11 CIRCUIT OPERATION
11.1. POWER SUPPY CIRCUIT
11.1.1. The function of the power unit are listed below
AC-DC Inverter Function This function isolates and converts the AC input voltage to DC
input and output of DC27V.
DC-DC Converter Function This function outputs DC+15V and 3.3V from the inputted
DC27V.
Battery Back Up Adaptor Function This function connects battery and service unit without battery
adaptor, only needs a cable connected to the battery and
service unit.
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KX-TEA308CE
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