I did a Rubber Jonnie and bought another computer

[PhilC]

What is it doing right now then? What are the symptoms, if you replaced the ROM, RAM and CPU then there's not a lot left.

Mine needed a CPU and VLA81.

Actually, I need to correct myself. I think its the curse of the single wipe sockets.....

Please Stand By...

[PhilC]

And

20220308_162337.jpg

The screen is flickering every 5 seconds or so, probably due to this back porch mod but all good now :D

[rubber_jonnie]

And

20220308_162337.jpg

The screen is flickering every 5 seconds or so, probably due to this back porch mod but all good now :D

:girldance: :girldance: :girldance:

If you have a back porch mod, it may be clashing with the VLA81, worth checking out the manual and dip switch settings.

As for single wipe sockets, I like to bin them ASAP!!

[PhilC]

@rubber_jonnie yes it looks like it was clashing.

Now going to bin the other two single wipe sockets and we should be good to go.

[stephen_usher]

:cheer: :yay: :dualthumbup: :girldance:

[rubber_jonnie]

@rubber_jonnie yes it looks like it was clashing.

Now going to bin the other two single wipe sockets and we should be good to go.

:cheer: :cheer: :cheer:

[PhilC]

And a couple of dual wipe socket replacements and now we are up and running, although next was to test the Memopak 16k ram pack, which you've guessed it, doesn't work :lol:

[rubber_jonnie]

And a couple of dual wipe socket replacements and now we are up and running, although next was to test the Memopak 16k ram pack, which you've guessed it, doesn't work :lol:

I guarantee it's the edge connector, give it a clean with IPA and a spot of contact cleaner and she'll be right 😁

[PhilC]

And a couple of dual wipe socket replacements and now we are up and running, although next was to test the Memopak 16k ram pack, which you've guessed it, doesn't work :lol:

I guarantee its the edge connector, give it a clean with IPA and a spot of contact cleaner and she'll be right 😁

Yeah I will give that a try but also ha ve a 32k ram chip coming for the internal expansion as well.

[PhilC]

The screen flickering was actually due to one of the electrolytic caps, so I'll get those replaced as soon as possible but looking good so far.

I would never have dreamed of a ZX81 on a VGA screen back when I was 11.

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