-
Repairing another Issue 2 48K Spectrum.I said at the start of the other thread that I've got another one of these and I've started investigating it. The board is more-or-less exactly the …
... the ones on the other Issue 2 Spectrum.
A resistance ... same as on the working Issue 2.
-5V - 80K Ohms and ... 's primary measures as 0.2 Ohms and the secondary 0 ... -
Can anyone test my Issue 2 ULA?Hi guys, Could anyone with a Issue 2 Speccy try whether my ULA works in theirs? I will obviously cover postage etc. Just want to know whether I have…
Hi guys,
Could anyone with a Issue 2 Speccy try whether my ULA works in theirs? I will obviously cover postage etc. Just want to know whether I have a faulty ULA or not before trying to source one from somewhere. -
48K issue 2 needs 5 seconds to bootupI have an issue 2 board here that needs some seconds to boot up. So when connecting it, it shows black and white blocks, and then after some seconds…
I have an issue 2 board here that needs some ... : is there interest in an issue 2 board? -
Issue 2 colour modification?While working on my issue 2 spectrum, I start to think about how it would be good if the annoying VR1/VR2 could be removed and a solution similar to …
While working on my issue 2 spectrum, I start to think about how it would be good if the annoying VR1/VR2 could be removed and a solution similar to that of the issue 3 could be implemented. Has anyone tried this and have any experiences to share? -
My Issue 2 spectrum"IT'S ALIVE!!!!!" - Dr Frankenstein I got my issue 2 spectrum up and running, colours and all. I borrowed socketed lower ram from my issue 3 that is…
...
I got my issue 2 spectrum up and running, colours ... socketed lower ram from my issue 3 that is working (a ... it is finally fixed, my Issue 2 spectrum 48k lives with new ... 780008C), memory borrowed from my Issue 3S (to be replaced by ... -
"MONOCHROME": Magazine about ZX81 (issue 2 - 2012)[b]OK, seems like every subscriber got his paper copy. So, hereby I publish an electronic - PDF - version of "MONOCHROME" ZX81 magazine (issue 2 - …
... - version of "MONOCHROME" ZX81 magazine (issue 2 - 2012).
[url]http://zx81 ... -
ULA6C001E-7 and 48K Issue 2Dear Sirs, Could you please let me know if ULA6C001E-7 or ULA6C001E-6 chip was suitable for 48K board issue 2 ? I heard some mods are neccessary…
... was suitable for 48K board issue 2 ?
I heard some ... -
Issue 2 Failed 48k to 128k upgradeI have been trying to upgrade my Issue 2 with the help of Velesoft, using this schematic; [IMG]http://i764.photobucket.com/albums/xx284/arioch1973/4…
... been trying to upgrade my Issue 2 with the help of Velesoft ... -
16k Issue 2 board and DivIDE load errorsI today got an Issue 2 16k board (thank you PMSR) that i added the logic and ram on to get a 48k machine. However, I am unable to load software from …
I today got an Issue 2 16k board (thank you PMSR) ... -
Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
Ive got an issue 2 here that firstly had a ... whole upper RAM, still same issue, Paul Farrows RAM tester produced ... -
Successfully updated Issue 2 48k to 128k?Thanks to the donation by PMSR and through the very patient teachings of Velesoft, I have updated the Issue 2 to work with 128k. However. I have yet …
... Velesoft, I have updated the Issue 2 to work with 128k. However ... -
Issue 2 problemHeres a video of what happens when I fire up an Issue 2 board ive had hanging around for ages, this is with Paul Farrows RAM test cart in btw If this…
... when I fire up an Issue 2 board ive had hanging around ... -
Issue 2 video problemHello all, Need some help with an issue 2 board that I 'm trying to restore. I've replaced all the electrolytic capacitors, changed the voltage regu…
... /> Need some help with an issue 2 board that I 'm trying ... have no problems with another issue 3 board. My knowledge in ... -
Compatible Memory Chips for Issue 2 48K MotherboardHi I was wondering if anybody have a list of manufacturer chips which is compatible with the Issue 2 48K Motherboard, especially the upper 32K RAM.…
... which is compatible with the Issue 2 48K Motherboard, especially the upper ... must be used in the Issue 2, where Issue 3 will work with ... OKI. I just repaired an Issue 2 board and found that 7 ... -
