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I think it is quite a strange a fault that I would put it out there for suggestions.
Fault - The sound on the TV goes 'mute' at periods of about every 3-5 mins(not consistently), and also goes mute as soon as you change channel. The only way to get the sound back is to turn the TV off and back on again.
The fault only occurs when we put the heating on! We put the heating on when the temp is about 15-17C in the room and we raise it to 20-22C. So we are only talking a 3-5C temperature change and this didn't happen during the Summer when Room temp. would have been at a similar level.
The TV is not near a radiator(the nearest one is 8 feet away). The heating system works by way of 'remote control' at 433MHz. The 'TV' we watch is through a Sky box but I'm pretty sure it's not this, as resetting this does not bring the sound back and the missus assures me it happened once whilst watching a DVD.
The TV is less than a year-old so I will be getting an Engineer round, I just wondered if any of you had any good ideas as what it could be? I have one(not entirely convincing idea) but I will wait to see if anyone else comes up with it
Not the type you smoke...the solder variety.
The time delay implies that heat is involved, which points at either a dry joint or a defective component. In all seriousness, have you tried hitting it? If that brings the sound back (even briefly) that that points at a solder joint problem.
In the old days that just meant running an iron over the board, but with the density of modern SMT and BGA devices that option isn't really there any more.
If you get an email telling you that you can catch Swine Flu from tinned pork then just delete it. It's Spam.
Slightly off-topic (I'm an expert on associating to old experiences):
In the minicomputer days, when computers where two meter tall 19" racks, I worked for a company making such machines. One customer experienced a crash every single day. The maintenance people ran all the tests available, without detecting any fault. After a lot of frustration, we placed two guys with loggers of all kinds directly connected to the computer, planning to "babysit" it 24/7 until it crashed again.
It must be explained that this computer managed a lot of automated equipment in a huge factory hall with about two hundred workers, placed up to the wall of this huge hall. The computer seemed to run without problems. Then around noon the "babysitters" jumped to the ceiling, clutching their hands to their ears to soften the sound from that really huge alarm bell telling the two hundred workers to go for lunch. Everybody immediately ran away ...and the computer had died. When the workers returned after lunch and the computer was dead, noone associated it with the lunch break, per se.
The cause of the problem was the huge hammer of that huge alarm, pulled by a huge solenoid, which crated such an intense field of electrical noise less than a meter away from that CPU, strong enough to kick it to death. The service men moved the computer a few meters to the side, to get away from that noise field, and the next day (and thereafter) the machine had no longer daily crashes.
Last Visit: 31-Dec-99 18:00 Last Update: 17-Mar-18 5:18