User manual SONY XM-7547

[. . . ] The color will change from green to amber when the voltage going out to the Speaker terminal or the Pin Jack is too high. THERMAL lights up in green during normal operation. The color will change from green to amber when the temperature rises to an unsafe level. The color will return to green when the temperature returns to normal. [. . . ] the supplied mounting screws are 15 mm long. Therefore, make sure that the mounting board is thicker than 15 mm. Make sure the speaker cord and ground lead are securely connected. The ground lead connection from the car audio is loose. Make sure to place the unit in a well ventilated location. The power connecting leads are installed too close to the RCA pin cords. The ground lead is not securely connected. One or more of the switches is settled between setting; set the switch properly. the FILTER select switch is set to the "LPF" position. One or more of the switches is settled between settings (i. Note Don't install the unit too close to anything that would obstruct the cooling fan. After all of the adjustment controls and switches are set and all of the cords are connected completely, attach the terminal cover to this unit with the supplied hexagonal wrench 3 mm ( 1/8 in. Note Install this unit on the mounting board first, and then attach the terminal cover to this unit. This unit is designed for negative ground 12 V DC operation only. Before making any connections, disconnect the ground terminal of the car battery to avoid short circuits. Be sure to use speakers with an adequate power rating. If you use small capacity speakers, they may be damaged. Do not connect the # terminal of the speaker system to the car chassis, and do not connect the # terminal of the right speaker with that of the left speaker. Install the input and output cords away from the power supply lead as running them close together can generate some interference noise. Therefore, it may not perform to its full potential if used with the speaker cords supplied with the car. If your car is equipped with a computer system for navigation or some other purpose, do not remove the ground wire from the car battery. If you disconnect the wire, the computer memory may be erased. [. . . ] Connect the +12 V power supply lead only after all the other leads have been connected. Be sure to connect the ground lead of the unit securely to a metal point of the car. A loose connection may cause a malfunction of the amplifier. Be sure to connect the remote control lead of the car audio to the remote terminal. [. . . ]