MB QUART MDR2.0 - SPECIFICATIONS; General Specifications; Radio Specifications; TROUBLESHOOTING

SPECIFICATIONS
12
GENERAL
Power Supply Requirements: DC 12 Volts, Negative Ground
Current Drain: 10 Ampere (max.)
Maximum Output Power: 4 x 16 watts into 4 Ohms @ 14.4V DC
Preamp Output Voltage: 5.0V (with AUX, USB, or AM/FM Source)
Chassis Dimensions 6-3/4” (W) x 2” (H) x 3-3/4” (D)
*Note: Installation depth requires 3-3/4” minimum
Tone Controls
- Bass (at 100 Hz) : ±10 dB
- Treble (at 10 kHz) : ±10 dB
RADIO FM AM
Frequency Coverage 87.5 to 108 MHz 520 to 1710 kHz
IF 10.7 MHz 450 KHz
Sensitivity 4μV(S/N=30dB) 36dBuV(S/N=20dB)
Stereo Separation >25dB N/A (AM is Mono)
TROUBLESHOOTING
Symptom
Cause
Solution
No power.
The car ignition switch is
not on.
If the power supply is
connected to the car accessory
circuits, but the engine is not
moving, switch the ignition key
to “ACC”.
The fuse is blown.
Replace the fuse.
No sound.
Volume is in minimum
Adjust volume to a desired level.
Wiring is not properly
connected.
Check wiring connection.
The operation
keys do not
work.
The built-in microcomputer
is not operating properly
due to noise.
Press the reset button.
The radio does
not Work. The
radio station
automatic
selection does
not work.
The antenna cable is not
connected.
Insert the antenna cable firmly.
The signals are too weak.
Select a station manually.