Question about Rockford Fosgate Car Audio & Video

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If a rf2002 car amp has an extreemly low output to speakers how would u check the internal circit board for the prblem?

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Posted on Jan 02, 2017

joshter32
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SOURCE: wire my rockford fosgate rf2002 amp and 12"sub to cobalt

Hi my names Josh. I see you want put your rockford amp in. Assuming you have your factory radio you have some wiring to do. But first you need and amp kit it wil have the necessary wiring you will need in it to wire your amp to your car. You will also need a line level converter they you can pick on up at best buy other wise known as a pac converter. This will alow you to transfer the high level frenquency your radio puts out to a low level frenquency to go strait to your amp through a pair of RCA's thus giving you sound to your amp and then to the sub. Your wiring will consist of the ground which you will have to ground off the vehicles chasis no more than a foot from your amps designated location. Then you have you power 12v which is about a 4 gauge wire and will be fuzed and ran strait to the positive side of your battery and last will be your remote wire. Your amp will have a place marked remote on it that is strickly for you to wire to your radio/ignition source for powering the amp up when radio is on and powering it down when it is off. YOU MUST ISOLATE THAT WIRE with a 12 volt tester it will be the wire that is tied in to your radio to power only when your igniton is on and when you turn your key it should tell you if you know how to properly check for this wire. wants you istolate this wire you will want to tie into to it and then of coarse run it and tie it into your amps remote power again it will be marked remote on your amp. From there all you have left is tying in your line level convererter.. This takes some patience as you must make sure that you do isolate your sound left and right postive and negetive front and rear channels the line level converter will tie into either your front or rear channel but caution you dont get them mixed or you will not have a signal at all. Again my names Josh and i hope you are able to get it hooked up okay.

Posted on Mar 07, 2010

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Vizio tv model e390-a1 no audio. Tried pc speakers logitech s120 from audio out only get hum.can I fix internal prblem myself?


check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Pull up older posts. Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts. http://electronicshelponline.blogspot.com/

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GAS Ampzilla amplifier One channel of the amp was shorted by the speaker wires. Is there an internal fuse that would have blown or do you otherwise know what may have been affected?


Hi,

Not sure about that particular amp but most do have a fuse to protect the output of the power amps, check on the board sometimes they are slow blow glass fuses soldered directly on the board or could be electronic fuses. Look for the designations for fuses or fusible links/ resistors. EG: F1, or Amp ratings : 15A around the output connections.

Hope this helps.

Sep 07, 2015 | Car Audio & Video

2 Answers

My Marantz sr 4001 receiver has no output. Is


There is no fuses for the speakers. Check setup. If the receiver has 7.1 channel input try to connect a source there so you can check output (amp) section and the speakers.

Jul 18, 2010 | Marantz SR4001

1 Answer

Problem(s) Description(s): Initially intermittent output with good audio quality on all four speakers/channels,( five minutes of output then maybe two minutes of silence) then no output at all on all four...


yes you have a internal fault of the amp. the circuit that puts it into safe mode is bad and that is a very small chip on the board know as a op amp. needs to be repaired.

Jan 16, 2010 | Rockford Fosgate Punch 600a4 Car Audio...

1 Answer

BLOWS FUSES


If it blows fuses only after the remote voltage is applied, the amplifier likely has shorted output transistors.


Let me know if you have any other questions.

Aug 30, 2008 | Rockford Fosgate RF2002 Car Audio...

1 Answer

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

AMp keeps blowing fuses


When any amp blows fuses, this indicates that something is drawing too much current. The most common cause are components in the output stage and driver stages that have become defective.

On the amp that is blowing the fuse with the volume being turned up, this means that the output stage is partially working. The short or over-draw of current must be in the output stage, or what is loading it. It is possible in this case that a crossover in a speaker unit is defective, and is drawing too much current. I have seen this with especially sub-woofer crossovers, and the driver itself. Subs pull a lot of current because of the amount of drive power required to have very strong bass sounds. Other than that, this still does not rule out the possibility of the problem being defective components in the amplifier.

Jerry G.

Apr 25, 2008 | Car Audio & Video

2 Answers

No sound through speakers


are you using RCA outputs(the round red and white plugs)? if you are then your amp is not turning on and if you are hooking up speakers to your RCA's (low level) then you will not hear any audio the signal is to low. would need to know more about how you checked the ic power?? one could verify an output ic by hooking up an amp since the RCA audio signal is picked off just before the output. if the low level works but the speakers do not then you have a bad output. anything else an o-scope would be handy.
good luch stereo tech (genesisportland@hotmail.com)

Feb 03, 2008 | Alpine CDE-9881 CD Player

1 Answer

Low ohm light on with no speakers connect??


This can happen if the amp has an internal fault such as a shorted output transistor.

Dec 26, 2007 | Jl Audio 300/4 Car Audio Amplifier

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