Panasonic KX-TG6700BXB Service Manual page 14

Telephone equipment. expandable digital cordless answering system
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KX-TG6700BXB/KX-TGA670BXB
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: 4.5 V DCDC Converter
• IC331: 3.3 V Regulator
14

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