Print Page - Dead spiders in my 6128

Title: Dead spiders in my 6128
Post by: Rabs on 18:10, 10 October 22

Has anyone had a 6128 that looks like it has been left outside? Oddly the case looked OK but the pcb told a different story.

After cleaning up it actually worked.

Still amazed these things work after being in such a state.

So far just one dead ram ic in the upper bank?20221007_125834 (1).jpg 20221007_125759.jpg 20221007_125751~2.jpg

Title: Re: Dead spiders in my 6128
Post by: BSC on 20:02, 10 October 22

Seems you hosted a spider who was not too keen on cleaning up behind her.

Title: Re: Dead spiders in my 6128
Post by: Rabs on 21:45, 20 October 22

My first RAM fix. :)20221020_204247.jpg 20221020_212201.jpg

Title: Re: Dead spiders in my 6128
Post by: Rabs on 23:00, 20 October 22

Just noticed that I replaced the RAM with a -10. The originals are -12. Does this matter?20221020_223948~2.jpg

Title: Re: Dead spiders in my 6128
Post by: eto on 23:09, 20 October 22

Quote from: Rabs on 23:00, 20 October 22Just noticed that I replaced the RAM with a -10. The originals are -12. Does this matter?

It just means your new RAMs could work at higher clock speeds than the old ones. But that would only be relevant for computers with much higher clock speeds than the CPC.

Title: Re: Dead spiders in my 6128
Post by: Rabs on 09:52, 21 October 22

Learnt that when attempting any restore you should clean the power switch first. Prevents those heart stopping moments when the CPC does not power back on.

Before cleaning, and this was enough to sometimes stop the CPC from powering back on.

Before.jpg

After cleaning

After.jpg

Title: Re: Dead spiders in my 6128
Post by: Rabs on 11:52, 21 October 22

Drive now working. Belt was a mess.

DriveBelt.jpg

And did not loose the write protect pin ;)

WriteProtectPin.jpg

Title: Re: Dead spiders in my 6128
Post by: Rabs on 16:47, 21 October 22

On with the keyboard cleaning and it is a bit dirty.

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And some of the springs are rusty. What is the best approach with these?

20221021_163751~2.jpg

Title: Re: Dead spiders in my 6128
Post by: Animalgril987 on 18:53, 21 October 22

Ultrasonic bath should dislodge most of the surface corrosion on those springs.

Title: Re: Dead spiders in my 6128
Post by: Rabs on 20:00, 21 October 22

Quote from: Animalgril987 on 18:53, 21 October 22Ultrasonic bath should dislodge most of the surface corrosion on those springs.

Thanks sounds like something I should put on by Christmas list 🙂. Cleaned them best I could and replaced a few of the bad ones.

Think I am done.

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20221021_194759~2.jpg

Title: Re: Dead spiders in my 6128
Post by: Rabs on 18:34, 30 October 22

So, I was not done! Second RAM IC failed during a soak test. Now I understand the value of the soak test in the diagnostics ROM. Fixed and has now been running multiple soak tests over several days and all good.

2nd RAM fixed.jpg

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General Category => Technical support - Hardware related => Topic started by: Rabs on 18:10, 10 October 22