I turn my TV On it trys to turn on but it can't, there is a sound like electrical winding up and down and than the TV will shut off
This sounds like a very common issue.
If set is hard to turn on (takes several tries)but will eventually turn on hereis what my guess would be.
Every set has a standby power supplythat is running 7/24 if the set is plugged in and it supplies voltage to theremote circuit that turn on the main power supply for the tv and hence turn theset on.
This is an area where companies cut corners by using lower rated voltage caps.By this I mean Standby usually provides under 10 volts to trigger the seton----what they do is use filter caps rated at say 10 volts max in a circuitwith 9 volts (example)=with the standby on all the time the filter caps(electrolytic caps) dry out and fail.
The problem usually begins where you have to turn set on or or two times andgradually gets worse--takes longer and more tries to get it to come up.
Once on it will stay on until turned off for a period of time.
The caps will begin to work better (regain some of thecapacitance) as they get hot--hence one it is on it will seem ok.
The beauty of this problem is most of themhappen when set is a year or two old (no warranty) and all you have to do islook at the top to locate bad ones.
They are generally black or blue and round and vary in --they have twoconnections each--a + for positive and a - for negative--not unlike a batterywhich in a way they are. The + and - are marked on top and bottom of most boards.
They are easy to replace and not expensive parts.
The tops are silverand metal looking with creases on top and if bad they will be puffed up ontop---tops must be perfectly flat with no brown material leaking top or bottom.
If this is your problem once you id them (make a drawing) you can begin.
Here is the critical part---on each cap is also marked the value like 220uf 10vdc---220 micro farad at 10 volts maximum.
If you find for example 6 puffed up and all are 10 vdc replace them with thesame value capacitance (like the 220 uf) but go up to at least in this case(from 10 volts) to a 16 or higher rated voltage cap.
The only issue is when you go up in voltage rated value the cap is larger sosometimes there is an issue of physical space for the replacement on the boardto fit them in.
The reason they cheapen these sets in this way is if 10 caps and you make25,000 sets there is a considerable savings in parts cost.
They do not care as long as it lasts past the usual one year parts warranty.
I have taken the time to be long winded because this really sounds like it maybe the problem you have.
See attached photo of a typical cap and if you have questions or need advicelet me know.
Look for puffed up caps on the power board that look on top like this.
SOURCE: Samsung HLP5674W DLP television shuts off after a few minutes
Make sure the color wheel is ok. If it is, replace lamp and ballast.
SOURCE: Samsung PC J5225 shuts down after 3 - 5 seconds
It sounds like the tv power supply has problems. you probably should call a service center about a repair.
there are "safety" features built in to any tv with a "crt" type of screen that will not allow the tv to run when there is a problem.
SOURCE: tv problem
The wner's manual should indicate what the flashing light code means, but the nmoise you hear is the lamp attempting to fire. This could be a bad lamp or ballast. I would first attempt to change the lamp as that is the least expensive option. Next, would be the ballast. These sets have many problem detection circuits designed to shutdown the set if any problem is detected at all. This is in an attempt to prevent additional damage. Check the ownner's manual for the code and try the lamp.
Update this with the results of those actions and we'll continue from there.
Thanks,
Dan
SOURCE: intermittant humming noise from 56inch Samsung
Did you find an answer to this? I have a 52" that has just started doing the same thing. TV is about 5yrs old
SOURCE: Samsung HLR5078W pop sound followed by a loud buzz then shut down
Your lamp burst. This model uses a lamp housing which does not have a filter screen on it. When the lamp bursts, hot pieces of glass and mercury (very toxic) drop straight down into the cooling fan below it. Although FixYa.com (implies I'm suppose to tell you how to fix it) I am going to tell you to call a servicer and have them clean that mess out of there. It's a health issue, I don't want someone unknowingly exposed to mercury on my watch. Let the servicer know what he is getting into. I hope this helps.
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