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ZX Spectrum 48K AV IssueOK so I dugout my old 48K Speccy today and decided to AV mod it. I did the mod (pretty easy) but the picture I am getting is this. [url=http://posti…
1) Are you getting the +12v/-5v measurements on the lower RAM sockets? If so then TR4 is probably fine.
2) With the lower RAM removed, do you get a display like the one Zorn posted?
B -
ZX81 + 16k RAM Pack + Original PSU... What's it worth?Hey guys Got my ZX81 this morning its in excellent condition.. [IMG]http://s30.postimg.org/iwetzxku9/IMG_20140818_142443.jpg[/IMG] However, my T…
... videos on You tube like Zorn has done for the Spectrum ... -
Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…
... on a board that has Zorn's LRRM would still make ... -
Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…
... on a board that has Zorn's LRRM would still make ... very little effect whatsoever, as Zorn's LRRM does not use ... -
Next step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …
[QUOTE=Zorn;786886]I think you've ... sell.[/QUOTE]
Thanks Zorn, replacing the lower memory would ... -
Next step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …
... good start and have watched Zorn's video's and have ... it on to somebody like Zorn or Spirantho.
Remember ... levels are ok now, fit Zorn's lower RAM board and ... -
Next step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …
... good start and have watched Zorn's video's and have ... it on to somebody like Zorn or Spirantho.
Remember ... levels are ok now, fit Zorn's lower RAM board and ... -
Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... bridged to another pin, as Zorn's module doesn't use ... -
I have returned! This time with no tape problems!Hello all. Some of you may remember me from about a month or so ago with this little spawn of satan... :lol: [IMG]http://www.ridgedpixel.co.uk/proj…
... to replace the regulator as Zorn told me they tend to ... -
Short Circuit Damage?Hey Spectrum fans, Currently trying to diagnose what is wrong with my 48K Issue 4B ZX Spectrum. The initial problem was the fact it would not boot -…
... test voltages
As Zorn Said, check you have the ... little lower RAM boards that Zorn sells and save myself from ... -
Short Circuit Damage?Hey Spectrum fans, Currently trying to diagnose what is wrong with my 48K Issue 4B ZX Spectrum. The initial problem was the fact it would not boot -…
... had seen the replacement module Zorn sells and that was actually ... -
48K Ram Check Command not workingI am trying to repair my Spectrum 48k. It is having issues loading games, sometimes they load all the way to launch and then the speccy resets. Oth…
... ram?[/QUOTE]
As Zorn said, fault is in upper ... -
Spectrum 48k ProblemsHi all Got my 48k today but it's playing up abit... First time i turn it on it was like this: [IMG]http://s26.postimg.org/hlg9d3f3d/IMG_20140830_…
... .youtube.com/playlist?list=PL4H3oOJzIQMkKiG94z2x0laC7gqqmwBE8"]Zorn's repair videos on YouTube ... -
Spectrum 48k ProblemsHi all Got my 48k today but it's playing up abit... First time i turn it on it was like this: [IMG]http://s26.postimg.org/hlg9d3f3d/IMG_20140830_…
... with the comments made by Zorn.
I strongly recommend ... -
Spectrum 48k ProblemsHi all Got my 48k today but it's playing up abit... First time i turn it on it was like this: [IMG]http://s26.postimg.org/hlg9d3f3d/IMG_20140830_…
... computer itself. I agree with Zorn, your symptoms strongly suggest lack ... -
Faulty 48+ Help NeededHi, This is what I get when I plug in the spectrum, this is tuned in. Vid shows a reset. Any ideas, or pointers on the first thing to check. Keyboa…
C46 Capacitor MarkingHi all I've just watched this part of this video: [url]http://www.youtube.com/watch?v=TeCVt2T-YSo&t=17m0s[/url] And he says the marking is incorrec…
Thanks guys for the positive feedback. Just feel very deflated after all this I thought i had done a pretty good job and then BAM!
Zorn, I will send you a PM.48k - Why Won't it Buzzzz?Hi WOS ;) I bought a load of Spectrum games off eBay and thrown in for good measure was a 48k 1984 Issue 6a circuit board that I was told was for sp…
You should find [URL="http://youtu.be/IzgCmldm2H4"]this[/URL] video useful (we really need a sticky thread for Zorn's videos :))
BSpectrum 48k ProblemsHi all Got my 48k today but it's playing up abit... First time i turn it on it was like this: [IMG]http://s26.postimg.org/hlg9d3f3d/IMG_20140830_…
Zorn and Spirantho offer a repair service, it's not as difficult as ya think. Wait til your package arrives dude ;)48k - Why Won't it Buzzzz?Hi WOS ;) I bought a load of Spectrum games off eBay and thrown in for good measure was a 48k 1984 Issue 6a circuit board that I was told was for sp…
... sockets and buy one of Zorn's lower RAM boards. That ...48k - Why Won't it Buzzzz?Hi WOS ;) I bought a load of Spectrum games off eBay and thrown in for good measure was a 48k 1984 Issue 6a circuit board that I was told was for sp…
[QUOTE=balford;789887]You should find [URL="http://youtu.be/IzgCmldm2H4"]this[/URL] video useful (we really need a sticky thread for Zorn's videos :))
B[/QUOTE]
Agreed!'Interesting' Issue 2 modSo I've been lurking on this forum for a while and I've got to the point where I want to see if I can repair a speccy.. so I bought me a 'broken' one…
... Farnell)
[*]Fit one of Zorn's lower RAM replacement modules ...

