Speedo SMD conversion. How hard?

[Lashed]

I've currently got the blue led's and want to change them to white.

Considering that I'm a novice at best when it comes to soldering and electrics (I can wire a plug ), how hard on a scale of 1 to 10 (1 being "can do it blind folded with one arm behind your back") is it to do?

Am always up for trying something new, just don't want to break my dials!

[Gairo]

Considering you're a novice then i'm going to say 7+ mate, its fiddly, its a pain in the arse and theres a possibility that you could knacker up the circuit board with excessive heat...

[Lashed]

Ah, well the blue does look nice!

[M_Blue]

Pecky has a tutorial on his diagnostics.org.uk site,it shows how to dismantle clocks and which ones to change.

http://www.diagnostics.org.uk/2010/0...rument-clocks/

My mate done mine from a similar tutorial but tbh unless you have a steady hand ,some soldering experience and can determine which is the + and - end of the SMD i'd give it a miss.

[lh_4827]

i did the ones on my signum in a few hours, but i started by doing all the door switches and heater controls first to get to grips with it all. i was a total novice at soldering, and grabbed a gas soldering iron and got on with it. used it as a learning curve. if you have a multimeter, it might have a setting to determine the polarity of each SMD, making it easier to match up..

[thunderpantz]

i did the ones on my signum in a few hours, but i started by doing all the door switches and heater controls first to get to grips with it all. i was a total novice at soldering, and grabbed a gas soldering iron and got on with it. used it as a learning curve. if you have a multimeter, it might have a setting to determine the polarity of each SMD, making it easier to match up..

Or just mark the negative side of the SMD

[lh_4827]

well yes, thats what i did after testing them all first to figure it out, then matched up the notch on them..

[thunderpantz]

The notch or the green 'tab' is -

[Gairo]

Theres a triangular shape cut out of the end of a PLCC2 which helps to distiniguish positive from negative...