Question about Sony KV-32S42 32" TV
Help tv stuck on standby
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Posted on Jan 02, 2017
SOURCE: beko stuck on standby
There is a good chance that the power supply in your set was only operating in a marginal manner and taking the AC away and reapplying it can't get the supply to start up again.
Old style 'linear' power supplies were less efficient but also less complex and les liekly to fail.
The power supply in your set is almost certainly the later type called a 'switched mode' supply.
These convert AC inputs into DC, then with a higher frequency (50-100 kHz) circuit back into AC and finally into several DC voltages that supply the various circuits.
Although the path seems convoluted, this results in higher efficiency and, if very high quality components are used, a durable supply.
Unfortunately, most companies cheat on certain components resulting in a power supply that is prone to failure.
I doubt that the power supply is on a separate board in that set as one finds in the flat panel units so the whole board needs to be removed for service; something I generally don't recommend on CRT sets.
In other words, you need to find a surviving TV repair. This I do recommend and I suggest you check the number of complaints regarding all later types of sets; projection, plasma and LCD. The quality of even name brand sets seems very poor and too many people have sets barely out of warranty that are sick.
Posted on Jan 04, 2009
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