No. 1/2/7/8/9/channels

[Blu-ray]

Transmitter ok, lost channels on all 5 TVs.


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[adm]

Transmitter ok, lost channels on all 5 TVs.


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I assume that the booster/amplifier is supplying all TVs via its multiple outputs. If it has failed, or is no longer being powered, it may still pass the signals through it but at a much lower signal level. If any of your TVs report signal level values do they now look to be low/marginal, You may even be able to see the signal level for the MUX with the missing channels by selecting that channel, even though you don't get a picture. Usually a loft or head amplifier has its power supply supplied up _one_ of the aerial down-leads from a dedicated power supply (wall-wart) and is often situated behind a TV or PVR box. Make sure that the mains socket that this is plugged into is still supplying power.

My loft box (amplifier/distribution system for UHF/VHF (FM/DAB) and satellite triplexing) get its power from the upstairs lighting circuit (via a small value fuse). I would need to check that the upstairs lights still work before assuming that my loft box had failed.