Panasonic KX-TG5776S Service Manual page 14

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KX-TG5776S/KX-TG5777S/KX-TGA571S
4.5.3.
Power Supply Circuit
Function:
The power supply voltage from AC adaptor is converted to the desired voltage of each block.
Circuit Operation:
• Q300 and IC300: 4.0 V DCDC Converter
• IC331: 3.3 V Regulator
14

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