User manual SONY CDX-GT31U

[. . . ] They are used for tuner adjustments to be made only by service technicians. Choose the installation location carefully so that the unit will not interfere with normal driving operations. Avoid installing the unit in areas subject to dust, dirt, excessive vibration, or high temperatures, such as in direct sunlight or near heater ducts. [. . . ] Use only the supplied mounting hardware for a safe and secure installation. How to detach and attach the front panel Before installing the unit, detach the front panel. Before detaching the front panel, be sure to press (OFF). Press (RELEASE), then slide the front panel a little to the left, and pull it off towards you. Attach part a of the front panel to part b of the unit as illustrated and push the left side into position until it clicks. Bend these claws outward for a tight fit, if necessary. First attach 2 to the unit, then insert the unit into 1. When the installation and connections are complete, be sure to press the reset button with a ballpoint pen, etc. This unit is designed for negative earth 12 V DC operation only. Memory hold connection When the yellow power input lead is connected, power will always be supplied to the memory circuit even when the ignition switch is turned off. notes on speaker connection · Before connecting the speakers, turn the unit off. Use speakers with an impedance of 4 to 8 ohms, and with adequate power handling capacities. Do not connect the terminals of the speaker system to the car chassis, and do not connect the terminals of the right speaker with those of the left speaker. Do not connect any active speakers (with built-in amplifiers) to the speaker terminals of the unit. Doing so may damage the active speakers. Be sure to connect passive speakers to these terminals. *1 Note for the aerial connecting If your car aerial is an ISO (International Organization for Standardization) type, use the supplied adapter 7 to connect it. First connect the car aerial to the supplied adapter, then connect it to the aerial jack of the master unit. [. . . ] First connect the car aerial to the supplied adapter, then connect it to the aerial jack of the master unit. Anslut först antennen till medföljande adapter och därefter till antennuttaget på huvudenheten. Auxiliary power connectors may vary depending on the car. [. . . ]