Question about Televison & Video
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When you have a remote control that does not work---some buttons either do or do not work correctly the most common cause for this is something got spilled on the front of the remote--it does not have to be a large amount.
The way all infrared remotes work is there is circuit board inside with black carbon lines etched on it--this includes lines for each funtion.
The buttons on the outside of the remote are actually one large rubber like mat and on the bottom side are coated black button like parts---when you press a button on the keyboard--the button part on the bottom of the mat touches lines on the circuit board and directs the remote to send a infrared signal to the unit it conrols.
In this situation you have two choices---
1.) Most remotes can be taken apart and cleaned for this problem--I have done hundreds of them.
a) Once you get the remote apart (the hard part) the rubber mat should lift freely off of the circuit board--if you peel it off and feel resistance---you will see whatever residue of what was spilled and got under it--gets between the board and the bottom of the mat.
b) The surface of the board where the lines are can be cleaned with denatured alcohol.
c) To clean the mat, remove it completely and with a small toothbrush and dishsoap gently rinse it and clean all the residue off the bottom. Dry it with compressed air and or a hair dryer set for cool only. When it is completely clean and DRY put it back into the face of the Remote. If there was a spill you may also find residue in the openings where the buttons on the mat protrude to the front of the remote--a good idea when it is apart to clean that and dry it also.
d) Put the remote back together and see if it now works---
Your second choice is to borrow another remote for the same kind of unit and see if it works normally---if it does and cleaning does not fix the problem--YOU WILL NEED TO buy a remote to replace the bad one.
If a known good remote does not work, it is possible the problem is in the unit and not the remote--NOT VERY LIKELY but it can happen.
Posted on Feb 02, 2010
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Posted on Jan 02, 2017
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