Yamaha XP7000 Owner's Manual - Page 6

Controls and Functions ■ Front Panel 2 4 7 1 3 1 POWER switch and indicator Press this to turn the power on or off. The POWER/ STANDBY indicator lights up in green when the power is ON. If the amplifier has been set to STANDBY mode, the indicator is lit in orange. 2 TEMP indicator Lights up red if the heat sink temperature exceeds 85°C (185°F). 3 PROTECTION indicator When the protection system is active, the PROTECT indicator light up in red and the speakers are automatically disconnected from the amplifier's outputs. The protection system activates in the following situations: When the amplifier is turned on The protection system activates for approximately three seconds when the amplifier is turned on. After three seconds, the protection system deactivates automatically and the amplifier is ready for normal operation. If a DC voltage is detected at the amplifier's outputs XP7000/5000: Power shut down and the indicator is not lit. XP3500/2500/1000: The protection system is active. Once the DC voltage problem is corrected, the protection system deactivates automatically and the amplifier is ready for normal operation. If the amplifier overheats When overheating occurs, the PROTECT/MUTE indicator lights. You should immediately turn off the amplifier and allow it time to cool down. See the Precautions section of this Owner's Manual for ways to prevent the amplifier from overheating. 4 CLIP indicator Lights up red when the output signal distortion on the corresponding channel rises above 1% - indicating that "clipping" has occurred bacause the signal level is too high. 56 7 * The illustration shows model XP7000. 5 SIGNAL indicator Lights up green when the corresponding channel's output level exceeds 2 Vrms (equivalent to 1/2 W into an 8 Ω load, or 1 W into a 4 Ω load). 6 Volume control knobs Each control knob adjusts the volume of the corresponding channel, in 31 steps from -∞ dB to 0 dB. * If you wish to lock in the knob settings, you can fasten the supplied security cover over the knobs so that the settings will not be disturbed. ● How to install the security cover (1) Use the supplied hex wrench to remove the four attachment screws from the amplifier. (2) Adjust the security cover to the position of screw holes. Fasten it into place using the same screws. 7 Air intakes The amplifier uses forced-air cooling. The cooling fans draw air in from the front and exhaust it through the rear. Please be sure that you do not block the air intakes or exhaust vents. * The fans do not come on at initial power-on, but will switch on automatically when the temperature of the heat sink rises above 50°C (122°F). The fan speed will then vary automatically as the temperature changes. Front Rear 6 XP7000/XP5000/XP3500/XP2500/XP1000 Owner's Manual Air intake Air exhaust