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Amp Power Cables Wired in Reverse Polarity


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damofinefidelit 
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Location: Australia
Posted: July 30, 2019 at 1:57 AM / IP Logged Link to Post Post Reply Quote damofinefidelit
I connected the power inputs in reverse and my amplifier made a popping sound and smoke came out is there a chance I can save the amplifier?
damofinefidelit 
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Posted: July 30, 2019 at 2:01 AM / IP Logged Link to Post Post Reply Quote damofinefidelit
It's a Response cat.AA-0435 4x100wrms mosfet power amp
i am an idiot 
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Posted: July 30, 2019 at 8:15 PM / IP Logged Link to Post Post Reply Quote i am an idiot
If it was properly fused it would not have hurt it much. There is a diode across power and ground, this is known as a reverse polarity protection diode. It may have only shorted that diode and burnt a trace on the circuit board. Have you opened it up to see if you can see what may have smoked?
damofinefidelit 
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Posted: July 31, 2019 at 7:59 PM / IP Logged Link to Post Post Reply Quote damofinefidelit
I found that two mosfets the center terminals have become disconnected from the pcb and two ceramic components have also become disconnected as well if I could send pics of these components I would
DYohn 
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Posted: August 04, 2019 at 12:49 PM / IP Logged Link to Post Post Reply Quote DYohn
forbidden 
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Posted: August 04, 2019 at 2:05 PM / IP Logged Link to Post Post Reply Quote forbidden
If the magic smoke that makes it work has been released, you 100% need to replace the amplifier.
Top Secret, I can tell you but then my wife will kill me.
damofinefidelit 
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Posted: August 06, 2019 at 2:05 AM / IP Logged Link to Post Post Reply Quote damofinefidelit
Thank you
damofinefidelit 
Member - Posts: 7
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Joined: July 30, 2019
Location: Australia
Posted: September 30, 2019 at 7:27 AM / IP Logged Link to Post Post Reply Quote damofinefidelit
Thanks mate will try that out is there any reason one of the legs on a most amplifier chip would have blown off the pcb
i am an idiot 
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Posted: September 30, 2019 at 3:05 PM / IP Logged Link to Post Post Reply Quote i am an idiot
Because you connected it backwards with too large or no fuse.

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