Instructables

Repair a key dob with conductive ink

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Picture of Repair a key dob with conductive ink
 
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Step 1: What you need

Picture of What you need
1 The fob to repair 2 a coin to open the fob 3 conductive ink

Step 2: Open the fob

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Use your penny to pop open the fob. Mine has a slot made just for it. Insert the penny and twist.

Step 3: Inside the fob

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Inside the fob you will find a small circuit board, a rubber button cover with small conductive pads, and a coin sized battery. Inspect each of these for corrosion.

Step 4: A word about conductive ink

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This is conductive ink. It's a simple easy way to make a connection for circuits. It's easy to find on the Internet.

Step 5: Prep the ink

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remove the cap, unscrew the nozzle and remove the inner cap. The inner cap is easy to miss. Hopefully this saves someone some frustration.

Step 6: Conductive pads

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Find the conductive pads on the rubber cover. if they have rubbed off, use the conductive ink to repair the pad. Use just a little ink. I used too much the first time and had to clean it off and reapply. You just need enough to make a good contact.

Step 7: Image of repair

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This is an image of the repair. Be sure to let the junk thoroughly dry. The jnk is not conductive until it is dry. You can speed up dry time with a hair dryer.

Step 8: Inspect and reassemble

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Inspect the contact pads and reassemble. You should have a working remote again. Note this remedy does not fix all broken remotes but if your contact pads were the issue you are golden. Note to the wise. Replace the battery with a fresh one while you are in here.
cplongoria2 months ago

Great idea, thanks

Kirkthepyro2 months ago

look at the title "Repair a key dob with conductive ink" I beleive you mean fob not dob. otherwise, great 'ible.

gfetters (author) 1 year ago
The cost is $9.95
gfetters (author) 1 year ago
Sparkfun has it. http://www.sparkfun.com/products/11521
stubbsonic1 year ago
Thanks. I'm going to use this on my Universal Remote, as some buttons don't work and some require a great deal of grinding force.
bfarm1 year ago
I fixed a couple of hard to replace remotes this way using conductive paint from the auto supply store. The paint was made to repair rear window defoggers but was way expensive, $16.00 for a tiny vial. How much was the product you used? Source?