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MSR4425
Troubleshooting
Problem
Cause
No power.
Vehicle ignition switch is not
on.
The fuse is blown.
Disc cannot be loaded
There is a disc already inside
or ejected.
the unit.
Inserting disc in wrong
direction.
Disc is defective or dirty.
Excessive temperature.
Condensation has collected.
No sound.
Volume turned down too low.
Wiring not connected properly. Check wiring connections.
Sound skips or sound
Installation angle exceeds 30
quality is poor.
degrees.
Disc is defective or dirty.
Operation keys do not
Microcomputer is not operating
work.
properly due to noise.
Radio does not work
Antenna cable not connected.
Automatic station
Radio signals are too weak.
selection does not work.
Specifications
General
Power Supply Requirements . . . . . . . . . . . . . . . . . . . . . . . . . DC 12 Volts, Negative Ground
Chassis Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 (W) x 178 (D) x 50 (H)
Loading Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -8 ohms per channel
Tone Controls . . . . . . . . . . . . . . . . . . . Bass (at 100 Hz), ±10 dB; Treble (at 10 kHz), ±10 dB
Maximum Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4x40W/4X45W/4X50W watts
Current Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Ampere (max.)
CD Player
Signal to Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . More than 60 dB
Channel Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . More than 50 dB
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Hz – 18 kHz
FM Tuner
Tuning range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87.5-108.0
FM mono sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5uV
Stereo separation @ 1 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >25dB
Corrective Action
If the power supply is connected to
the vehicle accessory circuits but
the engine is not moving, switch the
ignition key to "ACC".
Replace the fuse.
Remove the current disc and insert
the new one.
Insert disc with label facing up.
Clean disc or try playing another
one.
Cool vehicle to a normal
temperature.
Turn off for an hour, then try again.
Adjust volume until sound is heard.
Adjust the installation angle to less
than 30 degrees.
Clean disc or try playing another
one.
Press RESET.
Insert antenna cable firmly.
Select a station manually.
AM Tuner
Tuning range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .522-1710
Amplifier
Total system power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200W (50W x 4)
Specifications subject to change without notice.
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