Panasonic KX-FL612CX - Fan Motor Section

7.8. FAN MOTOR SECTION
This FAN is used to radiate heat in the unit.
The signal level at pin 92/94 of IC605 becomes high, the FAN is activated. In this case, the pulse signal as shown below input
to pin 91 of IC605 and the rotation of the FAN is detected.
170
KX-FL612CX / KX-FL612CX-S