10.5. POWER SUPPLY CIRCUIT
This circuit converts the voltage supplied from PBX into the power supply voltage of +3.3V by
IC6(Switching Regulator IC).
IC10 controls the power supply circuit as below to turn IC6 on in low consumption current at
starting up.
- Input Voltage approx. 30V or less IC10-pin 1 L IC6 OFF
- Input Voltage approx. 30V or more IC10-pin 1 HiZ IC6ON
17
Содержание KX-T7630
Страница 4: ...4 ...
Страница 8: ...8 1 NO OPERATION Note Refer to 1 5 of WAVEFORM for waveform 8 2 LCD DOES NOT OPERATION 8 ...
Страница 9: ...Note Refer to 6 of WAVEFORM for waveform 8 3 HANDSET DOES NOT WORK Receive Send 9 ...
Страница 10: ...Note Refer to 7 8 of WAVEFORM for waveform 8 4 HEADSET DOES NOT WORK Receive Send Note 10 ...
Страница 27: ...13 CABINET AND ELECTRICAL PARTS LOCATION 27 ...
Страница 28: ...14 ACCESSORIES AND PACKING MATERIALS 28 ...