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  • 48K keyboard issue48K issue 3b reads keys without... keyboard. Looking at recorded keys, problems seems to be with one data line - D1. It happens after a while since p…

    48K issue 3b reads keys without... ...
    kpuchatek kpuchatek June 2014 Hardware
  • 48k temperamental loadingHi, Was using my 48k this evening using the Speccy tape app via my iPad as usual. First game loaded up ok, but then from there on in nothing at al…

    ... ,

    Was using my 48k this evening using the Speccy ...
    chinnyhill10 chinnyhill10 June 2014 Hardware
  • 48K rgb output? Also, OTLA.A couple of weeks ago I scored 2 48K Spectrums on eBay for ?27 with 1 PSU, 1 TV cable and about 10 tapes....score or what!!!! One turned out to be a…

    ... weeks ago I scored 2 48K Spectrums on eBay for ?27 ... mod conversion on the 2 48K Speccys and I do get ... /> So I tried putting the 48K through it, but the GBS8200 ... a way to get the 48k to hook up to an ... RGB input? 48K to SCART RGB would be ...
    Ricardo99 Ricardo99 June 2014 Hardware
  • Composite video mod on +2 grey: same as 48k?Hello all, Sorry for the n00b question but I couldn't find an answer yet... I did a composite video mod for the 48k in the past. Now I got a 128k +…

    ... composite video mod for the 48k in the past. Now I ... the video circuit in the 48k and the +2 grey exactly ...
    robertod robertod June 2014 Hardware
  • Power sockets for 48k'sPretty sure there was a thread about these not long ago but I cant find it. Basically im after the power in socket for 48k's and grey +2's, got two …

    Pretty sure there was a thread about these not long ago but I cant find it. Basically im after the power in socket for 48k's and grey +2's, got two here that require one each. Anyone point me in the right direction?
    Macc Macc June 2014 Hardware
  • 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…

    ... have an issue 2 spectrum 48k and wanted to know if ...
    morcar morcar June 2014 Hardware
  • Issues with 48k spectrum and divIDEI heard you can have all kinds of issues with 48k spectrum and certain DivIDE models. Is this true and if so what should I look out for ? Only aski…

    ... all kinds of issues with 48k spectrum and certain DivIDE models ...
    morcar morcar June 2014 Hardware
  • Plus board to 48kThis will sound daft to some no doubt, but is it ok to put a + mainboard into a 48k rubber keys one and expect the keys to work correctly? I have a …

    ... put a + mainboard into a 48k rubber keys one and expect ...
    owdeuk owdeuk July 2014 Hardware
  • Faulty(?) ZX81 plus ZX8-CCB boardHello, I have an apparently faulty ZX81 with a ZX8-CCB video out board for sale. It was working last time I had it put together, around this time las…

    Hello, I have an apparently faulty ZX81 with a ZX8-CCB ...
    pmsr pmsr July 2014 Sales
  • 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…

    ... so I dugout my old 48K Speccy today and decided to ...
    Beaps Beaps July 2014 Hardware
  • 48k PSU Alternatives & DivIDE v DivMMCHey folks, The 48k Speccy I got rather recently is missing it's power supply (though, I know it's working from testing it with the power supply from…

    Hey folks,

    The 48k Speccy I got rather recently ...
    robc robc July 2014 Hardware
  • ZX Spectrum 48K Issue 3, loss of -5V rail.Hi all, I've googled this problem and poured over the electrical diagrams for the circuitry concerning the power supplies and I believe I know what …

    ... />
    I recently purchased a 48K Spectrum from eBay. On powering ...
    Leeorg Leeorg August 2014 Hardware
  • 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 …

    ... :

    Spectrum: Issue 2, 48k
    Initial problem: Yellow screen ... returned 93, so IC18 deemed faulty. Replaced IC18 with socketed 4164B ... returned 171, so IC15 deemed faulty. Replaced IC15 with socketed 4164B ...
    Trafferth Trafferth August 2014 Hardware
  • The complete Stormbringer (48k) RAM disassemblyIt's finally time to unveil the last of my Magic Knight disassemblies - [URL="http://community.dur.ac.uk/philip.anderson/disassemblies/stormbringer-4…

    ... .uk/philip.anderson/disassemblies/stormbringer-48k/"]Stormbringer 48k[/URL]!

    As ...
    Weyoun Weyoun August 2014 Announcements
  • Spectrum 48k "console"As title says... I'm after a 48k please?

