37
Maintenance
Replacing the lithium battery of the
remote commander
When the battery becomes weak, the range
of the remote commander becomes shorter.
Replace the battery with a new CR2025
lithium battery. Use of any other battery
may present a risk of fire or explosion.
Notes on the lithium battery
• Keep the lithium battery out of the reach of
children. Should the battery be swallowed,
immediately consult a doctor.
• Wipe the battery with a dry cloth to assure a
good contact.
• Be sure to observe the correct polarity when
installing the battery.
• Do not hold the battery with metallic tweezers,
otherwise a short-circuit may occur.
Cleaning the connectors
The unit may not function properly if the
connectors between the unit and the front
panel are not clean. In order to prevent this,
detach the front panel (page 7) and clean the
connectors with a cotton swab. Do not apply
too much force. Otherwise, the connectors
may be damaged.
Notes
• For safety, turn off the ignition before cleaning
the connectors, and remove the key from the
ignition switch.
• Never touch the connectors directly with your
fingers or with any metal device.
Specifications
Tuner section
FM
Tuning range:
87.5 – 107.9 MHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency:
25 kHz
Usable sensitivity:
8 dBf
Selectivity:
75 dB at 400 kHz
Signal-to-noise ratio:
80 dB (stereo)
Separation:
50 dB at 1 kHz
Frequency response:
20 – 15,000 Hz
AM
Tuning range:
530 – 1,710 kHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency:
9,115 kHz or 9,125 kHz/5 kHz
Sensitivity:
26 μV
CD Player section
Signal-to-noise ratio:
120 dB
Frequency response:
10 – 20,000 Hz
Wow and flutter:
Below measurable limit
USB Player section
Interface:
USB (Full-speed)
Maximum current:
1 A
Wireless Communication
Communication System:
Bluetooth Standard version 2.1 + EDR
Output:
Bluetooth Standard Power Class 2 (Max. +4
dBm)
+ side up
WARNING
Battery may explode if mistreated.
Do not recharge, disassemble, or dispose
of in fire.
CEA2006 Standard
Power Output: 17 Watts RMS 4 at
4 Ohms < 1% THD+N
SN Ratio: 80 dBA
(reference: 1 Watt into 4 Ohms)
AUDIO POWER SPECIFICATIONS
Summary of Contents for MEX-BT31PW
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