While watching TV (Toshiba 43A61 Theater View), picture and sound just quit. When I turn TV back on, power switch comes on then begins flashing. Still no picture or sound. Unplugging set has no effect.
Does anyone have idea of cause. Estimate to have repairman fix? Would cost be worth fixing or should I throw away and replace entire TV?
An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 500 times.
Re: Toshiba 43A61 - No Picture, no sound
If your set all of a sudden won't come on, e.g., the screen is blank, but the LED on
the under the screen next to the on/off switch keeps flashing, then there may be an
internal fault on the set that needs to be reset.
To force the reset, try this:
Unplug the set and wait a few seconds
Replug and see if the video returns
Whenever the set senses an internal fault through its monitoring circuitry, it
essentially shuts down the set. The flashing LED provides the indication that a
fault has been detected. Removing power to the set resets the monitoring
circuitry. When plugged back in, the circuitry again does a check of the
system. If it finds that there truly is a problem, then the set is shut down and the
LED will again flash. In this case, you need to call a service tech. Most of
the time, however, the unplug/replug routine is enough to get the set up and running.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Hello! Does sound comes out of TV speakers? Or you have "home theater" hooked up to? In first occasion: TV turns on, stays on, display blinks once, then nothing? Inverter is at fault. Second occasion: TV turns on, stays on, display glows dark, sound OK, no picture: T-con board at fault. Third occasion: TV turns on, shuts off, sound is coming through "home theater"-OK. Power supply or inverter, or T-con are at fault. TV need major diagnostics and repair in every case. Let me know if you can handle that. Will guide you through the process. Thanks, Alex.
I would start with the Tcon but the main would do this as well, along with the power board...test the voltages coming from the ps board when its giving issues and see if they are ok, if they are try the tcon board
It also resets when you switch to a different Input... IF you have the Auto Aspect Ratio set to On! To set the Picture Size so that it won't change back each time, switch to the Input you wish to change (you'll have to do this for each Input separately), then go to- MENU > Picture > Theater Settings > Auto Aspect Ratio > and set it to Off. Once you've done this, your Picture Size setting will remain, even after powering off, or switching inputs ;)
I would try a power drain: Unplug the TV's power cable so the TV is not grounded to the house. Then press and hold in the TV's own power button for one minute to drain the capacitors. Plug the TV back in and see what happens. If the TV will still not turn on, I would say you have a problem with the TV's mainboard as a dead power supply will not light any LED's for you.
Two things to check on these when you get a black screen and only the power light, either a bad bulb or a bad fan. You can check the bulb, pull it out and get a meter and check for continuity across the two pins on the bulb, no continuity the bulb is blown. Also once you have the bulb out you will see the cooling fan in there, a vacuum and a air compressor to blow it out good is helpful. Check the bulb, clean it well, and try again. The blown fuse could also have been due to a stuck fan or blown bulb, i have seen the bulb blow and take out the fuse before on projection TV's, i have also seen cooling fans so full of dust and crud that they are stuck and drawing more amperage then they should and popping the fuse. I assume the 1.5a fuse that blew was on the mainboard inside? Some have an external fuse near the power cord input as well, but thats generally more then 1.5a.