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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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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? -
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 -
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 ... -
+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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Spectrum +2 power supply - voltages on each pin..?My +2 suddenly stopped working yesterday. It was working fine earlier in the day and now the power light will not go on, nor will the tape drive and …
... drive and there is no video signal at all. Having run a ... -
Spectrum+ - multiple issuesHi all Yesterday I picked up a Spectrum+ (via eBay) to add to my collection. Now, before any of the names I recognise from the last few months of l…
... is some drift on the video signal which is clear but in ... with repairing vintage radio/tv/video etc and has said he ... -
Sinclair 128 K ZX Spectrum +2 faultyI have a problem with my new Sinclair 128 K ZX Spectrum +2. The title screen shows a picture that has a convergence error. Around the signs are yello…
ZX 48K removing HF modulator?I don't need the HF modulator because I use the video signal. Which parts can I remove? HF modulator. The 2 crystals. Something else? Micky
I don't need the HF modulator because I use the video signal. Which parts can I remove?
HF modulator.
The 2 crystals.
Something else?
MickyHelp, How to RGB to VGA Connector on +2A ?Hi, How would I go about converting the RGB output connector from ZX Spectrum +2/A to VGA type of connector. I found this device [url]http://www.am…
... and convert it to S-video NTSC signal (I'm in USA ... +2/A outputs 15Khz RGB signal correct? Is there some adapter ... convert the actual 15Khz video signal to S-video.
Thank you ...Challenging the orthodoxy - Composite modWell, what's brought this on is two things: firstly I composite-modded an Issue 4S board this weekend in preparation for the Vintage Computing Festiv…
... +5v feed, and connect the video out from the motherboard directly ... stages of amplification that the video signal gets before going to the ... low output impedance where the signal goes into the TV modulator ...RGB SCART Not Working on ZX 128K (heatsink)I've just received a SCART RGB to HDMI converter and it is not working with my ZX 128K (heatsink). I do have the correct 128K SCART cable (which is d…
... RGB SCART problems, maybe the signal is too weak? How could ... signals or correct levels of signal?
Unfortunately I do ... /> EDIT: To add: The RF video signal on the 128K machine is ...Problems with a gray ZX Spectrum +2Hello. First of all, thank you for receiving me on this forum. I'll try to help everybody as well as I can Said that, I want to do two questions abo…
... it outputs a very low video signal, so it appears in ... lower the 1.2Vpp signal to a 1Vpp PAL ... signal, but didn't work (in fact, I got a worster video ... Spectrum, and boosting the video signal by reducing the 2. ... well connecting the video to the video input on the ...ZX 128 keyboard woesJust scored a 128K speccy at a fair, but it has some wierd problem with the keyboard. It seems that some keys are 'stuck' or not registering properly…
... pressing fire. Also the tv signal is great, it doesn't ... 't cope with 1990's video signal..)
So, what works ...New ZX-ULA2An upgraded / replacement ULA for the Sinclair ZX81 is now available. The ZX-ULA2 is a direct replacement for the standard ULA used in the Sinclair …
... lack of a back porch signal, which results in black ... , which alters the composite video signal and adds a back porch ... signal.
However, the ... ? Built in composite video circuit, complete with back porch signal
? Switch ...Should I sell a boxed ZX128 as original as possible?Normally I add stereo audio to all 128K ZX Spectrums I get my hands on. At this moment I have a couple boxed heatsink models waiting to be offered o…
... capacitor adds sound to the video signal before it's fed into ... negative consequence that the composite video output is less perfect.
video output is perfect.
But ...old PC with Monocrome Monitor Out.So as discussed in the Carboot sale thread, I have brought and old Apricot Xi. It takes a monochrome monitor via a 9 pin D connector. Now I don't ha…
... connection
8 ground (signal ground?)
9 video signal
and ... . The
amplitude of the video signal is fixed at 0.3V ... for normal intensity
video, 0.4V for high intensity ...128K Toastrack colour smearHi guys! I got this 128K toastrack and connected it to my TV composite video input extracting the video signal directly from PIN 1 out of the rear R…
... to my TV composite video input extracting the video signal directly from PIN ...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…
... output into a CVBS/S-video signal.
I showed the ... for a reason: the component video signals originally generated by the ... as output (and incidentally, S-Video)
So, at ... piece of wire to get video output. For ULAPlus compatibility, a ...
