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**Chris** · 18-11-2012, 18:03

Typically, if you have TVs in more than one room all connected to the same rooftop aerial, then there will be one cable coming down from the aerial into the loft, where it connects to a powered distribution amplifier. Such an amplifier also has several outputs, one for each room where you find an aerial socket.

So you're looking firstly for the cable that comes down from the roof, following it hopefully to where it disappears into an amp. The amp will also have a mains cable attached and, hopefully, some way of determining whether it is working (a power light, for example).

Find that and make sure it's switched on and all the cables are securely in place.

18-11-2012, 18:03	#14
Chris Trollsplatter Cable Forum Team Join Date: Jun 2003 Location: North of Watford Services: Humane elimination of all common Internet pests Posts: 36,930	Re: All TVs in house have no signal Typically, if you have TVs in more than one room all connected to the same rooftop aerial, then there will be one cable coming down from the aerial into the loft, where it connects to a powered distribution amplifier. Such an amplifier also has several outputs, one for each room where you find an aerial socket. So you're looking firstly for the cable that comes down from the roof, following it hopefully to where it disappears into an amp. The amp will also have a mains cable attached and, hopefully, some way of determining whether it is working (a power light, for example). Find that and make sure it's switched on and all the cables are securely in place.