All posts by jb38
Below are all of jb38's postings, with the most recent are at the bottom of the page.
Bernadette: I had a look at the actual service manual for that model and nothing was mentioned about a master PIN code nor it even referred to in any way.
However I have made a few enquiries about that model which uses a Vestel T816 chassis, and its been reported back to me that if you completely unplug the box from the mains supply and leave it that way for a minute or two, then "before" reconnecting the power supply again if you "press and hold" the OK button whilst you reconnect the power supply that when the screen comes on again it will be showing first time installation.
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justin ball: I suspect that you have the PSM114 power unit and not the PSM114V type as was mentioned in your posting, as a PSM114V and a PUH141 amp provides amplification ranging from 10-20db via the adjustment screw located in a small hole on the bottom left hand face side of the power supply.
I will say though that the tuners fitted in BT Vision boxes leave a lot to be desired when compared to the likes of Panasonic or Humax types, but rather than experiment with attenuators which can be iffy in operation, and especially the cheap variable 0-20db gain types which in no way are as stable as the fixed versions, I would think about purchasing the proper PSM114V power supply as that is much smoother in operation and likewise gives superior results.
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Bernadette: If you have kept the OK button pressed until you seen the menu screen coming on and it wasn't "first time installation" then you must then have a variation on the chassis mentioned, as since my posting I dug out a similar model followed by me purposely entering the incorrect password, then I subsequently following this up by using the procedure suggested and it worked.
I unfortunately now have to say that unless someone else might have experienced a similar problem and has found some other method of rectifying it, then I cant see much hope of sorting it out except by using the long winded (very) method of coupling the devices RS232 socket into a PC then downloading the latest software, which of course by now isn't really the latest as the device is a few years old.
By the way this model is exactly the same as a multitude of others such as Hitachi HDR161 / Digihome / Sharp TUR160 / Durabrand / Technika etc, etc.
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James: You can view virtually all "free to view" Sky channels and you do not require a card to do it either, as the only purpose the card serves is to allocate the correct local news services for your post code rather than them covering default areas that's not applicable to were you reside.
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William : No! as the reason I suggested trying this is because that going by what you have reported it appears to be the case that when an "electrical" connection is made between the main aerial and the outer casings of the "F" connectors (in effect all metalwork) that this is whats cutting the signal out.
The approximate post code that you provided was suffice to verify that your Sky boxes modulator was not being swamped by a Freeview signal on the same channel and so that possibility can be left out of the equation.
Regarding the wire referred to, the whole purpose of this is to "induction" couple your main aerial system into the Sky boxes normal aerial input so that the signal could transfer into the Sky box without an actual electrical connection being made between both, as this in theory should allow the Freeview signal to transfer without the electrical component linking both which should stop the Sky signal from cutting out.
The wire having a proper connection into the Sky boxes aerial socket is just done for convenience, and the un-stripped end is to ensure that an electrical connection is "not" made between the wire in the Sky boxes aerial socket and the lead that goes to the wall plate, as signal transfer does not necessarily require a positive (wire to wire) connection to be made.
If you were an enthusiast in this field I would normally have suggested that you use two small capacitors (100pf each) to link the boxes braiding to the normal aerials same, and do likewise with the inners of both coax's, as this method gives a stronger signal.
Induction transfer was the reason for your TV receiving Freeview whilst the cable was on the floor not connected to anything.
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Alan McGregor: Yes, as the main test is to check what like the results are without any form of amplification in the system and take it from there.
By the way I only added my second (12:35am) "might be" posting simply because that a few years ago I used to travel along the A803 from the West en-route to the M80 and site on the hills to the left of the M80 / M9 junction that I was involved with servicing at, and l couldn't quite remember whether or not Kirkintilloch was slightly screened from the Blackhill transmitter in a similar way as is the Cumbernauld Village area, and the reason why a relay was necessary to fill in the RF dead spots that existed there.
However, going by what you have said you are obviously not!
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William: Simply imagine that you have a piece of coax that you have just chopped in two and you want to join it up again, the only difference being that instead of joining the inner to the inner you do it through one capacitor (inners of each cable joined via the capacitor) and with exactly the same thing being done with the braidings.
This of course should not be necessary and will only "in theory" stop your Sky signal from cutting off, as I suspect that there might be a potential difference between the outer of the coax plug and the "F" connectors same, although only a voltmeter would reveal that.
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William: Set it on a 250 volt or slightly more AC range and check if anything reads between the outer of the coax plug and the side of the "F" connectors, the latter connected into the Sky box but the coax connector "not". (free standing)
Should nothing be indicated then try it with the meter set on DC, giving an update on results, and now I am aware you have a meter get someone to view the remote TV position to check if the signal cuts out when you have the meter across these two points.
Another thing that I should have suggested a few postings ago was to temporarily position the remote TV near to the Sky box and connect it into the boxes RF1 socket with a jumper lead, then see if it still cuts out when you connect the main aerial into the box, as I want to eliminate any possibility of a problem existing with your wiring.
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Dave Lindsay: Re: posting 14th @ 12:55am. Well although I will agree that you are certainly quite correct in expressing some doubts about what I had mentioned to Stuart with regards to an aerial turning / polarity change test, and basically because of the comm's from Blackhill being on the same channels as Tay bridge's PSB's and the fact that this could seriously limit the chances of success, but what was mentioned was based on my personal knowledge of this procedure having achieved the desired effect at a residence approximately 1 mile to the West of the area in question, albeit it still being out with the reach of the Angus transmitter, but the Tay Bridge signal is not always particularly good along "parts" of the river line and with this making it much more easily nulled out by even the change in aerial polarity.
Of course the impediment that certainly does exist concerning this location is because that a true 90 degree null on Tay Bridges signal cannot be achieved, however the trees located in the signal path line help slightly to offset the impediment to a proper null not being achieved.
That said though, experiments such as these are always hit and miss as far as them being successful, and so this type of action is really more in the realms of an enthusiast, which of course not everyone is!
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Friday 14 September 2012 12:35AM
Alan McGregor: In addition to that already said and which still applies as the first measure, but on checking I see that you reside in the Kirkintilloch area and as such "might" be slightly screened behind the hill that's between Blackhill and yourself (the Cumbernauld effect!) and this will cut the usable signal, and so if still nothing is received then go into the TV's tuning menu / manual tune and enter mux Ch46 (BBC1) but do "not" scan it, because as soon as you enter the mux channel number the strength / quality should immediately be shown.
If the strength / quality is around the 60 / 70% or slightly more then press "search" or "scan" storing the results.
The other channels used by Blackhill are 43 (ITV) - 40 (HD) - 41 (10: ITV3 etc) - 44 (11: Pick TV) - 47 (12: Yesterday)