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<1234567…34>
  • Spectrum 48K video fixI have done this mod to my 48k speccy and now when i plug the spectrum into the tvs composite port i just get a black and white picture no colour. It…

    I have done this mod to my 48k speccy and now when i plug the spectrum into the tvs composite port i just get a black and white picture no colour.
    Its an issue 3 board with rubber keys.
    caver99 caver99 January 2008 Hardware
  • Spectrum 48k video review - USA perspectiveGreetings WoS! I have been getting into the Spectrum universe recently, and living in America it's proved quite challenging but very rewarding. It's…

    ... /watch?v=tqnIa4rXK_c"]ZX Spectrum 48k Review - Lazy Game Reviews[/URL ...
    phreakindee phreakindee March 2010 Sinclair Miscellaneous
  • Spectrum 48k video and keyboard issueHi all, few days ago I experimented with battery supply for my speccy (48k issue 2), and I was measuring the voltage and how much current it used. A…

    ... battery supply for my speccy (48k issue 2), and I was ...
    dimewos dimewos September 2013 Hardware
  • Paging for 64Kb of Video Ram??? What is the best way to page this?Hi all, I'm just putting together a concept card for a "Loki" style of video card, which supports shadow ( so it fits a normal Speccy ) and also t…

    ... were programming a 48K or 64K video card, how ... chunk? A single 48K video page with RAM relocated ... 48K of memory and leave the upper 16K for a "Normal" video ... This would allow the video card to have two ... , 48K, 128K ) and shadowed, would allow for 2 video screens ...
    cj7hawk cj7hawk October 2021 Hardware
  • Spectrum modsHi all, Looking at my Spectrum stuff and the mod`s I have done. How many of you out there have done Spectrum modifications? And what are they? 1. …

    ... own version.

    2. 48k Video out mod

    3 ...
    swift240 swift240 August 2007 Sinclair Miscellaneous
  • Spectrum +3 to Joytech PS2 8" LcdHi, I?m making some cables so I can connect my old computers to a Joytech PS2 8" Lcd. Starting with my Spectrum +3 I made a RGB and a composite cab…

    ... reach the stage of getting video from the +3 through RGB ... ).
    I connected a Spectrum 48K by composite signal and the ... something is different between the 48k video signal and the +2 and ... +3 video signals that made te garbage ...
    AlfaRomeo AlfaRomeo January 2013 Hardware
  • FS: Stereo +3, Multiface 3 and moreGetting rid as I need the money, this is what I use everyday; [LIST] [*]Stereo +3 [*]Stereo Speakers [*]Multiface 3 [*]Competition Pro Joystick [*]Mi…

    ... see)) will not work with 48k/+
    [*]Video lead for CUB
    Macc Macc April 2013 Sales
  • One more grey +2 with video problemsI guess I need your help again to hopefully be able to do some proper troubleshooting myself one day. Here I have a grey +2, which could be a bottom…

    ... as shown in Zorn?s 48K video. The outer positions both show ... [/URL]), there?s only the 48K and the +3. Wouldn?t ...
    schombi schombi October 2013 Hardware
  • Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…

    ... input. Compared with the 48K video circuit, the 128K circuit ... Because the composite video signal in the 48K Spectrum is already ... protection. If the composite video output is momentarily connected ... 48K circuit, there is no spare voltage in the composite video ...
    rga24 rga24 April 2014 Hardware
  • New video about S-video modification on Issue two 48K Spectrum.I just finished an s-video modification on an Issue two 48K Spectrum so I made a video about it. Most of the technical details are in the video; if y…

    ... the TEA2000 mods, on the 48K it's a little harder ... colour in the decoded composite video display - i.e. blue and ... white edges.

