Dashboard LED's

[TVRwhoa]

I'm removing all of the LED's lights from the back of the dashboard so I can send it off to be restored as the veneer is all cracked.

However the ICE warning LED was superglued in and so won't come out of the housing in the end I've had to cut it off - it looks like this LED has three wires in it and then the other one which is the MAIN beam light has two wires.

Can anyone point me in the right direction so I can order these LED's back in please.

Just for my education why does the ICE have three wires?

Edited by TVRwhoa on Sunday 3rd March 15:38

[ianwayne]

It's a 3 colour diode the ice warning: Red, orange and green. Here's the bit from the manual:



That said, on my car it seems to be red when really cold and nothing else at all at any time. It does flash through all 3 colours on ignition on but orange and green never come on.

[FarmyardPants]

Mine goes green first, then orange, red and if it's really cold, blue. (2000/W 4.5)

[wurgle]

Apologies if teaching to suck eggs here.

If it has 3 wires then it is most likely two LEDs in one package which are red and green.

If you switch both the green and red on at the same time that makes orange/yellow depending on the exact current, efficiency of the diodes etc.

What you need to find out I guess is if the LED is common anode or common cathode

This one is common cathode i.e. the negative end of the LED is most likely connected to 0V ground and a positive voltage is supplied to the red and or green anodes

https://uk.rs-online.com/web/p/visible-leds/228576...

This one is common anode

https://docs-emea.rs-online.com/webdocs/1384/09007...

where a positive voltage is supplied to the anode and the cathodes are pulled down to 0V ground to switch the red and or green on.

No idea which way TVR did it.

Can you access the legs in the stump of the LED you cut off? If so use the diode test on a multimeter to work out if you have a common black (cathode) or common red (anode).