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Zero Voltage from EQT Output

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=3252
Printed Date: January 17, 2026 at 2:46 AM


Topic: Zero Voltage from EQT Output

Posted By: Velocity Motors
Subject: Zero Voltage from EQT Output
Date Posted: September 01, 2002 at 8:01 PM

Have two EQT's that have " 0 " voltage on the output RCA. Everything seems to be fine except that there's no output signal. I have one that has an output signal of about 1.6V and it works properly. Any ideas on what is wrong with the internal workings of the EQT's ??



-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA



Replies:

Posted By: dirtdr
Date Posted: September 02, 2002 at 9:04 PM
Is the PFM modules installed inside... even if not using the subsonic block, there must be a module installed... if it is there, check to see if it is pushed in all the way



Posted By: crroush
Date Posted: September 02, 2002 at 9:34 PM

I have seen the gain POT burn out and be set to "off", thus giving no out put voltage.

Another way to go is to open it up and trace the signal through the system from input to out put and see what component may be causing you trouble, like if an inline diode/transistor or whatever is bad.  It is a tedius process though, but I have repaired CD players and cellular phones that had oddball parts bad this way.

good luck!

Craig




Posted By: Velocity Motors
Date Posted: September 02, 2002 at 10:18 PM

Thanks for the suggestions. I will try and trace the problems and check the PFM modules to ensure they are fully connected.



-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA



Posted By: crroush
Date Posted: September 03, 2002 at 11:30 AM
posted_imagedid you fix it Jeff?
Craig


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