Diablo 2500.1 output driver card

[brandes.cm]

Has anyone seen this module before? Attached are a few pics with some text added as to what I see on a few pins.
One doesn't have the triangle generated while the other does, but the signal at the gate resistors does not exist.

 

[Perry Babin]

I don't have anything on this amp.

There should be a campaign against manufacturers that will not provide full schematic diagrams or good technical support. Having a list of good/bad manufacturers would allow buyers to confirm that they will easily be able to get their amps repaired. Sending it back to the manufacturer isn't always a good option. I've been told that people have had to wait more than 6 months to get their amps back when sent to the manufacturer.

 

[brandes.cm]

Talking with the owner who commissioned the build; he can't get any info from the manufacturer either.

They file the names off the parts and it makes it impossible to fix.

This may go back to the kid still damaged.:thumbdown:

 

[Perry Babin]

I think the ICs are a LM319 and a TL072. I found some notes I made when working on a memphis with a similar board.

 

[brandes.cm]

This driver card is used on the Memphis PR 500.1 or equivalent series amps. Does memphis offer up schematics, anyone have one?

 

[mike49504]

I have a driverboard sitting here thats the same one..

 

[brandes.cm]

I can input a 40hz signal and see it at the gates, one side is riding on +rail and the other is at -rail. This is without any outputs populated. Loading the gate with a cap eliminates any squarewave that was present. Best I can tell the driver cards are operating, partially!

thoughts?