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<1…17181920212223…34>
  • Bad Reset Line on +3eHello there my fellow WoS'ers, Alas I have not been about much over the last couple of weeks, got hit by the flu, headcold and a rather nasty throa…

    ... left which, looking at the schematics with my non-expert eye ...
    JohnH JohnH April 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…

    ... /> I need to update the schematics!!

    Thanks for proving ...
    csmith csmith April 2012 Hardware
  • 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…

    ... a derived work from Superfo schematics. That machine is now a ...
    antoniovillena antoniovillena April 2012 Hardware
  • Does a spectrum +2 power supply work on a +3?tiny question, does a spectrum +2 power supply work for a +3?

    thanks for the schematics btw, but im an immense electrical coward :)
    Vaxalon Vaxalon April 2012 Hardware
  • 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…

    ... that changes in original Superfo schematics works correctly. This task would ... . And when we confirm that schematics are correct, the PCB must ... (Orcad) and the same original schematics in case that he wants ...
    antoniovillena antoniovillena May 2012 Hardware
  • Spectrum +2 gray strong noise at TV sound outputWhat could be the reason of strong sound noise at TV channel on gray +2? In the beginning this speccy was dead, it had faulty 78S05 and ZTX650. Added…

    ... /> I've got couple of schematics from the net but I ... the moment :( Here is the schematics I used:

    [URL ...
    netomc netomc May 2012 Hardware
  • 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…

    ... that changes in original Superfo schematics works correctly. This task would ... . And when we confirm that schematics are correct, the PCB must ... (Orcad) and the same original schematics in case that he wants ...
    toadstool toadstool May 2012 Hardware
  • 48k+ CPU SocketThink I've bitten off more than I can chew... After the desoldering my z80 went without incident, no damaged pads, tracks etc. I expected the socket…

    ... /sinclair/zxspectrum/Technical/Hardware/ZXSpectrumIssue4ab-Schematics.php"]this schematic[/URL] with ...
    napoleonblownaparte napoleonblownaparte June 2012 Hardware
  • 48k+ CPU SocketThink I've bitten off more than I can chew... After the desoldering my z80 went without incident, no damaged pads, tracks etc. I expected the socket…

    ... should be according to the schematics. And finally I would follow ...
    Johan1973 Johan1973 June 2012 Hardware
  • 48k+ CPU SocketThink I've bitten off more than I can chew... After the desoldering my z80 went without incident, no damaged pads, tracks etc. I expected the socket…

    ... zxspectrum/Technical/Hardware/ZXSpectrumIssue4ab-Schematics.php"]this schematic[/URL] ... zxspectrum/Technical/Hardware/ZXSpectrumIssue4ab-Schematics.php"]http://www. ... sinclair/zxspectrum/Technical/Hardware/ZXSpectrumIssue4ab-Schematics.php[/URL]

    napoleonblownaparte napoleonblownaparte June 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…

    ... .

    While reading the schematics of this clone, I realized ...
    mcleod_ideafix mcleod_ideafix June 2012 Hardware
  • Known Z80 M1 problems?I got an email yesterday from someone asking for a Z80 without the M1 problem. I only know about the fanout problem that many Z80's are suffering of…

    ... . I checked the TC2068 board schematics and the M1 line on ...
    pmsr pmsr June 2012 Hardware
  • +2A/+3 schematicsI have downloaded the +2A/+3 schematics and I was wondering what the history of the document is. I also have a pdf by Guesser 30/10/2010. That one …

    ... have downloaded the +2A/+3 schematics and I was wondering what ... at.[/QUOTE]

    The schematics linked from the WoS documents ... labels replaced.

    My schematics are based on the ones ...
    guesser guesser June 2012 Hardware
  • +2A/+3 schematicsI have downloaded the +2A/+3 schematics and I was wondering what the history of the document is. I also have a pdf by Guesser 30/10/2010. That one …

    ... can't honestly remember. My schematics were a combination of all ... find anything wrong in my schematics do post here or mail ...
    guesser guesser June 2012 Hardware
  • Building a PlusD - problemsI'm building a PlusD for myself, but I'm having difficulty getting the ROM to page in properly. At this moment the ZX Spectrum boots, but is VERY slo…

    ... /> I've checked 3 different schematics.
    I've tried different ...
    bverstee bverstee July 2012 Hardware
  • Odd versions of the Multiface One.I've been looking through the adverts for the Multiface One and it's clear that there were a number of versions available. Note the earliest advert …

