User manual NAD CI9060

[. . . ] Due to the high-power capability of the NAD CI-series amplifier, the power supplies are heavy and may require more than one installation person to rack-mount the amplifier. NOTE The amplifier's weight must always rest on its bottom feet when placed on to a surface. Never put the amplifier down on its rear panel, with its front panel facing up. Do not permit the air inlet and outlet grilles on the top, bottom, side, and back cover to be obstructed by papers or other materials. [. . . ] The 12V-IN TRIGGER allows you to have an external 12V signal turn on the NAD CI-series amplifier from standby. This 12V signal must be a continuous 12V signal in order to keep the amplifier in the on state. Once you remove the 12V signal the amplifier will return to standby. The 12V-OUT TRIGGER allows you to control other products with a 12V sensor, by the NAD CI-series amplifier. The 12V-OUT TRIGGER is constantly present when the NAD CI-series amplifier is in the on state, and absent when in standby or VACATION state. nOTES · Check the specifications of the trigger input terminal on the other components to ensure these are compatible with the NAD CI-series amplifiers. All 12V-TRIGGER inputs and outputs on other NAD components with a 12V-TRIGGER feature are fully compatible with the NAD CI­series amplifier's IN/OUT 12V-TRIGGER. Before making any connections to any 12V-TRIGGER input or output, make sure all components are disconnected from the AC mains. If in doubt over the connections, installation and/or operation of the IN/OUT 12V-TRIGGER connections consult your NAD dealer or sales representative. Once you turn on the amplifier via the front-panel switch, only the front-panel switch can return the amplifier to standby state. 3 The 12V-TRIGGER LED illuminates green when the amplifier switches from standby to power on state via the 12V input (refer to "RearPanel Controls and Connections": 12V-TRIGGER INPUT section). Once you turn on the amplifier via the 12V-IN TRIGGER, only the absence of the 12V can return the amplifier to standby state. 4 The SENSE LED illuminates green when the amplifier senses a signal greater than 20mV RMS on any of the amplifier inputs refer to "RearPanel Controls and Connections": SLEEP/WAKE, SENSE/DEFEAT section). Once you turn on the amplifier via the SLEEP/WAKE sense logic, only the absence of a signal to all the amplifier's inputs can return the amplifier to standby state. 5 The OMC LED illuminates amber when the amplifier senses too much input signal or the load impedance drops below 2 to 3 Ohms, in either case a potential fault condition. When the fault condition is removed, the OMC LED will turn off, and the amplifier will return to normal operation. 6 The PROTECTION LED illuminates red when the amplifier protects itself. For example, in the unlikely event of overheating, protection would be active and the protection LED would light red. The amplifier will stay in this state until one removes the fault condition. Once you remove the fault condition, the amplifier will come out of the protection state, and the amplifier will return to normal operation. RACK-MOUNT INSTALLATION Instructions for installation of the NAD CI-series amplifier are supplied with the Rack-Mounting hardware. Supplied with these instructions are 8 pieces of plastic bushings and 4 #10-32 bolts. [. . . ] Check if AC-mains cable is plugged in and power switched on Set the VACATION switch to ON Switch amplifier off via VACATION switch. Make sure ventilation slots on top, side, and back of the amplifier are not blocked. After amplifier has cooled down, switch the amplifier on Replace fuse Speaker not properly connected or damaged Input cable pulled loose or making poor contact at Flex-Pad socket Short-circuit or broken wire in a defective patch or speaker cable Speakers wired out-of-phase Check all connections both at the speakers and at the amplifier Check leads and Flex-Pad cables Switch the amplifier to VACATION mode, check and replace cables if necessary Reverse connections at the back of the suspect amplifier output Check connections to all speakers in the affected zone/room Switch off amplifier via VACATION switch and remove one at a time a pair of speaker cables from the amplifier, then switch the VACATION switch to the ON position and restore audio source. Continue this procedure until the OMC LED does not turn on. [. . . ]