How do you repair a guitar amp

Question

the model is HY-10G III it's receiving power but is not producing any sound.

Answer 1

check the input jack make sure the wires are connected to it.I do repair amps if you give me more info on whats goin on with it im sure i could talk you threw fixing it

Answer 2

er there is no answer for that it needs to be checked for the fault unless you have the test gear take it to a shop let them do it  

Answer 3

Get a schematic, check the output transistors for shorts, try a different speaker.