Bass Amp Help (Carvin MB10) - diyAudio
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Old 11th January 2012, 04:23 PM   #1
jw721 is offline jw721  United States
diyAudio Member
Join Date: Jan 2012
Question Bass Amp Help (Carvin MB10)

Hello Everyone,
I am trying to fix a Carvin MB10 bass amp for a friend. The amp has been smoking when it is turned on. I opened the unit up and found the part that is smoking but I can not for the life of me find and documentation on the part, to either order a new one or determine a suitable replacement. The board number for the PCB is 30-45300 Revision D and the spot on the board is numbered D23. The markings on the component are NF028G U280. Any help would be greatly appreciated.

Thank you,

Edit: I should also add that the part starts to emit a high pitched whine once the unit warms up.

Last edited by jw721; 11th January 2012 at 04:48 PM.
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Old 12th January 2012, 12:15 AM   #2
Enzo is offline Enzo  United States
diyAudio Member
Join Date: Sep 2004
Location: Lansing, Michigan
So CALL Carvin and ask for the schematics.
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