new problem with my HU :(

by snappy
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so yesterday while turning on my car i noticed that my back speakers the 6.5 were making a buzzing noise that was real annoying so i took em out to make sure that they were wired right and they were so i turned on my HU again and it still kept making the buzzing noise and i turned it up loud and my HU turned off i dont know why

does any one know whats causing that noise?


Replies (1)
swez on 08/26/2008 03:25:12
It might be a good idea to remove the HU and bench test it off a 12 volt car battery as your power supply. This will tell you if the HU has internal problems in the rear channels or if there is a poor ground issues in the system.

You'll need a few known good test speakers and use the CD as a source. (AM/FM will not work w/o antenna)

FYI: My guess is there are a few power supply filter issues inside the HU that have gone bad. Low voltage to these circuits can fry declicate parts, preamps and output drivers. Is the HU still under warrantee?

Swez




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