I have a problem with my Alpine MRD-M500.

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=27637
Printed Date: January 21, 2026 at 10:21 AM

Topic: I have a problem with my Alpine MRD-M500.

Posted By: projzxr
Subject: I have a problem with my Alpine MRD-M500.
Date Posted: March 03, 2004 at 12:25 AM

I remember when I installed it last it was working. There was sound coming out of it. But then I come back and turn on my system the amp does not work any more. I had my system installed professionally. But the mrd...I installed myself. What I have is two mrv-t420 just runnin to the speakers and stuff. I was thinking maybe the power effected the rca's? What they told me at the place where I got the rest of my stuff installed was that the mrd amp was not sending any sound to my eq. They tried different rca cables and stuff but no luck . So I think that the rca jack is not working right.....I was wondering if it was something I would be able to fix myself because I have no more warranty on the amp. Sorry about the length....Thanks.

Replies:

Posted By: DYohn
Date Posted: March 03, 2004 at 11:27 AM

The amp is not sending a signal to your EQ? Nah, whoever told you that doesn't know what they're talking about. Post a list of all the equipment in your system and how you have everything connected.

Posted By: Alpine Guy
Date Posted: March 03, 2004 at 11:51 AM

go to mode 9 on the amp and change it to "off" Mode 9 should be your safe mode. The amp will turn on and everything, but it will not work. Its a safety feature. Check it out.