Question about Emerson EWC19T3 19 in. TV/VCR/DVD Combo
The back of the rubber keys are coated with a conductive paint.
When you press a key, the key shorts out two gold-plated contacts (printed circuit board tracks) on the remote printed circuit board.
Over time, these keys get coated with a film of dirt or dust preventing the keys from making good electrical contact with the printed circuit board. The conductive coatng can also wear off making the buttons unusable.
The reason why some keys work and others don't is because the keys that you use the most like volume, channel and Up/Down are the keys that suffer the greatest wear, thereby failing first.
You have a couple options. You can take the remote apart and using a cottom swab, dip it in 100% alcohol and lightly, without rubbing, just swab all of the back of the rubber keys and allow to dry. Now take another swab and dip it in the alcohol and rub the gold contacts until they are nice and shiny. Allow it to dry. If possible, you can lay the rubber keypad over the gold contacts without putting everything back together and see if the switches work now. If they do, you can put the remote back together.
If not, the conductive coating is worn off and you need to buy a bottle of conductive paint. Try this link to purchase the paint.
Please let me know if I can be of further assistance to you.
Posted on Feb 21, 2008
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Posted on Jan 02, 2017
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