Instruction/ maintenance manual of the product 150 Yamaha
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POWER AMPLIFIER XH150 Owner’s Manual E POWER POWER AMPLIFIER XH SERIES POWER SIGNAL CLIP SIGNAL CLIP PROTECTION CH A CH B ON OFF.
2 Introduction Thank you for purchasing a Yamaha XH150 power amplifier. The development of the XH150 was enriched by Yamaha’s wealth of experience in building PA equipment and its tradition of precision circuit design technology.
3 P recautions • 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.
4 C ontrols and F unctions ■ F r ont P anel PO WER PO WER SIGNAL CLIP SIGNAL CLIP PRO TECTION CH A CH B ON OFF 3 4 2 1 1 POWER switch and indicator This is the main POWER switch. Press to power ON the amplifier. Press again to power OFF. The POWER indicator lights up when the amplifier is powered ON.
5 ■ Rear P anel FIL TER CHANNEL B CHANNEL A INPUT CHANNEL B CHANNEL A INPUT CHANNEL B CHANNEL A SPEAKERS CHANNEL B 70V = 32 Ω /CHANNEL 100V = 64 Ω /CHANNEL CHANNEL A G G OUTPUT VOL T AGE CHANNEL.
6 ■ Connecting Speakers The XH150 series enables you to connect multiple high-impedance speakers in parallel that support 70 V or 100 V line output. The number of speakers that can be connected varies depending on the speakers ’ rated input. You can connect speakers with a total rated input per channel of up to 150 W.
7 You can also connect multiple speakers with a different rated input to a single channel. For example, you can connect ten speakers with a rated input of 5 W and ten speakers with a rated input of 10.
8 Caution for Connection 1. Turn off the POWER switch. 2. Remove the cover attachment screws and remove the protective cover from the speaker terminals.
9 Rack Mounting ■ Mounting in an EIA standar d r ack If multiple high-power 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.
10 Specifications ■ Gener al Specifications Power Output Level (Rated Power) 150 W + 150 W 20 Hz~20 kHz, THD+N= 0.1% R L = 64 Ω /100 V, R L = 32 Ω /70 V Power Bandwidth Half Power 10 Hz~40 kHz (THD+N= 0.1%) Total Harmonic Distortion (THD+N) 20 Hz~20 kHz, Half Power 0.
11 ■ Block Diagr am Amp VOLT AG E OUTPUT 10kHz 5kHz 80Hz 40Hz 40Hz 80Hz 5kHz 10kHz 100V 70V CLIP SIGNAL INV SPEAKERS CHANNEL B CHANNEL A OFF HPF LOW CUT OFF LPF HIGH CUT HIGH CUT LPF OFF LOW CUT HPF.
12 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 c a se. Protection Circuit Remedy Probable Cause Indicator CLIP indicator lights.
YAMAHA CORPORATION V294640 R2 1 IP 16 Pro Audio Division, #18/3 P .O. Box 3, Hamamatsu, 430-8651, Japan NP Printed in Taiwan.
An important point after buying a device Yamaha 150 (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 150 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 150 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Yamaha 150 you will learn all the available features of the product, as well as information on its operation. The information that you get Yamaha 150 will certainly help you make a decision on the purchase.
If you already are a holder of Yamaha 150, 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 150.
However, one of the most important roles played by the user manual is to help in solving problems with Yamaha 150. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Yamaha 150 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
