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Search Again :: Adv Search 1000 results in 0.014s
<1…18192021222324…34>
  • ZX Spectrum not working... issue 4S?Hi, I've bought a "new" broken ZX Spectrum +. The idea was to put an harlequin board inside, but for the moment I'm trying to put it in working order…

    ... parts are numbered.
    [*]Put replacement transistors in place with their ... things don't work after replacement, re-check everything & re ... fails due to a bad capacitor.
    [/LIST]

    I ...
    RetroTechie RetroTechie February 2012 Hardware
  • ZX Spectrum 128K composite video fixes in 1 documentI just finished my document with video fixes and improvements for all ZX Spectrum 128K models. Download it here: [URL="http://benophetinternet.nl/ho…

    ... luma component of the composite video before feeding it into the ... is separated out of the video again by a TV receiver ... .

    By removing the capacitor connecting the audio circuit to ...
    guesser guesser February 2012 Hardware
  • Issue 4S users... I need your help!Short story: Issue 4S spectrum don't work. TR4 seems to have pins at different places from other speccys (BCE versus EBC), and usual replacement part…

    ... (but 12v still has the video circuit attached). After that I ... that in Issue 4A (a capacitor between emitter and base of ...
    Zup Zup March 2012 Hardware
  • 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…

    ... an example of the composite video output of the problematic Spectrum ... the circuit, I found the video signal to be perfectly clean ... resistance between A13 and the video trace, but could see no ... C26, so I removed this capacitor to have a look underneath ...
    Zorn Zorn March 2012 Hardware
  • Issue 3B only sees 16k (and RAMTOP NO GOOD on loading)A ZX+ with issue 3B board that i got recently, does not see anything more than 32768 (sometimes 37267..) on "PRINT PEEK 23732 + PEEK 23733 * 256 (Ent…

    ... Some issues put that capacitor in the solder side ... to get a more suitable video signal.

    ... all: your colour composite video signal is present on ... s possible to have composite video (colour) and sound ... are made for audio/video cables for the Dragon ...
    mcleod_ideafix mcleod_ideafix March 2012 Hardware
  • 128 toaster video artifactsHi Have 2 128k "toasters" ,but i need to connect them through composite,becasuse i live outside the uk, and rf is not an option on my tvs Made a ca…

    ... some games i get weird video artifacts/ random lines whick are ... mixed with the video signal. There's a capacitor that performs that ...
    mcleod_ideafix mcleod_ideafix April 2012 Hardware
  • No colour after changing LM1889NI replaced the faulty LM1889N in my issue 2 spectrum, since I had a very yellow picture, and soldered a socket to put the new LM1889N into, however, …

    ... working.

    Assuming the replacement LM1889N is not faulty, I ... an oscilloscope to examine the video signals (on both sides of ...
    Zorn Zorn April 2012 Hardware
  • No colour after changing LM1889NI replaced the faulty LM1889N in my issue 2 spectrum, since I had a very yellow picture, and soldered a socket to put the new LM1889N into, however, …

    ... come through out to the video. I have measured from the ... .

    I Have ordered replacement crystal for X2 to see ...
    Johan1973 Johan1973 April 2012 Hardware
  • DK Tronics Compilation Tapes....MIA ??I have two tapes (no inlays) of compilaitons of DK Tronics games. One is from DK Tronics themselves, has a white label with black text, and contains…

    Now I understand about Video Vault 1, it's listed ... .

    The TZX for Video Vault 3 is knackered in ... , and need removing pending a replacement IMHO:
    [url]ftp://ftp ...
    Andrew Barker Andrew Barker May 2012 MIA/STP/SDP
  • ZX81 back porch fix using LM1881Hello! Has anyone here did the back porch fix for ZX81 using LM1881? I did it this weekend and instead of clear black on white i got black on dark g…

    ... ]I'm building one this video fixers, using a variation of ... /JL/zx81%282%29/ZX81-video.html[/url]

    And ... use AC coupling through a capacitor (10u would find). What's ...
    ArtemKuchin ArtemKuchin July 2012 Hardware
  • Replacing Upper RAM in 48KHi Folks Well, my fun continues :) After sorting the display issues with this machine I found I couldn't load software meant for 48K machines. Havin…

    ... an internal replacement you could add some logic to support video RAM ...
    chev chev July 2012 Hardware
  • 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…

    ... software again that writes to video memory. However, upon finishing that ... , and it will run the video memory test, but as soon ... lot of modification as a replacement to the ROM?
    Johan1973 Johan1973 August 2012 Hardware
  • 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…

    ... bad anymore. Really need a replacement to determine if it is ... and blue bars to test video ram), and then it resets ...
    Johan1973 Johan1973 August 2012 Hardware
  • 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…

    ... , etc).

    On modern video cards / motherboards & with a ... other than replace a bad capacitor or re-solder a loose ...
    RetroTechie RetroTechie August 2012 Chit chat
  • 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…

    ... RGB output with the composite video signal. The difference is much ... better then that of composite video.
    But, if you look ... then I added an electrolytic capacitor of 150 ?F (you can ... correct this I added a capacitor of 560 pF from emitter ...
    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…

    ... around the video output and to add one electrolytic capacitor to improve ...
    ingo ingo August 2012 Hardware
  • strange solution with bad spectrum +2 t.v. sound2 weeks ago I bought a British 128 K ZX-Spectrum +2. At first it didn't have sound on the t.v. RF output. Adjusting L5 (IC 11: MC1376 audio modulato…

    ... .

