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Search Again :: Adv Search 1000 results in 0.014s
<1…14151617181920…34>
  • 128k Toastrack Composite Video output confusion!Hi everyone. Ok, so I have a couple of 48k's that I have performed Wombles fantastic composite mod on. They work great here in Canada on my big scre…

    ... not support the spectrum's video signal
    smogit smogit November 2014 Hardware
  • 128k Toastrack Composite Video output confusion!Hi everyone. Ok, so I have a couple of 48k's that I have performed Wombles fantastic composite mod on. They work great here in Canada on my big scre…

    ... greatly improves the Composite Video signal since you can't ... " in its signal which interfere with the video signal making it worse ... totally useless in a video-only signal you can change that ... can clear the (composite) video signal from the audio garbage but ...
    RSwipeCA RSwipeCA December 2014 Hardware
  • 128k Toastrack Composite Video output confusion!Hi everyone. Ok, so I have a couple of 48k's that I have performed Wombles fantastic composite mod on. They work great here in Canada on my big scre…

    ... either on the monitor's video connector (check if it is ... that produces a PAL composite video signal to try on this monitor ...
    1024MAK 1024MAK December 2014 Hardware
  • Which emulators support ULA+Tried ZX Spin 7.0, but its unstable. Tried to drag and drop .scr files onto it, but it comes out all wrong. Don't understand the TAP file that's sp…

    ... cannot decode properly the composite video signal. The camera also messed up ...
    mcleod_ideafix mcleod_ideafix December 2014 Development
  • Speccy Vs Amstrad CPC Vs C64I hope no one minds me posting this here as well as in the announcements section. I'll delete it if there is a problem. It's childish fun but can I …

    ... can't find a youtube video.

    Sample Tracker 2 ... I can't find a video on youtube.

    7 ... /> The method of using the video signal to generate audio was how ...
    Alcoholics Anonymous Alcoholics Anonymous December 2014 Games
  • Speccy Vs Amstrad CPC Vs C64I hope no one minds me posting this here as well as in the announcements section. I'll delete it if there is a problem. It's childish fun but can I …

    ... /> The method of using the video signal to generate audio was how ...
    Pegaz Pegaz December 2014 Games
  • RGB video issue on +2 and +3. Signal high?I have a couple of +3's and a new +2a that arrived today. When I plugged in the +2a using my RGB lead from Retro Computer Shack I was reminded of a n…

    ... the CPC's luminance signal to charge a cap ... with trying to use a video signal yes. I think it' ... It would depend on the signal levels, the capacitance, and ... ohm impedance like the other video signals. We are only ... to display the RGB video signals all the time ...
    guesser guesser January 2015 Hardware
  • ZX81 ULA Swap questionHi Can someone remind me if all three versions of the ZX81 ULA are electrically compatible? I just bought a ZX81 with an older ULA, so it lacks the …

    ... "back porch" part of the video signal.

    As the colour ... the features of the enhanced video signal.

    However... I have ...
    1024MAK 1024MAK January 2015 Hardware
  • ZX Spectrum+ video ? red on green problemThis is my first post on the forum, so let me introduce myself. I am retired for several years. For 30 years I have been a fan of the ZX Spectrum. I …

    ... check the quality of the video signal from the YUV-RGB converter ... the result (better than S-Video):

    [URL=http://www ... a good way of shielding signal wires from interference.

    video, as well as on the ...
    Boleslaw Jamroz Boleslaw Jamroz February 2015 Hardware
  • 3.4 Inch TFT with 48k Spectrum....hmmm?Hey guys, So I have been playing around with the idea of using a small LCD with composite input for a 48k Speccy. I got hold of one of these relat…

    ... a composite TV signal is a composite signal made up of ... picture information (if a colour signal)

    As a ... originally the composite TV signal was the result of demodulating ... to 100uF) allows the composite video signal through.

    However, ...
    1024MAK 1024MAK February 2015 Hardware
  • No display on a 128 toastrackHi All, I just bought a 128k off ebay with the usual, "it worked last time I used it", so I read into this "it does not work". True enough, it does n…

    ... and -12V).
    The composite video section needs a +12V supply ... -SCART leads use the composite video signal for the synchronization signals, if ... your pictures, all the visible video picture is there, but the ...
    1024MAK 1024MAK February 2015 Hardware
  • Video ZX Spectrum+ 48k<span>Good day ... is a bit of time that I try to fix my zx spectrum ... I replaced the ram 4116, all electrolytic capacitors ... but the monitor loo…

    The ULA generates the video picture. The LM1889 (a colour ... a type of component video signal to a composite video signal).

    Your ...
    1024MAK 1024MAK May 2015 Hardware
  • Phillips CM8833-mk11Its been a along time since Iv been on this site. Things in life happens, but I'm back. I have a question please. Just been given a working monitor b…

    ... models don't produce RGB video signals. If the Spectrum has ... possible to feed the composite video signal to some designs/models of ...
    1024MAK 1024MAK May 2015 Hardware
  • 48k issuesThe 48k speccy had several alterations ( issues) and I was wondering, they all seam to work ok so what was the point?<br>

    ... adjustment capacitors near the comp. video encoder IC, removed on later ... found a way to make video signal generation less 'critical' / dependent on ...
    RetroTechie RetroTechie June 2015 Hardware
  • ZX81 Composite Mod<p>I've done a simple composite mod to my Issue 3&nbsp;ZX81 following a basic schematic I found on one of the ZX81 forums. Mod consists of a BC547, 1…

    ... more fussy about the input signal compared to CRT displays :-(
    video signal they're fed.

    video output. Meaning a TV doesn ... that adds this to the video signal. With a newer version ULA ...
    RetroTechie RetroTechie June 2015 Hardware
  • simple way to connect expansion port to SCART?I know there is the SPECTRA interface but this one does so much more than i really need.... also: having modified the 48k rubbberkey following this …

