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Old 29th July 2010, 01:51 AM   #1
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Join Date: Sep 2006
Default Rockford Fosgate BD1500.1

I recieved yet another 1 of theese in for repair.

I worked on a few of theese and never seen this before.

On the SG3526 there is a jumper from pin 5 to pin 8 and a 2.2uf 50volt cap from pin 7 to pin 8.

Did rockford do this as a mod? Or is this something someone else tryed to mod??
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Old 29th July 2010, 02:40 AM   #2
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Join Date: Nov 2003
Location: Louisiana
I've never seen that mod. The reset pin appears to be left unconnected on the BD schematic I have. What's wrong with the amp?
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Old 29th July 2010, 03:48 AM   #3
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So far i replaced the rca jacks and a switch.

Amp plays for a few mins then goes into protection mode
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Old 29th July 2010, 05:23 AM   #4
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Location: Louisiana
Post the voltage on all of the pins of the LM339 before and after it goes into protection.
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Old 17th March 2011, 10:39 PM   #5
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Join Date: May 2010
Location: Washington State
I have seen that mod on lots of bd1000 and bd1500 amps I have been told it bypasses the protect so you can run at low impedances, but this may not be true. I have several amps with this mod.
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