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  • S-Video kit for 128k modelsAs discussed in this thread: [URL]http://www.worldofspectrum.org/forums/showthread.php?t=33768[/URL] My arm has been twisted to do an s-video mod ki…

    ... -video when it?s got RGB.

    Have you looked ... any way to display an RGB signal? That's why I designed ...
    guesser guesser April 2011 Hardware
  • 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…

    ... fine. not as good as RGB, and little worse than s ... that CVBS uses only one signal line.
    orange orange April 2011 Hardware
  • 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…

    ... [B][COLOR="Blue"]Component YPbPr / RGB Scart[/COLOR][/B]

    signal in the way I feel ... CVBS a poor over-compressed signal which is substandard to [b ...
    Zetr0 Zetr0 April 2011 Hardware
  • Microvitec 1431 MonitorI've been lucky enough to get my hands on a Microvitec 1431 monitor, the one with a dedicated Spetrum input. This works great on a 48k with the in…

    ... as TTL level video output... RGB and I - with CSync and ... see's the Composite video signal being stifled.

    ... -to-front: collecting a signal on the output-line and ... boosting/emitting a signal on the input-line. < ... get a poor / weak signal.
    Zetr0 Zetr0 April 2011 Hardware
  • yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…

    ... . just z80 and current switching using the out instruction ( ... client A controls RTS signal and client B controls ... CTS signal. lets rename these signals ... and RTRB. when RTRA signal is 1 then client A ... receive. and when RTRB signal is 1 client B ...
    tstih tstih April 2011 Development
  • Amperage drastic reduction in a rubber 48KWell, I am now with the approach of a drastic reduction ZXSpectrum amperage. As a first step would change the Z80 processor for other (Z80C). Unfortu…

    ... is plumbing up the Composite signal to the LCD panel, then ... /B-Y encoder to composite/RGB. In fact a small PCB ... -Y/B-Y to composite / RGB encoder
    Zetr0 Zetr0 April 2011 Hardware
  • RGB to VGA convertor for ZX128/+2/+2A/+3David Luftner release source code (VHDL) of SCANDOUBLER for ZX128/ZX128+2/+2A/+3: [url]http://velesoft.speccy.cz/other/scandoubler-for-zx128_fixed_by…

    ... VGA input, or will the signal be for PAL only?[/QUOTE ... only use conversion from 50Hz RGB output to 60Hz VGA output ...
    velesoft velesoft May 2011 Hardware
  • RGB to S-Video and Composite Adapterif I produced a dongle that generated composite and s-video from the RGB socket on +3 and Black +2 spectrums would anyone be interested? I'm thinkin…

    ... ]
    these will take the RGB signals and and a colour ... to be compatible with TTL RGB signals too... I suppose power ... ohm outputs at the standard signal levels without any additional hardware ...
    guesser guesser May 2011 Hardware
  • Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …

    ... or Composite signal. When using an S-Video or RGB SCART input ...
    guesser guesser May 2011 Hardware
  • Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …

    ... or Composite signal. When using an S-Video or RGB SCART input ... case - I'm using an RGB-SCART connection most of the ...
    Alessandro Grussu Alessandro Grussu May 2011 Hardware
  • Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …

    ... or Composite signal. When using an S-Video or RGB SCART input ... , I have a fully wired RGB SCART.

    I guess ...
    absinthe_boy absinthe_boy May 2011 Hardware
  • Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …

    ... no such thing as an RGB VHS tape...

    [QUOTE ... have a fully wired RGB SCART.[/QUOTE]
    RGB SCART is neither ... or SECAM... it's RGB. An RGB signal doesn't have a colour ...
    guesser guesser May 2011 Hardware
  • Sinclair QL ProblemHi there. I purchased recently four Sinclair QL for a not small amount of money. Two german and two english, they are mixed: British or European conn…

    It might also be worth looking at the diagrams for making a QL SCART lead - I know that there are issues with RGB->SCART on the QL, due to a missing signal - I wonder if this may be the problem?
    rwap rwap May 2011 Hardware
  • Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …

    ... or SECAM... it's RGB. An RGB signal doesn't have a colour ... machine has a fully wired RGB SCART output.

    The ... RGB is transmitted as 625-line 50Hz analogue signal and recombined ... what is effectively a PAL signal with all the attendant dot ...
    absinthe_boy absinthe_boy May 2011 Hardware
  • Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …

    ... The RGB is transmitted as 625-line 50Hz analogue signal and ... is effectively a PAL signal with all the attendant ... it's not a PAL signal.

    I ... the object of having an RGB input.

    ... is genuinely outputting an RGB signal then the filters are ...
    guesser guesser May 2011 Hardware
  • Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …

    ... it is genuinely outputting an RGB signal then the filters are in ... you it is outputting an RGB signal.

