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Re: RCA inputs bad
If you got the exact same ones, you should be able to simply pit them back into the same holes. if you did not get the same ones, look at the open holes, two should be connected together, and two are separate. Hook the two that are connected together to the ground part of the jacks, and the middle connections of the jack to the other two holes. if this does not make any since, send a picture of the jacks and the board so we can look at it for you. Good Luck
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YOUR METHOD OF TROUBLESHOOTING USING THE PROCESS OF ELIMINATION IS RIGHT ON AND PERFECT. IT INDICATES A BAD AMPLIFIER CHANNEL. I KNOW THIS SOUNDS ODD, AS YOU HAVE TWO OF THESE NOW. IT IS RARE, BUT I HAVE SEEN INPUT CONFIGURATION SWITCHES WIRED BACKWARDS, SO THE ONLY THING LEFT TO DO IS TO HOOK UP THE BAD CHANNEL TO ONE SPEAKER ONLY, BY ITSELF. THEN TAKE ONE RCA ONLY AND PLUG IT INTO ONE RCA INPUT AT A TIME. THEN MOVE THE INPUT SWITCHES AND REPEAT THIS PROCEDURE UNTIL YOU HAVE TRIED ALL SWITCH COMBINATIONS AND ALL INPUT JACKS. WHAT YOU ARE TRYING TO DO AT THIS POINT IS TO DETERMINE IF THERE IS ANY RCA JACK WITH ANY SWITCH POSITION, THAT WILL ALLOW YOU TO GET OUTPUT FROM THAT CHANNEL. IF AFTER THIS TEST, YOU STILL HAVE NO OUTPUT, THEN NO MATTER HOW ODD, IT WOULD INDICATE THAT YOU DO IN FACT HAVE A SECOND DEFECTIVE AMPLIFIER. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V
it could be your input section on your amplifier were you rca jacks go in but you should check and make sure it aint your cd player out put on your rca jacks the easy way to check this is with a meter and a cd playing in your cd player turn your meter on volts usually your out put on rca 2.5v some cd players put out 5v so take your postive tester needle and stick it in the inside part of your rca jack and take negative tester needle and touch the outerside of the rca jacks and see if you get any reading if do that good on that part but on your amp no it could be in the input section of your amp it could be as simple as a burnt trace wire on the bottom circuit board or a op amp chip theirs alot in a amplifier but you can test them with a meter to find out witch one bad but i would take it to some one that work on amplifiers if you dont know how to test them
You did not specify exactly which Jensen amp you have. None of the Jensen PowerPlus series I found had high-level inputs. You can go here and select your amp to download the manual. They should also have the connector for speaker inputs.
Most amps that have both high-level and RCA inputs allow you to use one or the other, but not both at the same time. If your head unit has RCA ourputs, those would be the ones to use, because they generally provide a cleaner signal to the amp with less noise.
If the center conductor of the RCA plug broke of inside the RCA jack of the amplifier, you may be able to push it out from the back. If that's not possible, you may have to remove the jack from the board, disassemble it and then push the center conductor out. If you send me a photo of the jack, I may be able to offer more suggestions.
if you are using RCAs as inputs to your amp.Swap the R to L @ RCAs to see if its comming in okay from radio.If both RCAs have audio then amp is bad ,If amp has any type of switches , move swithces to see if it comes back .Also if both RCAs inputs have audio .Move the RCAs when connected on amp to see if amp has bad connection in board to RCA jacks..If audio comes back on bad side when jack is moves .Then you have bad solder joints on board..If not then you must have bad outputs on amp..