18.5. Battery Low Detector Circuit
18.5.1.
Circuit Operation:
When the battery voltage goes down less than 3.45 V. this level is detected by the inside of
IC101, so its output is sent to Pin 26 of IC901.The CPU detects this level by its Pin 26 and battery
low indicator lights starts flashing.The IC101 check the level of the battery, if this level is less
than 3.3 V, the output of Pin 11 of IC101, then CPU stopsworking to keep the data (CH number ID
code, etc.).
18.6. CPU Operation
50
Summary of Contents for KX-TC1085BXB
Page 3: ...3 ...
Page 4: ...2 LOCATION OF CONTROLS 2 1 Base unit 4 ...
Page 5: ...2 2 Handset 5 ...
Page 6: ...3 CONNECTIONS 3 1 Connecting the AC Adaptor 6 ...
Page 8: ...8 ...
Page 9: ...3 3 Adding Another Phone 4 OPERATION 4 1 Making Calls 9 ...
Page 10: ...10 ...
Page 11: ...11 ...
Page 12: ...4 2 Answering Calls 12 ...
Page 13: ...4 3 FLASH Button 13 ...
Page 14: ...5 DISASSEMBLY INSTRUCUTIONS 14 ...
Page 15: ...Shown in Fig To remove Remove 1 Lower Cabinet Screws 3 14 A 5 2 Antenna Screw 3 14 B 1 15 ...
Page 29: ...29 ...
Page 31: ...13 2 CH Change Mode 13 3 To terminate Communication 31 ...
Page 44: ...16 13 Signal Route Each signal route is as follows 44 ...
Page 45: ...45 ...
Page 55: ...22 EXPLANATION OF IC TERMINALS 22 1 Base Unit IC801 55 ...
Page 56: ...22 2 Handset IC101 23 CABINET AND ELECTRICAL PARTS LOCATION BASE UNIT 56 ...
Page 57: ...24 CABINET AND ELECTRICAL PARTS LOCATION HANDSET 57 ...
Page 58: ...25 ACCESSORIES AND PACKING MATERIALS 58 ...
Page 59: ...26 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 26 1 Base Unit 26 2 Handset 59 ...
Page 65: ...R138 ERJ3GEYJ102 1k 65 ...
Page 87: ...IC801 IC301 IC701 IC402 IC601 IC303 ...
Page 88: ...IC101 IC201 IC802 ...
