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<1234567…34>
  • Settings on oscilloscope to see composite video signalHello, Learning a bit more about my new Owon digital 2 chan. oscilloscope. Would like to know what settings I should use to view a composite signal…

    ... signal.
    Under settings menu there's something like video/ ... amp; SECAM, etc..
    Composite video signal is analog, correct?
    Mainly ... to see the comp. signal itself and any interference/noise ... may be present in the signal.

    And ...
    thomas3120 thomas3120 December 2013 Hardware
  • What is the maximum fps the spectrum can achieve?I have been doing some reading and from what I understand the Spectrum outputs a PAL signal, but that means it will display @50fps or @25fps? If t…

    ... outputs a 50fps (ish) non-interlaced video signal.

    When people ... the VSYNC signal that indicates the start of a video frame. That ... synchronise that with the VSYNC signal (by HALTing the CPU) ... to 8-bit machines, video time was so limited that ...
    AndyC AndyC August 2017 Hardware
  • Install a Sintech Video adaptor in a Spectrum+Hi all, I'm an old Commodore user (boo! hiss!) that's aquired his first Spectrum. Since my modern TV doesn't like the RF output of any old computer …

    ... computer I also bought a video adaptor from Sintech ([url]http ... .htm[/url]) which gives composite video out when fed the right ... needed is:
    1. the video signal going into the RF box ...
    Bacon Bacon June 2003 Sinclair Miscellaneous
  • 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…

    ... inside) of getting a composite video signal out of the Spectrum? I ... believe there is a composite signal on the expansion connector, but ...
    billlagr billlagr January 2005 Sinclair Miscellaneous
  • Edge-connector video...Been reading some old speccy books recently that were surplus to requirements at the local library...:-) ...and in one book it mentions that the ed…

    ... edge-connector carries the YUV video-signal as well as the data ... the possibility of a decent video-feed from a 48K spectrum ...
    bobs bobs February 2007 Hardware
  • Bad composite video cable?Last week I received a 128K from Rich Mellor. I know he tested everything, which leads me to believe that the issues I'm having are related to my cur…

    ... know how to display the signal properly. If I try to ... decided to try the composite video input on the TV card ... Dscaler says there's no video signal (I did change the source ...
    zxbruno zxbruno May 2008 Hardware
  • More questions on video cablesI was trying to find out why American TVs don't have Scart inputs, and I found this: [QUOTE]SCART is a french invention and only used in Europe. Th…

    ... is converted from the RGB video signal, which is split into ... />
    So, is component video better or not? :)
    For ... 2A (with composite video mod) to my video capture card which has ... /> If component video is better, would a video lead require circuitry ...
    zxbruno zxbruno April 2009 Hardware
  • Is there any video input on expansion bus?Imagine you want to build a custom display hardware, for instance, to add hardware sprites to display. Is it possible to design such a device so that…

    Imagine you want to build a custom display hardware, for instance, to add hardware sprites to display. Is it possible to design such a device so that the video signal can go into Spectrum, ULA and then to standard RF socket?
    maiki maiki March 2010 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…

    ... finished my document with video fixes and improvements for all ... vanmezelf/ZX Spectrum 128K composite video fixes.pdf"]ZX Spectrum ... models: detaching audio from the video signal for better picture
    - ... / +2B / +3: creating a composite video output signal
    bverstee bverstee January 2012 Hardware
  • ZX 48 issue 4S no s-video possible?No s-video on ZX 48 issue 4S possible? I have had this mod on my issue 4A. But this did not work with my 4S. On C65 is no chrominance signal. Here …

    ... . On C65 is no chrominance signal.

    Here is ... the color signal to pin 4 on s-video socket.
    The Luminance (B/W video) signal is taken from input to ... to pin 3 on s-video socket.
    Pin 1 ... & 2 on s-video socket is soldered to ground ...
    -Micky -Micky 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…

    ... a pretty good Composite/S-video to VGA adapter that does ... feed it with a S-video signal instead of a Composite. I ...
    Johan1973 Johan1973 September 2012 Hardware
  • Video generation using a CPUWe know it is possible to generate a video signal using a CPU, and this technique was often used on low-end computers in the early 1980's (for exampl…

    ... is possible to generate a video signal using a CPU, and this ... to emulate something like the video parts of the ECS chipset ...
    wilsonsamm wilsonsamm January 2013 Chit chat
  • 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 ... , but I noticed that the video output is a bit "decentralized ...
    DaRkHoRaCe DaRkHoRaCe February 2013 Hardware
  • Post Composite mod video not bright enough - FIXHiall, I have a few Spectrums and decided to modify them all with the composite video mod, i.e. redirect the feed to the modulator direct to the out…

    ... them all with the composite video mod, i.e. redirect the ... small 8" 4:3 LCD video monitor which is ideal for ... (2k2). This bias's the video signal a little with the result ...
    IanJ IanJ September 2014 Hardware
  • I recapped my 128K toastrack, installed stereo kit and detached audio from video, but...Hello fellow forumers! I'm seeking for help: I've finally decided to change all electrolytic capacitors of my 6U (with all Panasonics 105oC)... Af…

    ... . Then I detached audio from video signal by lifting the right side ... snow). This means that every video output is affected! Spectrum was ...
    geosiou geosiou October 2015 Hardware
  • velleman k8036 - Video signal cleaning?http://www.velleman.eu/products/view/?country=es&lang=en&id=348080 Although velleman reports having discontinued this kit and its primary use was …

    ... it also works for "normal" video cleaning.

