Rockford Fosgate T40001.bd - Schematic Request

[Jat40]

Hello. I am new to this forum and actually stumbled across this site when searching for information about RF amp parts and repair. I am very impressed at the level of information and knowledge on this site.

I am repairing a T4000.1bd that obviously was run on very low vehicle voltage and practically fried the entire power supply. All 20 of the FETS are gone, plus all of the drive transistors. The board level parts can’t be identified in anyway making part replacement difficult.


Would anyone be willing to email me a schematic for the amp? Below is my email address.

stoneytay@bellsouth.net

Any help would be appreciated.

Thanks JT

[Brain Fried]

call fosgate they will email it to you i do it all the time. (1800-669-9899 ext-2)

[brandes.cm]

If the amp is current production, RF won't release the schematic.

[Jat40]

Hey Thanks guys. Called RF and they were nice enough to send the schametic. Turns out, when I got home and checked email, Perry, who most of you know, had already sent it to. Thanks again Perry.

This amp is toasted. All FETS in the power supply are shrted, as well as most 10ohm gate resistors, and the drive transistors. On the output, looks like 10 FETS on 1 side are shrted, as well as Q403, that ties to the gate/source for those FETS.

[brandes.cm]

If the fets are in parallel some of the parts may not be shorted. Either way they should all should be replaced with like date code parts.

I have not messed with a T series RF amp, are they any different from previous models?

[Jat40]

I am having the toughest time locating the 10ohn gate chip res. The sch indicates RM/10-0100B. I am just not getting the cross reference here. Can anyone suggest a replacement?

Thanks.

[Jat40]

Originally Posted by brandes.cm

If the fets are in parallel some of the parts may not be shorted. Either way they should all should be replaced with like date code parts.

I have not messed with a T series RF amp, are they any different from previous models?

It has been years since I have worked on an RF amp. All I can say is with the advancements in technology, with smaller packaged components, there is far less through board components as older amps.

[brandes.cm]

Originally Posted by Jat40

I am having the toughest time locating the 10ohn gate chip res. The sch indicates RM/10-0100B. I am just not getting the cross reference here. Can anyone suggest a replacement?

Thanks.

KOA/Speer RK73 series most likely 0805 package.

[Jat40]

Originally Posted by brandes.cm

KOA/Speer RK73 series most likely 0805 package.

Thanks for info. I'll try it and see how they operate.