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Posted on Jan 02, 2017
SOURCE: regulator ic of sony tv kv-g21c1
I am not familiar with the particular model of Sony TV that you have. I can answer genericaly:
There are a number of voltage regulators typicaly used on TV sets. These are usualy IC devices, or a complete descrete circuit. The purpose of these are to regulate voltages that are used to operate various circuits. Most sets can typicaly have anywhere from about five to maybe even a dozen or more throughout the set, depending on the sophistication of the model.
The regulators, like any part in the set can fail with age and use. Sometimes they are damaged from other components failing, or when a regulator fails, it can damage the circuit areas that it is suppying. When the set is being service, the tech must check for other failed parts.
Posted on Sep 01, 2008
There should be circuit designations printed on the PC board. Without those, there are too many possibilities to give you anything useful. Can you provide those please?
Posted on Jan 21, 2009
The first thing is to try going in the tv's menu
It should be similar to this:
once you find something similar, run the channel setup and it should add in the channels
If that doesn't work, screw on the cable wire, unplug the tv for a good few minutes, then replug the tv and it should automatically scan
Hope this helps
Posted on May 01, 2009
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Dec 21, 2015 | Sony Televison & Video
3 Press TV POWER on the TV. (The TV will turn itself off, then back
4 Release RESET.
If this process does not solve the proble of your TV, its memory IC has damaged. Memory IC is one which holds the data we enter to the TV set, and the processed is stored. It is a nn volatile memory [the memory stored in it won't get lost even power is switeced OFF]; which holds all the data in. The data stored in it will retrive to main system processing IC each time we switch ON the TV set. This is an eight terminal IC, very samll one indeed, can be located very near to the main system control IC, at system control section. It can be repalced. This IC can be bought from most of the electronic spare part shops at your town. It is very cheap to buy. Even though it is very small and cheap one, its function in TV circuit is great. Almost all the functions data is stored in it each time we operate the system. It will have a specific number printed on it, and should be noted when buy a new one. Insist on that number, substitutions or an other number won't even switch ON your TV. OK.
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