9.3. Auto Disconnect Circuit
Function:
This circuit is used to detect the fact that another telephone connected to the same line is OFF-
HOOK while the unit is in a receiving status or OGM transmitting status.
Circuit Operation:
The voltage pin 35 of IC201 is monitored. If a parallel-connected telephone is put into an OFF
HOOK status, the presence/absence of a parallel connection is determined when the voltage
changes by 0.2V or more.
When the set detects the parallel-connected telephone is OFF HOOK status, the line is
disconnected.
Summary of Contents for KX-TMC40JX-W
Page 3: ......
Page 7: ...4 2 Time and Date ...
Page 8: ......
Page 9: ...4 3 LCD Contrast ...
Page 10: ...4 4 Making Calls ...
Page 11: ......
Page 12: ...4 5 Answering Calls ...
Page 13: ...4 6 Caller ID Service ...
Page 14: ...4 7 Usin the Caller List ...
Page 15: ...4 8 Viewing the Caller List ...
Page 16: ...4 9 Calling Back from the Caller List ...
Page 18: ...4 12 FLASH Button ...
Page 40: ...10 CPU DATA 10 1 IC201 ...
Page 41: ...11 FLASH MEMORY 11 1 IC300 IC301 ...
Page 42: ...12 MODULE BLOCK DIAGRAM 12 1 LCD MODULE BLOCK ...
Page 45: ...14 TERMINAL GUIDE OF ICs TRANSISTORS AND DIODES 15 CABINET AND ELECTRICAL PARTS ...
Page 46: ...16 ACCESSORIES AND PACKING MATERIALS ...
Page 62: ...CN801 MIC 2 1 24 23 PQUP11143ZA KX TMC40JXW OPERATION BOARD COMPONENT VIEW ...
