SC300 volume/ temp knob LED DIY
#1
Driver
Thread Starter
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
This was being discussed in another thread last night, so I decided to have a look today. They are illuminated by some very dim incandescent bulbs with green covers. I decided to make my own since I had the LEDs and resistors laying around. I used standard 3mm LEDs, which have a very narrow beam pattern, however they go up into a prism, reflector arrangement, so the light gets pretty evenly distributed.
I just wrapped the legs of the LED and the resistor around the base just like they originally were. The Legs of the LED are pretty thick, I ground them down with a dremel, they wouldn't install with the thick legs, they wouldn't go down far enough to turn to lock.
![](http://home.insightbb.com/~austinmini/ledtemp1.jpg)
![](http://home.insightbb.com/~austinmini/ledtemp2.jpg)
![](http://home.insightbb.com/~austinmini/ledtemp3.jpg)
After I turned them to lock them in place, I just bent the resistors down and out of the way so the rear cover would snap back on, they look good, and they were free![Smilie](https://www.clublexus.com/forums/images/smilies/smile.gif)
I just wrapped the legs of the LED and the resistor around the base just like they originally were. The Legs of the LED are pretty thick, I ground them down with a dremel, they wouldn't install with the thick legs, they wouldn't go down far enough to turn to lock.
![](http://home.insightbb.com/~austinmini/ledtemp1.jpg)
![](http://home.insightbb.com/~austinmini/ledtemp2.jpg)
![](http://home.insightbb.com/~austinmini/ledtemp3.jpg)
After I turned them to lock them in place, I just bent the resistors down and out of the way so the rear cover would snap back on, they look good, and they were free
![Smilie](https://www.clublexus.com/forums/images/smilies/smile.gif)
![](http://home.insightbb.com/~austinmini/ledtemp4.jpg)
#3
Driver
Thread Starter
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I didn't handle the circuit board too much, but I did notice the bulb sockets were discolored and seemed brittle (from heat). just in the few minutes to take pics, the "green side" got warm to the touch, and of course the blue side stayed cool... dontcha just love LEDs?
![Smilie](https://www.clublexus.com/forums/images/smilies/smile.gif)
#5
Driver
Thread Starter
#9
Driver
Join Date: Sep 2007
Location: Vancouver, British Columbia
Posts: 116
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Is there soldering involved in this mod? If not seems like a simple enough DIY. ebay 3mm led w/ resistor for 12v should be right i'd presume. Wished it was cheaper since we'd only need like 2 maybe 1 red for the hazard if there is a light.
#10
Driver
Thread Starter
#13
Driver
iTrader: (1)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I need help with my temp/volume control leds. For some reason the Temp leds do not light, even when I installed new leds...the volume **** does backlight but the temp **** does not. Any ideas? Can the board actually blow out or could it be a bad wire, if so which wire behind the temp control **** controls the lighting of the leds?
#14
Driver
Thread Starter
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Did they all work before? Did you make them yourself or use store bought replacements?, did you solder the resistor to the wrong leg of the LED? did you swap them around (do they work in other locations?) did you hook them right to a battery to check the LED outside of the switch housing? Did you just swap the LED 180 degrees to change the polarity? I don't remember which wire it is, but you can follow the trace on the circuit board or if you can't see it, use an ohm meter on the exposed contacts where the bulb goes and touch each pin in the connecter till you find two that go right to the bulb sockets.
Last edited by BBriBro; 04-01-09 at 01:33 AM.
#15
Keeper of the light
![](https://www.clublexus.com/forums/images/ranks/rank-mod2.gif)
iTrader: (17)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I need help with my temp/volume control leds. For some reason the Temp leds do not light, even when I installed new leds...the volume **** does backlight but the temp **** does not. Any ideas? Can the board actually blow out or could it be a bad wire, if so which wire behind the temp control **** controls the lighting of the leds?
![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)