ZX Spectrum 48k Issue 2 Faulty Ram?Hi, I have a faulty ZX Spectrum Issue 2 motherboard. Looks in very tidy condition. Though I'm getting random columns of blocks and flashing cursors…
... have a faulty ZX Spectrum Issue 2 motherboard. Looks in very tidy ... -
Issue 2 colour problemsHey all, I've got a slight colour problem with my Issue 2 Spectrum, as can be seen below: [IMG]http://www.bennyalford.com/images/issue2a.jpg[/IMG] …
... slight colour problem with my Issue 2 Spectrum, as can be seen ... trim adjustments available on this issue, but one further complication is ... -
Issue 2 crashes after about 30 minsHi Guys, I have an Issue 2 zx spectrum that seems to get graphic corruption after about half hour of playing, then finally falls over and crashes. …
... ,
I have an Issue 2 zx spectrum that seems to ... -
Issue 2 with 5C102E + cockroach on eBay(Posted here and not sales as it's not mine :)) Came across [URL="http://www.ebay.co.uk/itm/151225493166"]this[/URL] earlier - early Issue 2 board, …
... /151225493166"]this[/URL] earlier - early Issue 2 board, complete with 5C102E ULA ... -
Help with an issue 2Hello friends, Today, sadly, my issue 2 board lost his 5c112 ULA, and on my spares list I only had a 6c one that worked fine after swapping it. Now I…
... friends,
Today, sadly, my issue 2 board lost his 5c112 ULA ... -
New user with a dead 48k issue 2Hello all I've found my way here from watching some excellent youtube videos by Joulesper Coulomb in an attempt to fix a issue 2 rubber key 48k I bo…
... an attempt to fix a issue 2 rubber key 48k I bought ... -
48k issue 2I have an issue 2 spectrum 48k and wanted to know if i wanted to change the z80 is ther any fix so i dont have that 1 component hugging the z80 [img…
I have an issue 2 spectrum 48k and wanted to ... -
Seriously weird Issue 2 issue... (RAM-related)Hi guys; I have been trying to fix up my Issue 2 and have run across a bizarre issue that I haven't seen elsewhere in the forums. Hopefully one of …
... trying to fix up my Issue 2 and have run across a ... bizarre issue that I haven't seen ... the narrative:
Spectrum: Issue 2, 48k
Initial problem: Yellow ... tweaking of VR1,2 fixed the colour issue.
2. MEMCHK returned 32767 ... -
Dodgey R62 / D16 on Issue 2?Hello all, I am still beavering away trying to work out why my Issue 2 fails and after a much closer visual inspection I noticed what looks like som…
... to work out why my Issue 2 fails and after a much ... that R79 2k2 (Issue 6) or R62 15R (Issue 6) or R55 ... 56R (Issue 4 and less ... -
Issue 2 Spectrum - Black screenHi I have an issue 2 spectrum which I'm having some issues with. I bought it on ebay so have no idea of the history or how it came to be broken. Whe…
...
I have an issue 2 spectrum which I'm having ... measured the resistance of pin 2 of the lower RAM and ... very low reading on pin 2.
I replaced the offending ... another note, I had an Issue 3 Spectrum that was also ... -
Issue 2 Upper Ram, Loading & ResettingI have a 48k Issue 2 Speccy and for the life of me can't track down what the problem is with it. I initially thought that some of the uppe ram ic's w…
I have a 48k Issue 2 Speccy and for the life ... known good ram from another Issue 2, same chips with same suffix ... -
48k issue 2 video issueHi folks. I am currently tring to fix an issue 2 board. I was getting the yellow greenish screen. (also there there is a lower ram fault with it i th…
... currently tring to fix an issue 2 board. I was getting the ... -
No colors on screen, issue 2.I have a 48k issue 2 with composite mod. When i first pluged it in after i bought it, the screen went yellow and after restart there were no colors a…
I have a 48k issue 2 with composite mod. When i ... -
Spectrum 128k +2 issue 2I am wanting a Grey 128k +2 issue 2 machine. Preferably working but doesn't matter too much if not as long as it is complete. Thanks
I am wanting a Grey 128k +2 issue 2 machine. Preferably working but doesn't matter too much if not as long as it is complete.
Thanks -
48K Issue 2 Spectrum showing exactly 16KI've acquired an issue 2 and it quickly became clear that only 16K of memory is available. I've read that some early 48K Spectrums with malfunctionin…
I've acquired an issue 2 and it quickly became clear ...
