Yamaha DXR15mkII DXR15mkII DXR12mkII DXR10mkII DXR8mkII Owners Manual - Page 7

English Controls and Functions Controls and Functions Rear panel              !  INPUT jacks These comprise a balanced XLR input jack (INPUT 1), unbalanced phones (INPUT 2) and RCA pin input jacks (INPUT 3). You can connect a mixing console or microphone to INPUT 1, a keyboard or electric-acoustic guitar to INPUT 2, and a portable audio player or CD player to INPUT 3. Signals from INPUT 1-3 are mixed inside the DXRmkII unit.  THRU jack This is a balanced XLR output jack. The INPUT 1 signal is passed through unaffected, since this is parallel-connected to the INPUT 1 (XLR) jack.  LEVEL controls For adjusting the level of each INPUT signal. If you connect a device that features a nominal output level of +4dBu (such as a mixing console), set the MIC/LINE switch () on the DXRmkII series to LINE, and adjust the LEVEL control using its 12 o'clock position as a reference.  LIMIT indicator Lights when the output limiter is active. The output limiter will operate in order to protect the speaker and amp, attenuating the output signal to the amplifier. If this indicator stays lit, lower the level of the input signal. NOTE • If the output voltage of the amplifier has exceeded the maximum value, or if excessive integral power consumption is detected, the output limiter attenuates the output signal to the amplifier. The LIMIT indicator will light when the amount of attenuation is 3dB or higher. • The integral power consumption refers to the sum of power consumption provided to the speaker driver per unit time.  SIGNAL indicator Lights when an audio input signal is detected.  PROTECTION indicator Lights when the protection system is active. The protection system will operate and the speaker output will be muted in the following situations. • If amplifier overheating is detected: • If DC output is detected: • If overcurrent is detected: • When turning the power on: The protection system will be activated to prevent noise and the indicator will light for about two seconds. The indicator turns off when the power supply has started normally. • When turning the power off: Or if the power turns off due to an unexpected error, the protection system will be activated to prevent noise, and then the power will be shut down. NOTE If the protection system has engaged after the problem was detected, waiting until the amplifier cools down or powering off and on again will return to normal operation. If the unit does not return to normal operation, please contact your Yamaha dealer.  POWER indicator Lights when the power switch () is set to on.  FRONT LED DISABLE switch Selects turning on or off the FRONT LED at the left of the unit's front grille. The LED will light when this switch is set to off (/). Turn this switch on (0) when you want to turn off the LED. NOTE The LED will light brighter than usual if the attenuation of the output limiter is 3dB or higher.  MIC/LINE switch Set this switch to MIC or LINE for INPUT 1 jack, depending on the level of the input signal. For low-level signals (such as microphones), set the switch to the MIC position. For high level signals (such as mixer), set the switch to the LINE position. DXRmkII series Owner's Manual 7