The daemon Mac IIci: Can it be fixed?
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stephen_usher
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Re: The daemon Mac IIci: Can it be fixed?
A complete set of capacitors for the PSU has been ordered. Rather expensive. I had to buy from Farnell as, as usual these days, RS Components just doesn't stock most of the stuff I need.
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.
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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- Posts: 14899
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: The daemon Mac IIci: Can it be fixed?
Have you found any leaky ones at all? You did mention some fishiness in an earlier post.stephen_usher wrote: 11 Jun 2023 12:42 A complete set of capacitors for the PSU has been ordered. Rather expensive. I had to buy from Farnell as, as usual these days, RS Components just doesn't stock most of the stuff I need.
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...
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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stephen_usher
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- Posts: 7380
- Joined: 13 Nov 2017 19:19
- Location: Oxford, UK.
Re: The daemon Mac IIci: Can it be fixed?
I was told that all the motherboard caps had been replaced two owners ago. I can't see any leakage.
I couldn't see any leakage in the PSU, but there's huge amounts of hot snot in there. I'm going to have to desolder practically all of the low voltage caps in one go as they're all stuck together.
I couldn't see any leakage in the PSU, but there's huge amounts of hot snot in there. I'm going to have to desolder practically all of the low voltage caps in one go as they're all stuck together.
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.
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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lilwashu
- Posts: 122
- Joined: 22 Jun 2020 18:31
Re: The daemon Mac IIci: Can it be fixed?
I did all the mainboard caps except the axial ones, all I did in the PSU was clean it, grind the rust off, paint it and remove 5x rifas of which one had already failed (annoyed I missed two of them!).
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stephen_usher
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- Posts: 7380
- Joined: 13 Nov 2017 19:19
- Location: Oxford, UK.
Re: The daemon Mac IIci: Can it be fixed?
Ah, this is a different PSU. Glen kept the original one for his replacement IIci.
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.
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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stephen_usher
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- Posts: 7380
- Joined: 13 Nov 2017 19:19
- Location: Oxford, UK.
Re: The daemon Mac IIci: Can it be fixed?
A quick video of this project...
I'm not a slick YouTuber, you can tell. :-)
I'm not a slick YouTuber, you can tell. :-)
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.
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.
-
stephen_usher
- Site sponsor

- Posts: 7380
- Joined: 13 Nov 2017 19:19
- Location: Oxford, UK.
Re: The daemon Mac IIci: Can it be fixed?
The PSU capacitors have arrived, so I foresee a lot of desoldering and soldering tonight
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.
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
- Site Admin

- Posts: 14899
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: The daemon Mac IIci: Can it be fixed?
I'll think of the fun you'll be having when I'm at Karate tonight :)stephen_usher wrote: 13 Jun 2023 13:28 The PSU capacitors have arrived, so I foresee a lot of desoldering and soldering tonight
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...
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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stephen_usher
- Site sponsor

- Posts: 7380
- Joined: 13 Nov 2017 19:19
- Location: Oxford, UK.
Re: The daemon Mac IIci: Can it be fixed?
Hehe.
Well, the "best" fun is trying to get the circuit boards out of the housing. Aztec don't make it easy.
Well, the "best" fun is trying to get the circuit boards out of the housing. Aztec don't make it easy.
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.
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.
-
rubber_jonnie
- Site Admin

- Posts: 14899
- Joined: 17 Aug 2017 19:40
- Location: Essex
Re: The daemon Mac IIci: Can it be fixed?
Yeah, some Apple PSUs are really not so friendly.stephen_usher wrote: 13 Jun 2023 13:42 Hehe.
Well, the "best" fun is trying to get the circuit boards out of the housing. Aztec don't make it easy.
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...
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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