I had taken my alternator apart and tested some of its electronic components. It was only putting out around 10.5V and was not charging my battery. The diode pack (rectifier) is working and the only other component left is the voltage regulator. I wouldn't resist and removed the potting compound. For those who are interested here is a picture of its component. There are only 4 active components on that circuit. The 2N6388, a darlington transistor, a surface mount transistor, diode and 6V zener diode.
http://www.ece.concordia.ca/~dave/carpics/regulator.jpg To test these components I had to desolder from the board and one of the legs from the darlington transistor just came off. I think the regulator never worked properly from day one. Here is a picture of the transistor and broken leg. http://www.ece.concordia.ca/~dave/carpics/bad-pin.jpg Looks like I'll have to change the regulator or atleast the transistor. Thanks to those who have replied PS: Someone here happens to have an openned VW voltage regulator and it uses the same transistor and the circuit looks very similar. Dave |\ | | | _______________________________________/\ /\ /\_____| \|_____| |____________ Dave Chu \/ \/ | /| | | Dept. of Elec. & Comp. Eng. |/ | | | Concordia University Voice:(514)848-3115 Fax:(514)848-2802 1455 de Maisonneuve W. H961 Email:[EMAIL PROTECTED] Montreal, Quebec, Canada H3G 1M8 http://www.ece.concordia.ca/~dave/addr.html ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /// [EMAIL PROTECTED] mailing list /// Send admin requests to [EMAIL PROTECTED] /// or try http://www.team.net/cgi-bin/majorcool /// Archives at http://www.team.net/archive /// Send list postings to [EMAIL PROTECTED] /// Edit your replies! If they include this trailer, they will NOT be sent.
