User manual HALCRO LOGIC MC70

[. . . ] Owner's Manual MC70 7 Channel Power Amplifier MC50 5 Channel Power Amplifier MC30 3 Channel Power Amplifier MC20 2 Channel Power Amplifier www. halcro. com 1 Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Important Safety Information. . . . . . . . . . . . . . . . . . . 5 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Protection from fluids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Service warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] After a brief initialization sequence, as displayed on the front panel LEDs, the power LED (2) will glow red, which indicates the unit is in Standby mode. In this mode a small current is drawn from the mains supply, but the unit cannot drive the loudspeakers. o Press the Standby/On mode button (1) once to switch between Standby and On modes. In ON mode, the LEDs (3) on the front panel glow blue to show the unit is active. (When switching from Standby to On, some amplifier module LEDs may briefly flash red before operating a steady blue. This is normal operation. ) If the multi-channel power amplifier trigger (6) is connected to a control center such as the Halcro Logic SSP, it can be left in Standby mode since the control center will operate the amplifier when required. Shutting down It is safer to turn the mains power off when not using the multi channel power amplifier for extended periods. However the MC unit may be left in Standby mode for periods between active use. Select the Standby/On button to toggle between Standby and On. To turn the unit off, switch the master On/Off switch (12), and then switch off and/or disconnect from the mains at the socket outlet. The multi-channel power amplifier has a very short warm up period when turned on again. If the unit is connected via the trigger input (6) to a control center (SSP), the unit cannot be switched to Standby mode using the Standby/On button 26 27 Care and Maintenance The multi channel power amplifiers have been designed for indoor use only. Under no circumstances should the amplifier be allowed to get wet. The only maintenance required is to ensure the unit is kept clean. o Immerse the soft cloth in the bucket of water and then wring the cloth out thoroughly until the cloth is nearly dry. o Use the slightly damp cloth to clean the unit surfaces. Never clean any electrical fittings or terminals with the damp cloth. o After using the slightly damp cloth, wipe over the surfaces with a soft dry cloth. o Allow the amplifier to air for at least one hour before turning the power back on. If you are unsure about the cleaning of the amplifier and require more information, please ask your dealer or contact Halcro at: service@halcro. com Cleaning Halcro takes no responsibility for any damage caused through careless or improper cleaning techniques. WARNING: Never use flammable products when cleaning the MC20/30/50/70 as this may damage the surface finish of the product. Please read the following procedures very carefully: o Before cleaning, disconnect the unit from the mains supply. o Use a soft dry cloth to remove any dust. o Add 0. 5 fl oz (15 ml) of very mild household dishwashing detergent to a one-gallon (four-liter) bucket of tepid water. 28 29 Troubleshooting Symptom NO sound and NO lights Remedy Ensure the master switch is On and the mains cable is plugged into the multi-channel power amplifier. Ensure the mains cable is plugged into a working wall socket. (Try testing the wall socket with another appliance. ) Check the fuse. [. . . ] It is the goal of Halcro Customer Service to provide efficient and timely service to Halcro owners and to our dealers. In the event of a technical problem or failure, we will work with you and your authorized Halcro dealer to minimize down time and provide expedient service to remedy the situation. We suggest that your Halcro dealer be the first point of contact should you experience any problems. Solutions are often simple and can be handled in the field. [. . . ]