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Changes between Version 15 and Version 16 of ReverseEngineering

v15	v16
13	13	After spending several hours the main schematics of those button boards has been decoded. Here is an image, I've created with EAGLE, showing how those both PCB works.
14	14	All the status LEDs resistors are 80Ohm, so I assume they were driven originally with around 3,3V. The background LEDs seems to be driven with 12V pwm modulated signal, however not sure for now. On the E39-forum.de somebody found out the manufacturer of compatible rotating knobs for the 4:3 monitor. I think for
15		the 16:9 it could be the same. The original knobs where a special development for Alpina. The compatible one is that one: Grayhill 61C22-01-04-02, [http://datasheet.octopart.com/61C22-01-04-02-Grayhill-datasheet-67218.pdf data sheet].
	15	the 16:9 it could be the same. The original knobs where a special development for Alpina. The compatible one is that one: Grayhill 61C22-01-04-02, [http://datasheet.octopart.com/61C22-01-04-02-Grayhill-datasheet-67218.pdf data sheet]. Please visit the [wiki:/openbm/Encoders Encoder] page for more information about used encoders.
16	16
17	17	'''Note''': The both encoders showed on the image, do not show the original connecting, but the way, how I changed it in order to easy access them with an uC. So recheck this first, if you like to build same thing!!!