jvc reciverrx7012v

[WILLYAM1]

hi.
no sound in speakers can hear the speakers relay  click to on but no signals in speakers pins also notis that ther is no audio signals in plugs that leads to 5 boards main amp .
all fuses are ok and seems that all volltge ok .
befor start to dig maybe areset is needed or any service manale?.
willyam1