Keysight CXG, EXG, and MXG X-Series Signal Generators Service Guide 245
Baseband Generators
A7A1 Real-Time Aux. Power Supply Overview
A7A1 Real-Time Aux. Power Supply Overview
The A7A1 Real-Time Aux. Power Supply provides the A7 Real-Time BBG
assembly with the +12 volts DC power it requires to operate. The power supply
operates off the instrument AC power line voltage it gets from the A1 Power
Supply assembly auxiliary AC output.
The output of the A7A1 Real-Time Aux. Power Supply is rated to provide 5
amps of current at +12 VDC and has short-circuit overload protection.
Whenever the instrument is connected to an AC power source - whether
the instrument is turned on or not - the auxiliary AC output of the A1
Power Supply assembly will be on. NEVER plug in or remove the A7A1
Real-Time Aux. Power Supply connection to the A7A1 Power Supply when
AC power is applied to the instrument rear panel.
This also means that the A7A1 Real-Time Aux. Power Supply will have live
voltages in it and at its output whenever there is AC power applied to the
instrument rear panel. NEVER remove the cover from the A7A1 Real-Time
Aux. Power Supply or probe the inside of it with anything when AC power
is applied to the instrument rear panel.
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