13.3. Signal Flowchart in the Whole System
Reception
CN1 of the base unit is connected to the TEL line, and the signal is input through the bridge diode D4. While talking the relay
(Q4) is turned ON and amplified at the amplifiers Q50, then led to DSP (IC201). DSP generates ADPCM signal. The ADPCM
signal is input to RFIC (IC801) of RF UNIT. RFIC outputs FSK modulated RF signal. The RF signal is passed through filter
(IC801) to be transmitted from the antenna. As for the handset, RF signal from the antenna is input to RFIC passing through
filter (IC801) then input to DSP (IC201). DSP performs ADPCM decoding to convert the signal into the voice signal, then it is
output to the speaker.
Transmission
The voice signal input from the microphone is led to DSP (IC201). The DSP generates ADPCM signal. As well as the reception,
it is converted into the RF signal by RFIC (IC801). Passing through filter (FL801), it is transmitted from the antenna. As for the
base unit, RF signal from the antenna is input to RFIC (IC801) passing through filter (FL801) then input to DSP (IC201). DSP
performs ADPCM decoding to convert the signal into the voice signal. The voice signal is amplified at the TX amplifier (Q1), then
output to the TEL line (CN1) through the relay (Q4) and bridge (D4).
52
KX-TG2260BXS / KX-TGA228BXS
Содержание KX-TG2260BXS
Страница 8: ...4 5 Battery Replacement 4 6 Battery information 8 KX TG2260BXS KX TGA228BXS ...
Страница 9: ...5 LOCATION OF CONTROLS 5 1 Base Unit 9 KX TG2260BXS KX TGA228BXS ...
Страница 10: ...5 2 Handset 10 KX TG2260BXS KX TGA228BXS ...
Страница 11: ...6 DISPLAY 6 1 Troubleshooting 11 KX TG2260BXS KX TGA228BXS ...
Страница 12: ...12 KX TG2260BXS KX TGA228BXS ...
Страница 13: ...13 KX TG2260BXS KX TGA228BXS ...
Страница 14: ...14 KX TG2260BXS KX TGA228BXS ...
Страница 15: ...7 SETTINGS 7 1 Connections 7 2 Dialing Mode Handset 15 KX TG2260BXS KX TGA228BXS ...
Страница 16: ...7 3 Line Mode Handset 16 KX TG2260BXS KX TGA228BXS ...
Страница 17: ...7 4 Direct Commands 17 KX TG2260BXS KX TGA228BXS ...
Страница 18: ...8 OPERATIONS 8 1 Making Calls 8 1 1 Using the Handset 18 KX TG2260BXS KX TGA228BXS ...
Страница 19: ...19 KX TG2260BXS KX TGA228BXS ...
Страница 20: ...8 1 2 Using the Base Unit 20 KX TG2260BXS KX TGA228BXS ...
Страница 21: ...8 2 Answering Calls 8 2 1 Base Unit 8 2 2 Handset 21 KX TG2260BXS KX TGA228BXS ...
Страница 22: ...8 3 FLASH Button 22 KX TG2260BXS KX TGA228BXS ...
Страница 23: ...8 4 Dial Lock Handset 23 KX TG2260BXS KX TGA228BXS ...
Страница 24: ...8 5 Erasing Messages 24 KX TG2260BXS KX TGA228BXS ...
Страница 26: ...26 KX TG2260BXS KX TGA228BXS ...
Страница 27: ...8 6 2 Dialing from the Phone Book 27 KX TG2260BXS KX TGA228BXS ...
Страница 28: ...8 6 3 Editing an Item in the Phone Book 8 6 4 Erasing an Item in the Phone Book 28 KX TG2260BXS KX TGA228BXS ...
Страница 31: ...10 ASSEMBLY INSTRUCTIONS 10 1 Fix the LCD to P C Board Handset 31 KX TG2260BXS KX TGA228BXS ...
Страница 42: ...11 9 5 RF DSP interface signal wave form 42 KX TG2260BXS KX TGA228BXS ...
Страница 45: ...12 2 TAM Test mode flow chart 45 KX TG2260BXS KX TGA228BXS ...
Страница 66: ...19 SIGNAL ROUTE Each signal route is as follows 66 KX TG2260BXS KX TGA228BXS ...
Страница 67: ...20 CPU DATA BASE UNIT 20 1 IC201 67 KX TG2260BXS KX TGA228BXS ...
Страница 68: ...21 CPU DATA HANDSET 21 1 IC201 68 KX TG2260BXS KX TGA228BXS ...
Страница 69: ...22 EXPLANATION OF RF UNIT TERMINALS 22 1 IC801 69 KX TG2260BXS KX TGA228BXS ...
Страница 71: ...24 CABINET AND ELECTRICAL PARTS BASE UNIT 71 KX TG2260BXS KX TGA228BXS ...
Страница 72: ...25 CABINET AND ELECTRICAL PARTS HANDSET 72 KX TG2260BXS KX TGA228BXS ...
Страница 73: ...26 ACCESSORIES AND PACKING MATERIALS 73 KX TG2260BXS KX TGA228BXS ...
Страница 74: ...27 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 27 1 Base Unit 27 2 Handset 74 KX TG2260BXS KX TGA228BXS ...
Страница 81: ...29 3 Memo 81 KX TG2260BXS KX TGA228BXS ...
Страница 84: ...30 2 Memo 84 KX TG2260BXS KX TGA228BXS ...
Страница 88: ...31 1 Memo 88 KX TG2260BXS KX TGA228BXS ...
Страница 95: ...95 KX TG2260BXS KX TGA228BXS H M KXTG2260BXS KXTGA228BXS ...