AM700 Audio Measurement Set Service Manual
2–1
Operating Information
This section provides the installation information needed for the AM700 Audio
Measurement Set and the basic operating information that a service person might
need to check for proper operations of the instrument.
Power Requirements and Power On
The AM700 operates with line frequencies of 50 or 60 Hz over two line voltage
ranges. The nominal setting of the low voltage range is 115 VAC. The nominal
setting of the high voltage range is 230 VAC. The AM700 power requirement is
185 watts or 230 volt-amperes at maximum power consumption.
There are two power switches on the AM700. They are the main power switch, a
push button switch on the rear panel above the power cord receptacle, and the
Stby/On button on the front panel. Both must be on to operate the instrument.
WARNING. Dangerous voltages are present within the Power Supply module
when the rear-panel power switch is on, regardless of the position of the
front-panel power switch. Do not operate the AM700 with any covers removed.
Refer all servicing of the instrument to a qualified service person.
Figure 2–1: Rear panel fuse, power connector, On/Off Switch, and line selector