    I tried the capacitor that you suggested, but it ... and adding a separate composite video output.
    After that, I ...
    Knik Knik August 2012 Hardware
  • +2 (Grey) S-video?I have a pretty good Composite/S-video to VGA adapter that does a nice work of running my retro machines on an old LCD screen. However, it looks best…

    ... is possible to get s-video from the TEA2000 by removing ... a long time and a replacement can set you back around ...
    guesser guesser September 2012 Hardware
  • +2 (Grey) S-video?I have a pretty good Composite/S-video to VGA adapter that does a nice work of running my retro machines on an old LCD screen. However, it looks best…

    ... is possible to get s-video from the TEA2000 by removing ... a long time and a replacement can set you back around ...
    Johan1973 Johan1973 September 2012 Hardware
  • PLEASE HELP!! DEAD SPECTRUM!!Sad News!!! I have a spectrum issue 5 board and I'd done the general composite mod which was great and it worked with a divIDE plus (RWAP) and esxDO…

    ... changed the value of the capacitor instead...)
    I also tend ... this is the source of video. In case of a non ...
    roko roko September 2012 Hardware
  • Department of Culture - Consultation on Tax Breaks for Computer Games IndustryI see that the Department of Culture have now started the consultation process on how tax breaks for the computer games industry should work. See [u…

    ... trader supporting the retro video games industry, I would ... 000 in the production of replacement keyboard membranes (made in ... - Encouraging the production of video games that might not otherwise ... the production of culturally British video games.

    ...
    rwap rwap October 2012 Sinclair Miscellaneous
  • What Spectrum projects (Software/Games/Utility)(Hardware)(Others) are you working on?So, basically that :) You dont have to give names or more clues if you dont want to ;) Also, if you are working on more than one, you can tell all of…

    ... replacement with ULAplus on the way, and Paul's plug-in video ...
    JeffB JeffB October 2012 Development
  • 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…

    More updates: the composite video issue (B&W output ... to generate a proper colour video signal. At first I thought ... from the composite video output of the ULA replacement board:

    video signals (i.e. dot crawl ...
    mcleod_ideafix mcleod_ideafix October 2012 Hardware
  • Pentagon RAM memoryDoes anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ? Looking at schematics it …

    ... byte somewhere (either for the video or the Z80)...[/QUOTE]
    video bytes. The ULA (or whatever they call its Pentagon replacement ... be able to generate the video signal. No need to bother ...
    Patrik Rak Patrik Rak October 2012 Hardware
  • 48k faultyHi guys! I have a 48k that, currently, presents 2 problems: 1 - Can?t sync to TV correctly. I get a lot of noise and the characters appear to be inc…

    ... to tap off the composite video signal from inside the Spectrum ... Spectrum to connect the composite video signal to the TV connector ... to do this via a capacitor and there is an extra ...
    Zorn Zorn November 2012 Hardware
  • 48k faultyHi guys! I have a 48k that, currently, presents 2 problems: 1 - Can?t sync to TV correctly. I get a lot of noise and the characters appear to be inc…

    ... /2008/11/zx-spectrum-composite-video-mod.html[/URL]

    video[/URL] of someone doing this ... already). Whether to include a capacitor or not (100~220 uF ...
    RetroTechie RetroTechie November 2012 Hardware
  • zx spectrum 128+2a/b questionsIv just purchased a 128+2 and have only one game for it lol (Super stunt man). A few question if anyone can help.. 1)I'd like to run games through …

    ... to do:

    - Composite video output. It will give you ... sound, but...

    - Unmixing video and audio output. Audio output ... affect video signal (also when using composite video), so removing certain capacitor will ...
    Zup Zup November 2012 Hardware
  • Suggested Spectrum model for retro hobbyist?I'm planning on getting myself a Spectrum of some sorts to add one of the most famous 8-bit computers to my retro collection (already have C64, A1200…

    ... Spectrum +3 all have RGB video out, AY sound, pretty good ... to get, do have RGB video and AY sound, have [U ... work. May also need a replacement keyboard membrane.

    Spectrum ... 48k RAM, no RGB video, no composite video (unless modified), no AY ...
    1024MAK 1024MAK November 2012 Hardware
  • +2 (Grey) S-video?I have a pretty good Composite/S-video to VGA adapter that does a nice work of running my retro machines on an old LCD screen. However, it looks best…

    I just did the S-Video mod on my +2. ... C31 the sound carrier coupling capacitor).

    To generate ... signals worked fine in S-Video on my Sony television. ... and cross colour in S-Video. Cross luma on the ... 128K video circuit manifests as a ...
    rga24 rga24 December 2012 Hardware
  • Adding IDE to your Spectrum +2 A/B (or +3)Hello my fellow [B]WoS'ers[/B] [B]This is a shared thread with [url]www.amibay.com[/url] which you can [URL="http://www.amibay.com/showthread.php?t=…

    ... ]
    [I]The original Flux capacitor!

    (my flux droper ... keep kids inside..... and playing video games.... its the only way ...
    Zetr0 Zetr0 January 2013 Hardware
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Latest Posts

  • I am currently watching.....
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