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<1…15161718192021…34>
  • Recommend Monitor for Speccy +2Just bought a speccy +2 to play on in my studio on downtime, can anyone recommend a good RGB monitor for it?? as the TV signal is a bit migrane indu…

    ... 16k-48k+), RGB input (spectrums 128k+ to +3) and output ... VGA ... ) - I will place here the schematic for that.

    Ingo ...
    ingo ingo February 2009 Hardware
  • Recommend Monitor for Speccy +2Just bought a speccy +2 to play on in my studio on downtime, can anyone recommend a good RGB monitor for it?? as the TV signal is a bit migrane indu…

    ... ) - I will place here the schematic for that.

    Ingo ... do this (for my spectrums 128k+ and later) but I would ...
    thomas3120 thomas3120 February 2009 Hardware
  • Recommend Monitor for Speccy +2Just bought a speccy +2 to play on in my studio on downtime, can anyone recommend a good RGB monitor for it?? as the TV signal is a bit migrane indu…

    ... ) - I will place here the schematic for that.

    Ingo ... to see the schematic. I have a Spektrum 128K and QL, and ...
    KatManDEW KatManDEW February 2009 Hardware
  • RBG monitor for Spectrum?I'm using a very old TTL RGB monitor with my Spectrum, with a RGB adapter that I made many years for my Sinclair QL. It works perfectly with my QL, b…

    So you've got a 128K +2 grey model. Then, I ... the RGB socket. Use this schematic to aid you:

    mcleod_ideafix mcleod_ideafix September 2009 Hardware
  • New stereo audio board for fitting on AY chip - interested?Hi, I developed a small board that fits on the AY chip inside 128K ZX Spectrums: [IMG]http://www.benophetinternet.nl/hobby/vanmezelf/stereo_audio.j…

    ... Ingo's version of the schematic.

    I will leave ... cases.
    Most ZX Spectrum 128K models do not have great ...
    bverstee bverstee November 2010 Hardware
  • What Spectrum to choose?Hi i'm new to the Spectrum. I read 'bout it in CDA (Polish game magazine) and watched LGR review of the 48k and it REALLY interested me. What model m…

    ... technically superior to the Sinclair 128k and the +2. (that's ... some time to draw the schematic diagram for this.

    BiNMaN BiNMaN November 2010 Hardware
  • Some TAP files not working on DivIDEOne of the people who ordered a DivIDE from me told me het can't load certain TAP files, which load perfectly on emulators. I have encountered that …

    ... RN1 can't be unused. Schematic and board of DIVIDE 57c ... 's only from previous versions. Schematic must be fixed and components ... to use it only on 128k machines. Or will it work ...
    velesoft velesoft January 2011 Hardware
  • +2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?

    ... />
    If I find the schematic I shall upload it, if ... composite mod on a Speccy 128k "toast rack"? I bought a ... 'll treat myself to a 128k and want to know how ...
    Zetr0 Zetr0 March 2011 Hardware
  • +2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?

    ... ULAs have UVY only, ALL 128k model ULAs (ZX128/+2 and ... have another look at the schematic then :)

    EDIT: It ... if there was a decent schematic that you could actually read ...
    guesser guesser March 2011 Hardware
  • +2 grey composite modWithout digging out the schematics, is it possible to do the composite mod like the 48k on these?

    ... the 48k ULA, not the 128k ULAs - both 128/+2 nad ... /> I was looking at the 128k service manual but for some ... it has the 48k schematic, not the 128k!!! No wonder I was ... found a photo of the 128k and I can see that ...
    guesser guesser March 2011 Hardware
  • 128K blues, part +2: picture and tape driveI recently purchased an original (grey) +2 which sadly seems not to be fully working. The computer powers up but there is no way to obtain a stable p…

    ... is the same as the 128K (5v TTL level RGB), the ... />
    Because of this the 128k and 128+2 (Grey) Scart ... that in the +2 grey schematic.

    Some +2 I ...
    mcleod_ideafix mcleod_ideafix June 2011 Hardware
  • Spectrum 128k+ Toastrack lower Beeper level?Does anyone know the easiest way of matching the AY and beeper levels? I'm guessing perhaps the easiest thing to do is lower the beeper line rather t…

    ... /> I did find a schematic for the Spanish 128k+ which had the ...
    RobeeeJay RobeeeJay August 2011 Hardware
  • Dead 128K heatsinkUnfortunately my 128K heatsink died suddenly and with no apparent reason. I had the Kempston Pro interface connected and when i powered it on the ztx…

    128k schematics:
    [url]http://retroisle. ... .speccy.cz/other/zx128plus2-iss3-schematic%28corrected_v01%29.png[/url]
    kpuchatek kpuchatek November 2011 Hardware
  • What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…

    ... .735 MHz, the same that 128K uses. Thus, the CPU clock ... active area. There's no schematic of this, by the way ...
    mcleod_ideafix mcleod_ideafix November 2011 Hardware
  • SLIGHT GHOSTING EFFECTI've recently dusted down my old 128K Spectrum (toast rack version) from the attic, purchased and fitted a new keyboard membrane and purchased a scar…

    ... /> There is no schematic for the original 128K machine within the document ...
    Martyh! Martyh! January 2012 Hardware
  • 128K heatsink no color in composite video and bad antenna outputI am currently repairing a ZX Spectrum 128K heatsink model. It gives no colors on composite video output, and very bad antenna output. I opened it a…