    As title says... I'm after a 48k please?
    dreamscape dreamscape August 2014 Wanted
  • 1st interface in 30 years (update)Hi all, Just a wee update to my "1st ZX interface in 30 years" project. Main IC's: 82C55 three 8-bit port I/O (configured for 12 dig in, 12 dig out…

    ... switch back to using a 48K Spectrum (rubber keys) as my ... ZX interface is different, or faulty mem in the toastrack......who ...
    IanJ IanJ August 2014 Hardware
  • 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_…

    ... all

    Got my 48k today but it's playing ...
    dreamscape dreamscape August 2014 Hardware
  • 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…

    ... trying to repair my Spectrum 48k. It is having issues loading ...
    wep855 wep855 August 2014 Hardware
  • Free Faulty Original Sinclair ZX81 16k Ram expansionI bought this on ebay, was found to be faulty, when plugged in the screen froze and the "K" vanished. Thanks to a forum member I now have a workin…

    ... ebay, was found to be faulty, when plugged in the screen ...
    lesoleil70 lesoleil70 August 2014 Sales
  • Upper Memory LinksI've got an 1982 Issue Two Spectrum 48k with an upper RAM fault. I've narrowed down the faulty IC and I'm in the process of removing the 8 IC's, sock…

    ... 48k with an upper RAM fault. I've narrowed down the faulty ...
    retrogamemart retrogamemart September 2014 Hardware
  • Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…

    ... . I have a working Spectrum 48k with a 3B board I ... tell (the membrane is partly faulty on the keyboard so no ...
    Wiggs Wiggs September 2014 Hardware
  • 48k Spectrum "Jail Bars" Removal?Hi all Just curious I think I saw a post here about the bars that go down the screen on some 48k's I think he referred to them as "jail bars". Any…

    ... down the screen on some 48k's I think he referred ... ]http://ridgedpixel.co.uk/projects/48k/29.jpg[/IMG]
    dreamscape dreamscape September 2014 Hardware
  • 16k to 48K upgradeHi everyone I was just wondering if anybody knows if it is possible to upgrade a 16k Speccy to a 48k with the required RAM chips. If this is possibl…

    Hi everyone

    I was just wondering if anybody knows if it is possible to upgrade a 16k Speccy to a 48k with the required RAM chips. If this is possible where would i get them from.

    thanks a lot

    Benammi
    benammiswift benammiswift September 2014 Hardware
  • Pictures of 48k ZX Spectrums Showing the Important Voltages[SIZE=6][B]Pictures of 48k ZX Spectrums Showing the Important Voltages[/B][/SIZE] [URL="https://farm4.staticflickr.com/3841/15005543009_7bcf3b3031_o…

    [SIZE=6][B]Pictures of 48k ZX Spectrums Showing the Important ...
    1024MAK 1024MAK September 2014 Hardware
  • 48K misplaced coloursHello to everybody! Slowly recapping a otherwise working Issue 6A 48K. All new caps aroud LM1889, 7805 and DC-DC converter, which improved ripple an…

    ... a otherwise working Issue 6A 48K. All new caps aroud LM1889 ...
    Falco-F8L Falco-F8L September 2014 Hardware
  • 48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …

    ... try to load anything for 48k the speccy just don't ...
    retrogamemart retrogamemart September 2014 Hardware
  • Issue 6 repair with a twist...(Starting with a slight grump - the forum ate my first attempt at this so this'll probably end up being a bit terse :)) I got a Issue 6 48K machine …

    ... I got a Issue 6 48K machine in a couple of ... which was sold as faulty due to coloured blocks appearing ... br />
    I suspected faulty upper RAM trashing the stack ... in that location in the faulty areas.

    ... - I've retained the faulty IC anyhow, so I ...
    balford balford September 2014 Hardware
  • 48k TV IssuesHi all Quick question, how can i improve my 48k picture? (without composite mods...) currently it looks like this: [IMG]http://s26.postimg.org/oox…

    ... , how can i improve my 48k picture? (without composite mods...)
    dreamscape dreamscape September 2014 Hardware
  • Spectrum 48k Power On ProcessI have a 48k Spectrum here that maybe does something strange on power on. Could somebody confirm what is meant to happen when power is applied? On …

    I have a 48k Spectrum here that maybe does ...
    wep855 wep855 October 2014 Hardware
  • 128k Toastrack Problem...Ok, so I sold a 128k Toastrack on eBay, absolutely fine, perfect working order, etc (not needed since i've got a +2e now.) Returned faulty, with a c…

    ... got a +2e now.) Returned faulty, with a couple of issues ... it...) but testing with a 48k+ PSU shows the machine has ...
    SimonLCFC SimonLCFC October 2014 Hardware
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  • Fixed Speccy Software. And which games remained unfixed?
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  • 48k / 48k+ Keyboard MembranesCan anyone out there help me to locate a set of new keyboard membranes for my Speccy 48k (rubber keys) and 48k+ . <br /> I've just dusted them off af…
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