    ... /> Or
    Generates a new video signal by snooping on the writes ... to video RAM like the SPECTRA ... /> However, there is a composite video signal present on the edge connector ... slightly noisier version of the signal that goes to the ...
    1024MAK 1024MAK July 2015 Hardware
  • Newbie Hardware QuestionsI just recently aquired my first Spectrum, a +2, and I'm in the process of getting acquainted with it. Being a newbie I had some questions, which …

    ... leads to sharper edges in video picture.
    Beside ... to use the composite signal at all. The best ... to be using the RGB signal. A RGB (50Hz) ... to a noticable delayed video signal that is not synchron ... which does not delay the signal and works very well ...
    ingo ingo July 2015 Hardware
  • Composite Video Mod Capacitor ValueCouldn't find any thread where this has been asked before but I'm not convinced the search in this forum is the best...:) Due to the recent retire…

    ... is not there to improve signal quality, but to prevent a ... capacitor is fitted, the video output signal from the modified ZX Spectrum ... not comply with the composite video "standard". So this upsets ... low frequency parts of the video signal. At the same time, ...
    1024MAK 1024MAK July 2015 Hardware
  • another non working issue 3 48kHi all, next! :) I don't have good filings about this speccy :) https://youtu.be/D9qpCR18-kI here is short video what this speccy do. we hav…

    ... /> for not stable video signal i found in video part on mobo two ...
    gorski gorski July 2015 Hardware
  • ZX Spectrum+ adviceHey all, I just got a ZX Spectrum+ from eBay and I'm not sure yet what to do with it. I wanted to first take a peek inside, see what issue board it i…

    ... under power, using JoulesperCoulomb's video again. All voltages look right ... I wanted to test for video signal. Turns out that the original ... doesn't work for composite video (I didn't realize the ...
    lunarul lunarul August 2015 Hardware
  • Composite mod vs interfaceHey all, I was looking at the pinout for the edge connector of the zx and noticed that there are composite and component video signals available thro…

    ... not fitted, the composite video signal is not available at the ... can use the composite video signal at the edge-connector.< ... />
    The component video signals need further processing before ... advantage of doing the composite video signal mod. Is that users ...
    1024MAK 1024MAK August 2015 Hardware
  • ZX Spectrum+ adviceHey all, I just got a ZX Spectrum+ from eBay and I'm not sure yet what to do with it. I wanted to first take a peek inside, see what issue board it i…

    ... tricky :-(
    If the composite video modification has been done, a ... pick something up on the video output (I have never ... to test for a composite video signal is an oscilloscope.
    < ... vertical and a 15625Hz horizontal signal. Then you should get a ...
    1024MAK 1024MAK August 2015 Hardware
  • ZX Spectrum+ adviceHey all, I just got a ZX Spectrum+ from eBay and I'm not sure yet what to do with it. I wanted to first take a peek inside, see what issue board it i…

    ... tricky :-(
    If the composite video modification has been done, a ... pick something up on the video output (I have never actually ... to test for a composite video signal is an oscilloscope.[/quote]
    lunarul lunarul August 2015 Hardware
  • HD Video Converter for ZX Spectrum +3I recently bought [URL="http://www.amazon.co.uk/gp/product/B0092IAA3I?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00"]this[/URL] SCART to HDMI co…

    ... have to convert an analogue video signal to digital, then store a ... conversion or processing of analogue video signals will cause more noise ...
    1024MAK 1024MAK August 2015 Hardware
  • Display bandsHi all, I'm busy working on an issue 3 16k Spectrum I picked up on eBay. I've upped it to 48k and put a new membrane in. I noticed the display was…

    ... the design and of the video signal standard. But yours is much ...
    1024MAK 1024MAK September 2015 Hardware
  • Access to ZX81-Service ManualI need the ZX81-Service manual to repair my sick Zeddy. Unfortunately I don't get access to WOS documents via ftp. How can I register? For the ZX-S…

    ... "back porch" part of the video signal. The last ULA version, the ...
    1024MAK 1024MAK September 2015 Hardware
  • Was there a POKE that broke the SpectrumHi Everyone I've been recalling myths and rumours from back in the day. You know "Lunar Jetmans" trailer and that sort of thing. But one rumour …

    ... not produce a valid TV (video) signal. All TVs are designed to ... cope with the no signal condition. After all, the same ... someone unplugs/disconnects any other video source while the TV is ... by the input video signal, so a loss of video input is extremely ...
    1024MAK 1024MAK October 2015 Sinclair Miscellaneous
  • A few hardware questions regarding Z80 and eZ80Hi Guys, Maybe some of you could help me with these questions: I would like to know what is the actual file size limit that can be used by z80 …

    ... support chips to generate a video signal and this would likely be ...
    smogit smogit October 2015 Hardware
  • Display bandsHi all, I'm busy working on an issue 3 16k Spectrum I picked up on eBay. I've upped it to 48k and put a new membrane in. I noticed the display was…

    ... far too small for a video signal of this type. This ... bandwidth (frequency range) of the video signal (act like filter). The ... the high frequency AC signal from the power section inverter ... mix with the colour signal video frequencies causing strange effects.< ...
    1024MAK 1024MAK October 2015 Hardware
  • Vega ARM SOC?I read that the core of the new Vega was an ARM SOC. I thought it would have been an FPGA. But it seems it's an ARM running an emulator. Anyone kn…

    ... stuff to help generate a video signal. Say, a framebuffer for example ... . Which would make generating video easy, and leave the cpu ...
    RetroTechie RetroTechie October 2015 Vega
<1…14151617181920…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
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    rich_chandler on April 21
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    mel the bell on April 21
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    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
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