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RF Punch 301M Amp Not Working...

Old Aug 28, 2003 | 09:57 PM
  #1  
amorak's Avatar
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Hey guys,

My cousin just had his '00 Jeep TJ wired for a Rockford Punch 301M amp here in Calgay at Visions. Along with the amp wiring he had a JVC KD-LH1150 deck installed.

Now, here's the problem. He plugged all the wires into the amp, and then plugged his Kicker c10 competition sub into it, and turned it on and got base. However, he said he fiddled with the deck settings and the sub stopped working... He came over tonight, and I looked at it, and I just can't see what's up..Here are my observations:

- The JVC KD-LH1150 deck has no option to turn on the pre-amps - It seems to recognize automatically if there are rca's plugged in or not. It is showing that yes, there are rca's plugged it, giving me access to the sub volume/crossover menu.

- The amp is lighting up, and only when the deck is on, as it should be. When there is no rca's plugged in, but the power/ground and remote are, it does not light up, but with just one RCA plugged in, it does light up - Should it not require both to be plugged in to complete the circuit to power it on??


Does anyone have any ideas? Is there any way that there is a setting on the deck that is preventing the amp from getting a signal? That's what I thought when my cousin told me he'd been messing with the deck settings, but after scouring the manual, it seems it's automatic for pre-out recognition or not, so it falls to the amp or rca's...

What confuses me in this area is how the amp light comes on when just one rca is plugged in! As I said above, shouldn't both need to be plugged in (and therefor completeing the circuit), before we get the amp light?

If the amp had fried, would the light in the amp or the inline fuse not have blown, or the light not turn on?

Some help would be very appreciated!

Jared

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Old Aug 29, 2003 | 04:12 AM
  #2  
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I don't believe you should need any rca's plugged in to get the power LED on, sounds to me like there is something internally wrong with the amp. I would also be inclined to double check the wiring, even though you had someone do it for you. Good luck.
Old Aug 30, 2003 | 05:57 PM
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Agreed.. take it back, If the install was done recently, then I'm sure they won't give you a hard time.
Old Aug 31, 2003 | 05:26 AM
  #5  
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Probably not fried, just a grounding problem with one RCA. An amp would normally play even with just one RCA in.

Either the amp has one bad RCA input, whether ground or whatnot, the cable is bad, or the deck RCA you're using is bad.

Try swapping RCA's? [img]graemlins/dunno.gif[/img]
Otherwise, bring it in. There could be something minorly wrong with the amp. But if only something happened to the amp just now, then there could be something else along the line between the deck and the amp input to make it do this.
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