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Yamaha PC4800N manual

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Table of contents for the manual

  • Page 1

    POWER AMPLIFIER Owner’s Manual E[...]

  • Page 2

    2 WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as fol[...]

  • Page 3

    3 Pr ecautions W ARNING Installation • Connect this unit’s power cord only to an AC outlet of the type stated in this Owner’s Manual or as marked on the unit. Failure to do so is a fire and electrical shock hazard. • Do not allow water to enter this unit or allow the unit to become wet. Fire or electrical shock may result. • Do not place [...]

  • Page 4

    4 CA UTION Installation • Keep this unit away from the following locations: - Locations exposed to oil splashes or steam, such as near cooking stoves, humidifiers, etc. - Unstable surfaces, such as a wobbly table or slope. - Locations exposed to excessive heat, such as inside a car with all the windows closed, or places that receive direct sunlig[...]

  • Page 5

    5 Introduction Thank you for purchasing a Yamaha PC9500N, or PC4800N Series Power Amplifier. The PC Series of power amplifiers was developed from Yamaha’s wealth of experience in building PA equipment and its tradition of careful attention to every detail of circuit design. These power amplifiers feature high power and superb quality together wit[...]

  • Page 6

    6 C ontrols and F unctions ■ Fr ont P anel 1 POWER/STAND-BY switch and indicator This turns the power of the amplifier on/off. When you press the switch to turn on the power, the indica- tor will light green. If the amplifier is connected to an external control unit and the amplifier has been commanded to enter STAND-BY mode, this indicator will [...]

  • Page 7

    7 ■ Rear P anel 1 XLR inputs These balanced XLR-3-31 type connectors are used to connect input signals. They are wired pin 1–ground, pin 2–hot (+), and pin 3–cold (–). 1 2 3 Cold Ground Hot In Bridge mode, only the XLR input of the channel A is active. 2 MODE switch • STEREO mode Channels A and B will operate independently. • PARALLEL[...]

  • Page 8

    8 ■ Speaker connections Speakers can be connected to this amplifier in the following two ways. The speaker impedance will depend on the connection method and on the number of speakers that are connected. Refer to the following diagrams, and make sure that the speaker impedance is not less than the value prescribed for each type of connection. Con[...]

  • Page 9

    9 C onnection ■ Using a Eur oblock connector 1. If the wire insertion ports are closed, turn the screws on top of the connector counterclockwise to open the ports. 2. Insert the wires into the appropriate ports, following the indication of the pole on the input terminal, turn the screws on top of the connector clockwise to fix the wires. 3. Attac[...]

  • Page 10

    10 Air F lo w This unit uses a forced cooling system in which air comes in through the front opening and goes out the rear. 4-6.5 x 1 1 88 463 480 Unit : mm 248 4-C15 4-ø4.5 76.2 71.5 ± 0.1 71.5 ± 0.1 78 78 Fan kit PC9500N/ PC4800N PC9500N/ PC4800N Rack Mounting If multiple high-power amp units are mounted in a rack with poor ventilation, the he[...]

  • Page 11

    11 Specifications ■ Gener al Specifications PC9500N PC4800N 120 V (US)/ 240 V (A) 230 V (EU) 120 V (US)/ 240 V (A) 230 V (EU) Power Output Level (Rated Power) 8 Ω /STEREO 1000 W x 2 1050 W x 2 550 W x 2 500 W x 2 1 kHz 4 Ω /STEREO 1600 W x 2 1650 W x 2 850 W x 2 800 W x 2 THD+N= 1% 8 Ω /BRIDGE 3200 W x 1 3300 W x 1 1700 W x 1 1600 W x 1 8 ?[...]

  • Page 12

    12 ■ Block Diagr am[...]

  • Page 13

    13 ■ Dimensions Unit: mm 480 88 456 46 4 380 26 25 30 370 30 25[...]

  • Page 14

    14 T roubleshooting The following table lists the main causes of abnormal operation and the corrective measures required as well as the protective circuit operation in each case. Protection Circuit Remedy Possible Cause Indicator CLIP indicator lights up PROTECTION indicator lights up There is a short at the amplifier’s speaker outputs, the speak[...]

  • Page 15

    [...]

  • Page 16

    YAMAHA CORPORATION V853450 R 1 1 AP 16 Pro Audio & Digital Musical Instrument Division P.O. Box 3, Hamamatsu, 430-8651, Japan NP Printed in Taiwan[...]