Panasonic KX-TG5776S Service Manual page 30

KX-TG5776S/KX-TG5777S/KX-TGA571S
4.9.1. Power Supply Circuit
As indicated below, the various voltages are supplied to each block.
V_PA, about 4.0 V at Base Unit or 3.1 V at Handset, is supplied to the Power amplifier in 5.8 GHz PA circuit.
IC841 is 3.0 V (Base Unit) or 2.8 V (Handset) Regulators, and IC761 is a 2.5 V Regulator. They output Vcc_5.8 GHz, and Vcc_2.4
GHz respectively by order of RADIO_EN signal or CON_EN signal. V_RF is approximately 4.0 V (Base Unit) or 3.1 V (Handset).
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