No sound from outputs

Most unit have RCA outputs that go to an amp.. There are sometimes a mute wire in the harness that goes to the control section. You need to have the service manual to work on these as there are few standards of wiring. Any home integrated amp or receiver should be able to handle the signal once it comes out to supply to speakers. Car players are many times full of broken solder joints. I looked for a picture of the unit but it must be old enough to not have much support.

Sounds like there is a problem with the amp. Try switching the inputs around for that output on the amp. If that does not help, Yes I would have to say that there is a problem with the amp output circuit.

you may have a bad output ic inside the head unit. if this is the case, it needs to be replaced.

1. Do you have power to the unit. I assume yes.
2. Ensure the fader and balance is set to neutral to ensure you have output going to all the speakers.
3. Ensure the speakers are connected.
4. Ensure the speakers are not out of phase, if they are they will cancel each other out, and sound muted
5. Always test new model head units with a cd. not fm radio. Using fm radio on some head units will mute the sound if the station is not coming in clear enough.
6. Set your volume up a little, like on 15 or 20 (using the digital 40 level radios) (halfway in plain language)
7. Ensure the mute isnt on
8. If running through and amplifer, ensure the power, ground, remote, gain and phase are all correct.
9. Ensure rca input is going into the correct place on the amp
10. Ensure speaker output is actually connected to speakers.
hope this helps

When it says that it usually means there is a paper scrap in the sensor flag that is under the long gray roller. It is a black plastic tab toward the right side behind the white plastic guides that the paper comes out under. You need a flashlight to see it and you need to be careful not to break the tab.

Hello, could you be a little more specific and also please tell me what happend when this problem occured. If noise on the output and amp is'nt going into protect mode, then it sounds like you may have a problem in the power supply section or the output section of the amp. If you have checked all connections and all your power and ground connections are fine and also your head unit is'nt causing the problem then it's definately internal. Sometimes the ground on the rca inputs can cause this. That's why you need to check your rca cable and the rca output of your head unit. Check all that and let me know. I do amp repairs for a living. I own a car audio installation and amp repair business and i'm the cheapest you will find for amp repairs anywhere, all with a warrant if interested. Hope this helps, let me know what you find so I can assist you further. Good luck

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/mark_b53a7494531bf96d

Hello meow_mix_666,

If you have tried different amps and different subs with the same result, I'd definitely suspect that you are not getting enough of an output signal from the head unit. Checking the RCA's and perhaps using a different set of preamp outs would be a good idea.

One other possibility that you may not have considered is to check the phasing. I've run into speakers that had the markings reversed and running the subs out-of-phase on a 4-channel bridged would make a huge difference in the bass.

Hope this helps.

if your power light is on then check your preamps (sub out from head-unit).Maybe you need to turn on that output thru head unit's audio menu.Also when using dual voice coils if you wire them out of phase there will be no output

If your head unit has speaker outputs, and RCA outputs, it should be able to use them at the same time. Turing off th internal amp is just to save power and heat if you aren't using it.

To me, it sounds like your "Output Devices" in the MAIN Amp have gone faulty. BUT check the OUTPUT directly at the Head Unit & then the Amp's terminals to make sure.. if ya dont have any signal comming out of the "Head Unit" than thats ya fault.. however if that has a good signal out,there, then it's gotta be ya Main Amp. Ya can check to se if there is output with a small speaker with wires on it, or my favorite an modified earphone, with the wires ends exposed so ya can "Touch" them to the Output terminals/Plugs etc, of whatever ya wanna test. NB: Only test at a low level output.