Av/ RCA mod help needed

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Ramshorn
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Av/ RCA mod help needed

Post by Ramshorn »

Can anybody advise me on how to perform a modification to the tv output socket so an RCA cable can be used, as my picture is quite grainy and unstable. I have done such a thing on a 48k spectrum but not a QL, I'm thinking its probably the same procedure? Thanks.


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dex
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Re: Av/ RCA mod help needed

Post by dex »

No such mod is necessary, as the composite PAL video signal is already present on the "RGB monitor" DIN connector.
Just use pins 1 and 2.
See http://www.dilwyn.me.uk/docs/hardware/m ... ctions.jpg


Ramshorn
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Re: Av/ RCA mod help needed

Post by Ramshorn »

Thanks for reply, problem is I don't have a suitable monitor cable or monitor. So not quite sure what you are suggesting?. I wanted to use the tv output socket, it works but the picture isn't perfect.


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XorA
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Re: Av/ RCA mod help needed

Post by XorA »

Just put a jumper wire from pin 1 of RGB connector to center of modulator plug removing the resistor first.

EDIT: typoed the pin previously!


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dex
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Re: Av/ RCA mod help needed

Post by dex »

I thought that You mean this 48 kB ZX Spectrum video mod:
http://brianhoskins.uk/spectrumcompositemod/
This is not necessary on the QL.


Ramshorn
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Re: Av/ RCA mod help needed

Post by Ramshorn »

Loving the jumper wire idea I will do that, sorry for being a noob but do I need to do anything with pin 2


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XorA
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Re: Av/ RCA mod help needed

Post by XorA »

No modulator case is already connected to ground.


Ramshorn
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Re: Av/ RCA mod help needed

Post by Ramshorn »

That's great, I will try that and let you know the outcome ;-)


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