My Pioneer FH-P4400 has a 40W output and when I had it installed origionally in my car I had it hooked to an exteral 100W Kenwood amp. Recently two of my channels started distorting (volume were levels ok) so I unhooked the speakers from external Kenwook amp and hooked them directly to the Pioneer to isolate and determine if the distortion was coming from the pioneer dash player or the Kenwood power amp.
When I hook the speakers to the Pioneer player there is no audio (very faint and you can barely hear it at full volume). I'm hooking the speakers to the same RCA jacks (Front Output) that were going to the power amp. I also tried hooking speakers to Rear Output (normall not hooked to anythiing) but still no audio. There are a couple of other jacks marked L R but I assume those are for some external input device. So my question is, since this player has a 40W output and should push my speakers ok, I have no sound so is there some setting on my player to change output from preamplified to amplified, or is there some other output connection I should be connecting my speakers to? It's like I am getting signal from a preamp only to my speakers and not an amplified signal.
thanks - Dale
In a radio like your Pioneer and all similar units there are always a pre-amp circuit that feeds a power amp circuit,In some players there are more than one pre-amp circiuts. It is possible and highly probable that the power amp circuit in your Pioneer is shorted, so you still get some audio output , but very little. I believe this is your problem and I suggest that you bring it to a repair shop for an estimate or replace the unit. Good luck and please rate this answer, Thanks.
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I understand, although it doesn't make sense that when my player is hooked to the power amp, that the volume level is the same as it ever was same as when it was new (except for the base distortion in front speakers). If it used to have an amplified output of 40W as input to the power amp, and now the 40W amplifier is not working and only the pre-amplified signal is the only input going to the power amp, why is the volume level be the same both ways?
According to installation manual you should have standard speaker wires for the amplified output. Green - Left Rear Positive, Violet - Right Rear Positive, White - Left front Positive, Gray - Right Front Positive. Black striped wires are the corresponding negative connections. The third set of RCA jacks on the back of the unit is for subwoofer amp. None of the RCA jacks will be amplified output and it sounds like you are connecting speakers directly to them.
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