Question about Toshiba 51H83 51" Rear Projection HDTV-Ready Television
My Toshiba remote and the Satilite remote programed to the tv started both failing to operate tv on occasions and now have failed completely leading me to believe it is in the tv not the remote. Does sensor behind screen need to be cleaned or replaced? How do you get to sensor if so.
I have a wild guess. I have the same tv and channel 72 is the proper channel to watch tv on. I don't know why, but maybe try channel 72 instead of the usual channel 3. Good luck, maybe a quick fix, maybe not!
Posted on Nov 27, 2007
SOURCE: TV remote control sensor
yeah,it's very easy.
pull out the bottom part(where the speakers are) - they are held with plastic hooks on the inside, they are =on the left and right side and a few at the top. just pull one end and the rest will come off easily.
remove a couple of screws holding the buttons assembly and the bottom of the screen.
slide the screen carefully upwards and when you reach about half way then it will come off.
behold...the sensor is infront of you, it's a small pcb with a light sensor on it. (if you see sensors at the very top or side...they are probably focus sensors)
sure it's not the remote?
Posted on Feb 23, 2008
The sensor is not the only fault that can cause the remote control to not work. The sensor is only one part of the circuits involved.
Between the sensor, there may be buffer amplifier stage, and then there is the main uPC.
What we do is send a remote IR data signal to the sensor, and on the circuit board in the set I follow the data signal along its path using a scope in reference to the service diagrams to see where the data loss is.
Personaly, I would not blindly buy a new sensor based on a guess without doing the proper tests.
Posted on Jun 13, 2008
On a scale of 1 to 10, 10 being the hardest: 9. This is the heart of the TV. You will need to make several adjustments to the TV once you reassemble the TV, most time consuming will be the convergence adjustments. This can take hours just to learn about. I hope this was helpful, best wishes.
Posted on Apr 22, 2010
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