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And the PSU went boom, and all the power went off...

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rubber_jonnie
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Re: And the PSU went boom, and all the power went off...

Post by rubber_jonnie »

OK, so I had to get yet another adapter, so 24 pin to 20 pin ATX, as well as the 20 pin to XT/AT style connector, and that arrived today, and there is some good news.

The Dolch LPAC itself works when hooked up to one of my ATX PSU's, so it is just the PSU that's dead. Since the PSU has no obvious signs of failure, I'm going to replace it with a 300W PICO PSU that should have the guts to run it just fine. That should be here Monday so I can start to get that back together then.

Definitely a sigh of relief to see it power on, it would be a difficult machine to replace.
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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rubber_jonnie
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Re: And the PSU went boom, and all the power went off...

Post by rubber_jonnie »

Splendid, my PSU is out for delivery, hopefully I can get this computer back together in the next week as it's making my workshop look untidy with huge parts everywhere!!!
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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rubber_jonnie
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Posts: 15021
Joined: 17 Aug 2017 19:40
Location: Essex

Re: And the PSU went boom, and all the power went off...

Post by rubber_jonnie »

And the PSU arrived and it looks like we are on :)

IMG20240520135925.jpg

Just need to figure out what leads I need to get it all working, still deciding if I want to add a 12v supply internally for the Pico, or just make it an external brick. The external brick would be much simpler that's for sure.
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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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rubber_jonnie
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Posts: 15021
Joined: 17 Aug 2017 19:40
Location: Essex

Re: And the PSU went boom, and all the power went off...

Post by rubber_jonnie »

OK, so all the leads are transferred and the FDD and HDD are all powered and working :)

I decided to keep the PSU external due to a lack of room internally:

IMG20240520190628.jpg

But also because if I find the PSU I have is not powerful enough, I can swap it out easily and just leave the PICO PSU internal as is.

That part will at least fit inside the old PSU and the whole thing'll be neat and tidy.

IMG20240520190547.jpg

Next up I need to wire up the power switch so it works with the new PSU and put it all back together again.

I hate PSUs, especially the ones that go pop!
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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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HigashiJun
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Joined: 19 Jun 2020 07:21
Location: Tokyo

Re: And the PSU went boom, and all the power went off...

Post by HigashiJun »

rubber_jonnie wrote: 20 May 2024 19:54 I hate PSUs, especially the ones that go pop!
:lol:

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