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TOS/CPU/&MORE Upgrades for an STE

Posted: Sun Jun 07, 2020 9:04 pm
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)
removed u405.jpg
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u405 socket.jpg
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new u405.jpg
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Reset circuit cap replacements
removed reset caps.jpg
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new reset caps.jpg
new reset caps.jpg (564.93 KiB) Viewed 1478 times
UBE TOS Switcher with fast ROM
removed TOS roms.jpg
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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
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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.

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

Posted: Fri Jun 12, 2020 6:31 pm
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

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

Posted: Fri Jun 12, 2020 6:46 pm
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

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

Posted: Fri Jun 12, 2020 8:20 pm
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:

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

Posted: Sat Jun 13, 2020 12:17 pm
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

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

Posted: Sat Jun 13, 2020 2:55 pm
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

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

Posted: Sat Jun 13, 2020 3:13 pm
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:

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

Posted: Sat Jun 13, 2020 3:21 pm
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!

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

Posted: Sat Jun 13, 2020 3:54 pm
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

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

Posted: Sat Jun 13, 2020 4:13 pm
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: