22-03-2009, 02:13 AM
Do you have a multimeter?
![[Image: fluke289.jpg]](http://www.17360.cn/Shop/UploadPhotos/200707/fluke289.jpg)
use the diode mode to know the +/- (pls also ref http://www.sciencelobby.com/components/diode.html )
For the +/- onboard, see here:
![[Image: ng4pyb.jpg]](http://s5.tinypic.com/ng4pyb.jpg)
Rgds,
![[Image: fluke289.jpg]](http://www.17360.cn/Shop/UploadPhotos/200707/fluke289.jpg)
use the diode mode to know the +/- (pls also ref http://www.sciencelobby.com/components/diode.html )
For the +/- onboard, see here:
![[Image: ng4pyb.jpg]](http://s5.tinypic.com/ng4pyb.jpg)
Rgds,
(21-03-2009, 07:57 PM)0n3.m4n.4rmy Wrote: Did the resistor effect how bright the led was ? Did you just add any led to the board or the factory type also is there a (+ & -) on the led . Thanks for any advice.[/quote]
quote='cushion' pid='595' dateline='1237436689']
for me, I changed the sync (online) LED to other color so that I can find out the status quickly.
I did not measure the size, just welding on and it lights.
If you would like the LED to have longer life; just adjust the resistor and measure the Ampère lower than 30mA(for most ø3mm and ø5mm LEDs) is fine. lower Ampère ; longer the life of your replaced LED.