-
Is this pure bulls@*t or what?Read [URL="http://www.ebay.co.uk/itm/SINCLAIR-ZX-SPECTRUM-PLUS-48K-REFURB-COMPOSITE-OUT-/170691876340?pt=UK_VintageComputing_RL&hash=item27be0755f4#h…
... =guesser;562761]Further the composite video signal that is connected to the ... mod) is connected to the VIDEO line on the edge connector ... -
Is this pure bulls@*t or what?Read [URL="http://www.ebay.co.uk/itm/SINCLAIR-ZX-SPECTRUM-PLUS-48K-REFURB-COMPOSITE-OUT-/170691876340?pt=UK_VintageComputing_RL&hash=item27be0755f4#h…
... , the two parts of the video signal has to be derived by ... -
Does the usual composite mod damage Speccies?Hi people, Just browsing eBay -as you do - and I noticed this auction: [url]http://cgi.ebay.co.uk/ZX-SPECTRUM-48K-GOOD-COND-COMPOSITE-OUTPUT-SINCLAI…
... /2008/11/zx-spectrum-composite-video-mod.html[/url]
video signal.
Is it possible that ... the non-standard signal makes absolutely no picture on ... -
Does the usual composite mod damage Speccies?Hi people, Just browsing eBay -as you do - and I noticed this auction: [url]http://cgi.ebay.co.uk/ZX-SPECTRUM-48K-GOOD-COND-COMPOSITE-OUTPUT-SINCLAI…
... standard 1v/ 75 ohm composite video signal.[/QUOTE]
Is it not ... a DC offset on the signal? The input on the TV ... possible that the non-standard signal makes absolutely no picture on ... TV doesn't recognise the signal timings it may well just ... -
Does the usual composite mod damage Speccies?Hi people, Just browsing eBay -as you do - and I noticed this auction: [url]http://cgi.ebay.co.uk/ZX-SPECTRUM-48K-GOOD-COND-COMPOSITE-OUTPUT-SINCLAI…
... a DC offset on the signal? The input on the TV ... TV doesn't recognise the signal timings it may well just ... in electronics to fix the video signal. I mean soldering a wire ... -
ZX Spectrum +3 Query...Hi all, As common, I brought down my Spectrum from the attic the other day to have another stab at getting it running. I knew from the past it was a…
... to run and produce a video signal from the modulator all it ... -
LCD screensAre there any instructions anywhere on how, if it can be done, to connect a speccy to a bog standard LCD screen?. Google isn't being my friend. Wha…
... .dealextreme.com/p/composite-s-video-to-vga-converter-box-1280 ... will convert a composite video or S-video signal into VGA. The 48K ... Spectrum can generate a S-Video signal.
[QUOTE=ADJB;571427 ... -
Second Hand SpectrumHi just joined the Forum. I have picked up a Spectrum at a s/h shop and would like some advice please. I have had two ZX81's packed away for severa…
... -called 'back porch' in their video signal. Which makes TV's fail ... -
Second Hand SpectrumHi just joined the Forum. I have picked up a Spectrum at a s/h shop and would like some advice please. I have had two ZX81's packed away for severa…
... longer, and clean up the video signal too. Can also fit new ... -
What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…
... .
UPPER TRACE: composite video signal
LOWER TRACE: Z80 ... edge of the INT signal, the video signal changes its luminance, ... previous picture, the INT signal is triggered 22us after ... br /> About RAS, well, the signal behaves as expected: it falls ... -
What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…
... with the interrupt and the video signal traces, but put the ... edge of the horizontal retrace signal, the video signal has been already entered ... counter? If the INT signal were triggered when HCOUNT==0 ... for each component of the video signal is as described in ... -
Interesting finding. How to connect TV out?Hello. I was passing in the street, and repeired in a open plastic bag clearly abandoned. So, inside it there was: a CD, a ZX Spectrum 128k+2 and i…
... is a 625 line 50Hz video signal. A PAL colour subcarrier and ... -
What spectrum?I am going to have a gent send me some Spectrum hardware in the future. Me being a american and knowing nothing of the sort, what would be the best o…
... a 50hz, 625 line, PAL signal. Modulated onto a UHF carrier ... +2 provide the unmodulated composite video signal on their RGB out connector ... to load a tape audio signal into these machines from a ... -
faultyi have a zx48 that will not tune in it allways seems to be just out of tune what could cause this fault also half of the keyboard doesnot work there …
... /> The ULA is generating a video signal, so that component at least ... -
What spectrum?I am going to have a gent send me some Spectrum hardware in the future. Me being a american and knowing nothing of the sort, what would be the best o…
... model to output a base video signal. There are plenty of documentation ... syncs from the composite sync signal, and negating them, as CGA ... expects a positive SYNC signal, not negative.
