There are some videos on youtube for fixing double image on TV.
SOURCE: DELL W2600 Power Fault
get yours replaced for free
http://www.dellcommunity.com/supportforums/board/message?board.id=si_hmtheatre&thread.id=2509
SOURCE: I have a Sharp lc-42d62u
Hi.
I do not think that a firmware or software update (if available) will make any difference. If the backlight starts and turns off, then it is either inverter, PSU or circuit controlling inverter (located on main controller board). The fact that you replaced the boards does not necessarily mean that everything is OK with newly replaced boards. I repair LCD TVs and I can tell you that the board swapping method is not effective or good with this kind of electronic. This is not a PC, if you replace all boards without testing, then you may get in more troubles than when you had the initial problem.
The T-con board is regulating the timing of signal to LCD. The T-Con board symptoms are in effect no picture and sound still going, but often the backlight does not go completely off, you usually get a faint flickering backlight. Before replacing the T-con, testing should be done reading voltage in the DC line that goes from PSU to inverter. If there is no DC voltage, then the problem is not the TCon. If there is DC voltage in to the inverter, but no high voltage out from the inverter, then the inverter is usually shot. For safety reasons testing with live power should be done by a trained person.
The other way to proceed is swapping TCon board. In this way there is also the chance that LCD panel failed, that is usually beyond repair.
Regards.
Ginko.
SOURCE: I have Toshiba 15
There are a few things that can cause this fault, but the most common is the High Voltage Capacitors that feed the backlights going bad. The invertor and power supply are on the same board (Vestel 17IPS01-2)
The caps are on the power supply board and are C355 & C356 (12pf 3kv) and C354 (4.7pf 3kv). If you replace these caps it will solve the problem in 99% of cases.
If replacing these three caps do not solve the problem then it may be easier to replace the power supply board... as fixing means replacing a tiny surface mount chip with loads of legs.
WARNING: The Power Supply/Invertor board can contain LETHAL VOLTAGES even when turned off and unplugged. if you are not sure, Pay someone to do it for you!
SOURCE: Replaced caps on the psu / inverter board, but
your inverter has gone , if you can see the screen faintly then the inverter isnt illuminating the backlight
it needs replacing
SOURCE: How does a T-con Board works?
It is difficult to type in all here by this window, as it is too much. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. http://electronicshelponline.blogspot.com/
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