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Circuit Operation:
"Battery Low" and "Power Down" are detected by BBIC which check the voltage from battery.
The detected voltage is as follows;
- Battery Low
Battery voltage: V(Batt) 2.3V ± 50mV
The BBIC detects this level and "
" starts flashing.
- Power Down
Battery voltage: V(Batt) 2.2V ± 50mV
The BBIC detects this level and power down.
Refer to
Adjustment (Handset)
().
24.5. Speakerphone and Headset Jack
The hands-free loudspeaker at SP+ and SP- is used to generate the ring alarm. IC2 is used to
switch off the telephone loudspeaker and is used to amplify the signal to drive the hands-free
loudspeaker. They are selected using the SP_AMP line from pin 70 of the BBIC. 2.5mm headset
jack is also available.
25. CIRCUIT OPERATION (CHARGER UNIT)
25.1. Power Supply Circuit
The power supply is as shown.
26. SIGNAL ROUTE
83
Summary of Contents for KX-TCA150EXV
Page 9: ...9 ...
Page 13: ...6 3 Setting the Ringer Volume 6 3 1 Base unit 13 ...
Page 14: ...6 3 2 Handset 6 4 Settings Menu Chart 6 4 1 Base Unit 14 ...
Page 15: ...6 4 2 Handset 6 5 PIN Code 15 ...
Page 27: ...27 ...
Page 29: ...8 3 Redialling 8 4 Phonebook 29 ...
Page 32: ...8 4 3 Phonebook Character Table 8 4 4 Storing the Number in the Phonebook 32 ...
Page 33: ...8 4 5 Hot Key Speed Dial 33 ...
Page 35: ...8 5 Handset Registration to a Base Unit 35 ...
Page 36: ...Note for Service At step 7 enter Finally Handset will be linked to Base Unit 36 ...
Page 37: ...8 6 Base Unit Selection 37 ...
Page 39: ...9 2 Text Entry 39 ...
Page 40: ...Cross Reference SMS Character Table 40 ...
Page 41: ...9 3 SMS Character Table 41 ...
Page 42: ...9 4 Reading Displaying a Message 9 4 1 In the Outgoing List 42 ...
Page 43: ...9 4 2 In the Incoming List 43 ...
Page 44: ...44 ...
Page 45: ...9 5 Changing the SMS Service Centre Numbers 45 ...
Page 46: ...46 ...
Page 54: ...54 ...
Page 55: ...Cross Reference Power Supply Circuit Reset Circuit Adjustment Base Unit 12 3 2 Handset 55 ...
Page 77: ...meter 2 Put the probes at the receiver terminals as shown below 77 ...
Page 84: ...27 CPU DATA BASE UNIT 27 1 IC2 BBIC 84 ...
Page 105: ...105 ...
Page 107: ...35 ACCESSORIES AND PACKING MATERIALS 107 ...
Page 108: ...35 1 KX TCD505CXV 35 2 KX TCA151EXV 108 ...
Page 109: ...36 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 36 1 Base Unit 109 ...
Page 137: ...PbF D1 J1 CIRCUIT BOARD CHARGER UNIT Component View ...
Page 138: ...PbF R1 R2 TP4 TP1 TP2 TP3 CIRCUIT BOARD CHARGER UNIT Flow Solder Side View ...
Page 141: ...IC3 IC2 IC1 IC10 PbF Marked ...
Page 143: ...PbF D1 J1 Marked PbF R1 R2 TP4 TP1 TP2 TP3 Marked Component View Flow Solder Side View ...
Page 147: ...PbF R1 R2 TP4 TP1 TP2 TP3 Digital Volt Meter 12Ω 2W A DC Power Supply 6V ...