Hey guys,
Im fixing up my friends guitar amplifier for him (Ashton PM4150), and i am stuck. Does anyone know where i can locate a circuit schematic diagram for this particular model?

The problem is the output transistors have short circuited, due to protection circuitry not working. So i want to create/modify the current pcb so i can rectify this problem.

Has anyone else had a similar problem to this? If so, how did you fix it?

Thanks guys.