Denon DRM-400 - Maintenance and Cleaning; Cassette Compartment Cover Removal; Head and Pinchroller Cleaning; Head Demagnetization

MAINTENANCE
m™ Removing the cassette compartment cover
It will be more convenient if the cassette compartment
cover is removed during the cleaning of the pinchroller
and heads, or during demagnetizing of heads. _
Follow these procedures :
1. Press the EJECT button to open the cassette com-
partment. :
2. Hold only the cover of the cassette compartment and
pull it up. The compartment cover is removed from
the front.
When attaching the cassette compartment cover, reverse
the above procedure. :
m@ Head Cleaning
After long usage, tape coating or dust may adhere to
the heads causing deterioration of sound. Clean them
regularly. Use a cotton swab moistened with cleaning
solution (such as alcohol).
Note :
1. Some cleaning cassettes on the market have a strong
abrasive effect and scratch the heads. Use cotton
swabs instead of cleaning cassettes.
2. Since the use of metal tapes is apt to collect more
dust on the heads, clean the heads more often to
“enjoy optimum sound.
10
™MCleaning the pinchroller and the capstan
lf the pinchrolier or the capstan accumulate dust, tape
transport may become unstable resulting from slippage
during recording or playback. The tape can also be da-
maged by being rolled up around the capstan.
Ciean them with a cotton swab or a soft cloth moistened
with cleaning solution (such as alcohol).
m@Demagnetizing the heads
The heads may become magnetized after long usage or
by having a strongly magnetized object brought near them.
The result is a generation of noise, loss of the high
frequency range, or erasing the treble components of
pre-recorded tapes and adding noise.
Demagnetize the heads on a regular basis.
™@ Procedure
1. Be sure to turn “‘off’’ the power supply.
2. Turn the demagnetizer ‘‘on"’ while it is more than
30cm away from the heads. Bring the demagnetizer
near the heads and slowly move it in a small circle
four or five times. ;
3. Slowly move the demagnetizer away from the heads
and turn ‘‘off’’ the power of the demagnetizer when
it is about 30cm away from the heads.