    But I think ...
    absinthe_boy absinthe_boy May 2011 Hardware
  • RGB Peritel 8 pin output to 6 pin TTL RGB Cub monitorHi, I've recently acquired a Microvitec Cub monitor, children of the eighties may remember these as they were the standard monitors used in schools w…

    I think the different models of CUB have different RGB inputs. Either TTL or Analog RGB. The 128k and +2 produce a TTL RGB signal (R, G, B and Bright) whereas the +3 and black +2 output analog RGB.
    guesser guesser May 2011 Hardware
  • Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …

    [QUOTE=absinthe_boy;537197]I can assure you it is outputting an RGB signal.[/QUOTE]

    in that case I can assure *you* that it isn't going through the PAL decoder circuits in the TV :p
    guesser guesser May 2011 Hardware
  • RGB Peritel 8 pin output to 6 pin TTL RGB Cub monitorHi, I've recently acquired a Microvitec Cub monitor, children of the eighties may remember these as they were the standard monitors used in schools w…

    ... models of CUB have different RGB inputs. Either TTL or ... and +2 produce a TTL RGB signal (R, G, B and ... and black +2 output analog RGB.[/QUOTE]

    ... Opus Discovery he can use RGB input on CUB, but ... /> 2. Make a additional RGB connector that is not covered ...
    LCD LCD May 2011 Hardware
  • Question about divide +Hi A friend has sent my a faultly divide + to see if I can repair it. If I use this divide+ with a spectrum 48K (That works perfectly with my stand…

    ... 16 different DivIDE systems and switching between systems is possible from ... is good connect +5V instead signal MREQ on through edge connector ...
    velesoft velesoft May 2011 Hardware
  • LCD TVs (yes, again, but please contribute)I now the subject of LCD TVs comes up every few months, and those who know something about the subject must be tired of repeating the same advice, bu…

    ... /RGB/SCART of the console would convert it as a PAL signal ...
    The Starglider The Starglider June 2011 Chit chat
  • ZX Soundbooster (AY volume increase on a grey+2)Having dug out my grey+2 and run it through scart I've just noticed (to my horror) how low the ay is in comparison to beeper (+3 has ay and beeper at…

    ... 8 of TEA2000 - then PAL signal was little cleaner.

    signal never was usefull for me ... . I always prefered clean sound signal separately connected to amplifier.
    RGB (15625Hz).

    I think ...
    cygnus cygnus June 2011 Hardware
  • 128K blues, part +2: picture and tape driveI recently purchased an original (grey) +2 which sadly seems not to be fully working. The computer powers up but there is no way to obtain a stable p…

    ... wires like so (under the RGB connector)

    (click to ... see, I used yellow for signal and black for ground.
    RGB cable
    Zetr0 Zetr0 June 2011 Hardware
  • 128K blues, part +2: picture and tape driveI recently purchased an original (grey) +2 which sadly seems not to be fully working. The computer powers up but there is no way to obtain a stable p…

    I seem to recall that there is a signal missing in the Spectrum's RGB output which may be required by the SCART socket on some TVs - or am I barking up the wrong tree here?

    Certainly the QL suffers from this issue
    rwap rwap June 2011 Hardware
  • 128K blues, part +2: picture and tape driveI recently purchased an original (grey) +2 which sadly seems not to be fully working. The computer powers up but there is no way to obtain a stable p…

    ... there is a signal missing in the Spectrum's RGB output which ... issue[/QUOTE]

    no signal is missing.
    only problems ... ever had with RGB was
    'Pin 16 Blanking signal up'
    orange orange June 2011 Hardware
  • Spectrum +3 - No TV OutHi All, I bought a +3 the other day only to find the thng does not put out an image? What I mean is if I connected up the RF and try to tune, …

    ... wouldn't switch to RGB input mode until I ... So make sure you enabled rgb signal on your tv and not ... one before giving up on RGB out.

    After ... Now RF&RGB are both working, but rgb cable has a ... on scartpart, just to trigger RGB mode on my tv. Funny ...
    Arda Arda June 2011 Hardware
  • Spectrum +3 - No TV OutHi All, I bought a +3 the other day only to find the thng does not put out an image? What I mean is if I connected up the RF and try to tune, …

    ... wouldn't switch to RGB input mode until I ... So make sure you enabled rgb signal on your tv and not ... one before giving up on RGB out.

    After ... Now RF&RGB are both working, but rgb cable has a ... on scartpart, just to trigger RGB mode on my tv. Funny ...
    orange orange June 2011 Hardware
  • 128K blues, part +2: picture and tape driveI recently purchased an original (grey) +2 which sadly seems not to be fully working. The computer powers up but there is no way to obtain a stable p…

    ... and removing that, the video signal recover its color.

    RGB-to-scart cable, provided that ... grey to output an analog RGB signal the same as the +2A ...
    mcleod_ideafix mcleod_ideafix June 2011 Hardware
  • RGB to S-Video and Composite Adapterif I produced a dongle that generated composite and s-video from the RGB socket on +3 and Black +2 spectrums would anyone be interested? I'm thinkin…

    I just build RGB to Composite by using AD724. ... my TV can handle PAL signal, it just regular LCD TV ... NTSC TV can handle PAL signal.

    Here is how ...
    superfo superfo June 2011 Hardware
  • ZX Setup QuestionsHi guys! I have been reading around the forums and love what is goin on. Anyways I just got my first ZX Spectrum (16k, rubber keys, boxed and compl…

    ... 's a PAL TV signal. A VHF TV signal using PAL is ... still a PAL TV signal... shirley...
    PAL-D for ... it's receiving a TV signal yes? (using TV in a ... (not supporting the 50/60hz switching) or Black and white.
    beanz beanz August 2011 Hardware
<1…17181920212223…34>

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