Jensen XA4200 amp problem

[phatmattj]

i recently bought a Jensen XA4200 400 watt 2/3/4 channel amp off of e-bay, ive got it wired to up and all but theres 1 problem, when i flip the switch on, the power/protect light turns red, then green for anywhere from 1 to maybe 5 seconds, then turns red again... im not getting any power to my sub at all... i tried hooking up the wires over and over again, but it still does this, even when i hooked jumper cables from the battery to the amp, the light still did this... any idea what could be wrong? thanx

[Ryan066]

open connection in the power wire going to the amp?
any wires touching?
maybe try messing around with its settings on the side of it.

[phatmattj]

i tried messin with the settings and all, but still nothin, theres no wires touching... i even tried hookin up a portable cd player to it and still nothin, the fuses are all good too. i need to find a connector for the high level input so maybe that will help...

[Ryan066]

maybe shes just fried :/

try hooking it up in a different car maybe or powering a diffrent sub

[ponchonutty]

If you unhook the speaker wires and the power,ground, and turn on are correct, then your amps gone.

Make sure to have a real good power and ground. Most of the times DIY screw that up. A loose ground can really mess things up

[Ryan066]

OOO yeah,,, A good ground!!

I had a bad ground when I installed mine and she would not work ... so I used an eye terminal and bolted it right to my trunk,, convently there was a hole right there lol