    The 48K video circuit is much more simple ... chrominance afterwards. Either way, the 48K circuit would get much more ...
    rga24 rga24 August 2014 Hardware
  • Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…

    Best thing I found for reducing video interference was replacing C5 to C8 (the 12v decoupling caps for the lower RAM) with 1nf ceramics. On mobile at the moment, but if you search my post history you'll find it :)

    B
    balford balford December 2015 Hardware
  • Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…

    ... thing I found for reducing video interference was replacing C5 to C8 ...
    1024MAK 1024MAK December 2015 Hardware
  • Were the full Sinclair Loki specs ever actually known?I was just curious. A lot was leaked to the media, but the exact specs seem different depending on source. Some say it could support up to 512x256 an…

    ... swapper deals with either 48K video mapping or Loki video mapping. That's ... .

    Building a "Video" chip in just 3 PAL ... anything remotely complicated like a video display processor. Also it ... an external processor on the video side access to the ...
    cj7hawk cj7hawk October 2021 Hardware
  • zx spectrum 48k interference during first two minutes of warm upi have a issue 3B 48k that i am looking at during the first two minutes (approx.) of warm up there is interference on the screen (tried to take a pic…

    i have a issue 3B 48k that i am looking at ... .) of warm up there is interference on the screen (tried to ... , it looks like a bad video cable or power supply noise ...
    mark8bit mark8bit October 2020 Updates
  • Composite video on SPectrum 48KHi all I'm in Australia, and recently had a Speccy 48K sent over to add to my collection. I have had very little to do with Speccys (it was most defi…

    ... , and recently had a Speccy 48K sent over to add to ... inside) of getting a composite video signal out of the Spectrum ...
    billlagr billlagr January 2005 Sinclair Miscellaneous
  • 48k spectrum, video problems help neededHi All, I have been browsing this site for a long time and today i have finally registered and am after some help!! I have a 48k speccy and the vid…

    ... /> I have a 48k speccy and the video is not working, all ... you can see in the video file which you can see ... as I prove in the video file by playing a few ...
    mattstroud mattstroud September 2005 Sinclair Miscellaneous
  • Differend video quality from ZX 48K?I have four ZX 48K with differend issues. Two are issue 3 and two are issue 4. I wonder of the differend video quality from them. All have the standa…

    I have four ZX 48K with differend issues. Two are issue 3 and two are issue 4. I wonder of the differend video quality from them. All have the standard video hack. But one of them has a extrem sharp picture. Why?


    Micky
    -Micky -Micky November 2010 Hardware
  • How to clean up video output to TFT LCD - Spectrum 48kHi, I hope that there is an easy answer to this question. I have modded the RF socket on my 48k Spectrum to output composite video as described in t…

    ... on my 48k Spectrum to output composite video as described ... /11/zx-spectrum-composite-video-mod.html"]http://womblesretrorepairshack ... 2008/11/zx-spectrum-composite-video-mod.html[/URL]
    ... high resolution video - vga converter connecting my 48k Spectrum to ...
    hedge hedge November 2010 Hardware
  • Composite Video Mod (Photo Heavy)I guess lots of users have done this mod and the more fully explained work through can be found here [URL="http://womblesretrorepairshack.blogspot.co…

    ... /2008/11/zx-spectrum-composite-video-mod.html"]http://womblesretrorepairshack.blogspot ... /2008/11/zx-spectrum-composite-video-mod.html[/URL]

    48k. I have a little soldering ... this mod i had terrible interference from the rf unit.
    zxmatt zxmatt March 2011 Hardware
  • 48K COMPOSITE VIDEO infosI'm not familiar with the Composite Video, so I'm asking help to WOS. I've got a 48k with Composite Video Mod. I am used to my Toastrack, that I plug…

    ... not familiar with the Composite Video, so I'm asking help ... /> I've got a 48k with Composite Video Mod. I am used ... with the 128k RGB the 48k Composite Video have faded colours.
    Video Mod?
    Or it's ...
    Spectrum Spectrum February 2012 Hardware
  • Centre video signal from composite modded 48KHi! I made this simple video mod some years ago,to have a composite output instead of RF(on 48k). --from this site-- [url]http://user.tninet.se/~vj…

    ... !
    I made this simple video mod some years ago,to ... output instead of RF(on 48k).

