It is 15 months old. Tried turning off and on. Unplugged and replugged. LG comes up on screen for second then goes black. On light flashes red 3 times.
Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, [Exclude the model number] in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
SOURCE: TV quits working, screen goes black and red light next to power green light flashes 4 quick flashes.
The Sony diagnostic routine for 4 blinks indicates it to be a vertical deflection problem.
Did you see a solid horizontal line in the center of the screen prior to it going out? If so, that is a tell tale sign for vertical problems.
basic sony reset below
The STANDBY light will flash if the television detects an issue within the television. Some of these issues can be resolved simply by following the steps below to reset the television.
If the issue is still unresolved after following all of the troubleshooting steps, service may be required. Please note the number of times the STANDBY light flashes and relay that information to the service center
SOURCE: NO PICTURE, RED LIGHT ONLY FLASHES.
The red led would flash about 1 to 9 times, then stop's about 5 sec and restart.
There is nurmerous problem that may cause your ctv not to function, first commond porblem is power supply, second is defflection circuitry Vertical and horizontal, second is a bad solder connection very rarely, bad cap's is a factor or voltage regulator. You would have to get the schematic first to even try to think about troubleshooting. Lot's of technician or fedup with hight price for info's, all info should be free if compagny's like sony want's to help. There web site well it speak's for itself, not enough tech support. You can't call, there no one there or won't answer.
If you need the schematic I don't know how but maybe I can send you a link. First I would check for short circutry to see if you can solve it.
Regards
What about Bob
Timmins, Ontario
SOURCE: TV Picture Goes Black
I had the same exact problem.
I removed the bulb and cleaned it. There is a small screen at the top of the bulb and it was covered with dust. Once it was cleaned I replaced the bulb and it solved the problem.
Thanks to those who posted the solutions
SOURCE: Panasonic Projection HDTV Made 9/2003
my problem is that when i turn on my t.v there is the sound that the t.v turns on but there is no picture on the sceen and everything is fully black....
SOURCE: I turn it on, the
The tv have power supply board problems.Call Sony Corp. for ur tv warrenty repair.
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