Read Panasonic KX-UT133RU / KX-UT133RU-B / KX-UT136RU / KX-UT136RU-B (serv.man3) Service Manual online
12
KX-UT133RU/KX-UT133RU-B/KX-UT136RU/KX-UT136RU-B
4.2.7.
LED Circuit
The lighting of the LEDs is controlled by IC205.
Ringer LEDs are static lighting system.
Other LEDs light up in a dynamic lighting system.
The duty ratio is 1/10 (ON time 1.6ms).
Ringer LEDs are static lighting system.
Other LEDs light up in a dynamic lighting system.
The duty ratio is 1/10 (ON time 1.6ms).
LED dynamic control timing chart
LED lights with 3.3V created by the STB pin of the High output and the COM pin of the Low output.
LED lights with 3.3V created by the STB pin of the High output and the COM pin of the Low output.
Click on the first or last page to see other KX-UT133RU / KX-UT133RU-B / KX-UT136RU / KX-UT136RU-B (serv.man3) service manuals if exist.