Boulder 508 - Troubleshooting

3-4
Appendix
Appendix
Troubleshooting
SYMPTOM CAUSE REMEDY
No power indication Power Switch is not in ON
position
Move Power Switch to ON
position
508 is not plugged in Connect power cord to AC mains
outlet
508’s fuse is blown Replace 508’s fuse
Home circuit breaker is
tripped
Reset home circuit breaker
Low line voltage Have line voltage checked
Defective power cable Have power cable tested or
replaced
Defective 508 Return 508 to dealer for service
Red LED indicator 508 is Muted Press Mute button to take 508 out
of Mute mode
Phono preamplier is booting
up
Wait until boot process completes
Defective power supply Return 508 to dealer for service
White power
indication, but
no sound
No signal from one channel
of turntable
Check turntable cables and
connections
No signal out to preamplier Check cables and connections to
preamplier
Hum through loud-
speakers
No ground connection Check or install ground wire
Duplicate ground connection Use only one ground wire to
turntable or use the ground in a
balanced cable
508 or turntable is too close
to another component’s
power supply
Move 508 and/or turntable away
from power supply