as I understood the LED's either work or dont work mattering on voltage...interesting project tho!
I was repairing a bunch of LED lamps for a Boy Scout camp and figure that I was tired of burnt out OBC bulbs, so I took apart some old bulbs and sockets and fit a reisiter and LED to it.
Had to fiddle with the installation to get the polarity right, but they work.
The only thing I'm not sure of is the dimming function...I think the voltage drop is too little for the LEDs.
Vee ave vays of dealing vid your kind...........
as I understood the LED's either work or dont work mattering on voltage...interesting project tho!
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
no... they dim as less current flows through
The heater control/slider knobs are lit with LEDs and they dim. The dash light dimmer uses a PWM controller to change the duty cycle of the LED, dimming it and the incandescent lamps on the circuit:Originally Posted by 632 Regal
Datasheet for the PWM controller:
http://us.st.com/stonline/books/pdf/docs/1408.pdf
SMT components including the L9610C PWM controller:
Power MOS transistor inside heatsink. Note the dimmer's icon is lit with an LED:
Anthony
03/64 production
'91M5 - 11/90, was mine, it's Jim's now.
Took the car out & wife too, for a night on the town, and checked out how the LEDs looked.
They do dim down, not instantly, but gradually.
They seem to work well for the LCD backlight, but the function buttons are not well lit. do to the narrow beam from the LED.
I guess I'll be using a bulb for the bottom and LEds for the sides.
Vee ave vays of dealing vid your kind...........
Javier
One way to get a more diffused light pattern from LEDs is to roughen up the exterior. When I installed LEDs in my sunroof and A/M switches, I actually shaved the LEDs at specific angles. That seems to have worked quite well for directing the light in the proper places. Hope this helps.
whats the procedure for removing the obc to get to the globes, what globes do you need. i want to do it all at once, not pull it appart, find i cant get the globes and have to put it back together to pull it apart againg when i get the globes.
1994 540i Auto
live fast; die sideways
13.3 @ 104mph (not in the 540)
15.4 @ 150 Kph in the 540 (24/9/07)
let me save evry 1 the hassle, RTFM. for removal. dosent say what spec the globes are....
1994 540i Auto
live fast; die sideways
13.3 @ 104mph (not in the 540)
15.4 @ 150 Kph in the 540 (24/9/07)
BMW part nos of original bulbs:
64 11 1 382 790 Bulb "Rot"
64 11 1 388 253 Bulb "Weiss"
But I do not know the Watt.
How to disassemble
http://bmwe32.masscom.net/johan//IHK...KA_lights.html
That is now for the IHKA bulbs.