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Thats usually caused by the Tconn board and or its connection also samsungs have been plauged with tab bond issues with the LCD panel itself. Send a pic of the issue to [email protected] and they will be able to tell you whats happening with it be sure to include the model number with the pic
Hi, A lot of these LCD screens have the same problem (strip of white,blue,red) lights on the screen.
Try this move the TV to another room to rule out any interference. Check all connections on back.
Good luck.
Check if the antenna or the cable is properly connected at the back panel. Check also if the TV is set to audio video system or to tv channel .The two must be set properly to receive tv signal.
It sounds like this is a problem with the inverter boards on the LCD panel. Unfortunately the inverter boards are usually only available with the whole LCD panel and the only way to fix it is by replacing the whole LCD panel. This is the most expensive part of the TV (about $1000) and you will need to take the whole TV apart in order to replace the panel. A new TV of similar make and model will usually be about the same price as the repair.
The main power supply will be the first place to check. You should have at least the standby 5vdc, which is used for the main board, when the power switch is activated, the main board will send out the signal to turn on the main power supply sections to power up the rest of the set. Look for simple thing like blown fuse or bad capacitors. Learn about what bad capacitors can do. http://en.wikipedia.org/wiki/Capacitor_plague
I just fixed this very same problem. The capacitors are
the problem. However, I think that if you have some minimal skills with
soldering, you can fix this yourself. You just need to take out the
system board, then the power supply parts are on the top right. The bad
capacitor(s) will be bulging at the top and possibly have some brown
stuff coming out. The ones that go bad are 1000microfarad, 10V, however
you can replace them with higher voltage. I got 35V caps from radio
shack for 1.59 each. You just need to solder out the bad ones and then
put the new ones in and solder. Remember that the negative end goes on
the side with the bold black part of the circle on the system board.
Then just cut off the extra ends of the capacitors. If you are capable
of doing this yourself, you will spend at most 6 dollars instead of
however much a technician costs.
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