Question about Televison & Video
No picture/sound, can't turn on as it switches from on to stabdby by itself.
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Posted on Jan 02, 2017
The problem, on the AE6B chassis at least, is usually an MCZ3001DB chip. There are three in the average Sony TV, one on the so-called A-Board and 2 on the D-Board. Usually the problem is caused by a faulty one on the D-Board near the two large switching FET's. In this case, replacing this will fix the problem.
Posted on Nov 19, 2008
The problem either the on/off button is faulty or a heat sink not doing it's job.
The on/off button simply toggles a low voltage circuit that powers your tv. If it is dusty, it may complete the electrical circuit and send a false signal.
A heat sink may be dusty and unable to dissipate heat. Overtemp protection may be switching the TV off.
what you should do is to get a can of compressed air, open the back of your tv and clean the dust off the circuit boards.
Posted on Dec 13, 2010
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