Issue 6A ZX Spectrum 48K repair - eBay gamble - Lower RAM Fault Hunt
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- Опубликовано: 8 сен 2024
- I took a gamble on a broken 48K from eBay. Did it pay off? Let's find out
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happylittledio...
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you are insaine man keep saving our childhood memory's.
nice fix, great videos and loving the channel..... yes i watched manic miner load all the way, never bored of those lovely sounds , im sure i hear music lol
Ha ha... I like how you glossed over the membrane being installed backwards. ;-) Nice repair!!!
I was wondering who would spot that first!
Nice repair. I've never had any luck trying to repair those membranes. They just go so brittle. The stuff that the new ones are made of is a lot better. I don't think I'd have gone to the effort of taking the socket out and repairing it in the top side, I would just solder a wire on the bottom. It does look tidier if hidden under the chips though.
Yes that's the way I go now. Much easier
Nice vid. I have 2 speccys here that I hope one day to get working again...
You can do it!
It's a real shame you were talking for the header part of Manic Minor.
I was going to see if I could load it from your video, just for kicks.
Great videos.
I'm on a similar Speccy journey, buying them from eBay and hoping I get one not working so I can fix them.
Also hoping that one of them will be an issue one.
wow good music at the begining
Kynar wire is perfect for repairing traces and gives you a much neater looking repair.
Yes I have seen the light now, I have a reel of galvanised copper wire, already used once to patch up joints under a ULA
@@HappyLittleDiodes : It's like everything else in life, we live & learn 👍.
One thing I noticed is that someone replaced all the capacitors that decouple the memory chips, with what looks like dipped bead "tag" tantalums! Thats an incredibly daft idea - tant's well known failure mode is to overheat and burn!
I see later on that they look more like regular ceramic disc capacitors. Never seen those fitted to a Spectrum - i guess whoever replaced the ram chips and fitted sockets managed to damage them - probably by levering the chips out of the board, which is how they also caused the damaged trace you found!
Maybe it was better to leave the original PRO sockets there, because on the third RAM pin 1 and 10 are bad at first glance and repair the connection from below.
I'll consider that, thanks.