SoundMax SM-CMD2039, Instruction Manual, Page: 3 / 66

3
Important safeguards
Read carefully through this manual to familiarize yourself with this high-quality sound system.
The beginning of operation is the moment of the unit installation. Before use the device in winter it is
recommended to heat up the passenger compartment during 20 seconds or to the operation
temperature.
Use the unit with the temperature that goes beyond the operation temperature greatly decreases the
operation resource of the screen and other components of device and can result an outage.
Disconnect the vehicle's negative battery terminal while mounting and connecting the unit.
When replacing the fuse, be sure to use one with an identical amperage rating. Using a fuse with a
higher amperage rating may cause serious damage to the unit.
Do not attempt to disassemble the unit. Laser beams from the optical pickup are dangerous to the eyes.
Make sure that pins or other foreign objects do not get inside the unit; they may cause malfunctions, or
create safety hazards such as electrical shock or laser beam exposure.
Do not use the unit in places where it can be exposed to water, moisture and dust.
Do not open covers and do not repair yourself. Consult the dealer or an experienced technician for help.
Make sure you disconnect the power supply and aerial if you will not be using the system for a long
period or during a thunderstorm.
Make sure you disconnect the power supply if the system appears to be working incorrectly, is making
an unusual sound, has a strange smell, has smoke emitting from it or liquids have got inside it. Have a
qualified technician check the system.
The unit is designed for negative terminal of the battery, which is connected to the vehicle metal. Please
confirm it before installation.
Do not allow the speaker wires to be shorted together when the unit is switched on. Otherwise it may
overload or burn out the power amplifier.