No signal to TV when 5000 is powered on

Forum Forums Freeview HD FVP 4000T, 5000T No signal to TV when 5000 is powered on

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  • #19615
    Anonymous
    Inactive

    My Samsung telly loses TV signal when my Humax 5000T is powered on – switching off the 5000T restores the TV signal. If there was no signal with the PVR switched off then I’d understand, though I have eco-mode switched off in the 5000’s settings.

    Can anyone explain why this is happening? My 5000T was purchased with the latest firmware already installed.

    #83964
    grahamlthompson
    Participant

    Turn off CEC control on the TV. If that doesn’t fix move the 5000T to a different HDMI port on the TV.

    #83965
    Anonymous
    Inactive

    Maybe once the Humax is on there is interference from the HDMI cable into the TV’s aerial cable. Try moving them as far apart as you can.

    #83966
    Anonymous
    Inactive

    A1944 – 1 day ago  » 

    Maybe once the Humax is on there is interference from the HDMI cable into the TV’s aerial cable. Try moving them as far apart as you can.

    Did that and it seems to have made a difference. Time to replace the HDMI cable I think.

    #83967
    Anonymous
    Inactive

    Same for me turn on box, switches on TV automatically no signal. Turn off then on again work’s perfectly. Hisense tv

    #83968
    Anonymous
    Inactive

    giskard – 4 weeks ago  » 

    A1944 – 1 day ago  » 

    Maybe once the Humax is on there is interference from the HDMI cable into the TV’s aerial cable. Try moving them as far apart as you can.

    Did that and it seems to have made a difference. Time to replace the HDMI cable I think.

    HDMI cable replaced and moved as far away from aerial lead as possible, but it’s still an issue although now it’s intermittent when the Humax is powered on.

    Could my FVP-5000 be faulty? Surely it shouldn’t be generating so much interference that it affects the TV signal?

    #83969
    grahamlthompson
    Participant

    giskard – 13 hours ago  » 

    giskard – 4 weeks ago  » 

    A1944 – 1 day ago  » 

    Maybe once the Humax is on there is interference from the HDMI cable into the TV’s aerial cable. Try moving them as far apart as you can.

    Did that and it seems to have made a difference. Time to replace the HDMI cable I think.

    HDMI cable replaced and moved as far away from aerial lead as possible, but it’s still an issue although now it’s intermittent when the Humax is powered on.

    Could my FVP-5000 be faulty? Surely it shouldn’t be generating so much interference that it affects the TV signal?

    HDMI cables generate RF in the UHF band, it’s nothing to do with the box. If you have cheap poorly screened coax interconnects it can knock out terrestrial TV. Make your own coax interconnects using double screened satellite grade cable.

    I use screw on f connectors and belling lee converters as needed.

    https://www.screwfix.com/p/labgear-pf100-satellite-coaxial-cable-25m-black/58592

    https://www.screwfix.com/p/philex-coaxial-f-plug-pack-of-10/17061

    https://www.screwfix.com/p/labgear-f-to-coax-plugs-pack-of-10/39772

    https://www.screwfix.com/p/labgear-f-to-coax-adaptors-pack-of-10/33532

    https://www.youtube.com/watch?v=jjMiCgyeFm4

    #83970
    Anonymous
    Inactive

    grahamlthompson – 5 months ago  » 

    giskard – 13 hours ago  » 

    giskard – 4 weeks ago  » 

    A1944 – 1 day ago  » 

    Maybe once the Humax is on there is interference from the HDMI cable into the TV’s aerial cable. Try moving them as far apart as you can.

    Did that and it seems to have made a difference. Time to replace the HDMI cable I think.

    HDMI cable replaced and moved as far away from aerial lead as possible, but it’s still an issue although now it’s intermittent when the Humax is powered on.

    Could my FVP-5000 be faulty? Surely it shouldn’t be generating so much interference that it affects the TV signal?

    HDMI cables generate RF in the UHF band, it’s nothing to do with the box. If you have cheap poorly screened coax interconnects it can knock out terrestrial TV. Make your own coax interconnects using double screened satellite grade cable.

    I use screw on f connectors and belling lee converters as needed.

    https://www.screwfix.com/p/labgear-pf100-satellite-coaxial-cable-25m-black/58592

    https://www.screwfix.com/p/philex-coaxial-f-plug-pack-of-10/17061

    https://www.screwfix.com/p/labgear-f-to-coax-plugs-pack-of-10/39772

    https://www.screwfix.com/p/labgear-f-to-coax-adaptors-pack-of-10/33532

    https://www.youtube.com/watch?v=jjMiCgyeFm4

    Thanks for that, very useful.

    So I should use double-screened co-ax between my aerial point and the Humax, and from the Humax to the TV?

    #83971
    grahamlthompson
    Participant

    giskard – 23 minutes ago  » 

    grahamlthompson – 5 months ago  » 

    giskard – 13 hours ago  » 

    giskard – 4 weeks ago  » 

    A1944 – 1 day ago  » 

    Maybe once the Humax is on there is interference from the HDMI cable into the TV’s aerial cable. Try moving them as far apart as you can.

    Did that and it seems to have made a difference. Time to replace the HDMI cable I think.

    HDMI cable replaced and moved as far away from aerial lead as possible, but it’s still an issue although now it’s intermittent when the Humax is powered on.

