User manual SONY CDX-L490B

[. . . ] When your car has a built-in FM/AM aerial in the rear/side glass, see "Notes on the control and power supply leads. " 6 To the +12 V power terminal which is energised at all times Be sure to connect the black earth lead to a metal surface of the car first. notes on the control and power supply leads · The power aerial control lead (blue) supplies +12 V DC when you turn on the tuner. [. . . ] notes on the control and power supply leads · The power aerial control lead (blue) supplies +12 V DC when you turn on the tuner. When your car has built-in FM/AM aerial in the rear/ side glass, connect the power aerial control lead (blue) or the accessory power input lead (red) to the power terminal of the existing aerial booster. Memory hold connection When the yellow power input lead is connected, power will always be supplied to the memory circuit even when the ignition key 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 to avoid its damage. Do not connect the speaker terminals to the car chassis, or connect the terminals of the right speakers with those of the left speaker. Do not connect the earth lead of this unit to the negative (­) terminal of the speaker. To avoid a malfunction, do not use the built-in speaker wires installed in your car if the unit shares a common negative (­) lead for the right and left speakers. Use only the supplied mounting hardware for a safe and secure installation. You may not be able to install this unit in some makes of Japanese cars. How to detach and attach the front panel (7) Before installing the unit, detach the front panel. Before installing the unit, remove the protection collar 5 and the bracket 1 from the unit. Press (OPEN), then slide the front panel to the right side, and pull out the left side. 1 Insert both release keys 6 together between the unit and the bracket 1 until they click. Place the hole A in the front panel onto the spindle B on the unit as illustrated, then push the left side in. Warning when installing in a car without ACC (accessory) position on the ignition key switch After tuning off the ignition, be sure to press and hold (OFF) on the unit until the clock display disppears. [. . . ] 1 Insert both release keys 6 together between the unit and the bracket 1 until they click. Place the hole A in the front panel onto the spindle B on the unit as illustrated, then push the left side in. Warning when installing in a car without ACC (accessory) position on the ignition key switch After tuning off the ignition, be sure to press and hold (OFF) on the unit until the clock display disppears. [. . . ]