All posts by jb38
Below are all of jb38's postings, with the most recent are at the bottom of the page.
Cecilia Jones: Just noticed that I had cut off the bottom of my reply when I pasted it into the reply box.
The booster referred to being on page 603 of the Argos catalogue, and either (25) the SLX variable type 534/4235 or (24) the Philex 534 /6130 or if your TV is also Freeview capable then the twin output type 534 / 6147 one output for TV and the other for the You-View box.
Of course these items "only" coming into the equation dependant on the signal levels seen indicated and especially the quality of the signal, because if its observed to be fluctuating to any great degree (diving to zero) then boosters will not help in this situation.
| link to this comment |
Kenmo: As far as the internal circuitry of the TV is concerned there are no links between audio volume and picture, and what you are reporting is inclined to suggest that the problem is caused by a faulty connection being triggered off by vibration, and so if that model has a headphone socket you should try turning the volume up whilst using the headphone, but though if by any chance the picture still breaks up than that can indicate a fault in the TV's internal power unit.
| link to this comment |
Floyd: As you are connected into a communal aerial system then the obvious question would be if you have checked with anyone else in the block to find out if the problem is solely confined to your installation or not, because if others are also experiencing problems then its the landlords responsibility to have the communal aerial system repaired.
By the way, if you are located in Malzeard Road then the communal aerial points to the Sandy Heath transmitter, although the imagery I am looking at is not bang up to date and so the aerial might have been repositioned since then to face the local Luton transmitter at less than 1 mile away, if though you could receive ITV3 / Pick TV etc before the problem started then it hasn't been.
| link to this comment |
Alan Hibbert: Philips TV's generally had an option for resetting the device, this being accessed via TV menu / installation / factory settings, if seen you should select to carry this out then follow it by a further auto tune.
You could of course try what Dave Lindsay has suggested first, but "some" Philips models do not completely wipe the memory clear by using the aerial out procedure, and if problems still exist after having carried out the "aerial out until" procedure then reset to TV.
| link to this comment |
Michael: Well although you are quite correct in what you have said insomuch that a group C/D aerial "is" stated as covering down to Ch48, however this figure has got to be interpreted as the gain level in most grouped aerials starts to taper off from a number of channels before the end of its quoted coverage range, and with low cost contract type aerials being by far the worst in this respect.
Of course this problem is not really noticed by anyone who happens to reside in an area of reasonably high signal strength, and for the obvious reason that any slight drop in the level received will still leave a good safety margin above the lower threshold cut off point of their receivers tuner, but though with this "not" applying to many who reside in an area where the signal received although being stable is being done so at a lower level, something I have observed as being applicable to many who have made complaints of their BBC channels having vanished when checks were made on their location / terrain etc.
Below is an example of what I am referring to, although even these figures have to be looked at from the angle that they represent the result of a test where the "constant level" signal source was positioned at one end of a field about the size of a football pitch and with the aerial being tested at the other, not exactly a similar situation to that found in real life.
Gain (curves), Again
| link to this comment |
Keith: No! as you are referring to completely different systems and with neither being compatible to each other.
That said of course only applies "if" you are describing the Humax box correctly as a "Freeview" device and which requires a normal aerial, although I take it that you are aware that your Sky+ box will still be able to receive all "non Sky package channels" without a subscription being in force? the only aspect of the box that will stop working being the recording / playback side of it.
| link to this comment |
Kenmo: Yes! try moving the coaxial cable around where it connects into the TV's aerial socket, and should this instantly result in the picture breaking then take the coax plug out and unscrew the plugs rear knurled ring which will then enable you to slip the cable out of the plug body complete with the polythene insulated section, then prise the sides of the compression ring free of the braiding so that you can check to ensure that the middle core of the cable is free from of any strands of braiding touching it anywhere.
But though before dismantling the coax plug, have a look directly into the TV's aerial socket and check that the sockets centre cup where the coax plugs middle pin slides into hasn't been accidentally widened, if it has then squeeze the two halves slightly together.
| link to this comment |
Kenmo: Just to add to that said something which I should probably have mentioned before, and being, "if" its only the picture that's being affected and the sound is perfectly OK then this eliminates the problem being caused by anything connected to the aerial input, however it does though unfortunately point to the problem being caused by a faulty connection within the TV itself, as although Panasonic's are extremely well made TV's no piece of electronic equipment can ever be claimed to be 100% immune from developing a fault.
Just for a test, reconnect the headphones and whilst viewing the picture tap the bottom underside of the TV near to where the speakers are positioned on each side (or bottom rear) with a rolled up magazine, the idea being to simulate the vibration caused by the speaker.
| link to this comment |
John Thompson : Was this found immediately after having carried out the retune on May 1st or has it occurred since then?
| link to this comment |
Friday 3 May 2013 7:54AM
Cecilia Jones: In addition to that said, if your problem is being caused as a result of the frequency change on April 10th which now requires your aerial system to receive lower frequencies then you can test this out if your You-View box has a manual tuning facility.
If it has then go into the tuning menu / manual tune and enter Ch50 (Winter Hills BBC) into the box but do NOT press search or scan, because if the signal is there its level should be seen on the indicator bar, make a note of the level being indicated (if) then change the channel entered to Ch59 (Winter Hills ITV1) likewise noting its level, if the BBC's level is found to be considerably lower than ITV's then the problem is indeed caused by a deficiency in the aerial system, as the signal from the BBC will be sitting under the level required for your You-View box to resolve a picture.
By the way, if the aerial is exclusively yours and the difference in levels between the ITV and BBC aren't that terribly much, then in many cases the problem can be resolved by using a booster.