User manual ELECTRO-VOICE 651C

[. . . ] When the provided plug does not fit into your outlet, consult an electrican for replacement of the absolete outlet. IMPORTANT SERVICE INSTRUCTIONS 1. Security regulations as stated in the EN 60065 (VDE 0860 / IEC 65) and the CSA E65 - 94 have to be obeyed when servicing the appliance. Use of a mains separator transformer is mandatory during maintenance while the appliance is opened, needs to be operated and is connected to the mains 3. Switch off the power before retrofitting any extensions, changing the mains voltage or the output voltage. [. . . ] Using the mains switch (1) (main switch function) on the front of the appliance, it is possible to turn the system power off completely. To prevent inadvertent erroneous switching, a cover lid can be installed with the switch being ion its ON-position. When the switch is set to OFF, all outputs are without current and the MAINS (2) and BATTERY (3) LEDs are not lit. With the mains switch being engaged, the internal 24 V power supply is provided with mains voltage. At the same time, the mains output connector on the rear of the appliance gets mains supply (max. 1 A), allowing the connection of external low-level power consumers (tape decks, etc. ). With the mains switch being engaged and when the appliance is correctly connected and the mains is present, the MAINS-LED will light. Correspondingly, the BATTERY-LED is lit when a battery power source providing 24 V is correctly connected to the BATTERY IN connectors ­ (12) and (13) ­ and with the mains switch being engaged. The output voltage of the internal power supply is present at the DIRECT OUT (9) connector. With the DPP 4004 this connector's maximum power handling capacity is 4 A; the 651C provides 12 A. The output offers internal short-circuit protection and it can be operated without load. This input can also be used to detect whether another phase failed. The corresponding jumper must be in place. When short-circuiting the contact and ground, the appliance reacts as if its own mains failed. In case external phase-monitoring is not wanted, leave this input unused. The control output (pin 4) MAINS REMOTE ON on the REMOTE socket (10) carries ground potential when the output MODULES OUT (14) is switched on and with the mains supply being constantly present. This output can be used to switch remotely controllable power amplifiers of the PROMATRIX and the DEM Series to mains supply. The control output (pin 5) BATTERY REMOTE ON on the REMOTE socket (10) carries ground potential when the output MODULES OUT (14) is switched on and with the mains supply being unstable. This output can be used to switch remotely controllable power amplifiers of the PROMATRIX and the DEM Series to battery supply. The control output (pin 6) POWER FAIL OUT on the REMOTE socket (10) signals the loss of the mains supply (main under voltage, mains failure, temperature overload with insufficient output voltage of the switch-mode power supply). An output voltage of +24 V indicates that the mains supply is present and stable. The output's internal resistance is 1 k. [. . . ] ON function of the supply output for the modules MODULE OUT through permanent contact to the negative potential. Only functions when pin 10 carries an analogous supply voltage; can be used to remotely switch the PA-system via the PROMATRIX System ON/OFF. Negative potential for the inputs 1 and 2; in case the internal supply voltage is utilized for the remote control. Control output for power amplifiers of the PROMATRIX SYSTEM without network operation and for power amplifiers of the DEM System; signals the switching-on command of the mains supply via contact to the ground potential. 2 ON/OFF (MODULES) INPUT 3 GND 4 MAINS REMOTE ON OUTPUT 5 BATTERY REMOTE ON OUTPUT Control output for power amplifiers of the PROMATRIX SYSTEM without network operation and for power amplifiers of the DEM System; signals the switching-on command of the battery supply via contact to the ground potential. [. . . ]