Rockford Fosgate 200.4

[BubbaH]

I was given a Fosgate 200.4, 4 channel car amp. When tested last summer I could get little sound, heavily distorted. With my Pioneer 4 channel amp continually malfunctioning, and eventually replaced with a 2 channel amp, I decided this might be something interesting to tackle as I have nothing to lose.

Upon first inspection, I didnt notice anything out of the ordinary.

Once removed, with the board flipped over I could instantly see a couple potential issues.

Flipping the board back over I see the problem(or at least part of).

I will try to replace these. I dont have much experience with this stuff, or any test equipment. So it will be trial and error.

Any tips appreciated.

 

[laatsch55]

I've fixed a few over the years and it was a hit or miss deal. Just like you , replacing roasted components. I could never get my hands on a service man ual....

 

[BubbaH]

Indeed. Seems as though Rockford doesnt spread them around much. Most information I come across seems to suggest sending it back to RF. Not really interested in that though. This will be more fun. I just need to figure out exactly what these resistors are.

 

[laatsch55]

They are BIG resistors...

 

[BubbaH]

Trying to figure out what type of resistor will work for replacement.

From the top, the color lines are brown black gray gold.

I spoke to a couple of my electrician buddies, but they seemed to be in disagreement as to coding.

Any thoughts?