Recently acquired DC-10 question

[IonicR009]

Traded an amp for this DC-10 combo. The amp seems to function great and sounds awesome.

But checking the board I noticed this area that seems to have overheated and wondering if this is something of concern?

 

[Jamme1961]

Could clean it up with some 99% alcohol and Q- tips. Are you sure it’s overheating? Maybe the electrolytic caps are leaking on to the board?

 

[tbonesullivan]

That area looks to have been worked on. Mesa does not usually install resistors with "legs" that long, so those have been replaced. The solder also does not look to be factory.

 

[IonicR009]

That area looks to have been worked on. Mesa does not usually install resistors with "legs" that long, so those have been replaced. The solder also does not look to be factory.

Might’ve been worked on after a few resistors burnt out and they just didn’t bother to clean the board? Or just used so much heat they burnt the board them selves
Not the most attractive solder job either.

Didn’t have time to take the board out again, Jamme but will do if I bring this monster back home from our rehearsal space.

 

[tbonesullivan]

Might’ve been worked on after a few resistors burnt out and they just didn’t bother to clean the board? Or just used so much heat they burnt the board them selves
Not the most attractive solder job either.

Didn’t have time to take the board out again, Jamme but will do if I bring this monster back home from our rehearsal space.

Mesa Boogies from that era have a conformal coating on the boards, which once it gets discolored, can be a royal PITA to clean. That very well could be from the heat exposure that was suffered, which is also why the replacement resistors were put up higher.

 

[IonicR009]

Mesa Boogies from that era have a conformal coating on the boards, which once it gets discolored, can be a royal PITA to clean. That very well could be from the heat exposure that was suffered, which is also why the replacement resistors were put up higher.

So in other words, nothing to worry about