SoundMax SM-CMD2021, Instruction Manual, Page: 30 / 66

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Troubleshooting guide
Below is a table describing simple measures that can help you eliminate most problems likely to emerge
when this unit is in use. If below measures do not help, turn to a service center or to the nearest dealer.
Symptom Cause Solution
No power The car ignition is not on.
The fuse is blown.
If the power supply is properly connected to the
car accessory switch the ignition key to “ACC”.
Replace the fuse.
Disc cannot be loaded. Presence of disc inside the player. Remove the disc in the player then put a new
upward.
Disc cannot be read. Inserting the disc in upside down.
Compact disc is extremely dirty or
defective.
Temperature inside the car is too high.
Insert the compact disc with the label facing
upward.
Clean the disc or try to play a new one.
Cool off until the ambient temperature returns
to normal.
No sound Volume is in minimum.
Wiring is not properly connected. Adjust volume to a desired level.
Check wiring connection.
The operation keys do not
work. The built-in microcomputer is not operating
properly due to noise.
Front panel is not properly fix into its place.
Press the power button for about 10 seconds
to reset the unit
Sound skips. The installation angle is more than 30
degrees.
The disc is extremely dirty or defective.
Adjust the installation angle to less than 30
degrees.
Clean the compact disc/try to play a new one.
The radio does not work,
the radio station
automatic selection does
not work.
The antenna cable is not connected the
signals are too weak.
Insert the antenna cable firmly select a station
manually.
The display shows an error
message (ERROR 1 – 11)
one time.
Possible disc error. Reset the unit by pressing RESET hole.
Ensure the disc is inserted correctly into the slot.
Clean or change the disc.
The display shows an error
message (ERROR 1 – 11)
repeatedly.
Unit operation error. Turn to a service center.