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16.3. Battery Low / Power Down Detector
Circuit Operation:
“Battery Low” and “Power Down” are detected by RF IC which check the voltage from battery. Shortly, every detected blocks
are inside of RF IC. The detected voltage is as follows;
•
Battery Low
Battery voltage : V(Batt) < 3.457V
The CPU detects the level and “Recharge battery” LED starts flashing.
•
Power Down
Battery voltage : V(Batt) < 3.0V
The output of RF IC (Power Down) becomes low level, then CPU stops working to keep the data (CH number, ID Code, etc.)
<Fig. 6>
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KX-TC2105LBB
Summary of Contents for KX-TC2105LBB
Page 7: ...4 2 Location of Controls 4 2 1 Base Unit 4 2 2 Handset 7 KX TC2105LBB ...
Page 8: ...4 3 Connection 8 KX TC2105LBB ...
Page 9: ...4 4 Troubleshooting 9 KX TC2105LBB ...
Page 18: ...Cross Reference SIGNAL ROUTE P 41 6 6 Check Handset Reception 18 KX TC2105LBB ...
Page 28: ...12 2 Ringing 28 KX TC2105LBB ...
Page 29: ...12 3 Changing the Channel 29 KX TC2105LBB ...
Page 41: ...17 SIGNAL ROUTE Each signal route is as follows 41 KX TC2105LBB ...
Page 42: ...18 CPU DATA Base Unit 18 1 IC201 42 KX TC2105LBB ...
Page 43: ...19 CPU DATA Handset 19 1 IC701 43 KX TC2105LBB ...
Page 44: ...20 RF IC Base Unit and Handset 20 1 Base Unit IC401 Handset IC801 44 KX TC2105LBB ...
Page 47: ...22 CABINET AND ELECTRICAL PARTS BASE UNIT 47 KX TC2105LBB ...
Page 48: ...23 CABINET AND ELECTRICAL PARTS HANDSET 48 KX TC2105LBB ...
Page 49: ...24 ACCESSORIES AND PACKING MATERIALS 49 KX TC2105LBB ...
Page 58: ...Memo KX TC2105LBB 58 ...