Showing posts with label remote dis-assembly. Show all posts
Showing posts with label remote dis-assembly. Show all posts

Friday, October 28, 2011

How to repair a Remote Control?

You can check out this details if you notice problem with your remote controls operation,.
When you have a remote control that is not working properly---works but 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 to cause problems.
The way all infrared remotes work is there is a circuit board inside with black carbon lines etched on it---this includes lines for each function the remote has.

The buttons on the outside of the remote are actually one large rubber like mat and on the bottom side are coated black buttons---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 controls.
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 have to peel it off and feel resistance you will see whatever residue of what was spilled and got under it; it gets between the mat and the circuit board.

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 dish soap gently wash it in the sink with warm water. Then dry it with compressed air or a hairdryer set to air only. When it is COMPLETELY dry put it back into the face of the remote.

d) If there was a spill into the remote it is also a good idea to clean the face of the remote where the buttons protrude and dry it completely before you put the mat back.

e) Put the remote back together and see if it now works.

Your second option is to borrow another remote for the same kind of unit and see it works normally--if it does and cleaning does not fix the original remote--YOU WILL NEED to buy a new original remote for the unit.

I stay away from "Universal" remotes as many either will not work or be missing several features the original one had.

If a KNOWN good remote does not work it is possible but very unlikely that the problem is in the unit the remote conrols.

See attached photo of a typical remote taken apart--note the lines on the board and the bottom of the buttons on the keypad.

Neverclean the bottom of the buttons with anything except soap and water .As any chemicals can damage the black conductive coating on the bottom of each button--it will not hurt the lines on the circuit board!





This above mentioned details should help you make your remote work again or know your remote control better.



Details regarding Remote controls?

Read this details before buying or getting your remote control repaired.

1. If you are buying a UNIVERSAL remote for some reason do not expect it to provide all the original functions or EVEN TO WORK FOR YOUR UNIT. You in most cases are better with the original---if the original does not work there are ways to deal with that.

A dead remote is usually bad batteries, dirty or loose connections or has had some liquid spilled into it.

Most remotes can be taken apart (if its dead nothing to lose here) and the circuit board cleaned with alcohol etc and the rubber like keypad washed with dish soap, dried completely and the unit usually works again.

2. NEVER STORE REMOTES WITH THE BATTERIES IN THEM FOR PROLONGED PERIODS OF TIME; the batteries can leak and a white mess similar to battery cables in a car occurs. This can be dealt with by cleaning all the white stuff out and cleaning the metal contacts by use of a small file or knife----DO NOT USE WATER etc for cleaning here.

3. Most shops have a remote tester, it is a card with a strip and when the remote is pointed at it the strip lights up (3 dollar item on the internet).

4. Lost remotes for many units are a problem----some never think to GOOGLE THE MODEL NUMBER OF THE SET with the word REMOTE after it---AVOID UNIVERSALS. Many units (TV combos, DVD, blue ray etc) MUST HAVE THE ORIGINAL REMOTE for all functions to be accessed.

5. Three things for the most part cause remotes not to work: DROPPED, LIQUID SPILLED, AND BATTERY ISSUES.

Dropped is most likely to be fatal if the board inside is damaged, the other two are fixable 95% of the time.

This details will help you to understand your remote control better.