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Video output questions...Two questions... [QUOTE]1. The yellow and blue colours seem out of phase on the display. Is this normal for an RF connection to the TV/monitor?[/QUO…
... than possible using composite video. It eliminates dot crawl and ensures the main ... -
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.…
... does not cure things like dot crawl etc that exist due to ... and 100uf capacitor going to video out on the emitter.
Video output questions...Two questions... [QUOTE]1. The yellow and blue colours seem out of phase on the display. Is this normal for an RF connection to the TV/monitor?[/QUO…
... composite picture comes up fine, dot crawl and all.
... work) or a positive video signal with a amplitude of ... that amplifies the (composite) video signal used for synchronizing to ... TV with such superchip for video and synchron signal processing.< ...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…
... true for all monitors. Composite video can be used as sync ... & 128k+). Both have great video though... interesting.
I ... . There was some flicker or dot crawl if I remember correctly.
ZX48 svideo modI have modded a ZX48 to have svideo output. The end of C65 that goes to TR2 (its an Issue 2 zx 48 ) has been lifted to get Chroma. Luma is taken fro…
... you usually take the composite video. And that is it. You ... stuck with the composite mod? (dot crawl hurts my eyes) :(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…
... to keep both video signals, RF and composite video? Would it ... of dot crawl. No miracles here - composite is composite. The S-video version ... could reuse it for S-video (which requires two sockets) ... modified the rest of the video circuit, turning the composite ...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…
S-video eliminates dot crawl. Dot crawl is caused by the compromises inherent in composite video - the ... once they have been combined. Dot crawl is particularly bad on the ... video at the correct brightness; it does not do anything about dot crawl ...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…
... ;766667]Dot crawl is caused by the compromises inherent in composite video - the ... once they have been combined. Dot crawl is particularly bad on the ... video at the correct brightness; it does not do anything about dot crawl ...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…
... use the Motorola MC1377 composite video encoder chip, which is different ... is much less cross luma (dot crawl) in the picture.Dot crawl?Hi, As I'm rather new to the hardware of the spectrum, just to confirm: is this video showing "Dot crawl" ? [url]https://www.youtube.com/watch?v=_U…
... by two to make the dot clock) and a 4.43MHz ... length - what we see as dot crawl.
I have modified ... two Spectrum to output S-video which avoids the luminance and ... problem altogether and has no dot crawl.Dot crawl?Hi, As I'm rather new to the hardware of the spectrum, just to confirm: is this video showing "Dot crawl" ? [url]https://www.youtube.com/watch?v=_U…
... .
Please check this video:
[url]https://www ... the SPECTRA, then the COMPOSITE video modification I made and then ... and manages to reduce the dot crawl to a minimum. However, you ...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 +…
... the +2 connected to a video recorder then composite to a ... gives a stable picture, the dot crawl is still there, but I ...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…
... your video and it is working! ;-)
No more dot crawl! :-D ... /> @rga24: Did you do a video about making this modificaction on ...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…
... modulator which has both composite video out and TV out.
dot-crawl issue? :)
[url]http ...Issue 4S differencesI decided to buy an Issue 4S PCB after reading much about them on here. It was originally in a plus case which didn't come in the sale. I've been run…
... a single transistor composite video mod using a BC549, ... video display at all. The display is pretty good and dot crawl ... the Spectrum video circuit already operates the video inverter transistor ... With a single transistor composite video mod, no further changes ...Dot crawl?Hi, As I'm rather new to the hardware of the spectrum, just to confirm: is this video showing "Dot crawl" ? [url]https://www.youtube.com/watch?v=_U…
... 'm so used to the dot crawl and general picture ropiness that ... NTSC filtering :)
Perfect video from a Speccy just leaves ...A. Baldwin Dot Crawl SuppressorJust found this: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=1000622[/url] What the heck was that modification...? :p It sounds good, bu…
... the big problem with the dot crawl was down to not having ... crystals so some of the video carrier waves were off?A. Baldwin Dot Crawl SuppressorJust found this: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=1000622[/url] What the heck was that modification...? :p It sounds good, bu…
... /> [I]"Do colors slide, and crawl to the side?"[/I] (and ... the big problem with the dot crawl was down to not having ... crystals so some of the video carrier waves were off?[/QUOTE ...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 …
... detail:
[I]?S-video eliminates dot crawl. Dot crawl is caused by the compromises ... inherent in composite video - the combining ... once they have been combined. Dot crawl is particularly bad on the ...Best composite mod informationJust got my 16K (Issue 3) working. I'm in NTSC land so I need to run a composite signal through my PAL<->NTSC converter. I know there are a ton o…
... -video) mod improves the display somewhat but does not completely eliminate dot crawl ... . S-video can, I understand. But ... not interested in an S-video mod right now. I'm ...DVD title sequenceHello I'm not sure if this is the best place for this - but let's see how we go. I run a little DVD making company here in Cardiff, and we are …
... 'd suggest doing the actual video on an emulator for a ... that suffers from blurring and dot-crawl.
It's also ... wait.
For the video, maybe you could fake something ...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…
... , I previously did the s-video mod on this spectrum according ... specifications, so composite video mod will surely suffer from dot-crawl.
Composit output on +2 and +3?I recently got hold of a dvd recorder for the purpose of recording speccy gameplay. It turns out that this particular recorder is not compatible wit…
The way the composite video is generated is entirely different ... example the 48k suffers from "dot crawl" which doesn't occur on ...Harlequin Rev G AssemblyAre there assembly instructions on the Rev G anywhere? I know there are some component load options wrt PAL vs NTSC on the schematic but I want to m…
Hope your build went well msansom. I also built a Rev G, but focused my build on being NTSC. Works great. I modded mine for S-Video output which comes in handy and cuts out the dot crawl I was getting with composite.I'm totally confused now, RGB, composite, SCART what?Hello everyone. I have a +2A coming from the UK and I am wondering how I'm going to connect it to a modern TV. The TV has inputs on the back that ar…
... staying with the crap composite video. And occasionally having the ... slightly better S-Video (one channel {conductor} ... for the luma video and a second channel for ... s-video modded 48k spectrum benefits from eliminating dot crawl and since ...Some questions about the Timex TC2048/TC2068I have been doing some research about the specs of these 2 machines but I suppose it would be better to ask for advice in the forum since I have neve…
... the video output (CVBS) of these machines show the same dot-crawl like ...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…
... to get rid of the dot crawl on my ZX Spectrum :-).[/quote ... listen carefully to rga's video on this matter and write ... have succesfully performed the s-video mod on both a 48K ... it will lead you to dot-crawl free picture. :)TV for ZX SpectrumPlease select your TV type
... TV via s-video because I can't stand dot crawl anymore. Plus ...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…
... looks so stable without the dot crawl now and this was the ... any old CRT with s-video input available at the moment ...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…
... note: most of the various video modifications shown in this thread ... protection against shorting of the video outputs.
So if ... lot of distorsion of the video output. Dot crawl is gone of course ...
