Question about MTX Thunder 4250D Car Audio Amplifier

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When i turn on my car my amp wont turn on?!

I just bought brand new 2 12 inch jack hammers and when i put them in it worked fine for the whole day then i turned my car off to go in a store and i came back in and my subs weren't playing?! thats when i noticed that my amp light wasnt comming on?!

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  • 1,498 Answers

Start with the basics:

  • Check the amp's on board fuse.
  • Check the in-line fuse for the amp's power supply.
If you have a meter:
  • Check the voltage at the +12v connect on the amp's power terminal
  • With the system on (or as on as it can be), check for voltage at the 'Remote' connect on the amp's power terminal - Is it +12v? If not,
  • Check the ground using the continuity or resistance option
If you have voltage to the +12v connect, try jumping it to the 'Remote' connect. It should light up.

If it doesn't, the problem is in the amp and a bit more difficult to track. Let me know if we need to take this to the next level.

Hope this helps,

Mike


Posted on Jul 15, 2008

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