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Yamaha PA24 manual

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Table of contents for the manual

  • Page 1

    EN PO WER AMPLIFIER Owner’ s Manual[...]

  • Page 2

    The abov e warning is located on the top of the unit. Explanation of Graphical Symbols The lightning fl ash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’ s enclosure that may be of suf fi cient magnitude to constitute a risk of electr[...]

  • Page 3

    (5)-2 1/2 PRECAUTIONS PLEASE READ CAREFULL Y BEFORE PROCEEDING * Please keep this man ual in a saf e place f or future reference . W ARNING Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical shock, short-circuiting, damages, fire or other hazards. These precautions include, but[...]

  • Page 4

    (5)-2 2/2 • Before connecting the device to other devices, turn off the power for all devices. Before turning the power on or off for all devices, set all volume levels to minimum. • Use only speaker cables for connecting speakers to the speaker jacks. Use of other types of cables may result in fire. • Be sure to connect to a properly ground[...]

  • Page 5

    5 Introduction Thank you for pur chasing a Y amaha PC9501N, PC6501N, PC4801N, PC3301N, or PC2001N Series P ower Amplifier . The PC Series of power amplifiers was de veloped fr om Y amaha’ s wealth of experience in b uilding P A equipment and its tradition of car eful attention to every detail of cir cuit design. These power amplifier s featur [...]

  • Page 6

    6 Controls and Functions ■ Fr ont P anel 1 PO WER/ST AND-BY switch and indicator This turns the po wer of the ampli fi er on/off. When you press the switch to turn on the po wer , the indicator will light green. If the ampli fi er is connected to an amp control de vice A CD1 or A CU16-C and the ampli fi er has been commanded to enter ST AND-BY[...]

  • Page 7

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

  • Page 8

    8 ■ Speaker connections Speakers can be connected to the ampli fi er as sho wn belo w . Note that speaker impedance will v ary according to the connection method and the number of speakers. Please be sure that your speaker’ s impedance is not less than the rele vant minimum v alue indicated below . Connection con fi gurations f or STEREO and [...]

  • Page 9

    9 Connection ■ Using a Eur oblock connector 1. If the wire insertion ports are closed, turn the scre ws on top of the connector counterclockwise to open the ports. 2. Insert the wires into the appropriate ports, follo wing the indication of the pole on the input terminal, turn the scre ws on top of the connector clockwise to fi x the wires. 3. A[...]

  • Page 10

    10 Air Flow This unit uses a forced cooling system in which air comes in through the front opening and goes out the rear . Rack Mounting If multiple high-po wer amp units are mounted in a rack with poor ventilation, the heat from the amps will cause the interior of the amp to become very hot, causing the performance of the amps to be impaired. In p[...]

  • Page 11

    11 Specifications ■ Gener al Specifications 0 dB=0.775 Vrms, Half Po wer=1/2 Output Power (3 dB belo w rated power) Speci fi cations and descriptions in this o wner’ s manual are for information purposes only . Y amaha Corp. reserves the right to change or modify products or speci fi cations at any time without prior notice. Since speci fi [...]

  • Page 12

    12 ■ Block Diagr am[...]

  • Page 13

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

  • Page 14

    14 Troubleshooting The follo wing table lists the main causes of abnormal operation and the correctiv e measures required as well as the protecti ve circuit operation in each case. Current Draw PC9501N PC6501N PC4801N Indicator P ossib le Cause Remedy Protection Cir cuit CLIP indicator lights up There is a short at the ampli fi er’ s speaker out[...]

  • Page 15

    PC3301N PC2001N 1/8 po wer is typical of program material with occasional clipping. Refer to these fi gures for most applications. 1/3 po wer represents program material with extremely hea vy clipping. T est signal: Pink Noise, bandwidth limited from 22Hz to 22kHz 1W = 0.860kcal/h, 1BTU = 0.252kcal Note that Line V oltage [V] x Line Current [A] = [...]

  • Page 16

    For details of products, please contact your nearest Y amaha representativ e or the authorized distributor listed belo w . Pour plus de détails sur les produits, veuillez-v ous adresser à Y amaha ou au distributeur le plus proche de v ous fi gurant dans la liste suiv ante. Die Einzelheiten zu Produkten sind bei Ihrer unten aufgeführten Niederla[...]