    ... out. I've made pcb schematics from MF3 and MF128, read ...
    Cameraman Cameraman July 2012 Hardware
  • Odd versions of the Multiface One.I've been looking through the adverts for the Multiface One and it's clear that there were a number of versions available. Note the earliest advert …

    ... out. I've made pcb schematics from MF3 and MF128, read ...
    Jmk Jmk July 2012 Hardware
  • ZX Spectrum ULA core available at OpenCoresHi! On April, 23th, I opened a new project at the OpenCores website: [url]http://opencores.org/project,zx_ula,Overview[/url] Right now, it has a, h…

    ... gonna make the code and schematics available ? It would be cool ...
    prime prime July 2012 Hardware
  • ZX Spectrum ULA core available at OpenCoresHi! On April, 23th, I opened a new project at the OpenCores website: [url]http://opencores.org/project,zx_ula,Overview[/url] Right now, it has a, h…

    ... gonna make the code and schematics available ? It would be cool ...
    superfo superfo July 2012 Hardware
  • ZX81 with black screen and some white dots.Was gearing up to do a composite video mod on my ZX81, and today was going to be it. Unfortunate when started my ZX81 seems faulty. I get a back scre…

    ... generate backporch. There are various schematics about or you can buy ...
    XorA XorA July 2012 Hardware
  • DivIDE Plus tech support?Hi! I'm trying to fix a damaged DivIDE Plus. The thing keeps cycling in the boot screen. As there are no schematics (besides the Diwi 212 prototype…

    ... />
    As there are no schematics (besides the Diwi 212 prototype ...
    Hercules Hercules July 2012 Hardware
  • DivIDE Plus tech support?Hi! I'm trying to fix a damaged DivIDE Plus. The thing keeps cycling in the boot screen. As there are no schematics (besides the Diwi 212 prototype…

    ... />
    As there are no schematics (besides the Diwi 212 prototype ...
    velesoft velesoft July 2012 Hardware
  • Schematic of MULTIFACE 128Exist schematic of Multiface 128 ? I find on WOS only pictures of PCB layers. I mix both layers for possibility make schematic from picture, but it's…

    ... know anything about the hardware schematics, but the MF128 can figure ...
    Jmk Jmk July 2012 Hardware
  • Schematic of MULTIFACE 128Exist schematic of Multiface 128 ? I find on WOS only pictures of PCB layers. I mix both layers for possibility make schematic from picture, but it's…

    ... errors. I'd made those schematics reverse engineering a mf128 pcb ... the drawings.
    The MF3 schematics should work, I've made ...
    Cameraman Cameraman July 2012 Hardware
  • Schematic of MULTIFACE 128Exist schematic of Multiface 128 ? I find on WOS only pictures of PCB layers. I mix both layers for possibility make schematic from picture, but it's…

    [QUOTE=Cameraman;643192]...The MF3 schematics should work, I've made 10 clones so far...[/QUOTE]

    Keen to sell one of those clones?
    jp jp August 2012 Hardware
  • Zymosis -- WTFPL'ed Z80 Emulation Corebreaking news! i'm back with another useless project: new Z80 emulation core written in pure C! i hear you screaming: "oh, no! WHY?!" let me tell yo…

    heh. but this is the only source of information i have. %-) all others doesn't even try to tell when exactly ULA gets confused (there is only some speculations). and i can't read schematics to exctract that info from hardware. %-)
    Ketmar Ketmar August 2012 Emulators
  • 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…

    ... /pub/sinclair/technical-docs/ZXSpectrumIssue2-Schematics.gif[/URL]

    [I ...
    1024MAK 1024MAK 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…

    ... />
    When fine-tunning the schematics, before sending them to fabric ...
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
  • Interesting Keyboard FaultWhy-oh-why do I keep buying half-dead Speccys off fleabay. Bought this one as a source of spares, it was listed as having a non-working keyboard due…

    ... /sinclair/zxspectrum/Technical/Hardware/ZXSpectrumIssue2-Schematics.gif"]issue 2 schematic[/URL ...
    napoleonblownaparte napoleonblownaparte August 2012 Hardware
  • 128k ULA pinout?Is there someone who has a circuit diagram or pinout for the 128k (+2) ULA?

    ... find the pinout in the schematics of the toasrack model (or ...
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
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Latest Posts

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    harriusherbartio on 11:01AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
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