Question about Televison & Video
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Posted on Jan 02, 2017
Tru using your remote to access the factory reset mode to default. It might be hard to find, but it should be listed in your tools or settings options somewhere. Also, you can unplug the set for 5 minutes and then plug it in again. This resets the computer in several models. It's like a hard reboot.
Posted on Jul 31, 2009
SOURCE: Hi, my Samsung 40" LCD TV's
Actually no board/part is defective - you have a bad contact that when the tv heats up it fails. Since the screen goes totally black but not light goes out on the tv and the sound still goes on then the problem is in the mainboard or the connection between the mainboard and the t-con board - a wide flat cable.
You must open the tv and reseat the connecting cables. If this doesn't fix it then the problem is in a soldering: you will have to remove the boards and check by eye every single soldering - redo all that look suspicious; you will probably have to move the components with your fingers to clearly see a bad soldering in their pins.
Posted on Nov 02, 2010
It seems problem with power supply board as there are few electrolytic capacitors in output section that would be leaky/ dried up, replace them to solve your tv problem.
Please note, if you are handy with electronics stuff repair and an replace parts in circuit board then can attempt to do it yourself because it requires soldering work with proper tools OR call local tv repairman to do this job for you.
Check following image of power supply board of Samsung LN40A450, capacitors have been marked that needs to be replaced.
Hope these info will help you.
Posted on Nov 30, 2010
SOURCE: my LG 42" LCD turns
first your going to need to disconnect any wires from the tv. then unplug the tv from its powersource (ex- outlet) then make sure no power is still stored within its capacitor by pressing the power button for five seconds. then lay down a plastic mat underneath the tv. then your going to need a phillips head screw driver, an allen wrench and a small rubber hammer. turn the tv around and using the screw driver remove the screws from the back of the tv, on your particular tv i believe there are 12 screws in all. carefully remove the back panel of the tv. then using the allen wrench unscrew all of the screws that hold the boards and electrical components to the front panel of the tv. remove all components from the tv. (they should all come out as one entity) now take all of the components and place on the plastic mat you have previously placed on the floor. take the rubber mallet and beat the **** out of the components and the board. once it is in snickers fun size pieces replace back onto the front panel. then carefully (without damaging any parts) put the back panel of the tv on and put the 12 screws back in place. carefully wrap the entire television in bubble wrap and personally take back to the store and order the store supervisor to refund your purchase. he will inspect the tv and showing what a horrible job that the mexicans did at the assembly facility, he will gladly give you another LG 42" and an HDMI cable for your troubles...
no, honestly go to the options menu on the tv, check o make sure its not on a sleep timer or stand by mode, if the tv has been dropped, either by you our the store in which you purchased it, it could have moved a small coil that tells the tv to turn off (makes the tv think its over-heating once it reaches a small temperature) or simply call the manufacturer and ask wtf is up.
Posted on Dec 22, 2010
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