User manual YAMAHA FC900

[. . . ] Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. [. . . ] To ensure that heat does not build up inside this device, you must observe the following conditions when mounting it in a rack. · If you mount this device in a rack together with heat-generating devices such as power amps made by other companies, you must leave 1U or more space between this device and other devices. You should also install a ventilation panel in this space or leave it open to ensure adequate ventilation. · Leave the back of the rack open, and allow 10 cm or more distance between the rack and the wall or ceiling to ensure adequate ventilation. If you are unable to leave the back of the rack open, you must install a commercially available fan kit or other forced air circulating system to the rack. If you have installed a fan kit, there may be cases in which closing the back of the rack will provide better cooling. For details, refer to the instructions that came with the rack system or fan kit. IPA8200 Owner's Manual 5 Contents Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The indicator lights green when the power is on. w PROTECT indicator When the protection system is active, the indicator lights red. When this is lit, the amplifier or power supply is automatically shut down, and no sound will be output from the speakers. · Do not connect the pin marked NC located in the center of the bottom row of the barrier strip connectors. Caution regarding output measurement CAUTION t HPF switch Turns the high pass filter (20 Hz or 55 Hz) on/off. If this is set to 20 Hz or 55 Hz, the frequency components below that frequency will be cut by a 12 dB/oct. y Ground screw Hum and interference may be reduced in some cases by connecting the screw to an ground or to the chassis of the mixer, preamp, or other device in your system. u AC inlet Connect this to the socket end of the included AC power cable . Connect the plug end of the AC power cable to an AC outlet of the correct voltage. · If this device is to be rack mounted and transported frequently, be sure to support the rear end of the unit with mounting hardware that matches the size of the rack used. · To make the load to the power supply consistent and in particular to improve frequency response in the low range at very high volumes, channels B/D/F/H have been designed so that the signal is reversed in polarity just before the power amp stage and then output to the "-" pins of the corresponding SPEAKER terminals. (See the Block Diagram. ) If you measure the output, we recommend that you use an instrument that is compatible with balanced input. If you have an instrument that is compatible only with unbalanced input, use the "+" pin of channels B/D/F/H as ground, and apply a probe to the "-" pin and measure the output carefully. Using the probe improperly may cause the amplifier or instrument to malfunction. CAUTION 8 IPA8200 Owner's Manual Mode settings Speakers can be connected to the IPA8200 using the following three mode settings. The total load impedance of the speakers that can be connected will depend on the mode setting. Do not use a setup that has a lower impedance than the minimum values shown below. STEREO mode If the rear panel MODE switch is set to STEREO, each channel will operate independently. You can use the front panel attenuators to adjust the attenuation for each channel independently. BRIDGE mode If the rear panel MODE switch is set to BRIDGE, the amplifiers will be bridged between adjacent pairs of channels (AB, C-D, E-F, G-H), and the IPA8200 will operate as a highpower amplifier. [. . . ] Se Lei desidera disfarsi di questi articoli, prego contatti le Sue autorità locali o il rivenditore e richieda la corretta modalità di smaltimento. 62 IPA8200 Owner's Manual For details of products, please contact your nearest Yamaha representative or the authorized distributor listed below. Die Einzelheiten zu Produkten sind bei Ihrer unten aufgeführten Niederlassung und bei Yamaha Vertragshändlern in den jeweiligen Bestimmungsländern erhältlich. Pour plus de détails sur les produits, veuillez-vous adresser à Yamaha ou au distributeur le plus proche de vous figurant dans la liste suivante. Para detalles sobre productos, contacte su tienda Yamaha más cercana o el distribuidor autorizado que se lista debajo. Per ulteriori dettagli sui prodotti, rivolgersi al più vicino rappresentante Yamaha oppure a uno dei distributori autorizzati elencati di seguito. NORTH AMERICA CANADA Yamaha Canada Music Ltd. [. . . ]