help with my ma6100

[calatay]

Hello, I have a ma6100 that in both channels burns the resistor 447/448, what could it be? I already measured all the transistors and none are shorted.

 

[Bob the Tech]

Service manuals call out expected voltages at various locations in the circuit, if you can measure and post what you find it'd help id if there's something not right. Pictures might help too. Those resistors did have a couple different values over time, see the notes in the service manual, but either way I wouldn't think they'd be burning.