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Which Issue 1 Spectrum model is most desirable - 16K or 48K?Can one of the collectors out there settle a argument between me and my mate? If a 16K and a 48K issue 1 Spectrum, in similar condition, where place…
Can one of the collectors out there ... issue 1 Spectrum, in similar condition, where placed on eBay, which one ... -
Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…
... investigating one of a pair of non-working issue 2 48K ... 4116-2N, apart from one which is an STC ... the board that this last one is a
replacement ... -less exactly like the one in the top picture ... installed in this non-working one (and thankfully works again ... -
Weird issue with 128 Heatsink and IF2 cartI came across a weird issue with one of my 128K heatsink spectrums.... First of all i burned Paul Farrow's 128K RAM tester v 2.06 on a 27C128 eprom …
I came across a weird issue with one of my 128K heatsink spectrums ... on three +2 greys and one 128K heatsink spectrums. (and every ... be? Some kind of incompatibility issue? -
Issue 2 voltage troubleDear all, I got my hands on an old issue 2 from a friend. Price was close to zero so I did not hesitate to take it. After powering it up I was sur…
... my hands on an old issue 2 from a friend. Price ... adjusting the variable resistors and capacitors without any success. Next guess ... some of the RAM or capacitors has a short cut and ... -
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 …
... exactly the same as other one. R57 and C54 are ... same as on the working Issue 2.
-5V - 80K ... same as on the working one.
5V - 1.5K ... .4K Ohms on the working one.
I applied ... monitoring the power lines at one of the DRAMs. 5V ... -
I'm looking for the final issue of Your Sinclair (#93)The "Big Final Issue"... Does anyone have a spare of this one I can buy?
The "Big Final Issue"...
Does anyone have a spare of this one I can buy? -
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 3, noisy display.Has anyone here experienced and been able to resolve a problem that looks like this: [URL="http://drizzle.zigg.net/ZX/ZX106-display.jpg"]Photogra…
... Spectrum has all new electrolytic capacitors and a new 7805. Apart ... . The same measurement on an issue 2 Spectrum that gives a ... -
Difficult to find upper RAM fault.I've recently repaired an issue 3B 48K Spectrum that had a tricky to diagnose upper RAM fault, so I thought I'd post a report of what I found here. …
... 've recently repaired an issue 3B 48K Spectrum that ... a set of new electrolytic capacitors.
After ... should be 2), subtracts one from it and writes the ... now be 1), subtracting one from it and writing ... loop terminates due to one of the test conditions ... -
Looking for Interface 2 and Issue 1 keymat.Okay, i managed to get an interface 2 from italy's eBay. I'm still looking for that grey keymat though... -----------------------------------------…
... trying to make my 48K Issue 1 into a display model ... .
I bought the Issue 1 as a 16K model ... compare the keymat from the Issue 1 with keymats from other ... 's not the light grey one. It perhaps a little lighter ... -
+3e Strange IssueHello there my fellow WoS'ers I am absolutely perplexed by the following problem, I am hoping that someone more enlightened than I can help [I](no…
... ][B]Motherboard:[/B]
[INDENT]Issue 2 Spectrum +3 ([COLOR="Blue ... doesn't work in this one.[/indent]
[B]Speculation ... -
Issue 3 power problemHi all, I have an issue 3 board with an odd power problem, I have no -5V in fact, measuring the voltage on this line leads to a surprising result : …
... />
I have an issue 3 board with an odd ... inductor from another (scrap) Issue 3 board, but still no ... RAM, just in case one of them was shorting.
Issue 3, it does seem to ... and I've not seen one like this before :(
... -
Issue 1 ram connectors....Hi Does anyone have the pinout of the Issue 1 internal RAM connectors, for the 16K-> 48K upgrade board, as I'd like to try and make myself a board, a…
... have the pinout of the Issue 1 internal RAM connectors, for ... board, as getting a genuine one would be almost impossible.....
issue 2 and later ?
Computer repair questionAn ewgf-style post: I'm usually able to find my way around things, search online for solutions and a few other things, but this time I'm unsure of w…
... do see two capacitors leaning slightly and one that is slightly ... thermal paste, apply new one and re-assemble the ... and, for example, change capacitors. I can't say ... SATA ports could be the issue, is it worth using ... almost a week without any issue, and as soon as ...WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
... I've opened this one to discuss about this ... resistors than to solder one big chip with hundreds ... than 5000 components (resistors and capacitors) of all known values. ... thing is the 5V tolerance issue of the FPGA I ... given the size of this one, I'm not sure ...Ever have one of those nights...or days everything seems to be against you, even physics. I go home late after having a extremely busy, but somewhat less productive than usual day …
... work on (yes a specific one that has a specific software ... it to my monitor, the one that's been on the ... mini on my desk without issue (fingers crossed).Spectranet and toastrack issueI've been using my spectranet with no problems on my standard 48k but just started using it on the toastrack and am having an issue. That being that…
... toastrack and am having an issue.
