I ordered this to repair a Marantz RC-200MKII remote. The remote had several keys that quit working. i had to push really hard to make them work. I tried using a circuitwriter pen but the material did not stick to the rubber very well. I did some research and found this on amazon. Decided to give it a try.
I got it in today and read the directions. I took my remote apart and started repairing the keypad. On this remote, the rubber keypad can actually be taken out completely, making the repair much easier. what i did was use pure acetone to clean the back of the keys thoroughly. i first tested the acetone on a torn keypad to make sure acetone wouldn't destroy the rubber. i then placed a table lamp in front of me and slightly to the right of where i was working on the keypad. When i cleaned each key with acetone, i could tell it was clean by holding the pad up to the light. you could tell the cleaned key was a dull grey. once i cleaned all the keys, i started applying the fix. i read in the directions to use a cotton swab but i thought doing that would be messy and possibly apply too much. so i was using the a single tipped cotton swab for cleaning so i used the other end of it to apply the fix. i guess a matchstick would work just as well. after applying the fix on each key i would hold the pad up to the light and you could easily tell where the liquid coated the key. any areas that were missed were easy to see with the light.
The instructions say the product will dry to the touch in two hours and wait overnight before putting the remote back in service. i couldn't wait so i let the keypad airdry for 30 mins and then placed it under the lamp for another hour. the heat from the lamp helped speed up the drying process.
i put the remote back together and it works great!!!! i was able to clean off the smudges where i missed but it come off very easy. if the remote stops working then i know it's my fault because i didn't wait the suggested time but for now i am totally pleased with this product. i have 3 more of the same remote that i need to repair. each has a key or two that quit working. now with this product i'll have 4 working remotes!! i recommend this product.
Oh yeah, i forgot to mention. i repaired this remote by using only the product that was on the lid!! By using the wooden tip of the swab, it was very easy to apply it and apply it correctly!!
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Dieser Artikel: Tastaturfixierung, Reinigung und Wiederherstellung der Leitfähigkeit des Kohlenstoffs auf den Tasten und den Kupfer-PC-Board-Pads
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It Worked!
Sony Bravia TV remote power button failed, volume button minimally responsive.On the bottom side of the "rubber" keys is a conductive coating that has to bridge across a part of the circuit board underneath, when the key is pushed it competes the circuit allowing the function to work (see photo).I did not have to dilute the Keypad fix but it does need to be mixed up well. The conductive material in the solution was clumped and lumped together; like old paint in a paint can. I used the small fine bladed screwdriver in the photo to break up and mix the clumps. It takes a couple of minutes but if the conductive material doesn't get distributed the fix isn't going to work. I used the same small screwdriver to apply the "fix".The bigger screwdriver is shown for perspectiveI did not have any Acetone on hand to prepare the surface for repair but I did have some auto brake clean which I sprayed on a Q-tip to clean with. Then I scraped the surface with the edge of a razor knife. The keypad is not rubber it is a silicone or Neoprene, the contact surface has to be clean or the "fix" may not stick. The razor knife didn't do much (visible) to rough it up, but thought it might help. Only clean key the surfaces to repair.As it dried the "fix" appeared to puddle and made it look like that the solution was pulling away but I believe it was just the solvent drying out leaving the conductive material behind. After a few more minutes, the repair looked pretty good.I let it dry overnight per the instructions, snapped the remote back together and it works! I took the remote back apart for the photos and no sign of the fix separating from the key surface. See the Photo for more details.
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Robin Heaver