    Could my FVP-5000 be faulty? Surely it shouldn’t be generating so much interference that it affects the TV signal?

    HDMI cables generate RF in the UHF band, it’s nothing to do with the box. If you have cheap poorly screened coax interconnects it can knock out terrestrial TV. Make your own coax interconnects using double screened satellite grade cable.

    I use screw on f connectors and belling lee converters as needed.

    https://www.screwfix.com/p/labgear-pf100-satellite-coaxial-cable-25m-black/58592

    https://www.screwfix.com/p/philex-coaxial-f-plug-pack-of-10/17061

    https://www.screwfix.com/p/labgear-f-to-coax-plugs-pack-of-10/39772

    https://www.screwfix.com/p/labgear-f-to-coax-adaptors-pack-of-10/33532

    https://www.youtube.com/watch?v=jjMiCgyeFm4

    Thanks for that, very useful.

    So I should use double-screened co-ax between my aerial point and the Humax, and from the Humax to the TV?

    Yes it can avoid interference from HDMI interconnects which radiate radio frequency interference in the same band (uhf) as terrestrial TV as described above. However I would use a splitter to give the TV and Humax box a seperate feed. That way you can turn on power saving in sby mode.

    https://www.screwfix.com/p/labgear-2-way-splitter-with-power-pass-all-ports/99105

    #83972
    Anonymous
    Inactive

    Traditional “brown TV coax with copper braid” is virtually useless for Freeview signals. Analogue TV signals were very tolerant to interference – remember those pictures which were more snow than picture?? – but digital is much more sensitive.

    Traditional TV coax is useless because the braid is so open it lets all sorts of interference through.

    Use satellite grade coax with a braid AND a solid metal foil sheath.

    #83973
    Anonymous
    Inactive

    Traditional “brown TV coax with copper braid” is virtually useless for Freeview signals. Analogue TV signals were very tolerant to interference – remember those pictures which were more snow than picture?? – but digital is much more sensitive.

    Traditional TV coax is useless because the braid is so open it lets all sorts of interference through.

    Use satellite grade coax with a braid AND a solid metal foil sheath.

    The coax cables from the TV aerial point to the Humax and from there to the TV are just flexible TV signal cables, don’t know how well they’re shielded. Are you suggesting I use solid core coax instead of the one’s I just mentioned?

    #83974
    grahamlthompson
    Participant

    JohnH77 – 56 minutes ago  » 

    Traditional “brown TV coax with copper braid” is virtually useless for Freeview signals. Analogue TV signals were very tolerant to interference – remember those pictures which were more snow than picture?? – but digital is much more sensitive.

    Traditional TV coax is useless because the braid is so open it lets all sorts of interference through.

    Use satellite grade coax with a braid AND a solid metal foil sheath.

    WF100 is available in a range of colours including brown.

    The key is solid copper centre core, foam dialectric, copper foil over foam dialectric and copper braid foil.

    WF100 and other cable specs here :

    http://www.satcure.co.uk/tech/cablespecs.htm

    #83975
    grahamlthompson
    Participant

    giskard – 11 minutes ago  » 

    Traditional “brown TV coax with copper braid” is virtually useless for Freeview signals. Analogue TV signals were very tolerant to interference – remember those pictures which were more snow than picture?? – but digital is much more sensitive.

    Traditional TV coax is useless because the braid is so open it lets all sorts of interference through.

    Use satellite grade coax with a braid AND a solid metal foil sheath.

    The coax cables from the TV aerial point to the Humax and from there to the TV are just flexible TV signal cables, don’t know how well they’re shielded. Are you suggesting I use solid core coax instead of the one’s I just mentioned?

    No he is suggesting you use satellite grade cables. Not all satellite cabling is the best choice. Avoid steel copper plated conductor and aluminium foil like RG6. Webro WF100 is the best in the 100 grade though PF100 will be fine for indoor cabling. See the above post.

    Avoid using the cable with air spaced dialectric outdoors because it makes an excellent water pipe into your connected kit.

    https://www.ebay.co.uk/p/Webro-WF100-Coax-Cable/629218735

    note the foil under the braided screen.

    #83976
    Anonymous
    Inactive

    JohnH77 – 20 hours ago  » 

    Traditional “brown TV coax with copper braid” is virtually useless for Freeview signals. Analogue TV signals were very tolerant to interference – remember those pictures which were more snow than picture?? – but digital is much more sensitive.

    Traditional TV coax is useless because the braid is so open it lets all sorts of interference through.

    Use satellite grade coax with a braid AND a solid metal foil sheath.

    Use this stuff.

    See What’s the Best Coaxial cable to use for… at http://www.satcure.co.uk/tech/cable.htm

    [attachment=68058,1070]

    #83977
    Anonymous
    Inactive

    JohnH77 – 22 hours ago  » Traditional “brown TV coax with copper braid” is virtually useless for Freeview signals…

    I guess in some circumstances that is true. However, back in analogue days my house was cabled with brown co-ax to every room for TV and VHF. The signal is fed thru an amp/distributor. I rarely use Freeview since I have Freesat but on 4 TVs my Freeview signal is excellent. I don’t doubt I could probably improve it with WF100 (which I have cabled satellite in) but in my case your assertion does not hold up.

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