12.8. Initializing 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 IC301, D509 and power is supplied to the DSP.
The set can operate beyond point A in the circuit voltage diagram.
12.9. Antenna Diversity
Antenna Diversity improve conversation quality. This means to reduce some noise during conversation. RF unit send LQA (Link
Quality Alarm) signal to IC751 when increase Error Bit’s. Then IC751 control RF switch IC761 to switch another Antenna.
Antenna selection control by IC501 is available only in test mode.
63
KX-TG2559LBS
Содержание KX-TG2559LBS
Страница 4: ...1 LOCATION OF CONTROLS 1 1 Base Unit 4 KX TG2559LBS ...
Страница 5: ...1 2 Handset 5 KX TG2559LBS ...
Страница 7: ...7 KX TG2559LBS ...
Страница 9: ...3 2 Adding Another Phone 9 KX TG2559LBS ...
Страница 10: ...3 3 STANDARD BATTERY LIFE 3 3 1 Battery Charge 3 3 2 Battery strength 3 3 3 Recharge 10 KX TG2559LBS ...
Страница 11: ...3 3 4 Battery information 3 3 5 Standby mode The handset is off the base Unit 11 KX TG2559LBS ...
Страница 12: ...3 4 Selecting the Dialing Mode 12 KX TG2559LBS ...
Страница 13: ...3 5 Selecting the Line Mode 13 KX TG2559LBS ...
Страница 14: ...4 OPERATION 4 1 Making Calls 14 KX TG2559LBS ...
Страница 15: ...15 KX TG2559LBS ...
Страница 16: ...4 2 Answering Calls 16 KX TG2559LBS ...
Страница 17: ...4 3 Flash Button 17 KX TG2559LBS ...
Страница 21: ...21 KX TG2559LBS ...
Страница 22: ...4 4 4 Calling back from the caller list 22 KX TG2559LBS ...
Страница 24: ...4 4 6 Storing caller list information in the directory 24 KX TG2559LBS ...
Страница 25: ...4 4 7 Erasing caller list information 4 4 8 To erase all entries in the Caller List 25 KX TG2559LBS ...
Страница 26: ...5 DISASSEMBLY INSTRUCTIONS 26 KX TG2559LBS ...
Страница 28: ...6 ASSEMBLY INSTRUCTIONS 6 1 Assembly the LCD to P C Board Handset 28 KX TG2559LBS ...
Страница 29: ...6 2 How To Check Splash Resistance 29 KX TG2559LBS ...
Страница 31: ...7 TROUBLESHOOTING GUIDE 31 KX TG2559LBS ...
Страница 32: ...7 1 Check Power 32 KX TG2559LBS ...
Страница 34: ...7 3 Check Link 34 KX TG2559LBS ...
Страница 41: ...7 4 6 RF DSP Interface Signal Wave Form 41 KX TG2559LBS ...
Страница 42: ...7 5 Check Handset Voice Transmission 7 6 Check Handset Voice Reception 42 KX TG2559LBS ...
Страница 43: ...7 7 Check Call ID 43 KX TG2559LBS ...
Страница 50: ...8 7 Frequency Table 50 KX TG2559LBS ...
Страница 55: ...10 TERMINAL GUIDE OF IC S TRANSISTORS AND DIODES 10 1 Base Unit 10 2 Handset 55 KX TG2559LBS ...
Страница 60: ...60 KX TG2559LBS ...
Страница 67: ...15 CPU DATA Base Unit 15 1 IC501 68 KX TG2559LBS ...
Страница 68: ...16 CPU DATA Handset 16 1 IC201 69 KX TG2559LBS ...
Страница 69: ...17 EXPLANATION OF IC TERMINALS RF Unit Base Unit 17 1 IC101 70 KX TG2559LBS ...
Страница 71: ...19 CABINET AND ELECTRICAL PARTS Base Unit 72 KX TG2559LBS ...
Страница 72: ...20 CABINET AND ELECTRICAL PARTS Handset 73 KX TG2559LBS ...
Страница 73: ...21 ACCESSORIES AND PACKING MATERIALS 74 KX TG2559LBS ...
Страница 79: ...23 3 MEMO 80 KX TG2559LBS ...
Страница 87: ...28 2 Flow Solder Side View IC551 B E C B E C KX TG2559LBS 88 ...
Страница 90: ...91 KX TG2559LBS M H KXTG2559LBS Printed in Japan ...