- If running ... used to boost the audio signal to enable the use of ... -
(mini)monitor for speccy?hey guys, need a tip or hint for a mini monitor - which to use with Speccy? brand/type/parametres? preferably cheap solutions and where to get them. …
... it - how to get the video signal out of speccy's RF ... -
Please help! connecting speccy to a new style digital TVHi- I've been emulating for years but have just bought a real 48k Speccy to get that 'real' feeling of my youth (and to play my home programed games …
... sends a composite video signal. Please look for "composite video mod" in the ... hand, can send a RGB video signal to the SCART input of ... -
Problem with ZX Spectrum (B&W stripes)Hello. I bought a ZX Spectrum, and fortunately, it arrived today. Unfortunately, when I connected it to my TV, this appeared... [IMG]http://i.imgur.…
... it is generating a valid video signal, but a ULA fault could ... -
what is this crazy modfound a speccy in my loft yesterday,and it seems to have an external heatsink modd i havent the foggiest about speccys heres a few pics [url]http://i…
... for adding the sound signal to the video signal. This way you will ... -
what is this crazy modfound a speccy in my loft yesterday,and it seems to have an external heatsink modd i havent the foggiest about speccys heres a few pics [url]http://i…
... for adding the sound signal to the video signal. This way you will ... -
Would anyone be interested in......Hi, I'm wondering if there would be much interest in an expansion card for the speccy that gives a VGA output with enhanced gfx & sound capabilities…
... was the only one with video on the edge connector. If ... wouldn't use an analogue video signal anyway, you'd sniff the ... bus an duplicate video memory writes to your onboard ... -
128K heatsink no color in composite video and bad antenna outputI am currently repairing a ZX Spectrum 128K heatsink model. It gives no colors on composite video output, and very bad antenna output. I opened it a…
... ins't color in composite signal! (sure in spanish 128K model ... the scheme of +128K, composite video is taken from pin 7 ... to have composite video on +2A/+3, composite video is taken from ... will check where the composite video signal comes from tonight, just to ... -
128K heatsink no color in composite video and bad antenna outputI am currently repairing a ZX Spectrum 128K heatsink model. It gives no colors on composite video output, and very bad antenna output. I opened it a…
... burst is missing from the video signal, or not quite right.
video encoder TEA2000.
So ... -
48K COMPOSITE VIDEO infosI'm not familiar with the Composite Video, so I'm asking help to WOS. I've got a 48k with Composite Video Mod. I am used to my Toastrack, that I plug…
... control the colour difference signal. So you will control ... be neutral without colour difference signal.
The " ... from undesired signal content in the composite signal. To improove ... .
Unfortunately the video signal part of the spectrum is ... -
48K COMPOSITE VIDEO infosI'm not familiar with the Composite Video, so I'm asking help to WOS. I've got a 48k with Composite Video Mod. I am used to my Toastrack, that I plug…
... control the colour difference signal. So you will control ... be neutral without colour difference signal.
The " ... from undesired signal content in the composite signal. To improove ... .
Unfortunately the video signal part of the spectrum is ... -
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…
... . The
amplitude of the video signal is fixed at 0.3V ... for normal intensity
video, 0.4V for high intensity ... -
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…
... description I gather that the video signal is *not* TTL level, ... more difficult than if the video signal were also TTL level.
signal (maybe video to [I]one[/I] ... .4V is rather low signal level for analog video.
... -
48K Issue 3, noisy display.Has anyone here experienced and been able to resolve a problem that looks like this: [URL="http://drizzle.zigg.net/ZX/ZX106-display.jpg"]Photogra…
... an example of the composite video output of the problematic Spectrum ... the circuit, I found the video signal to be perfectly clean at ... added to the final output signal.
I followed ... />
Here is the composite signal at the output along with ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... RGB > composite video). The original scheme didn ... always had black-white video signal.
I spent one ... AD, how is the video signal, the timming of ... />
- Improved video circuit (thank to mcleod, don ... perfect timming. The signal you will see is ... -
Manic Miner ZX81Hi Guys, Can anyone explain why [url=http://www.worldofspectrum.org/infoseekid.cgi?id=0017539]Manic Miner ZX81[/url] is not able to reproduce the ex…
... can correctly decode the misformed video signal of first ZX81 ULA's ...
