6
1. Connecting Other Devices
Unplug HD53N’s AC power cord from the outlet before connecting or disconnecting other
devices. Exercise caution when handling the AC power cord. When disconnecting the AC cord
from a socket, make sure you pull the plug, and not the cord itself.
2. Turning Power ON/OFF
Your system components should be turned ON/OFF in the following order to avoid generating
noise from your headphones and speakers, and damaging the headphones and speakers
themselves or other devices:
Turning power ON: Turn HD53N’s volume to the minimum and power ON at last, after turning
ON the DA converter or CD-player connected to HD53N.
Turning power OFF: Turn HD53N’s volume to the minimum and power OFF fi rst, before turning
OFF connected units.
3. Handle with Care
Avoid exerting excessive force on the cabinet, the volume and selector knobs and push
switches of HD53N.
4. Avoid Electrostatic Discharge
Like all complex electronic devices, HD53N is sensitive to electrostatic discharge. A discharge
may cause malfunction or damage.
5. Installation
Use of an audio rack is recommended to maximize the sound quality and performance of
HD53N. Installation and use of HD53N in the locations described below may cause deterioration
in sound quality or malfunctions.
•
Locations exposed to direct sunlight, such as windowsills, and other exceptionally warm
locations, such as near heating appliances (surrounding temperature higher than 35
℃
), or
exceptionally cold locations (surrounding temperature lower than 5
℃
), may prevent HD53N
from functioning adequately.
•
Damp locations exceeding 90% humidity may cause HD53N’s metal parts to rust, causing the
unit to malfunction.
•
Dusty locations may cause HD53N to malfunction. The accumulation of dust outside and inside
the unit may lower the performance of music signal amplification. It may also cause contact
failure of the switches and/or noise.
•
Otherwise, avoid installing HD53N close to other transformers and electrical motors, so as
to prevent the pickup of induction hum. Also, avoid mounting HD53N on surface that may be
affected by vibration.
6. Avoid Lightning Strikes Damages
Disconnect the AC power cord from the AC outlet when there is a thunderstorm in your vicinity.
7. Condensation
When HD53N has been brought into a warm room when the exterior temperature is cold, or
when the room temperature rises sharply from using a heater, condensation may occur from
both inside and outside the unit, hampering its performance. If this happens, leave HD53N
unused in the room for 1 to 2 hours (depending on the amount of condensation), so as to bring
the unit’s temperature closer to the room temperature. The condensation should go away
gradually.
Handling Precautions
Summary of Contents for HD53N
Page 1: ...Owner s Manual...
