Instruction/ maintenance manual of the product PA24 Yamaha
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EN PO WER AMPLIFIER Owner’ s Manual.
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 p.
(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.
(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.
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.
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.
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 .
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 .
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.
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.
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.
12 ■ Block Diagr am.
13 ■ Dimensions 480 88 456 46 4 380 26 25 30 370 30 25 Unit: mm.
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.
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.
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.
An important point after buying a device Yamaha PA24 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Yamaha PA24 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Yamaha PA24 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Yamaha PA24 you will learn all the available features of the product, as well as information on its operation. The information that you get Yamaha PA24 will certainly help you make a decision on the purchase.
If you already are a holder of Yamaha PA24, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Yamaha PA24.
However, one of the most important roles played by the user manual is to help in solving problems with Yamaha PA24. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Yamaha PA24 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
