Tachometer electronics help... - Electronic Circuits Projects Diagrams Free

Sotech · 21st August 2008, 10:40 PM

Hello I'm new to the forum and I am really hoping that you can help me. I've asked this question on another site and was unable to get any kind of help. I have a tachometer that I am trying to repair but it is a little different that other types of tachometers. It doesn't take the normal +12v/Gnd/Signal. I've heard these boat tachometers work a little different than vehicle tachometers. If there is any information that you can give me I would greatly appreciate it. Here is a link to some photos of the tach.

http://www.flickr.com/photos/2016610...7606877440549/

Thank you for help in advance. I really can use any help that you can give.

Boncuk · 22nd August 2008, 10:45 AM

Sorry, bad link.

Boncuk

rezer · 22nd August 2008, 12:24 PM

Yep, bad link here to. First what is the mfg/model number of the tach that you have?

Sotech · 22nd August 2008, 03:00 PM

I edited the link above. It should work now. Thanks to the both of you for responding even though my link was bad. I was looking at the circuit board this morning and there are 3 actual inputs BUT only two are fuctional. If you see the picture there are three prongs I guess you can call them but two prongs actually are connected to the circuit. I don't think the tachometer is being grounded by the case like some older electronics are. So I don't think this tach uses the normal 12v/GNd/Sig. I spoke to the guy who asked me to look at this and he told me it only uses signal and ground. *shrug* I've never seen anything like that before. As far the mauf. of the tach it say: Sun Electric Corp. Chicago, ILL. I hope someone can give me some insight I'm completely stumped.
Thanks again!

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21st August 2008, 10:40 PM	(permalink)
Sotech	Tachometer electronics help... Hello I'm new to the forum and I am really hoping that you can help me. I've asked this question on another site and was unable to get any kind of help. I have a tachometer that I am trying to repair but it is a little different that other types of tachometers. It doesn't take the normal +12v/Gnd/Signal. I've heard these boat tachometers work a little different than vehicle tachometers. If there is any information that you can give me I would greatly appreciate it. Here is a link to some photos of the tach. http://www.flickr.com/photos/2016610...7606877440549/ Thank you for help in advance. I really can use any help that you can give. Last edited by Sotech; 22nd August 2008 at 02:51 PM. Reason: I had a bad link before. This link should work sorry

22nd August 2008, 10:45 AM	(permalink)
Boncuk	Sorry, bad link. Boncuk __________________ Proper Planning Prevents Piss Poor Performance

22nd August 2008, 12:24 PM	(permalink)
rezer	Yep, bad link here to. First what is the mfg/model number of the tach that you have? __________________ "Remember, you're special.....just like everyone else."

22nd August 2008, 03:00 PM	(permalink)
Sotech	I edited the link above. It should work now. Thanks to the both of you for responding even though my link was bad. I was looking at the circuit board this morning and there are 3 actual inputs BUT only two are fuctional. If you see the picture there are three prongs I guess you can call them but two prongs actually are connected to the circuit. I don't think the tachometer is being grounded by the case like some older electronics are. So I don't think this tach uses the normal 12v/GNd/Sig. I spoke to the guy who asked me to look at this and he told me it only uses signal and ground. shrug I've never seen anything like that before. As far the mauf. of the tach it say: Sun Electric Corp. Chicago, ILL. I hope someone can give me some insight I'm completely stumped. Thanks again!