jpg (595.35 KiB) Viewed 1293 times
booster and switch.jpg
booster and switch.jpg (485.34 KiB) Viewed 1293 times
New Exxos 110v PSU
new psu.jpg
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psu on board.jpg
psu on board.jpg (512.48 KiB) Viewed 1293 times
And the rest: New 4700uf cap, Video capacitor upgrade, Install new RAM.
finished.jpg
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Through every part of the incremental upgrades I informed the client with video demonstrations and photographs. The result is a very snazzy STE.
Repairs & Servicing for Atari & Amiga machines (and any other retro computers) Located in the West Midlands UK. PM me if you require assistance.
www.solidstatesociety.co.uk

anthonysheff
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Re: TOS/CPU/&MORE Upgrades for an STE

Post by anthonysheff » Fri Jun 12, 2020 6:31 pm

HI Steve

just wondering if you do repairs on a Motherboard has i have managed to get a board which looks like someone has take a blow torch to fix or try ?

cheers
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st atari.jpg
st atari.jpg (199.06 KiB) Viewed 1187 times

Tomswork
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Re: TOS/CPU/&MORE Upgrades for an STE

Post by Tomswork » Fri Jun 12, 2020 6:46 pm

Wow that has been warmed and maybe the wrong solder to. Try cleaning with a q tip wet with baking soda then wash isp see what left for traces.

Tom

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PaulJ
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Re: TOS/CPU/&MORE Upgrades for an STE

Post by PaulJ » Fri Jun 12, 2020 8:20 pm

anthonysheff wrote:
Fri Jun 12, 2020 6:31 pm
HI Steve

just wondering if you do repairs on a Motherboard has i have managed to get a board which looks like someone has take a blow torch to fix or try ?

cheers
Man, that looks like Russ's motherboard. Are you in Canada... buy it from @Bikerbob ...? :smoke: :sigh:

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Steve
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Re: TOS/CPU/&MORE Upgrades for an STE

Post by Steve » Sat Jun 13, 2020 12:17 pm

anthonysheff wrote:
Fri Jun 12, 2020 6:31 pm
HI Steve

just wondering if you do repairs on a Motherboard has i have managed to get a board which looks like someone has take a blow torch to fix or try ?

cheers
I'll pm you
Repairs & Servicing for Atari & Amiga machines (and any other retro computers) Located in the West Midlands UK. PM me if you require assistance.
www.solidstatesociety.co.uk

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Bikerbob
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Re: TOS/CPU/&MORE Upgrades for an STE

Post by Bikerbob » Sat Jun 13, 2020 2:55 pm

PaulJ wrote:
Fri Jun 12, 2020 8:20 pm
anthonysheff wrote:
Fri Jun 12, 2020 6:31 pm
HI Steve

just wondering if you do repairs on a Motherboard has i have managed to get a board which looks like someone has take a blow torch to fix or try ?

cheers
Man, that looks like Russ's motherboard. Are you in Canada... buy it from @Bikerbob ...? :smoke: :sigh:
No that board was much worse, and I fixed it completely. And sold it for a good price thankyou very much ;)

James

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PaulJ
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Re: TOS/CPU/&MORE Upgrades for an STE

Post by PaulJ » Sat Jun 13, 2020 3:13 pm

Congrats on the sale @Bikerbob , you half to admit the shown board resembles pictures Russ posted of his efforts, even the same area of the board and it was an STE if I recall. Maybe the perpitrator of this boards damage went to the same soldering school as Russ. :shrug:

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rubber_jonnie
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Re: TOS/CPU/&MORE Upgrades for an STE

Post by rubber_jonnie » Sat Jun 13, 2020 3:21 pm

Bikerbob wrote:
Sat Jun 13, 2020 2:55 pm
PaulJ wrote:
Fri Jun 12, 2020 8:20 pm


Man, that looks like Russ's motherboard. Are you in Canada... buy it from @Bikerbob ...? :smoke: :sigh:
No that board was much worse, and I fixed it completely. And sold it for a good price thankyou very much ;)

James
I did wonder who ended up with that board, good job on the repairs!
Collector of old Atari things:
800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, 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

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Re: TOS/CPU/&MORE Upgrades for an STE

Post by Bikerbob » Sat Jun 13, 2020 3:54 pm

PaulJ wrote:
Sat Jun 13, 2020 3:13 pm
Congrats on the sale @Bikerbob , you half to admit the shown board resembles pictures Russ posted of his efforts, even the same area of the board and it was an STE if I recall. Maybe the perpitrator of this boards damage went to the same soldering school as Russ. :shrug:
Well, Paul, Russ used a 1/2" soldering tip.. more like brazing iron, and I then think he fell asleep with it on the board.. LOL...

yeah.. always amazing how people are willing to butcher things when it is so obvious it is the wrong tool for the job.

James

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Re: TOS/CPU/&MORE Upgrades for an STE

Post by PaulJ » Sat Jun 13, 2020 4:13 pm

Bikerbob wrote:
Sat Jun 13, 2020 3:54 pm
Well, Paul, Russ used a 1/2" soldering tip.. more like brazing iron, and I then think he fell asleep with it on the board.. LOL...
yeah.. always amazing how people are willing to butcher things when it is so obvious it is the wrong tool for the job.
James
Ya, I'm sure it was obvious when Russ started with the iron things weren't going well yet Russ forged on. I do miss Russ on the forum. You never know what he was going to do next. I think he hard a big heart, just poor execution on his efforts. He did want to be Exxos's advertsing department.
:sigh:

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