    Once it ... possible to perform the composite video/ s-video mod for the spectrum ... , I was wondering if some video quality uprate would result from ...
    Renegade Renegade November 2015 Hardware
  • ZX Spectrum video waveformsAll work for this post was done on a ZX Spectrum issue 1 board (16k bytes of RAM only). This was what the Spectrum displayed on the TV screen: [i…

    ... ] is the inverted Y video (monochrome / luminance composite video) signal from the ULA ... . This is a DC signal the DC ... [/b][/color] is the composite video signal going into modulator. Set to ...
    1024MAK 1024MAK September 2016 Hardware
  • My first attempt at Gigascreen interlacingWonderful. Did some research on the port which controls memory paging and wrote a short BASIC programme to switch pages 5 and 7 in and out of the scr…

    ... one near the other, not interlaced. In this mode the pixel ... /> Yes, it can work as interlaced if so desired (625 lines ... , without the benefit of modern video card antialiasing filters.
    < ... that can output (also) S-Video signal, with the solely reason to ...
    secarica secarica May 2004 Development
  • The vduHi. I recently wrote off my trusty green screen vdu monitor. Using the speccy on the tv just isn't the same. Is there any way to connect the speccy t…

    ... modulation of the internal composite video signal, without the impedance matching you ... Part of its signal set is a composite video pin, so any ... CV is 50 fields/second, interlaced, at 15,000 lines per ... monitor is 60 frames, non-interlaced (equiv. to 100 fields/ ...
    Phu Phu May 2008 Hardware
  • My joy Of playing PS2 is now gone...My GF just bought a new TV, one of those modern HD ready TV's. it looks great and slim, and aparently everyone says it has a great image, but since…

    ... using the full RGB SCART signal.

    Blockiness is ... signals is that they're interlaced - each frame of the ... /> To actually upscale moving 50Hz interlaced video to high-definition requires a ... with the timing of a video feed - movements that were ...
    joefish joefish April 2009 Chit chat
  • PS2 Spectrum Emulation ProblemHi, The PS2 Spectrum emulator, when copied to a CD, doesn't work. Does anyone know how I can get a spectrum emulator running on the PS2? Thanks

    ... [/B] 15 kHz signal meaning you only get interlaced video which is wrong ... somebody hacks its video encoder to do the progressive signal as well ... and did not introduce progressive video in Xbox.
    maiki maiki October 2009 Emulators
  • Graphics: What is the point of ...... actually, let me apologize for such a stupid vague thread title, I so wanted to avoid this but the whole sentence I wanted to write is just way t…

    ... (eg CRT) is interlaced, you will see an interlaced image.[/QUOTE]I ... is part of the composite video signal. It's just the Speccy ... as the upper or lower interlaced image, so you wouldn't ...
    joefish joefish April 2010 Sinclair Miscellaneous
  • 50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…

    ... ]ZX Spectrum doesn't generate interlaced signal. [/QUOTE]

    video.

    ... zx spectrum generates progressive signal or just one ... half of the interlace signal? I guess this ... zx spectrum outputs video signal?
    Arda Arda April 2011 Development
  • 50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…

    ... difference between running an interlaced and progressive signal on a LCD screen ... you are serious about precize video signal.
    maiki maiki April 2011 Development
  • 'Jumping' Composite Video Output on +2bNot having much luck recently... I have converted my +2b to composite out using the info contained [URL="http://www.secarica.ro/html/plus3_hardware.…

    ... 've tried shooting a brief video to illustrate my problem, without ... trying to use an Amiga interlaced video mode on a normal tv ... for the flicker, the composite signal would be adequate for my ...
    napoleonblownaparte napoleonblownaparte June 2012 Hardware
  • 'Jumping' Composite Video Output on +2bNot having much luck recently... I have converted my +2b to composite out using the info contained [URL="http://www.secarica.ro/html/plus3_hardware.…

    ... 've tried shooting a brief video to illustrate my problem, without ... trying to use an Amiga interlaced video mode on a normal tv ... for the flicker, the composite signal would be adequate for my ...
    guesser guesser June 2012 Hardware
  • Spectrum Emulator that supports low resolutions and runs smoothlyHello to All, I have been trying to find a spectrum emulator that will work well through my CRT TV (using RGB to Scart) Most emulators seem to supp…

    ... generates a 312 line video signal at 50Hz and that ... a total of 304 actual video lines. Some of these ... 352 "pixels" worth of video which is divided up into ... are a 625 line interlaced signal which means that one ... now we treat the video as having 576 visible ...
    guesser guesser July 2012 Emulators
  • 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…

    ... to generate a proper colour video signal. At first I thought my ... -that is, it's an interlaced signal-.

    This is the ... "gigascreen" mode. With a true interlaced signal, these screens would show with ...
    mcleod_ideafix mcleod_ideafix October 2012 Hardware
  • Small MonitorShowing off my new toy which I think is pretty good seeing as I was getting very limited access to the TV and its too cold to go out to the man cave …

    ... monitor designed to display composite video signals. It just lacks ... was indeed a 625 line interlaced signal. Of those 625 lines 576 ... outputs a (slightly bastardized) 576i signal with no actual interlacing - ... top and bottom of the video signal to fit it onto a ...
    guesser guesser November 2013 Sinclair Miscellaneous
  • Small MonitorShowing off my new toy which I think is pretty good seeing as I was getting very limited access to the TV and its too cold to go out to the man cave …

    ... monitor designed to display composite video signals. It just lacks ... was indeed a 625 line interlaced signal. Of those 625 lines 576 ... outputs a (slightly bastardized) 576i signal with no actual interlacing - ... top and bottom of the video signal to fit it onto a ...
    rune rune November 2013 Sinclair Miscellaneous
<1234567…34>

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