[. . . ] They can scratch the surface of the panel and/or cause the indicator letters to peel off. To prevent batter rise When the unit is used in the ACC ON position without turning the engine ON, it depletes the battery. Protection function There is a Protection function installed in the unit to protect the unit and speakers from various problems. (Refer to page 5) 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. [. . . ] 4 OPERATION switch This switch is used to select the operation mode of the amplifier. (Bass management system) switch Bass boost centered on the frequency set by the B. € MONO (Lch) position: 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. (Refer to page 5) • HPF (High-Pass Filter) position: The filter outputs the band of higher frequencies than the frequency set with the HPF FREQUENCY control. Switch is set on "+12dB"/ "REMOTE" the emphasized center frequency is adjusted. 7 V-COLOR (Variable color) button Select the ON color for the indicator. Every time the button is pressed, 7 fixed colors and the variable color change. € LPF (Low-Pass Filter) position: The filter outputs the band of lower frequencies than the frequency set with the LPF FREQUENCY control. The speaker output is automatically turned monaural (L+R) and the bass boost function is activated. 4 English Removing the cover Hexagon Wrench Tighten Loosen 0 ■ Controlling the B. Switch is set in the remote position, the bass boost amount and frequency offset can be controlled from the center unit. – Indicator 0 You are notified of the unit’s condition and malfunction (Protection function) by the indicator. When operation is normal NOTE • Bass boost Center unit display "Flat"/ "OFF"/ "1" "+6"/ "1"/ "2" "+12"/ "2"/ "3" "+18"/ "3"/ "4" Center unit display "Normal" Setting Bass boost OFF (Flat) Bass boost +6 dB Bass boost +12 dB Bass boost +18 dB The color you want can be selected with the variable color button. € The color blinks blue – When during operation – When the center unit/B. When the battery wire is too small or too long and can’t supply enough current. "Low" NOTE For the center unit control method and setting display, refer to the Instruction Manual for the center unit. There may be cases when the center unit can’t set the "Bass boost +18dB" or "Frequency Offset". € The color blinks purple When the unit has failed and direct current voltage is generated to the speaker’s output. If the indicator doesn’t quit blinking, contact your Kenwood dealer. • The color blinks green – When the speaker cord is shorted. Fuse (30 A × 2) @ Battery terminal # Ground terminal % Speaker output terminals • Stereo Connections: When you wish to use the unit as a stereo amplifier, stereo connections are used. [. . . ] The protective fuse should be the same capacity as the unit’s fuse capacity or somewhat larger. € Ensure that the withstand voltage and current ratings of the capacitors (C) and coils (L) are sufficient. English 11 Troubleshooting Guide What might appear to be a malfunction in your unit may just be the result of slight misoperation or miswiring. Before calling service, first check the following table for possible problems. [. . . ]