electrical whine not fixed by grounding?

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i am an idiot

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This member consistently provides reliable information

Joined: September 21, 2006

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Posted: April 11, 2012 at 11:28 AM / IP Logged

You can ALWAYS count on Tommy to notice the words with all caps.

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dakotap

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Joined: March 21, 2012

Location: Louisiana, United States

Posted: April 11, 2012 at 1:04 PM / IP Logged

Just got to the amp and turned the gain all the way down. It stopped the whining. Turn it back up and the whining starts all over again. What's this mean?

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jaz1068

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Joined: April 07, 2012

Location: Georgia, United States

Posted: April 11, 2012 at 2:43 PM / IP Logged

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&ved=0CE4QFjAE&url=http%3A%2F%2Fassets.fluke.com%2Fappnotes%2Fautomotive%2Fbeatbook.pdf&ei=8t2FT-jMDKKC2AWpsoCRCQ&usg=AFQjCNEgDdR5z_DGZWTe3GaqqKvHivT4xQ&sig2=fBp6i4wKF4IKc5KBqfGW8g

Here's a nice write up on checking for a bad alternator.

Hope this helps

Jaz

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i am an idiot

Platinum - Posts: 13,670

Joined: September 21, 2006

Location: Louisiana, United States

Posted: April 11, 2012 at 6:33 PM / IP Logged

That means that the gain is working just as it is supposed to. With the gains all the way down, can you reach your desired listening level?

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dakotap

Member - Posts: 7

Joined: March 21, 2012

Location: Louisiana, United States

Posted: April 11, 2012 at 8:21 PM / IP Logged

No, with the gains turned down you can barely hear the speakers at all.

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i am an idiot

Platinum - Posts: 13,670

Joined: September 21, 2006

Location: Louisiana, United States

Posted: April 12, 2012 at 8:10 PM / IP Logged

Turn the gains up, when you begin to hear the noise, back them off till it goes away. Now can you reach your desired listening level?

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tommy...

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Posted: April 16, 2012 at 11:47 AM / IP Logged

i am an idiot wrote:

You can ALWAYS count on Tommy to notice the words with all caps.

Thats what im here for... I Think...

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Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

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electrical whine not fixed by grounding?

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