Question about Kenwood Audio Players & Recorders

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Faulty RCA rear out on KDC 2020

The RCA connection is faulty on my head unit and as such signal to my amplifier is sporadic at best. I've had a look inside to see if i can solder the connection, but it does not look like i can do anything about it as the RCA does not join onto the circuit board itself, but via a plug.

I was wondering if anyone knew a little bit more about this unit that could give me some tips on repairing it?

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There will still be a place where the phono sockets are soldered usually underneath them ,and earth to case,desolder original solder joints and resolder with new solder,of course check your cabling first ...

Posted on Jan 15, 2009

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The bus connection is actually not an RCA looks very, similar i think if you look at it it will say IN. as far as i remember its an input for like a CD changer. Run a Y splitter on one of the other RCA out put, split the signal and run one to your bass amp. it does not affect the voltage in the RCA signal. i think your amp is trying to send a signal instead of receiving one.

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WHAT DO IT MEAN FOR MY AMP TO READ DIAGNOSTIC


The diagnostic light, for this particular model, means that there is either a short circuit on the loudspeaker leads or there is an internal amplifier fault that is causing a DC offset. In order to determine which, disconnect all RCA and speaker leads while keeping the +12 volt, power ground and remote leads connected. Now turn the amplifier back on, and if the diagnostic LED lights up, the amp has an internal fault. If not, plug the RCA cables back in and reset the amp. If it goes into diagnostic now, the problem is with the input (either bad cables or a faulty head unit). If the amp is fine with the RCA cables plugged in, repeat the process with the speaker cables (one at a time). When you plug in the faulty speaker wire it will put the amp into diagnostic mode.

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Amp stopped playing riding down the road, power light turned off. came back on when i unplugged the rca's and cuts back off when i try to plug them back in.


Faulty RCA cables, Or worse possible solution is if your amp stopped playing when it was pumping at high volume, you may have blown the RCA connectors inside your head unit Or inside your amp. If possible try another known good working amp with the wires you already have, If same happens, try different RCA cables. If problem persists after trying these, Its your head unit RCA connecters or amp RCA connectors. To rule out your amp connectors, try your amp in a friends car if possible, to rule out your head unit, try another good known working amp in your car with the wiring you already have

Mar 03, 2011 | Kicker ZX300.1 Car Audio Amplifier

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I have jvc car audio model # kd-g335 how to connect my sub woofer?


You can not connect the subwoofer directly to your head unit. You need an amplifier installed to play the sub woofer. Asuming that there is an amplifier installed then: If your head unit has an RCA output on the rear, connect that to the LINE IN of your amplifier. Also there should be a Blue&White cable at the rear of the head unit.(amplifier remote) That should be connected the the remote terminal on the amplifier. (this will turn the amp on and off when the head unit turns on or off) Hope this helps. dreamsystems

Feb 08, 2011 | JVC KD-G340 Car CD/ MP3 Player

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My powered subwoofer has RCA inputs for four jacks. (two front, two rear) My CD head also has four RCA outputs (2 front and 2 rear). Is there some advantage to connecting all of these with patch cables, or...


the advantage is every time you split a pre-amp signal, the voltage, too, divides in half. Your signal (music) is going down the river at 2 volts say, and when it gets to the amplifier, it is split into 4 streams. The signal will be distorted and the amplifier will not work as efficiently. Use the Front AND rear RCAs so your amplifier uses the best possible signal - for the best possible results!

Also, if you are using 4 RCAs you get true stereo FL FR RR RL Instead of L and R

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1 Answer

Kenwood KDC-X590 CD Player


what do you mean by one set is a hard wire and other is an rca jack?the hard wires go to the speakers and the rca is wired to an amplifier of some sort which is wired off to more speakers or subwoofer(s)

Aug 12, 2008 | Kenwood KDC-X590 CD Player

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I just bought a KDC MP-235 to put in a 95 camaro with bose amplified speakers. I ordered a amplifier intergration component to reduce the output of the 50 watt per channel head unit as to have better...


Hi,

Yes, the Kenwood KDC MP-235 has two (2) line level outputs (RCA types red & white). However, these outputs internally passed through an electronic crossover/filter making them appropriate for subwoofer amps only.

If your unit is an MP-235CR, then the same outputs would be for the rear amp (not subs) and are full range (unfiltered).

If indeed your unit is an MP-235 and if I may make a suggestion, still connect the Kenwood to four (4) speakers. It would not be technically correct to leave the internal amps operating with no load (speakers) connected. Additionally, you would be getting 200 watts (4 X 50) more to your system (since it is already there).

If your Bose amp & speaker are subs, then no issue, however if the Bose is for a full range of speakers, then only the woofer part would be working efficiently.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

May 15, 2008 | Kenwood Car Audio & Video

1 Answer

How do i install a subwoofer and amplifier to an exhisting car audio system


Hi,

The basic would be to wire the sub amp to your batteries with the trigger/remote wire powered by your car stereo/head unit. When your head unit is turned on it will in turn power up the sub amp. Of course the sub woofer need to be wired to the amp. For the signal/audio wiring, normally, the head unit has a stereo RCA female connectors at the rear intended to be connected to external amps through a pair of shielded/audio cable terminated both ends with RCA males. Some units have a special RCA specifically for subs. Most eternal amps also uses RCA for their inputs.

If the existing car audio system has already an external amp and your plan is to add on to this, the audio/signal from the head unit could be split to provide both for the existing and the new sub amp.

If the existing car audio does not have an external amp and their are no RCA connectors at the rear of the head unit, it is still possible to connect an external/add on amp by using an adapter that connects to the speaker wires of the head unit and converting it out to line level (through RCAs) appropriate for the input of the amp.

Hope this be of help/idea. Pls post back how things turned up or should you need additional information. it would also be nice if you can post brand/model of your head unit and intended sub amp.

Good luck and kind regards.

Jan 23, 2008 | Audio Players & Recorders

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