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Tech help needed: Wireless signal sender
gilchrist1983
19-03-2012
Hi all,
I have bought an SV1715 one4all wireless signal sender to send sky signal from the living room to the bedroom. When plugging all the kit in I get perfect sound quality, but the bedroom tv comes up with a message stating "no video available".
My only concern is that on the instructions it states to plug the transmitting scart into the second scart port on my sky box - there isn't one (it's a HD box). The way i have done it is to unplug the scart from the sky box and plug the transmitting one in. My other theory was the signal is strong enough to carry audio but not video; but if that's the problem i would expect a scarmbled video signal not a message.
Any help is greatly appreciated.
Tom
chrisjr
19-03-2012
First off. Unplug the SCART lead from the transmit unit and plug it into the TV. Switch to the SCART input on the TV and check that it is getting both video and audio. That will check if the SCART lead and the SCART output from the SKY box are working or not.

If you don't get a picture then make sure the SCART is securely seated in the socket on the Sky box. If that does not restore the picture try another SCART lead.

If you DO get a picture check whether you are getting RGB or Composite video out of the Sky box. If you are getting RGB then it is possible the AV sender cannot use that signal format. So try setting the Sky box to output Composite (or it may call it PAL or just plain Video) mode. Check the TV can see the pictures using that mode then connect it back to the AV sender.

Now see if you get pictures at the other end. The second SCART on a Sky box was normally used for VCRs and was probably Composite only as few VCRs could handle RGB video.
misterbarlow
21-03-2012
some of those senders like the one I have dont have full 21 pins in the scarts and only the pins each one needs, the send and rcv scarts have different pins in them to relate to sending and rcving pins of the sockets, if you have the leads the wrong way round this may affect picture getting through...
try swapping them over maybe they are mixed up!!!
grahamlthompson
21-03-2012
Originally Posted by chrisjr:
“First off. Unplug the SCART lead from the transmit unit and plug it into the TV. Switch to the SCART input on the TV and check that it is getting both video and audio. That will check if the SCART lead and the SCART output from the SKY box are working or not.

If you don't get a picture then make sure the SCART is securely seated in the socket on the Sky box. If that does not restore the picture try another SCART lead.

If you DO get a picture check whether you are getting RGB or Composite video out of the Sky box. If you are getting RGB then it is possible the AV sender cannot use that signal format. So try setting the Sky box to output Composite (or it may call it PAL or just plain Video) mode. Check the TV can see the pictures using that mode then connect it back to the AV sender.

Now see if you get pictures at the other end. The second SCART on a Sky box was normally used for VCRs and was probably Composite only as few VCRs could handle RGB video.”

I have never seen a rf modulator that worked with anything but composite video. Some have RCA phono yellow inputs (plus stereo analogue).
spiney2
22-03-2012
standard video senders use only cvbs + 2 audio channels (for stereo)

whichever scart used should be set to cvbs, not rgb or yuv (i cant remember which options the sky digibox gives).

alternatively use a rca to scart lead + use the rca sockets on sky. cheap from tesco etc ...

.... the tv also needs to be set for cvbs .....
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