Boulder Amplifiers 860 - Manual (Page 20)

APPENDIX
5-2
TROUBLESHOOTING
SYMPTOM CAUSE REMEDY
No power indication Power switch is not on Turn on rear panel power switch
Power amplifier is not plugged in Connect to an AC outlet
Home circuit breaker is tripped Reset circuit breaker
Fuse on rear panel blown Replace fuse
Red power indication Low line voltage Have line voltage checked
Power supply breaker tripped Reset breakers on rear panel
Defective amplifier Return to dealer for service
Amber power indication, but sound not
heard from one channel
No signal from one channel of source Check source controls, cables, and
connections
One channel is muted by balance control Recenter balance on preamp
No signal out to power amplifier Check connections to power amp