KV-32FS120. Set started with occasional problem coming on. What I mean is you would have to hit the power supply button or remote power more than once to turn on. Problem got worse over several weeks until finally set doesn't power up at all other than no matter how many times you hit power! (8 blink code.) Any thoughts for repair or just right off set.
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Re: Power Problem AGAIN!! KV-32FS120
Wish I could reach the set from here; I'm pretty sure the problem is caused by a 50 cent (maximum!) part called a capacitor in the range of 4.7 - 100 uFd that is responsible for feed back that keeps the power supply ticking.
If you decide to have it repaired and the problem is as above, tell the tech to use a low ESR part and add a .1-.5 uFd ceramic capacitor in parallel to the one he/she replaces.
That cap will handle the fast rise times that causes the electrolytic cap to break down chemically and fail.
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The problem of your TV is in the power supply section.Maybe the regulator is deffetive thats why the power supply not comes on.Its maybe also the harizontal output transistor is deffective.So check the regulator an harizontal output and replace if deffective..
Unplug the TV Remove the cover wait until the TV cools then plug in, turn on and, it should come on... if it does; purchase a computer fan to cool the chassis of the TV wire it into the 12 volt side of the power supply and, install the cover
Capacitors in the power supply section. Same area where your power chord is soldered to the board. Be sure to discharge the set before attempting to work on it. High voltage kills. Good luck and stay safe!
It is impossible to guess at the parts without actaully troubleshooting the set with the proper setup.
From past experience, the areas that the fault for this normaly is, are the horizontal output ampliifer, main power supply, and sometimes there may be a problem with the vertical deflection amp.
In the horizontal output stage, with this set many times I have seen the flyback and output transistor go defective. When there aer problems in these areas, most of the time the power supply is damaged.
What is interesting, is ou say that this set is about a year old. In actual fact, this model is about 5 to 7 years old.
Considering the age of the set, I would be seriously looking at getting a new set rather than put money in to this one. This model is obsolete, and many of the parts for it are no longer availabe.