TOS/CPU/&MORE Upgrades for an STE

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Steve
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Joined: Fri Sep 15, 2017 11:49 am

TOS/CPU/&MORE Upgrades for an STE

Post by Steve »

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)
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u405 socket.jpg
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new u405.jpg
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Reset circuit cap replacements
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new reset caps.jpg
new reset caps.jpg (564.93 KiB) Viewed 3732 times
UBE TOS Switcher with fast ROM
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route line under yamaha.jpg
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Ultrasatan Micro-USB cable connected to Floppy 5v
ultrasatan cable.jpg
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Exxos 32Mhz STE booster upgrade & 8mhz/32Mhz switch.
remove CPU.jpg
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booster 32mhz line.jpg
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booster and switch.jpg
booster and switch.jpg (485.34 KiB) Viewed 3732 times
New Exxos 110v PSU
new psu.jpg
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psu on board.jpg
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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.
anthonysheff
Posts: 1
Joined: Fri Jun 12, 2020 6:20 pm

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

Post by anthonysheff »

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
Attachments
st atari.jpg
st atari.jpg (199.06 KiB) Viewed 3626 times
Tomswork
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Re: TOS/CPU/&MORE Upgrades for an STE

Post by Tomswork »

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 »

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:
Steve
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Joined: Fri Sep 15, 2017 11:49 am

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

Post by Steve »

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

Post by Bikerbob »

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 »

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 »

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 many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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Bikerbob
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Re: TOS/CPU/&MORE Upgrades for an STE

Post by Bikerbob »

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

Post by PaulJ »

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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