Thank you for purchasing the YAMAHA MX-1000U stereo power amplifier. ABOUT THIS MANUAL To obtain the finest performance from your new power amplifier, please read this manual carefully, keeping it handy for future reference. After you know which PRECAUTIONS to take, the section CONNECTIONS will show you how to hook up the MX-1000U to your control amplifier and speakers. Operation of this power amplifier is explained under FRONT PANEL CONTROLS AND THEIR FUNCTIONS.
Read this before operating your MX-1000U. ¥ BSK OF ELECTRIC SHOCK . 00 KT OPEN. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER {OR BACK). NO USER-SERVICEABLE PARTS INSIDE.
1 5. Damage Requiring Service — The appliance should be serviced by qualified service personnel when: A, The power-supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the appliance; or C.The appliance has been exposed to rain; or D.The appliance does not appear to operate normally or exhibits a marked change in performance; or E. The appliance has been dropped, or the cabinet damaged. 16.
FEATURES B Hyperbolic Conversion Amplification Circuit B/ Advanced Power Supply Circuitry (APS) 8 Three-Pa iv Speaker Support B LCD {Lighted Crystal Display) Power Level Meters & Overdrive Protection Circuitry Hyperbolic Conversion Amplification Circuit This new kind of circuitry, developed by Yamaha, eliminates the only serious drawback of previous Class A operation amplifiers.
B POWER switch and Indicator: Pressing this switch turns power on, causing the POWER indicator to light. To turn the unit off, press again. & SPEAKERS selectors: Allow you to select any of the speaker pairs connected to the A, B and/or C terminals by pushing the appropriate switch(es} to the ON position. NOTE: if speakers are connected to terminals B, but not to terminals C, be sure to press only the B SPEAKERS selector when listening via pair B.
CONNECTIONS Make ere the left (L) and right (R} channels are connected consistently between components. MOTE: Before making or altering any of the connections described below, be sure to turn off the power of the MX-1000U. SPEAKERS B CONTROL AMPLIFIER SPEAKERS OUTLET For your convenience, this unit s equipped with an SWITCHED AC outlet on the rear panel. Another component with maximum power consumption of up to 200 watts can be connected here.
Making sure that the control amplifier is also turned off, connect the output jacks of your control amplifier to the corresponding INPUT jacks on the rear panel of this unit. Always check that a)the RCA plugs of the connecting cord are clean, b) the left and right channels of both units correspond, ¢) connections are secure, and d} both units are properly grounded. The MX-1000U can drive up o three pairs of speakers (A, B and ) at the same time.
B Heavy-gauge speaker cords CAUTION: First, unscrew and remove the plastic wire holders. Insert the When inserting the stripped ends of the speaker cords as shown stripped ends of the speaker cords Into the holders until they above, make sure at least 1/16 inch (1.6 mm) of insulation is in sic protrudes on the other side. the wire holders {i.e.
TROUBLESHOOTING Before assuming that your amplifier is faulty, check the following list. f you still have any doubts or questions, contact your nearest YAMAHA dealer. o5 No power Evan when the POWER switch is ON, @ The power cord is not plugged in securely. ® Plug in securely. No sound Is heard from the deft and/or right speaker(s}. ® The speaker cords are not properly connected. # Check speaker connections and correct them. @ Either or both LEVEL controls are sett —0dB.