Question about MTX JackHammer JH1200 Car Amp

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I just hooked up my amp and terminal light keeps flashing on and off. i tried bypassing my cap but still does not work.

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The ovens in the rangemaster will not work as the timer is not working. The timer will not flash and when it does decide to flash it goes right back to non flashing zero. Can i use the cooker without...


Try putting your grill on low for 30 minutes to one hour the clock should start to flash then leave to flash for five minutes after which press reset. It worked for me on my rangemaster 110 (gas)

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I have an Dual brand 300 watt amplifier that I just bought and I hooked everything up right (battery---power, ground----sanded metal, bypassed remote with toggle switch remote-----+terminal on switch...


Is your toggle hooked to ground? Hook your toggle switch to the battery and then the other end of that toggle the remote input on the amp.

Aug 15, 2010 | Car Audio & Video

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How do I hook up a Nitro capacitor?


the cap will connect "between" the main power/gound leads and the amp. If your amp is currently hooked disconnect the power (be sure to disconnect from battery first) and ground leads from amp. Place ring terminals on both leads (red + black - ) and connect to the appropriate terminals on the cap. Then place another wire from the appropriate terminals on the cap to the power connections on the amp.

Oct 28, 2009 | Car Audio & Video

1 Answer

Protect light comes on, no power


Hello patrick_h_mi,

You'll also need a remote turn-on source for the amp to operate. Normally, this is a blue or blue/white wire from your head unit, but for test purposes, you just need 12V to the "remote" terminal on the amp. The amp should power up without speaker inputs or speaker connections, but it is not recommended.

Hope this helps.

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1 Answer

Red light comes on but amp still tries to kick.


Try removing the caps out of the system. It sounds like they have gone out. What is happening is the caps start storing up the power like they are supposed to do but then they are being discharged as soon as they are full. Bypass the caps and that should correct your problem.

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1 Answer

Amp not working


do u need the remote wire hooked up to your cd player for your amp to turn on

Nov 12, 2008 | Car Audio & Video

1 Answer

Amp not working


Does it do the same thing if you remove the RCA input and disconnect the wires from the speaker terminals of the amp?


Oct 25, 2008 | Infinity Reference 7541a Car Audio...

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Alpine 1507


I would either try a bigger fuse, if possible, or turn the power output dial on the back of your amp down. This can be done with jus a simple flathead screwdriver. I suggestion would be to go out and buy a power monitoring cap. Wal-mart, or Tweeter usually distributes them. It'll have a LED reading on the top, with two wire hook-ups either on the bottom or the top for positive and negative, place this in between your amp and your subs in the wiring set-up.

Feb 25, 2008 | Alpine MRV-1507 Car Audio Amplifier

1 Answer

Status light red


You may have your subs hooked up to it wrong. Either way the amp is definitely blown. Have a stereo shop check it out and examine your wiring.

Sep 13, 2007 | AudioBahn A4125HCT Car Audio Amplifier

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