Does anyone have the schematics for PCB #1325-57682-03? It also uses PS board #1325-57321-02, 4-channel pre-amp 1 card #1325-57247-04, 4-channel pre-amp 2 card #1325-57248-03 and the 2 output cards are #1325-56884-02.
I contacted Rockford and they would not release them to me.
When I got the amp, the LR channel mosfets were blown.
What confused me was that they used IRF5210s and IRF3415s in the front left and right channels and IRF5210s and IRF1310s in both rear channels.
I also found the source resistor was open, a "1G" and "2G" transistor shorted and 2 each 22R1 resistors blown in the LR channel.
I have replaced all of these parts and have powered it up and input a signal.
The signal on the drains of this channel is just half of the input signal.
All of the other channels look good.
I am finding it difficult to trace the signal through this thing.
I also noticed that the LM317 and the LM337 got fairly hot if I applied power for more than a few seconds.
When I got the amp, the LR channel mosfets were blown.
What confused me was that they used IRF5210s and IRF3415s in the front left and right channels and IRF5210s and IRF1310s in both rear channels.
I also found the source resistor was open, a "1G" and "2G" transistor shorted and 2 each 22R1 resistors blown in the LR channel.
I have replaced all of these parts and have powered it up and input a signal.
The signal on the drains of this channel is just half of the input signal.
All of the other channels look good.
I am finding it difficult to trace the signal through this thing.
I also noticed that the LM317 and the LM337 got fairly hot if I applied power for more than a few seconds.
Swapping the driver boards would tell you where the problem is if the problem followed the driver board.
