rockford fosgate t2000-1bd blown power supply mosfets

[2sheezy]

please help me!my rockford fosgate t2000-1bd smoked a couple of mosfets as soon as i connected the - and b+ to the amp,and it did'nt even have the remote lead hooked !for years i've been threatening to repair my own amp,but this time i would really like to go through with it.i do a little solid state trouble shooting here and there,but nothing like this and i'm know were near what you would call an expert or child of the trade. i've been reading your treads for a while now and i have to say i'm very impressed with your knowledege level,so please help if you can..

 

[Perry Babin]

Are you sure that's the correct model number?

 

[2sheezy]

yes,it's the 2004 model. i bought the amp broken,so i don't know the history,but i am curious not only how to fix it,but what could've caused this to such a beast of an amp.

 

[2sheezy]

the amp looks ultra clean inside,if it was'nt for the smokin fets i would'nt know were to start.

 

[Perry Babin]

I can't find anything on that amp, get the schematic diagram on the amp from Rockford and email me a copy of it.

babin_perry@yahoo.com

 

[2sheezy]

i got the schematic from rockford,and i'd like to know what are the common parts to replace when something like this happens,and were and how do i check the existing parts.i have'nt used scopes much,but i do know my way around an 87 fluke multi=meter pretty well

 

[2sheezy]

ok,i'm on it.thanks.

 

[Perry Babin]

Which transistors failed (give the circuit board designation of the transistors)?

 

[2sheezy]

did you get the schematic?

 

[2sheezy]

Q6 and Q7

 

[Perry Babin]

Yes. I had it but it was labeled 20001, not 2000-1.

This may be helpful:
http://www.diyaudio.com/forums/car-...-schematics-3.html?postid=1901581#post1901581

You need to replace Q6, Q7, Q9 and Q10.

Check the gate resistors for each of those after removing the FETs.

Q2 may have failed also.

Did any of the output transistors fail?

 

[2sheezy]

i have the schematic for all who think they can help me,i'll gladly email it to you.

 

[2sheezy]

any idea who has the parts now?digi key and mouser are out for a while?the part# is 7534463G

 

[brandes.cm]

Is that part # correct? HUF75344G3
HUF75344G3 ROCHESTER ELECTRONICS, LLC 1872 10/03/2011
HUF75344G3 AVNET ELECTRONICS MARKETING 157 10/03/2011
HUF75344G3 ARROW ELECTRONICS Available 10/01/2011

 

[2sheezy]

actually its just 75344G3,but when i cross refrence it that's what comes up.do you think i'll need anymore parts rite now,nothing else checked bad,but i dont wanna smoke my newly installed mosfets as soon as i get'em.

 

[brandes.cm]

If you haven't been here(see link), read this info first. It can save you money and a bunch of questions. If you feel nothing else is bad order them up, but order twice as many as you need. This will save you the shipping cost when the first ones fail because you missed something. If you slow down and double check everything then you can be certain nothing was missed.

Basic Amplifier Repair

 

[Littlekenny206]

T30001bd

I also have a t3000 which u said u have schematic for .....q427 mosfet has plastic popped out in center and c57 c52 c56 capacitors are only on board by one side

 

[Perry Babin]

Please don't post in a repair thread that was started by someone else unless you are trying to help them.

Start a new thread.