Panasonic KX-TSC10HGW Service Manual page 19

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11.4. Initializing Circuit
11.4.1. Function:
This circuit is used to initialize the CPU when the batteries are installed.
11.4.2. Circuit operation:
When the batteries are inserted into the unit, the voltage is regulated by IC302 and power is
supplied to the CPU.
The unit starts operating soon after the voltage goes beyond the point A in the voltage diagram.
19

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