Diablo 2500.1 output driver card - diyAudio
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Old 29th March 2012, 04:29 AM   #1
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Default Diablo 2500.1 output driver card

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.
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File Type: jpg diablo_driverA.jpg (116.2 KB, 83 views)
File Type: jpg Diablo_driverB.jpg (105.0 KB, 79 views)
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Old 29th March 2012, 04:31 PM   #2
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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.
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Old 29th March 2012, 05:53 PM   #3
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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:
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Old 29th March 2012, 06:31 PM   #4
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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.
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Old 13th May 2012, 08:51 PM   #5
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This driver card is used on the Memphis PR 500.1 or equivalent series amps. Does memphis offer up schematics, anyone have one?
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Old 13th May 2012, 09:40 PM   #6
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I have a driverboard sitting here thats the same one..
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Old 14th May 2012, 12:44 AM   #7
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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?
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