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May 8, 2014 - Uploaded by ShopJimmy.com
TV Repair Help for a TV With a Black No Image on the Screen ...Sign in to add this video to a playlist. ... LCD & LED TV Repair - No Image & Blank Black Screen Flashlight ... Easiest TV repair - How to Fix Power [TV turns off, freezes, or won't ... 1:26.Samsung LED TV Blank Screen & No Backlights Basic ...
Sep 11, 2012 - Uploaded by Roberto Ramos
TV screen begins to flicker then screen turns black while the audio continues to heard. I'm unable to see the TV Menu options when screen turns off. ... After turning the TV OFF then back ON again, the screen will flicker and then ... 1:26. Samsung LEDTV Repair - T-Con Board Replacement - No Picture on ...
A blue line would be caused by an issue with either the blue LCD or blue filter portion of the optical block. Cost to repair would depend on the model of TV, but repair for these types of issues are best handled by professionals, as everything needs to be aligned perfectly or the picture will be funky. Probably time to start looking at a new TV.
If the TV works well with your dvd and regular programs there are no issues and the flickers due to commercials can be due to excess signal strength or even poor control from the set top box. Try with another set top box to confirm as some of them can process noise which can cause this issue.
Loss of backlight on an LCD television will give you this type of symptom. Since the picture fades slowly, there's a good chance you may have a cold solder connection in the power supply going to the inverter PCB. Cost of the repair from a service center should be from $120-200
We have this problem too, emailed LG Australia where we bought the TV from (heard that this was a warranty issue) and they told us to take it to an authorised repairer here in NZ. We telephoned 2 repairs (we are rural and carting a 5 foot TV about the place isn't easy) and the word is the part is no longer available and the last time the repairer undertook the work it cost over $NZ2000 to fix. We are disgusted that our very expensive TV hasn't lasted very long, nor has available parts.
This is no solution but a point in a probable direction.
A tech guy told me ALL the LCDs they have seen in their repair shop have "swollen" capacitors, this is due to voltage instability. Lowering the internal voltage regulator and replacing the swollen capacitors (which eliminate noise) apparently restores the LCD to new working quality. Without actually "seeing" my problem the tech said that should repair it. I have not tried this yet but eventually will begin that way.
I suspect that your backlight has gone out. If you shine a light on the screen can you see remnants of the picture that should be displaying? If so, it's definitely the backlight, and most likely the power inverter for the backlight. You can probably find a replacement inverter, but you may need a repair manual to install it. I'd recommend checking the warranty status first and sending it in for repair if you can.
I think you should call Toshiba and ask them for assistance. I am no expert on TV's, but i think that would be your best bet on how to repair and found out what happened to your TV. Call them at 1-800-631-3811. Hope this helps. :)