Panasonic KX-TS2365RUB - Circuit Operation

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13.5.1 Circuit operation
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D101 → Q101 → C201 → R201 → R205 → Pin 5 of IC201 → Pin 1 of IC201 → D202 → R208 → Q201
When the subscriber hangs-up, check the intermittent tone. If cycle tone is detected, the collector of
Q201 goes to a low logic.
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http://202.224.189.179/view_new/OT/KX-TS2365RUB/SVC/s1305010000.html11.02.2008 12:57:46