Blown resistors causing noise in amp?
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=71056
Printed Date: July 05, 2025 at 8:06 AM
Topic: Blown resistors causing noise in amp?
Posted By: fox_forma
Subject: Blown resistors causing noise in amp?
Date Posted: January 18, 2006 at 4:43 PM
I've been reading all over the boards and havent really came up with anything. I am new to this forum but not forums overall so i know how the SEARCH function works.
I have an Orion HCCA250, old school with the pop top. It hasnt been used in a very long time and personally i cant remember if it had any problems before it went into storage. When i power it up, just the +/- and remote it turns on like it should but there is a low squealing noise coming from the side near the outputs. I popped the case off and noticed that there are 3 different resistors that look bad, two are severly burnt while the third is partially. Could these resistors be the cause of the squeal or am i missing something else. Obviously the resistors need replaced but i wanted to know if that should be my main concern. I am running 4awg wire and it is grounded correctly as i checked with a multi meter to be sure.
Replies:
Posted By: electrostatic
Date Posted: January 18, 2006 at 7:32 PM
no. chokes (inductors) or transformer windings can produce mechanical noise in the form of a hum.
Posted By: fox_forma
Date Posted: January 18, 2006 at 7:57 PM
forgot to mention that the noise is on the output side, the transformers are all on the opposite end from the noise and the burnt resistors
Posted By: fox_forma
Date Posted: January 18, 2006 at 8:27 PM
i meant the RCA side is making the noise, sorry for the confusion
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