Question about Rockford Fosgate 800.2 Car Audio Amplifier

1 Answer

Rockford Fosgate 800.2 no power

I've got a RF 800.2. worked fine until i uninstalled my CB radio and now my amp is not putting out any power. it receives power, the external fuse is fine, but there is no power coming out. what could i have possibly done?

Posted by on

  • 1 more comment 
  • eddietastic Jan 29, 2008

    The CB was hooked up through the wires to my cigarette lighter. the amp's ground is on the other side of the cab. the only wires i can imagine it came close to were the RCAs and the remote wire. a local stereo shop suggested I might have touched a live wire to the chassis, which is what the amp is grounded to. but wouldn't this affect other electrical components as well? and what would that do to my amp?

  • eddietastic Jan 29, 2008

    Thanks for the responses, Ed. I really appreciate it.



    In regards to the wiring, it is all in the back of the cab, and the cab is carpeted. Everything was mounted firmly to the floor and/or walls.



    Could it have happened from the + and - wires touching each other at a speaker terminal?



    Aside from that, I have already looked inside the amp. no internal fuse.

  • eddietastic Jan 30, 2008

    I am not sure what a shorted or opened diode looks like. flat rate from RF is 150 bucks. i'd say that is worth it considering it's like 450 for a new one and i really like having the amp. I will open it up and see if i can figure it out. Thanks for all your help ed, i really appreciate it!



    eddie

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 211 Answers

This one is a real twister. Some questions of you might help to correct this problem.
1) Did you in some way hook the CB Radio up to the amplifier?
2) Did you use the same power lead from the amp to install the CB Radio?
3) In some way, did you unhook the ground from the amp?

These questions will help in solving your problem
I'll be waiting to hear from you
Ed
NC Electronic
Mills, Wyoming

Posted on Jan 29, 2008

  • 1 more comment 
  • Ed Meshechek
    Ed Meshechek Jan 29, 2008

    I would also come to the conclusion that a wire from the amp must have touched a grounded wire/chassis ground. I am in doubt that the CB Radio had anything to do with the amp failing, unless an amp wire ( maybe even a speaker wire from the amp, whether it be a hot wire or a ground wire ) came in contact with the cb case. If the amp wiring did in fact come in contact with the ground, the amp will normally have a protection diode or series of protection diodes to protect the amp if this problem arises. Also some amps have internal fuses in them and it would be my hope that you blew a fuse as this is the easiest problem to correct. Remember, when hooking up am amp, NO WIRES GOING TO THE SPEAKERS CAN BE TOUCHED OR CONNECTED TO ANY GROUNDED SOURCE ON THE CAR. The amp does not use a floating ground circuit like in past radio systems.

    Remove the amp and open it up and take a look and see if it has any fuses and if it does, check them, changing any that may be bad.

    Keep me posted on the results and I'll continue to help as I can

    Ed

    NC Electronic

    Mills, Wyoming

  • Ed Meshechek
    Ed Meshechek Jan 29, 2008

    It sounds as though the mounting is proper. As for the problem happening from the speaker wire + and - touching,that is a definite YES. And it could be instant.

    Since you have checked for internal fuses, it's time to check for any diodes that may have shorted or opened. If there are none, then you may have a bad regulator transistor of at worst, a bad processor chip. If it's anything other than a diode, I'de suggest sending the unit bad to the manufacturer for repair ( if it's worth the cost ) as the factory usually has a flat fee charge to repair the unit, unlike most shops that will charge by the hour plus parts.

    I hope this helps.

    Ed

    NC Electronic

    Mills, Wyoming

  • Ed Meshechek
    Ed Meshechek Jan 30, 2008

    To locate a bad diode, one must have a Volt/Ohm?Meter ( DVM ). The diode checks hi resistance in one direction and low resistance going the other way. If a person is not familiar with electronics as such, this will normally have to be done by a technician. Good Luck with you project

    Ed

    NC Electronic

    Mills, Wyoming

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Rockford Fosgate P3002 stopped working


push down and up on your subs and see if they make a starching noise, if they do then they are blown. take a test light to the amp, on the power and the remote and see if it lights up. if it does then turn the amp down and with a small speaker plug it in to the speaker outs on the amp and see if it plays if not then your amp is bad.

Nov 26, 2013 | Rockford Fosgate Punch P3002 Car Audio...

1 Answer

What is the screw size for the amp cover?


Everry amp is different in the type of screws they use end the size of them, If you have any screws around, They are a fine tread screw, Just keep on trying untill you find some that will work,

Nov 11, 2012 | Rockford Fosgate Rockford X6.a Fosgate...

1 Answer

Where is the power input cable on my x6 rockford fosgate amp


RF uses some pretty funky cases in order to hide the wiring.

usually a screw or 2 on the top will allow its removal and expose the wiring terminals

May 08, 2011 | Rockford Fosgate X6 Type RF 1-Channel...

1 Answer

ROCKFORD FOSGATE X7a Amp, I need compatiable remote control knob.


It will NOT work!
You need p/n AP-3212. If you are in USA then contact Rockford for this part number.

Aug 11, 2009 | Rockford Fosgate Type RF X7 Car Audio...

1 Answer

Rockford fosgate 800 a2 amp power?


Hello desperate2le,

Watts delivered is a function of the voltage times the current. If the amp was 100 percent efficient, it would need 33 amps at 12V for 400 watts. At 14.4V, it would only need 28 amps. Of course, amplifiers are NOT 100 percent efficient, only about 50-60 percent in many cases, but somewhat higher for monoblocks, maybe 80-90 percent. So you're looking at a fuse in the 60-80A range. In the absense of a specific fuse size from the manufacturer, I'd start the primary fuse at a 60A and if the amp blows it on power up/immediately/frequently, move up to an 80A.

All of the Rockford-Fosgate 2-channel bridgeables I've ever seen show using the left positive (+) and the right negative (-) for bridging. But if it's not shown right on the amp, I'd call or email RF for the correct connection. The new amps do show it.

Hope this helps.

Apr 27, 2009 | Rockford Fosgate Punch 800a2 Car Audio...

1 Answer

Amp gets very hot in as little as 5-10 min.


Whats the omh load and how old is amp??? The old Rf amps always got hot that how they worked.... No ventilation???? 

Nov 05, 2008 | Rockford Fosgate Punch 700S Car Audio...

1 Answer

No power


hi, some car amps need a high current remote supply to turn on. first make sure that you are using the proper gauge b+ and gnd cable for this particular rockford amp. then try switching the remtote turn on to this amp thru a simple Relay.(use the remote supply from your headunit as a trigger for the relay). do these connections without connecting any spks or rca line inputs. once amp is switching on then connect all other cables. OR lastly check the main fuse on the RF amp?? cheers

Jul 22, 2007 | Rockford Fosgate Punch P325.2 2-Channel...

Not finding what you are looking for?
Rockford Fosgate 800.2 Car Audio Amplifier Logo

Related Topics:

123 people viewed this question

Ask a Question

Usually answered in minutes!

Top Rockford Fosgate Car Audio & Video Experts

seankane89

Level 1 Expert

53 Answers

hoyzee1

Level 2 Expert

150 Answers

Tygh Duval
Tygh Duval

Level 2 Expert

300 Answers

Are you a Rockford Fosgate Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...