rockford fosgate power T500.2 problems

[amp it up]

Hi I have a rockford fosgate t500.2 that has 45.9 DC volt on the left and right speaker out put. it looks to have been worked on before. the transistors all check out good but the LM337T & LM317T & U1620 & U1620R all get hot fast. I'm kinda new to this and I do have a good test meter. THANK YOU!!

 

[Perry Babin]

T5002?

With the black meter probe on the chassis ground, post the DC voltage on all of the legs of the components you mentioned.

 

[amp it up]

t 5002

Hi, Perry and thanks for helping me!
Lm337t 1st, leg13.1 2,leg 45.1 3, leg14.26
Lm317t 1st, leg14.11 2,leg15.38 3,leg45.2
U1620 1st,leg.014 2,leg45.3 3,leg.030
U1620r 1st,leg.030 2,leg45.9 3,leg.030

 

[Perry Babin]

Were the voltages on the LM337 and the center leg of the 1620R negative?

Is the DC voltage on the non-bridging speaker terminals at ~0v?

Is the DC on both speaker terminals positive or is one (or both) negative?

Email Rockford and get the schematic diagram for this amp. Email me a copy of it.

babin_perry@yahoo.com

 

[amp it up]

t 5002

Hi, Perry yes the amp is a T5002 I called rockford and they said they will see what they can do. the voltage on the LM337 and the1620R is negative. the DC on the non bridging terminals is ~0v . the left speaker terminal + and the right is - THANKS Perry!!