    ... =Jose_Leandro;601678]
    No, the +128K is working well. There ins ... composite signal! (sure in spanish 128K model)

    If you ... see the scheme of +128K, composite video is taken from ... />
    Not according to the schematic I have...
    Is it ...
    guesser guesser February 2012 Hardware
  • SIDBlaster/ZX - new soundcard for ZX-SpectrumThis soundcard is for ZX-Spectrum compatible computers. It uses in its work MOS Technology SID soundchip, which together with MOS Technology 6510 mic…

    ... the 128k seem to have the pin labelled on the schematic but ... is just going by a schematic, I have no real machine ...
    guesser guesser February 2012 Announcements
  • SIDBlaster/ZX - new soundcard for ZX-SpectrumThis soundcard is for ZX-Spectrum compatible computers. It uses in its work MOS Technology SID soundchip, which together with MOS Technology 6510 mic…

    ... the 128k seem to have the pin labelled on the schematic but ...
    mcleod_ideafix mcleod_ideafix February 2012 Announcements
  • SIDBlaster/ZX - new soundcard for ZX-SpectrumThis soundcard is for ZX-Spectrum compatible computers. It uses in its work MOS Technology SID soundchip, which together with MOS Technology 6510 mic…

    ... the 128k seem to have the pin labelled on the schematic but ... is just going by a schematic, I have no real machine ...
    BYTEMAN BYTEMAN February 2012 Announcements
  • Occasional noise over RGB on +2AHi all I have a +2A that is misbehaving at the moment. I'm using the RGB to SCART lead (which incedentally is great on my +3) The problem is, the …

    ... it yourself, if so what schematic did you use?
    [*]Are ... 're using it on. The 128k/+2 is [B]not[/B ...
    guesser guesser February 2012 Hardware
  • Occasional noise over RGB on +2AHi all I have a +2A that is misbehaving at the moment. I'm using the RGB to SCART lead (which incedentally is great on my +3) The problem is, the …

    ... it yourself, if so what schematic did you use?

    128k/+2 is not the same ...
    actualreality actualreality February 2012 Hardware
  • Release date of ZX modelsWhat is release date of other ZX models ? ?. ?.1980 ZX 80 5. 3.1981 ZX 81 23. 4.1982 ZX Spectrum (rubber speccy) ?. 6.1984 ZX Spectrum + ?.…

    ... a modified Sinclair's Spectrum 128K in a new case with ... .

    The +3/+2A schematic as listed on WoS tech ... page suggests too that the schematic is the same, and there ...
    deckard deckard April 2012 Sinclair Miscellaneous
  • The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…

    ... subsystems, not for the whole schematic. For this reason we can ... in 6, and fits the 128K logic into the free PCB ...
    antoniovillena antoniovillena April 2012 Hardware
  • 80x24 mode (Timex required)Hopefully Martijn will be adding this to the archive soon, but until then grab it here: [url]https://dl.dropbox.com/u/15659782/BASIC80.zip[/url] Th…

    ... do it. But with the schematic from Timex Ferranti could have ... might qualify.
    [quote]The 128K have more software because it ...
    chev chev August 2012 Sinclair Basic
  • 80x24 mode (Timex required)Hopefully Martijn will be adding this to the archive soon, but until then grab it here: [url]https://dl.dropbox.com/u/15659782/BASIC80.zip[/url] Th…

    ... do it. But with the schematic from Timex Ferranti could have ... .[/QUOTE]

    But the 128k used a new type of ...
    guesser guesser August 2012 Sinclair Basic
  • Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…

    ... after looking at the harlequins schematic:

    What is the ... ask it because in the 128k versions of spectrum the bright ... it is. In the harlequin schematic the bright signal is added ... is the experience with this schematic?

    Greets Ingo ...
    ingo ingo August 2012 Hardware
  • Messenger interfaceHave anyone photos, schematic, rom images, documentation, or software for Messenger interface ? [url]http://www.worldofspectrum.org/infoseekid.cgi?i…

    ... EPROM_CS and RAM_CS in the schematic. This has been fixed. ... post that shows the schematic, it now shows the ... GAL, when the computer (128K toastrack) boots (poweron or ... button), it does in 128K BASIC. With this GAL, ... seems to start in 128K mode, but after 1 ...
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
  • divide loading errorsHi All, Just bought a divide unit and I am having a few problems. I select the TAP file from the fatware browser, then do a load "". I get a lot of …

    ... schematic the divIDE works on all Spectrums I own (gray +2, 128k ... heater, 48k, 48k+, harlequin).

    This picture shows the schematic ...
    ingo ingo August 2012 Hardware
  • Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…

    ... after looking at the harlequins schematic:

    What is the ... ask it because in the 128k versions of spectrum the bright ... it is. In the harlequin schematic the bright signal is added ... is the experience with this schematic?[/QUOTE]

    Don't ...
    csmith csmith August 2012 Hardware
  • 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…

    ... 'm using. According to the schematic, left pin of R33 is ... , but it seems to use 128K timmings. It shows the same ...
    mcleod_ideafix mcleod_ideafix November 2012 Hardware
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  • Spectrum 128K toast rack schematic?Bizarrely, the 128K Technical manual in the 'Documentation' section here at WOS has everything you want to know about the 128K toast rack machine... …
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