Denon DN-C680 Operating Instructions Manual page 5

NOTE ON USE
Avoid high temperatures
Allow for sufficient heat dispersion
when installed on a rack.
Handle the power cord carefully. Hold
the plug when unplugging the cord.
6
Keep the set free from moisture,
water, and dust.
Unplug the power cord when not
using the set for long periods of time.
"(For sets with ventilation holes)
Do not obstruct the ventilation holes.
Do not let foreign objects in the set.
Do not let insecticides, benzene, and
thinner come in contact with the set.
Never disassemble or modify the set
in any way.