SoundMax SM-CCR3041, Инструкция по эксплуатации

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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.
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.