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Old 25th August 2009, 10:36 PM   #1
amc32 is offline amc32  United States
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Default Massive Amplifier Class D Driver Board

Need to replace What massive calls "Bass Kompressor" circuit. If anyone knows what the make is or another amp using same board let me Know. I really having problems repairing/replacing this one because Massive has the board incased in epoxy.
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Old 25th August 2009, 10:52 PM   #2
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How did you determine that it was defective?
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Old 25th August 2009, 11:24 PM   #3
amc32 is offline amc32  United States
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well while I'm tested all the vitals of the amp. I'm noticing I dont have my square wave on the outs(irf640's). Rails are fine. I can see the metal can seem to be lifted surrounding the drive circuit. With me O-scope still clamp on a 640 I push the metal can down. There goes my wave.I remove PCB thinking to repair cold solder joints. Solder made,no wave. I remove can epoxy is cracked surrounding drive circuit and when I push on it,amp is back to working order again. Removed drive circuit to maybe repair some traces on drive circuit itself,I find bottom of board is layerd in epoxy also and impossible to get around without doing damage to board itself.
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Old 25th August 2009, 11:44 PM   #4
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OK. Let me ask around to see if I can find anyone that has one.
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Old 26th August 2009, 12:22 AM   #5
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Email me.

babin_perry@yahoo.com
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