Key Fob!!

[The MoffMeister]

Hey guys went and dropped my key fob and one of the chips has come off, so i've done a blue peter job on it put it back in place with the old trusty electrical insulation tape, and all works well, just wondered though i presume it would be ok to solder it back in place???

 

[Triple D]

oh dear rob, not been a good year for your car this year has it matey? hope next year is better for you

 

[The MoffMeister]

as usual a useful comment there!

 

[tris]

thats spanny LOL

 

[Triple D]

aww come on guys, i was trying to be nice. wheres the christmas love from you all?

 

[The MoffMeister]

Anyone? or better getting a new one??

 

[tris]

aww come on guys, i was trying to be nice. wheres the christmas love from you all?

christmas love
we are not all like smooth

 

[Triple D]

christmas love
we are not all like smooth

i know, smooths my lickle man

 

[tris]

thats just wrong

 

[Syphon]

On topic please peeps.

Stretch - I'm no electrician, but I'd imagine if you're adept enough with a soldering iron (I'm not) you should be ok.

Don't hold me responsible though.

Scott

 

[The MoffMeister]

ok cheers scott i am a sparky but had to remember if i need a low temp solder iron etc?? and if it would be ok, but yes will hold you responsible if it goes wrong haha

 

[Muttley]

If it was soldered on in the first place it should not be able to come off just from being dropped. Which chip is it, and where does it fit? Just taping it back on will not give reliable electrical contact, so if things are working fine, maybe it doesn't need to be soldered at all?

If it's the immobiliser chip then it's completely separate from the alarm bits and needs no electrical contact, it's a passive transponder.

For PCB work, a temperature-controlled iron and don't leave it in contact too long.

 

[The MoffMeister]

yeah as you look at the fob its the one nearest the blade on the fob, was thinking low temp just to make sure without it the light on the fob doesnt light up and car wont open so have to do it manually!! will look on sleaze bay for new flip fob!!

 

[Muttley]

New fobs are expensive.

If the fob doesn't light up then the chip is definitely part of the remote-control circuit. If it is obvious where it came from then you should be able to solder it back on if you're careful. Small iron, just hot enough to melt the solder and if you can get a pair of tweezers or something to act as a heatsink onto the bug's legs then it will help. Use just enough heat to make a good joint. Let the board cool before you do the next leg, to help avoid overheating the components on the board.

Sounds like it wasn't soldered on very well to start with.