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Old 21st June 2011, 05:42 PM   #1
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Default rockford fosgate bd1500.1

hi all.firstly forgive me if i opened a new thread in the wrong place.please direct me here moderators.

now then.i got a rockford fosgate bd1500.1 from a friend that goes into protect when powered i took it apart and found one fet reading short.its irf3415 i'm assuming this is in the output i disconnect this fet from the board and tried startin the amp again.this time it draws excessive current from my power supply and blows the fuse.all the while its whining a lot too.i tried desoldering the red + black wire to isolate the amplifier section and it starts up ok idling at around 2 amps.also tested the transformer and its output is around 59 volts ac.

please lead me as to where else i must check now..
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Old 22nd June 2011, 05:34 AM   #2
MOER is offline MOER  United States
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Default ROCKFORD BD1500

Send me your email address and I shall send you the schems

Mine is

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Old 23rd June 2011, 12:34 AM   #3
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Location: Carlisle, England
Interesting it still draws too much current with the faulty FET removed.
Are you sure the other one hasnt gone as well ?

Or could be chip that has been wiped out with the FET?
Murton-Pike Systems PCBCAD51 pcb design software.
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Old 23rd June 2011, 01:55 PM   #4
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hi my addy is
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Old 23rd June 2011, 01:57 PM   #5
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which chip do you refer to nigel?
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Old 25th June 2011, 02:52 PM   #6
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ok guys i pulled the outputs from this amp and all the current issues ect is sorted out but i still have the protect light on.any thoughts will be appreciated .
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Old 2nd July 2011, 09:28 PM   #7
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still waiting on the schemes moer....
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