    --from this site ... , but I noticed that the video output is a bit "decentralized ...
    DaRkHoRaCe DaRkHoRaCe February 2013 Hardware
  • Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…

    ... to do the composite video mod on my 48k.

    I ... the TV (+ in toward the Video IC, etc..)

    Wondering ...
    thomas3120 thomas3120 April 2013 Hardware
  • Spectrum 48k unstable Colours on Composite Video OutputHi, I?ve an Speccy 48k here which has an Composite Video Out Mod (The Video-Modulators power input is cut from the board). On this I get an unstabl…

    ... ?ve an Speccy 48k here which has an Composite Video Out Mod ...
    (The Video-Modulators power input ...
    Luzie Luzie October 2013 Hardware
  • Quality of component video signals on 48K expansion portHi, What's the quality of the component video signals on the 48K Spectrum expansion port like? Could I directly connect them to three phono sockets…

    ... quality of the component video signals on the 48K Spectrum expansion port ... onto e.g. a component video capture device), or would active ...
    mark_k mark_k January 2014 Hardware
  • New video about S-video modification on Issue two 48K Spectrum.I just finished an s-video modification on an Issue two 48K Spectrum so I made a video about it. Most of the technical details are in the video; if y…

    ... -video modification on an Issue two 48K Spectrum so I made a video ... technical details are in the video; if you have any questions ... are not covered in the video please ask.

    [url ...
    rga24 rga24 April 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 +…

    ... did a composite video mod for the 48k in the past. Now ... question is: is the video circuit in the 48k and the +2 ...
    robertod robertod June 2014 Hardware
  • video quality issue on 48k machine after composite modHello! I just bought an 48k spectrum and did the composite mod. Unfortunately it did not end up as good as i hoped for. The screen after reset looks …

    Hello! I just bought an 48k spectrum and did the composite ... the flickering horizontal stripes (see video, though it is barely visible ...
    holovicc holovicc November 2015 Hardware
  • Best way to mod a Spectrum 48K for Composite VideoIt seems that their are generally two ways to mod a 48K for composite video - just wiring the composite into the RF modulator over to the RCA jack vs…

    ... ways to mod a 48K for composite video - just wiring the composite ... that just wiring the composite video over to the RCA is ...
    msansom msansom March 2017 Hardware
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Related Threads

  • New video about S-video modification on Issue two 48K Spectrum.I just finished an s-video modification on an Issue two 48K Spectrum so I made a video about it. Most of the technical details are in the video; if y…
  • Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…
  • 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…
  • Composite video on SPectrum 48KHi all<br /> I'm in Australia, and recently had a Speccy 48K sent over to add to my collection. I have had very little to do with Speccys (it was mos…
  • 48k spectrum, video problems help neededHi All,<br /> <br /> I have been browsing this site for a long time and today i have finally registered and am after some help!!<br /> <br /> I have …
  • Zinetrix video player - reads video from tapeA gentleman from es.comp.sistemas.sinclair made a program to experiment loading of video (digitized video, for example), using a custom turbo loader …
  • Video output (48K)Hello!<br /> <br /> I've made video mod on my Zx Spectrum. Now the problem of scanning (and tuning) to right channel is history for me.<br /> <br /> …
  • Spectrum 48K video fixI have done this mod to my 48k speccy and now when i plug the spectrum into the tvs composite port i just get a black and white picture no colour.<br…
  • Soldering Iron Fun - 48k Composite Video ModYay, I bought a temperature controlled soldering iron and associated gubbins yesterday and have had a practise go at Womble's documented [URL="http:/…
  • Spectrum 48k video review - USA perspectiveGreetings WoS!<br /> <br /> I have been getting into the Spectrum universe recently, and living in America it's proved quite challenging but very rew…

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