Bad Acorn Day

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rubber_jonnie
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Re: Bad Acorn Day

Post by rubber_jonnie »

HigashiJun wrote: Fri Nov 29, 2024 9:46 am
rubber_jonnie wrote: Fri Nov 29, 2024 9:22 am The trouble is, as you know it's a huge pain to disassemble, and I don't want to get into another huge repair on it at the moment.
I understand, and with all your projects in stand by mode, it's not an easy task.
It's going to be a slow burner...

I need to have a bit of a switch around of workspace in my office so I can get the A5000 into a spot where I can continually work on it without blocking my workbench, I don't have that at the moment.

I'm also wondering if some more caps have given way as I already replaced quite a few in the RAM circuit.
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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Re: Bad Acorn Day

Post by alexh »

With my A5000 the battery corrosion went under the FLOPPY connector and UNDER the IDE connector and only by removing them is it possible to "stop the rot" so neither the IDE nor the FLOPPY work on mine :(
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HigashiJun
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Re: Bad Acorn Day

Post by HigashiJun »

rubber_jonnie wrote: Fri Nov 29, 2024 10:21 am It's going to be a slow burner...

I need to have a bit of a switch around of workspace in my office so I can get the A5000 into a spot where I can continually work on it without blocking my workbench, I don't have that at the moment.

I'm also wondering if some more caps have given way as I already replaced quite a few in the RAM circuit.
Time to get out your POST Box...
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HigashiJun
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Re: Bad Acorn Day

Post by HigashiJun »

alexh wrote: Fri Nov 29, 2024 11:01 am With my A5000 the battery corrosion went under the FLOPPY connector and UNDER the IDE connector and only by removing them is it possible to "stop the rot" so neither the IDE nor the FLOPPY work on mine :(
That's what I did on my A5000, and it was a real mess under each connector.
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rubber_jonnie
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Re: Bad Acorn Day

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HigashiJun wrote: Fri Nov 29, 2024 11:07 am
alexh wrote: Fri Nov 29, 2024 11:01 am With my A5000 the battery corrosion went under the FLOPPY connector and UNDER the IDE connector and only by removing them is it possible to "stop the rot" so neither the IDE nor the FLOPPY work on mine :(
That's what I did on my A5000, and it was a real mess under each connector.
I don't have a post box :) I managed it all through the FDD post codes. I did remove my FDD and IDE connectors and it quite a lot to repair, but they do still work, but I felt the SCSI adapter was a better way forward due to the existing damage and the fact I could reduce power requirements using BlueSCSI for hard drives.

Anyway, it's off my desk now (It was doing double duty as a monitor stand for one of my work displays) and has been replaced for monitor raising duties by my Performa 6200 PowerPC Mac.

IMG20241129130649.jpg
IMG20241129130649.jpg (321.27 KiB) Viewed 67 times

I just need to clear a spot to allow me to work on it easily, so my re-balling machine is going to need to move. It hasn't been busy lately so it can move elsewhere whilst I need the space.
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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Re: Bad Acorn Day

Post by rubber_jonnie »

Also just arrived:

IMG20241129124944.jpg
IMG20241129124944.jpg (333.74 KiB) Viewed 65 times

More fun when I get home from training 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...
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PhilC
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Re: Bad Acorn Day

Post by PhilC »

Just a thought, looking at that rom board, its similar to one I have and I think you will struggle to get it in place with that 1770 board as the 1770 sits right where you need top put the rom board as well (see the cutout on it, that's to go round the keyboard connector).
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rubber_jonnie
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Re: Bad Acorn Day

Post by rubber_jonnie »

PhilC wrote: Fri Nov 29, 2024 1:25 pm Just a thought, looking at that rom board, its similar to one I have and I think you will struggle to get it in place with that 1770 board as the 1770 sits right where you need top put the rom board as well (see the cutout on it, that's to go round the keyboard connector).
The 1770 board I have hangs over to the left specifically to avoid that sort of clash :)
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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Re: Bad Acorn Day

Post by rubber_jonnie »

Busy lunch break today, got the A5000 into a space where I can work on it:

IMG20241129141439.jpg
IMG20241129141439.jpg (248.6 KiB) Viewed 56 times

However, I'm wondering if the problem all along has been power as the PSU seems to no longer want to start...

I also got a BBC floppy cable made too:

IMG20241129135801.jpg
IMG20241129135801.jpg (334.35 KiB) Viewed 56 times

It all buzzed out perfectly so I am good to go for some more testing later.
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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Re: Bad Acorn Day

Post by HigashiJun »

rubber_jonnie wrote: Fri Nov 29, 2024 2:20 pm Busy lunch break today...
I wonder how you manage to take your lunch while working on your machines...

I would rather call it a retro lunch.

:lol:
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