15.4. Reset Circuit
Function:
This circuit is used for to initialize the microcomputer when it incorporates an AC adaptor.
Circuit Operation:
When the AC Adaptor is inserted into the unit, then the voltage is shifted by IC100, D101 and power is supplied to the DSP.
The set can operate beyond point
in the circuit voltage diagram.
55
KX-TG2257BXS
Содержание KX-TG2257BXS
Страница 8: ...4 1 Base unit 4 LOCATION OF CONTROLS 8 KX TG2257BXS ...
Страница 9: ...4 2 Handset 9 KX TG2257BXS ...
Страница 11: ...11 KX TG2257BXS ...
Страница 12: ...5 2 Base unit display 12 KX TG2257BXS ...
Страница 15: ...7 1 Making Calls 7 OPERATION 7 1 1 Handset 15 KX TG2257BXS ...
Страница 16: ...16 KX TG2257BXS ...
Страница 17: ...17 KX TG2257BXS ...
Страница 18: ...18 KX TG2257BXS ...
Страница 19: ...7 1 2 Base Unit Digital Duplex Speakerphone 19 KX TG2257BXS ...
Страница 20: ...20 KX TG2257BXS ...
Страница 21: ...7 2 Answering Calls 7 2 1 Handset 7 2 2 Base Unit 21 KX TG2257BXS ...
Страница 22: ...7 3 1 Setting the Unit to Answer Calls 7 3 Automatic Answering Operation 22 KX TG2257BXS ...
Страница 23: ...7 4 Listening to Messages 7 4 1 Slow Talk Message Playback 23 KX TG2257BXS ...
Страница 24: ...7 4 2 During playback 24 KX TG2257BXS ...
Страница 25: ...7 4 3 From the Handset 25 KX TG2257BXS ...
Страница 26: ...7 5 FLASH Button 26 KX TG2257BXS ...
Страница 29: ...9 ASSEMBLY INSTRUCTIONS 9 1 Assembly the LCD to P C Board Handset 29 KX TG2257BXS ...
Страница 40: ...10 9 5 RF DSP interface signal wave form 40 KX TG2257BXS ...
Страница 43: ...11 2 TAM Test mode flow chart 43 KX TG2257BXS ...
Страница 58: ...15 9 Signal Route Each signal route is as follows 58 KX TG2257BXS ...
Страница 65: ...18 CPU DATA Base Unit 18 1 IC201 65 KX TG2257BXS ...
Страница 66: ...19 CPU DATA Handset 19 1 IC201 66 KX TG2257BXS ...
Страница 67: ...20 EXPLANATION OF RF UNIT TERMINALS 20 1 IC101 67 KX TG2257BXS ...
Страница 69: ...22 CABINET AND ELECTRICAL PARTS Base Unit 69 KX TG2257BXS ...
Страница 70: ...23 CABINET AND ELECTRICAL PARTS Handset 70 KX TG2257BXS ...
Страница 71: ...24 ACCESSORIES AND PACKING MATERIALS 71 KX TG2257BXS ...
Страница 72: ...25 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 25 1 Base Unit 25 2 Handset 72 KX TG2257BXS ...
Страница 79: ...27 3 Memo 79 KX TG2257BXS ...
Страница 80: ...28 SCHEMATIC DIAGRAM Base Unit 1 3 4 5 13 14 15 16 18 19 21 22 6 12 IC201 IC101 IC202 IC300 80 KX TG2257BXS ...
Страница 82: ...29 SCHEMATIC DIAGRAM Handset IC202 1 2 3 4 5 6 23 24 26 46 48 49 51 52 27 28 45 53 60 82 KX TG2257BXS ...
Страница 86: ...31 1 MEMO 86 KX TG2257BXS ...
Страница 91: ...91 KX TG2257BXS H M KXTG2257BXS ...