Yamaha PM4000 Owner's Manual (image) - Page 10

stereo master output. Cue replaces the signal in the headphones and the stereo cue XLR outputs with only those sources whose CUE switches are engaged. The CUE system has input priority so that the operator may normally monitor the cue signal from the stereo bus or the group busses, and can instantly check one or more channel or aux return inputs without having to first release the bus CUE switches. This capability is great for troubleshooting, previewing a channel before applying it to the mix, or "touching up" the EQ on a channel during a performance. For use ahead of a live show, the console may be placed in solo mode. In this mode, only the input channel(s) whose CUE/SOLO switch is engaged will feed the console's outputs, and all other input channels will be muted. If the stereo input modules are used for returns, recessed switches in these modules can be set so returns will not be muted and any effects applicable to the soloed input will be heard. Annunciator lights signal the operator whether the console is in solo or cue mode, and whether any CUE or CUE/SOLO switch is engaged. Two headphone jacks enable a pair of console operators (or an engineer and producer) to work side-by side on complex projects. The PM4000 has an excellent talkback system plus a useful test oscillator. An XLR input (with phantom power) can be set to accept any microphone or line level input, and is activated with the TALKBACK switch. That signal can be slated to any of the eight group mixing busses, the eight aux send mixing busses, the two stereo aux busses, the stereo mixing bus, and to a rear panel XLR TB output. The test oscillator can be set to 100 Hz, 1 kHz or 10 kHz fixed frequencies, or can be swept from 0.2 to 2x the set frequency, and its output level is adjustable. Pink noise may be selected, too. The oscillator can be slated to the same busses as the talkback, and also has its own rear panel output connector so the signal can be routed to other equipment or other console inputs for testing. Extensive metering is provided with a total of 14 VU meters on the 24 and 32 channel versions, or 18 VU meters on the 40 and 48 channel versions (each with a peak LED). Several of these meters can be switched to monitor alternate busses, so the metering gives you a comprehensive view of signal levels in your system. PM4000 electronic performance is everything you'd expect from the people who developed the PM3000. It is even more advanced, with lower noise levels than ever. Wide headroom throughout, exceptionally low distortion, and quiet controls are the hallmark of this top quality mixing console. The specifications are honest and conservative. The performance is audibly superb. Physically, the PM4000 is as appealing as it is electronically. An all new chassis design with aircraftstyle bracing offers increased strength to sustain repeated trips on the road. A gray finish and subtly color coded controls set the backdrop for the PM4000's hundreds of illuminated switches and indicators. Multiple rear-mounted cooling fans reduce internal temperatures to prolong component life.* The highly advanced PM4000, with its many internally switchable functions, is as close to a custom console as you can get... while retaining all the value and reliability of an off-the-shelf Yamaha console. While its numerous internal and front panel functions may at first intimidate the casual console operator, the PM4000 is actually a very straightforward console to use. Anyone who has used the PM3000, or even a PM2000, should immediately feel comfortable with the PM4000. Take a while to study the panel, read the descriptions in this manual, and you'll find operating this console is very natural... and satisfying because you can make it do the job the way you need it done. *Heat is generated by electronic components, and is the enemy of them. In some segments of the. industry (such as Las Vegas showrooms), it has been customary to leave equipment switched on 24 hours. This tradition grew out of the days when vacuum tube equipment was prevalent, and vacuum tubes did last longer if they remained on rather than being switched. Solid state devices used in modern mixing consoles are less susceptible to damage from switching, but the heat build up sustained in continuous 24 hour operation will shorten component life. Therefore, it's a good idea to turn off your equipment when it is not in use (unless you are in a very humid environment where the heat of operation wards off corrosion-causing, short-circuit-promoting moisture condensation). While the PM4000 remains cooler than its predecessors, thanks to cooling fans, it remains a prudent practice to shut it off when it is not being used. Figure 1-2. PM4000-48 Rear Panel Page 1-3