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[prj]

Keyfob stopped working.
I looked inside and noticed that there is probably a small SMD resistor missing.

Since I only have one such keyfob atm, could someone open up theirs and measure the resistor? Or at least take a picture?

Here is the picture:


I circled the bit which I think is missing. Someone has repaired this thing before (the power supply connection), perhaps due to that the component came loose. Without that component there is no positive supply going to the board, so it can't work.

I don't want to just bridge the gap, because that might mess stuff up. Looks perfect for a 0603 resistor.

Even if what I wrote seems like chinese to you, but you are comfortable with replacing the battery in your keyfob, please open it, push the board out (press a button from the opposite side when open) and check if you have a bit in that red circle. If you do, please give the numbers off it...

Thank you.

[TheBoy]

Mine is different, sorry.

However, from photo, doesn't look like a missing component, as there would be signs of solder fatigue

[prj]

Yea you were right.
There was Vcc on the other side as well.

It was the battery holder that was repaired badly before and the other leg had developed a crack as well.

I removed both legs and used some wire and lots of good old fashioned 60/40 solder, which should be more elastic than whatever the legs are made of.

Works fine now.

[Martin_1962]

That is missing as there is no LED, you will need new switches soon, those are getting tired.

Noticed this with a lot, they removed the LED and associated components, but if you could put them on the LED would work.

[prj]

Yeah, mine does not have LEDS indeed.
Do you happen to know the part numbers for the switches/battery holder? Could try to see if Farnell has anything in stock.

[Osprey]

Martin Imber repairs these key fobs for OOF members - hence his knowledge of them shown in his reply above.  He no doubt has a plentiful supply of parts.  Drop him a PM and I'm sure he will give you a very reasonable quote. 

He did a great job on mine, and it was certainly cheaper and less hassle than sourcing parts myself. 
 

[Martin_1962]

I can sell switches, less than buying a load from RS

Battey holders - I use brass wire to make new pins