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Rockford Fosgate 2500.1bdcp, questions.
Rockford Fosgate 2500.1bdcp, questions.
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Old 14th March 2019, 09:28 PM   #41
rhempz01 is offline rhempz01  United States
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Drive
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Old 14th March 2019, 09:31 PM   #42
rhempz01 is offline rhempz01  United States
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After looking at all the drive wave forms, and touching up the solder for transformer, and capacitors. i attempted to b+ the amplifier with 1 mosfet per bank. Smoke came from a cracked diode d107 labeled 81H
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Old 14th March 2019, 09:44 PM   #43
Perry Babin is offline Perry Babin  United States
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You can't tell anything much about the drive signal on AC coupling. Switch to DC. The FETs need to be in the circuit or there needs to be a load, in place of the FETs.

81H is a 33v Zener. It's not critical and can be removed for testing.
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Old 15th March 2019, 12:42 AM   #44
rhempz01 is offline rhempz01  United States
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Dc drive signal
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Old 15th March 2019, 12:42 AM   #45
rhempz01 is offline rhempz01  United States
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I have one fet in each bank as of now.
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Old 15th March 2019, 01:11 AM   #46
Perry Babin is offline Perry Babin  United States
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Is the scope amplitude off by a factor of 10? It appears to be just under 1v when it should be about 10v.
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Old 15th March 2019, 01:21 AM   #47
rhempz01 is offline rhempz01  United States
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Beacuse these drivers. Do you know which drivers go where in this area? They burnt from either something i did or before?
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Old 15th March 2019, 01:34 AM   #48
Perry Babin is offline Perry Babin  United States
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This is the best I have.
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Old 15th March 2019, 01:36 AM   #49
rhempz01 is offline rhempz01  United States
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Thats perfect perry.
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Old 15th March 2019, 02:01 AM   #50
rhempz01 is offline rhempz01  United States
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Q103 on the back side of the driver card? 1A?
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