That ... the toastrack the ONLY one that works is the ... locks up)..the 2a/3 one! (with screen corruption ... Thinking it might be an issue with the toasty I ... br /> Any thoughts what this issue might be? I emailed Winston ...NINJA HAMSTER issueHi - wasn't sure where to put this question... BUT... Recently bought a copy of Ninja Hamster- I love the game, its crazy and uses a great combat dyn…
... ...
problem is, the issue is not one I have seen before ... is in anyway a known issue?
It seems like corrupted ...Underground Spectrum Issue 1After months of putting it off, or actually forgetting, I've finally scanned one of the only 2 copies know to still exist of Underground Spectrum iss…
... forgetting, I've finally scanned one of the only 2 copies ... still exist of Underground Spectrum issue 1. This was produced by ...Laptop graphics issue: getting booted out of full-screenHi guys I have a relatively trivial but exremely irritating problem that's driving me nuts. In the last few days I've noticed that if I have an appl…
... should be using. The one on the Samsung website for ... "]link[/URL]) or the one Windows downloaded for me when ... the processes, disabling them one by one to see if I ... d like to resolve this issue by myself if possible ... it isn't a serious issue, but I really miss ...48k Issue 4A power supplyHi, I just repaired a 48k Spectrum+ with an Issue 4A board. The computer worked but the picture was mono with bad contrast and bad synchronizing. I …
... a 48k Spectrum+ with an Issue 4A board. The computer worked ... transverter. After adding an additional one with 100?F the picture ... was fine.
Maybe one of you has the problem ...issue 1 wire broken offHi there have just purchased a issue 1 zx spectrum 48k but there is a wire off on the underside of the board. It is from the ula one goes to the keyb…
... there have just purchased a issue 1 zx spectrum 48k but ... . It is from the ula one goes to the keyboard connector ... of the inderside of a issue 148K ZX Spectrum. Issue 4A.Exclusive to WoS, not advertised anywhere else. For sale is a 48K ZX Spectrum, containing an issue 4A mainboard (in the unusual and pleasing cream c…
... 48K ZX Spectrum, containing an issue 4A mainboard (in the unusual ... colour).
All electrolytic capacitors are new, it provides a ...CapacitorsSorry, another question... I've done a bit of looking around, although after a couple of beers this may not have been as systematic as usual, but I …
... information on the specifications of capacitors that should be used as ... am dealing with an Issue 2 and and Issue 3 board, if ...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 ... trim adjustments available on this issue, but one further complication is that ... when I powered this one up last weekend, this manifested ...Issue 3 weird modification(Doing my best to be a one-man question asking machine tonight - forgive me!) I noticed the following mod that I don't recall seeing anywhere else o…
... my best to be a one-man question asking machine tonight ... seeing anywhere else on my issue 3 board:
[IMG ...Issue 4A issuesHi all, I've been trying to get the Issue 4A board that came DOA with the case I purchased for my Frankenspectrum to work. I've recapped and socket…
... been trying to get the Issue 4A board that came DOA ... ULA works fine in my Issue 3.
I've ... suggestions for fault finding this one?Repairing a torn trace on an Issue 2 PCBI've found what I think could be the reason for my Issue 2 board not working properly... There is a torn PCB trace beneath one end of where a new ULA…
... be the reason for my Issue 2 board not working ... a torn PCB trace beneath one end of where a ... (it was not an original one) rather carelessly, and scraped ... up a trace at one end....
So, ... repair, but see this issue 2 as a challenge!
Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…
... help. I have a nice Issue 4A main board here, which ... with sort of crystals on one side. This is a 16V ... /100uF one, but could it cause the ...Issue 3B(S)?Got an Issue 3B rubber in today, all boxed up but a sticker on it that states it was made in Korea, hmm, 4S then I think, till I opened it up. Same …
Got an Issue 3B rubber in today, all boxed up but a sticker on it that states it was made in Korea, hmm, 4S then I think, till I opened it up. Same colour board as a 4S but its a 3B, first one like this ive ever come across
