User manual KENWOOD KAC-9202D

[. . . ] To prevent damage to the machine, take the following precautions: · Be sure the unit is connected to a 12V DC power supply with a negative ground connection. Do not open the top or bottom covers of the unit. Do not install the unit in a spot exposed to direct sunlight or excessive heat or humidity. Also avoid places with too much dust or the possibility of water splashing. [. . . ] After installing the unit, check to make sure that electrical equipment such as the brake lamps, turn signal lamps and windshield wipers operate normally. Adjust this control according to the pre-out level of the center unit connected to this amplifier. Refer to "Specifications" on the center unit's instruction manual about the pre-out level. When this switch is ON, the frequencies which are below the audible range and therefore inaudible are cut off so that the quality of the audible frequencies can be improved. This switch is used to select the operation mode of the amplifier. The amplifier can be used as a stereo amplifier. Amplifies the signal input from the left side only. Set to this position and make bridged connections to use as a high-power monaural amplifier. The filter outputs the band of higher frequencies than the frequency set with the HPF FREQUENCY control. The entire bandwidth is output without filtering. Every time the button is pressed, 7 fixed colors and the variable color change. Be sure to connect it with all the systems. Only Kenwood center unit models sold in 1999 or later with a "EXT. Also, a maximum of 3 power amplifiers can be operated at the same time. There are cases when operation may not be possible due to wiring wire type and length. The signal that's input from the line input terminal is output. Since there are large variety of settings and connections possible according to applications, read the instruction manual well to select the proper setting and connection. Remove the ignition key and disconnect the negative - terminal of the battery to prevent short circuits. Connect the power wire, power control wire and grounding wire following this order. If sound is not output normally, immediately turn power off and check connections. Be sure to turn the power off before changing the setting of any switch. If the fuse blows, check wires for shorts, then replace the fuse with one of the same rating. [. . . ] The capacitor rating should be as close as possible to 331. 25 (µF) and the coil rating should be as close as possible to 5. If you wish to bridge-connect a speaker, the speaker impedance must be no less than 4 ohms. Connecting a speaker with an impedance lower than 4 ohms may damage the unit. [. . . ]