Author Topic: Resurrecting an Acorn Electron / Mods  (Read 528 times)

Offline Vyothric

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Resurrecting an Acorn Electron / Mods
« on: February 11, 2013, 14:45:50 PM »
So, I had a faulty Acorn Electron. The problem was the ULA socket. In the earlier (I think) revisions the chip is socketed and the pins can break. Finding a replacement 68 pin CLCC socket was not that easy. Had to ask a Swedish guy on eBay to sell me one.

You can see some more information on this problem here

I got the new socket...




De-soldered the old one (you can see the broken pins)






Soldered the new socket and put the chip in:







Closed it up, hoped for the best and switched it on:



If anyone else ever does this, just remember to make sure you put the socket in the right way (make note of which way the chip is facing).

----------------------------------------------------------------

I also made a couple of small modifications while I was at it. If you bridge LK4 you'll get colour output via composite (why this isn't enabled by default I don't know). Just stick a blob of solder on it.




And I turned the RF output into an audio socket. Just desolder the connection to the RF's RCA socket and solder a wire that goes from the +ve side of the speaker output to the RCA socket.




There's a hole in the side of the RF box that you can put the wire through:


Offline TL

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Re: Resurrecting an Acorn Electron
« Reply #1 on: February 11, 2013, 14:48:32 PM »
Nice one Vyo  8)

Offline zapiy

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Re: Resurrecting an Acorn Electron
« Reply #2 on: February 11, 2013, 14:59:24 PM »
Brilliant work you should start a repair service.
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Offline Vyothric

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Re: Resurrecting an Acorn Electron / Mods
« Reply #3 on: February 11, 2013, 17:20:49 PM »
Added a bit of info about a couple of minor mods.

Offline dougtitchmarsh

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Re: Resurrecting an Acorn Electron / Mods
« Reply #4 on: February 11, 2013, 18:09:45 PM »
Great work and super clear pictures. Always interesting to see these mods and repairs and how they are being done. Keep them coming Vyothric  8)
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Offline onthinice

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Re: Resurrecting an Acorn Electron / Mods
« Reply #5 on: March 23, 2013, 02:49:37 AM »
:16: