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.
Содержание KX-TMC40JX-W
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Страница 7: ...4 2 Time and Date ...
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Страница 9: ...4 3 LCD Contrast ...
Страница 10: ...4 4 Making Calls ...
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Страница 14: ...4 7 Usin the Caller List ...
Страница 15: ...4 8 Viewing the Caller List ...
Страница 16: ...4 9 Calling Back from the Caller List ...
Страница 18: ...4 12 FLASH Button ...
Страница 31: ...9 7 Handset RX Circuit T R Q106 R160 R161 C610 36 pin of IC201 33 pin of IC201 C421 R422 R427 Q422 C426 SP ...
Страница 37: ...9 13 ICM Recording Circuit Circuit Operation Telephone Line C109 R160 R161 C160 pin 36 of IC201 ...
Страница 40: ...10 CPU DATA 10 1 IC201 ...
Страница 41: ...11 FLASH MEMORY 11 1 IC300 IC301 ...
Страница 42: ...12 MODULE BLOCK DIAGRAM 12 1 LCD MODULE BLOCK ...
Страница 45: ...14 TERMINAL GUIDE OF ICs TRANSISTORS AND DIODES 15 CABINET AND ELECTRICAL PARTS ...
Страница 46: ...16 ACCESSORIES AND PACKING MATERIALS ...
Страница 62: ...CN801 MIC 2 1 24 23 PQUP11143ZA KX TMC40JXW OPERATION BOARD COMPONENT VIEW ...