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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 ... -
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 more ... -
ZX-Uno moddingStarting with ZX-Uno case modding I have not yet received my ZX-Uno yet (it is in the post) but I know that I will have to do at least one mod …
... / + computers is a UHF video signal designed to feed into a ... as baseband video) is a combined video level signal (brightness and ... "Composite Video" does not tell you which video signal standard is being ... converts the Composite Video to a UHF signal by mixing ... -
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? -
Test / comments wanted: new composite video output for +2A/+3I've been fiddling with the composite video mods for +2A and +3... with no luck. Because neither desings in [url=http://www.secarica.ro/html/zx_zone.…
... been fiddling with the composite video mods for +2A and ... br />
The example throws video output through a voltage divider ... the signal and feed it to a 48k composite video mod. "Standard" composite video ... my computer I get same video output as with other ... -
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 ... -
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 black ... the 1.2Vpp signal to a 1Vpp PAL standard signal, but didn't ... work (in fact, I got a worster video ... ZX Spectrum, and boosting the video signal by reducing the 2.2K ... -
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 …
... a direct replacement for the standard ULA used in the ... lack of a back porch signal, which results in black ... , which alters the composite video signal and adds a back porch ... ? Built in composite video circuit, complete with back porch signal
? Switch ... -
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 -
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
... "Both sync signals are at standard positive TTL levels. The frequency ... Sync pulses to match the standard 9 inch Display Unit< ...
amplitude of the video signal is fixed at 0.3V ... -
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 ... -
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…
... enhanced +3 clone, built with standard logic circuits.
The double ... , without the benefit of modern video card antialiasing filters.
Video signal, with the solely reason to ... -
spectrum 128k +2 sound problemsi recently bought a spectrum 128k+2 grey modell on the net. but i cant get any sound from my games, i have connected the arial lead to the TV socket …
... , the encoding of the sound signal sometimes differs. This is in ... (like me) and use a standard German telly, you don't ... Speccy's sound because the signal can't be decoded properly ... cable that takes the composite video signal from the DIN plug at ... -
can't find the new modulator design ?I remember seeing on someones site a new schematic for a modulaor that would fit in the modulator case of the old spectrum does anyone know the one …
... ) but 75 Ohm is the video coaxial cable impedance (at least ... this result in signal deformation or HF degradation of video signal. So is ... for video signals. But 75 Ohm resistor is not in standard E12 ... -
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…
... read somewhere that the signal the vdu monitor jack outputs ... modulation of the internal composite video signal, without the impedance matching ... Part of its signal set is a composite video pin, so ... second rate (for a standard 640x480. Other resolutions will ... -
SAM Coupe' questionsHello everyone, As of yesterday I'm the proud owner of a Sam Coupe (yeah! also, a mint Vectrex and also waiting for my Z88 - this is my month!), how…
... ! If it's not a standard SCART cable why does it ... />
No, it's a standard 21st century SCART, so out ... socket ;) Just a slightly different signal on one of the pins ... right. RGB is the best video signal to use from the SAM ... -
Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…
... just feed the CV signal into a standard UM modulator.
video signal -
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
... the one used on a standard 48K, and that the trick ... colour burst clock and correct video signal encoder for PAL or NTSC ... -
Pera Putnik's RGB interfaceI am sure some (if not many) of you will have seen Pera Putnik's RGB interface [URL="http://members.tripod.com/%7Epiters/uvyrgb.htm"]circuit diagram…
... is necessary to avoid reflection (signal bouncing) on (relative) ... of the signal. The highest frequencies in video signal are about ... additional termination (the U signal in the mentioned ferguson ... a similar schematic using standard transistors and found it ...
