Details：

Mono pcb size：18 x9cm



Debugging instructions:

1: After solder all of the components and installed with heatsink . check whether has any mistake carefully.
2: Transformer primary series one about 50W bulb ( this protect the board if has mistake)
3: Adjust R105, to make the Out---GND voltage close 0MV
4:Adjust R126,to make the Voltage "V1" on R201 (R201.202.203 or 204 are all ok). I= V1/R201. usually, the "I" about 600ma-1000ma. will be ok.
5: repeat setp 3.
6: After power on about 50 minutes. repeat step3 . step4.step4. After power on about 2 hours. repeat step3 . step4.step4 again.

Package included：

KSA50 stereo amplifier board pcb x 1 （2 channels）

Not included any parts ！