My Tv is 7 years old and has a habit of switching off and then on occassionally and at random.It can go for few days but when it decides to do this will do it a few times before settling down to normal running. The problem is that when it does this it effects the convergence(picture is still visible but colours are like 3d on top of each otheror extended out slightly) which can be fixed in a number of ways.1 switching tv off and waiting a few minutes and sometimes it will restore itself to normalafter swithching on again . 2 If this does not work sometimes a thump on the side of the Tv will do the trick. 3 After switching off and on as in 1 the colors align symetrically which allows use of the remote to converge the colors together. When the convergence goes the screen become distorted and you can not converge by remote control until you get the screen back to normal. I do not know whether the convergence causes the power to cut off and come back on or whether it is vice versa that the power cut off causes the convergence problem. Sometimes it will go for days without a problem then all of a sudden the problem occurs and it could go off up to 3 times in an hour before settling down. Can you help and give me some idea as to the problem as I have a repair man coming and in the City in which I live I only have the one repair agent for this type of Tv and on initial conversation this could be a costly repair so I would like to keep him honest by keeping my options open as to have him repair or persist with the problem. Thank You.
My blue is off by 1inch
First think I would look for if I was comming to your home, would be cold solder connections, and or poor connections on the plugs and connectors, in or, around the power supply, as well as the sweep supplys. Then I would concider monitoring the B+ for a while to see if its changing. If it was I would suspect the regulator IC, along with some capacitors in the power supply and sweep circuit. After all, the set is over seven years old you stated. If I found all these things to not be a contributor to the falure, then I would pull the set to the shop and most likly you would be given an estimate after I did extensive diagnoises with specialized test equipment. A set this old is "sitting in the middle of to Fix or not to fix", depending on how much and /or what the tech finds. Remeber you cannot get a set like this for under $1000 bucks. At least not a Sony!! But make sure you ask how strong are the picture tubes?? Are they a little weak? How weak are they? Are they at least at 50%? If they are don't bother to fix as they will only get worse. I wouldnt invest a dime in a set that had tubes that only measured at 60% or less. Its all up to your wallet!! Good Luck
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