Sondpex RUSX112 - Specification; Troubleshooting

WARNING: THE UNIT HAS 2 SEPARATE AMPLIFICATION STEPS.
WHEN TWO SPEAKERS ARE CONNECTED DO NOT CONNECT
TOGETHER THE WIRES BUT CHOOSE FRONT OR REAR.
WARNING: THE RED WIRE MUST BE CONNECTED BY CAR
IGNITION KEY IN ORDER TO AVOID THAT CAR BATTERY
BECOMES WEAK WHEN THE CAR WILL BE NOT USED FOR
LONG PERIOD.
7. SPECIFICATION
GENERAL
Power Supply Voltage 12 Volts DC Negative Ground
Maximum Power 4×25 Watts
Load impedance 4-8Ω per channel
Current Drain 10 Ampere (max)
Dimensions Chassis 50mm×178mm×150mm
Tone Controls
-Bass (at 100 Hz) ±10 Db
-Treble (at 10 KHz) ±10 Db
RADIO FM
Frequency Coverage 87.5 to 107. 9MHz
I.F. 10.7 MHz
Sensitivity (S/N=30 Db) 5μV
Stereo Separation >25dB
Image Rejection >45dB
8. TROUBLE SHOOTING
Before going through the check list, check wiring connection, if any of the
problems persist after check list had been made, consult your nearest
service dealer.
Symptom
Cause
Solution
No power.
The car ignition switch
is not ON
If the power supply is
properly connected to the
car accessory terminal
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 mot properly
connected.
Check the wiring
connection.
Sound skips
The installation angle
is not more than 30
degrees.
Adjust the installation
angle to less than 30
degrees.
.
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.
CAUTION
Metal parts of this unit (especially on the back)
become quite hot during operation, to be careful to
avoid touching parts other than the handle
immediately after removing the unit.
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