Before going through the checklist, check wiring connection. If any of the problems
persist after checklist has been made, consult your nearest service dealer.
FEATURES
TROUBLE SHOOTING
MRX1
GENERAL
Power Supply Requirements
: DC 12 Volts, Negative Ground
Chassis Dimensions : 115(W) x 115 (D) x 74(H)
Tone Controls
- Bass (at 100 Hz)
: ±10 dB
- Treble (at 10 kHz)
: ±10 dB
Maximum Output Power : 4 x 40 watts
RMS continuous power : 4 x 15 W @ 4 ohm
4 x 20 W @ 2 ohm
Current Drain : 10 Ampere (max.)
RADIO FM AM
Frequency Coverage USA: 87.5 to 107.9 MHz 530 to 1710 kHz
EUR: 87.5 to 108 MHz 522 to 1620 kHz
IF
10.7 MHz 450 KHz
Sensitivity 4μV(S/N=30dB) 36dBuV(S/N=20dB)
Stereo Separation
>25dB /
Symptom
No Power
No Sound
Volume is in minimum
The fuse is blown
Replace the fuse
Adjust volume to a
desired level
Wiring is not properly
conneted
The opperation keys do
not work
The radio does not work.
The Redio Station automatic
selection does not work.
The built-in microcomputer
is not operating properly
due to noise
The antenna cable is not
connected
Insert the antenna cable
Firmly
Select station manually
The signal are too weal
Press the reset button
Check wiring connectionl
Thw car ignition switch
is not on
If the Power supply is
connected to the car
accessory circuits, but
the engine is not moving,
awitch the ignition
key to “ACC”
Cause
Solution
