User manual YAMAHA MX-D1

[. . . ] · Containers with liquid in them, as they may fall and liquid may cause electrical shock to the user and/or damage to this unit. · Do not cover the top panel of this unit with a newspaper, tablecloth, curtain, etc. in order not to obstruct heat radiation. If the temperature inside this unit rises, it may cause fire, damage to this unit, and/or personal injury. [. . . ] A small amount of power is used in standby mode. When the MX-D1 is turned on, this indicator lights blue and the MX-D1 is ready for use. When the internal temperature rises, this indicator lights blue and purple alternately. If this happen, relocate this unit in a well ventilated place and turn down the volume of the pre-amplifier etc. When a fault is detected, the MX-D1's protection system activates and this indicator lights red. If this happens, set the MX-D1 to standby mode immediately and disconnect the AC power cable from the AC outlet. If the indicator continues to light red when you re-connect the AC power cable, contact the nearest Yamaha dealer. 2 SPEAKER terminals These terminals are for connecting your speakers. They provide a reliable connection even with really thick cables. Be sure to connect the left and right channels, and the speaker polarities (+/-) correctly. You can connect speakers with impedance of between 4 to 8 ohms. 6 UNBAL/BAL switch With this switch you can select the BALANCE jacks or the UNBALANCE jacks. 7 AC IN connector Connect the supplied AC power cable here. 3 BALANCE jacks If your source component has balanced XLR output jacks, connect them to these jacks using XLR cables. 4 MUTE button You can temporarily mute the output from the MX-D1 by holding down this button. If you need to change any input connections while the MX-D1 is still on, hold down this button while you do it. This will protect your speakers against possible damage due to sudden loud noises, thumps, and clicks. 8 RS-232C terminal 9 AMP ID switch 0 CONTROL IN jack q CONTROL OUT jack w POWER/THROUGH switch These are for control expansion. Consult your dealer for details. e POWER switch (Australia, U. K. , Europe, China and Korea models) Normally, set this switch to the ON position to use the MX-D1. To cut off the power supply from the AC line, set this switch to the OFF position. 5 UNBALANCE jacks If your source component has unbalanced RCA jacks (labeled "AUDIO OUTPUT" on the YPC-1), connect them to these jacks using an audio pin cable. English 3 CONNECTIONS · Pre-amplifier · PA equipment · CD player with a volume control Unbalanced RCA output Balanced XLR output etc. (U. S. A. and Canada models) To AC outlet Audio output Speaker (R) When connecting the YPC-1 Speaker (L) Be sure to attach the clamp filters to the power cable and the audio pin cable as illustrated below. 1. Fix the cable and the clamp filter by tightening the fixing tie. Audio pin cable (U. S. A. and Canada models) 4 Connecting Your Speakers Speaker cables typically consist of two insulated conductors. To ensure that the speakers are connected with the correct polarity (+/-), the insulation on one of the conductors is a different color or is marked with a line. Connecting Your Source Components Connecting to the BALANCE jacks Connect your component with the balanced XLR output jacks. The pin assignments for these jacks are shown below. Refer to the owner's manual of your component and verify that its output jacks are compatible with the pin assignments for these jacks. 2: hot 1 15mm 2 Red: + (positive) White: - (negative) 3 5 4 3: cold 1: ground 1. Strip about 15 mm (5/8") of insulation from the ends of the speaker cables. Twist the bare wires tightly to prevent a short circuit. [. . . ] more than 100 dB Modulation. . . . . . . . . . . . . . . . . . . . . . PWM (Pulse Width Modulation) Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SEPP (Single-Ended Push-Pull) Power source. . . . . . . . . Resonant-type switching power supply (frequency: 88 kHz) Specifications are subject to change without notice. Power supply U. S. A and Canada models. . . . . . . . . . . . . . . . . . . AC 120 V, 60 Hz Australia model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]