Uh Oh.Electron inbound

Any 8bit repairs, images, cool things, upgrades etc.
stephen_usher
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Re: Uh Oh.Electron inbound

Post by stephen_usher » Tue Jun 08, 2021 2:14 pm

Oh, soldered in ULA!
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.

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rubber_jonnie
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Re: Uh Oh.Electron inbound

Post by rubber_jonnie » Tue Jun 08, 2021 2:26 pm

stephen_usher wrote:
Tue Jun 08, 2021 2:14 pm
Oh, soldered in ULA!
Yep, so fingers crossed it isn't dead!!
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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rubber_jonnie
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Re: Uh Oh.Electron inbound

Post by rubber_jonnie » Tue Jun 08, 2021 2:46 pm

Looks like a good place to start:

Leaky.jpeg
Leaky.jpeg (71.9 KiB) Viewed 134 times
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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rubber_jonnie
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Re: Uh Oh.Electron inbound

Post by rubber_jonnie » Tue Jun 08, 2021 3:18 pm

Cap removed and tested, and it's dead. Very dead, and certainly not 470uF. I expect the juices evaporated a long time ago, so time to order a replacement, along with one for the cap sat next to it.
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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arkadiusz.makarenko
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Re: Uh Oh.Electron inbound

Post by arkadiusz.makarenko » Wed Jun 09, 2021 7:21 am

You are very lucky!
It is the best board revision available.
Do not trust people. They are capable of greatness.
~ Stanislaw Lem

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rubber_jonnie
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Re: Uh Oh.Electron inbound

Post by rubber_jonnie » Wed Jun 09, 2021 8:44 am

arkadiusz.makarenko wrote:
Wed Jun 09, 2021 7:21 am
You are very lucky!
It is the best board revision available.
I'll have to take your word for it as I am new to these machines. Sounds good to me though :)

Certainly, others I've seen have a socketed ULA, which I've heard can be problematic.

Very simple little machine though.
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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rubber_jonnie
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Re: Uh Oh.Electron inbound

Post by rubber_jonnie » Wed Jun 09, 2021 11:44 am

And spot what's wrong here.....

Bad_Joints.jpeg
Bad_Joints.jpeg (58.44 KiB) Viewed 85 times
Another power board issue. At least I can fix this without ordering components.

EDIT: Aaaand it's fixed :)
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

stephen_usher
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Re: Uh Oh.Electron inbound

Post by stephen_usher » Wed Jun 09, 2021 12:30 pm

Lovely cracked solder on a socket. :-)
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.

User avatar
rubber_jonnie
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Re: Uh Oh.Electron inbound

Post by rubber_jonnie » Wed Jun 09, 2021 12:40 pm

stephen_usher wrote:
Wed Jun 09, 2021 12:30 pm
Lovely cracked solder on a socket. :-)
Not totally obvious from the picture, but the joint on the right hand side was also cracked. I did all 3 joints in the end just in case, but the one closest to the plug end did seem OK.

Still need to wait for the replacement caps though, fingers crossed that'll give me power back.
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

stephen_usher
Posts: 1690
Joined: Mon Nov 13, 2017 7:19 pm
Location: Oxford, UK.
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Re: Uh Oh.Electron inbound

Post by stephen_usher » Wed Jun 09, 2021 2:19 pm

I'd have thought that you'd have a 470uF in stock as they're so ubiquitous.
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.

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