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Re: 6 channel power 1000watts earthquake amps red is on
This is normally a grounding problem in the amplifer. If you have a volt meter, check the voltage at the ground of the RCA input on the amplifier. If that voltage is anything more than just a few millivolts then you have a problem in the pre-amp of the amplifier. You should also only connect or disconnect the RCA jacks while the system is off. Otherwise you can get a loud popping noise that can damage the amp or the speakers. Check that voltage on the amplifer RCA jacks with the head unit not connected to the amp with the RCA cables, then if that is OK, check the RCA cables coming from the head unit. You may even have a voltage on those RCA's coming from the head unit, in which case, you have a problem in the head unit. You will be looking for a DC voltage, if you have anything more than just a few millivolts (0.070 +/- DC volts) on either of those then you have found the cause. After that, it will require a technician to be able to troubleshoot the amp or the head unit to determain why you have that DC voltage where it should not be.
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Just to the left of the output (speaker) terminals, near the top of the amp, there's an LED marked "POWER/PROTECTOR". If the amp is connected properly and powered on, the LED is ON.
If the amp is being used for normal speakers, use a pair of RCA cables and connect the left/right channels to the appropriate inputs on the amp. The switch marked "LPF" should be "OFF".
If the amp is being used with the channels bridged for a subwoofer, use an RCA "Y" adapter and connect the single "Sub Out" preamp output from the head unit to both amp inputs. The switch marked "LPF" should be "ON" and the crossover set to about 80-100Hz.
The rca cables from your stereo go to the "input" part of the amp. Now, if there are four speaker connections in your amp, then it's a 2 channel. If you have eight speaker connections then you have a four channel amp. Note, some amps can be briged to provide more power to the speakers. On a two way amp(2 speakers), the connections can be briged to only one speker providing more power, usually whatever the amp power rating is, say a 500watt amp will put all 500 watts to that speaker. The same goes for a four way amp(4speakers), can be bridged to two speakers(250watts per speaker). Hope this helps.
Cables are either shorted, or deck is putting out too much power for input on amp... many new head-units will put out up to 7v on the output jacks (RCA) the amp may only want to see up to 1v will need to consult head-unit manual for adjustment of outputs.
I recommend you swap your left and right input cables to make sure it's not a source issue.
So from your headunit, plug the left channel output into your amps right input and your right channel output into your amps left input.
If the same side is still not working then disconnect both (or single speaker if it bridged) the speakers from the not working side at the amp. Connect the front and then the rear speakers individually and retest to see if one of them works.
If one does work then check the cabling and speaker connections on the one that doesn't. If it's shorting out anywhere it will stop your amp from powering that channel.
Failing that, it could just be that your amp has partly failed.
Have you tried turning up the vol/gain control? Are all the switches on the amp set for full spectrum output? Are you sure you are using the RCA input and not the RCA output jacks (if it has such)? Check all the switches to be sure they are in the "most default" position. Something you might try, is to make a jumper wire to temporarily jump from the audio input ground to the power supply (chassis of car) ground. If this makes it work then you have a input ground problem in the amp. Good luck. P.S. As for epoxying the trace down on your other amp. If the foil is still in good condition then it should be ok to epoxy it down. If it needs some "help" then do that first, then epoxy.