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12
KX-TCA275CE
4.2.6.
RX Audio Path
Receiver
Burst data is input from RF Module to pin 26 (RXDA) of IC3.
In IC3, the burst data is converted to ADPCM, then to analog signal, and sent from pin 110 (LSR+) and pin 111 (LSR-) to the
receiver.
Headset
When the headset is inserted, a signal to the receiver is cut off and audio signal from pin 110 (LSR+) of IC3 is input to the head-
set.
Speakerphone
In Speakerphone mode, the BBIC (IC3) makes pin 1 of IC5 from Low to High.
And an audio signal from pin 112 (LSR_HS) of IC3 is sent to a monitor speaker through speaker Amplifier IC (IC5).
Содержание KX-TCA275CE
Страница 15: ...15 KX TCA275CE 5 Location of Controls and Components 5 1 Handset ...
Страница 16: ...16 KX TCA275CE ...
Страница 19: ...19 KX TCA275CE 7 Operating Instructions 7 1 Soft Keys ...
Страница 20: ...20 KX TCA275CE ...
Страница 21: ...21 KX TCA275CE 7 2 Handset Setting Menu Layout ...
Страница 23: ...23 KX TCA275CE 7 5 DISPLAY ...
Страница 25: ...25 KX TCA275CE 7 7 Function Keys ...
Страница 26: ...26 KX TCA275CE 7 8 Flexible Keys ...
Страница 27: ...27 KX TCA275CE 7 9 Caller ID ...
Страница 28: ...28 KX TCA275CE 7 10 Character Mode Table ...
Страница 31: ...31 KX TCA275CE Charger Unit NO Display On the LCD ...
Страница 32: ...32 KX TCA275CE 5V Circuit 8 2 Battery Charge Trouble Handset 8 2 1 Charge On ...
Страница 33: ...33 KX TCA275CE 8 2 2 Charge Off ...
Страница 34: ...34 KX TCA275CE 8 3 LED Trouble Handset 8 3 1 Key Back Light 8 3 2 Charging And Ringing LED ...
Страница 36: ...36 KX TCA275CE 8 6 No Voice Transmission ...
Страница 37: ...37 KX TCA275CE 8 7 No Voice Reception 8 7 1 Talk Mode ...
Страница 39: ...39 KX TCA275CE 9 Service Fixture Tools ...
Страница 46: ...46 KX TCA275CE 4 6 Downloading Start After several seconds Display shows Flash Program Start ...
Страница 55: ...55 KX TCA275CE 12 2 Terminal Guide of the ICs Transistors and Diodes 12 2 1 Handset 12 2 2 Charger Unit ...
Страница 65: ...65 KX TCA275CE 16 2 Cabinet and electrical Parts Location 16 2 1 Handset ...
Страница 66: ...66 KX TCA275CE 16 2 2 Charger Unit ...
Страница 67: ...67 KX TCA275CE 16 2 3 Accessories and Packing Materials ...