302. Functions in each area2-2. Mainframe2-2-1. Front panelPower supply 1 Power supply 2POWER1POWER1ALARM1OFFPOWER2 ONOFF ONPOWER2ALARM2Multi-format Live Switcher AV-HS450 Power switch [POWER1, POWER2]These are used to turn the power on and off.As a standard feature, this mainframe has a redundant power supply system.To turn off the power, set the power switches of both system 1 (POWER1) and system 2 (POWER2) to OFF. Power indicator [POWER1, POWER2]This indicator lights when the power switch () is set to ON while power is supplied to the AC power inputsocket.It goes off when the power switch () is set to OFF. Alarm indicator [ALARM1, ALARM2]These light when the mainframe’s cooling fan has stopped running or when there is a problem (voltage drop)in the power supply. When this occurs, an alarm message is displayed on the control panel’s LCD and on theOSD screen of the external monitor.During the occurrence of an alarm, details of the trouble can be checked using the SYSTEM/Alarm menu.The alarm information can be output to an external device from the TALLY/GPI connector () of the mainframe. For details, refer to “5-8-2. Alarm message”.If the alarm goes off, stop using the unit immediately and be sure to contact your dealer.Continuing to use the unit even after the alarm goes off could damage it.
