Panasonic KX-FT63BX

6.5.6. DOCUMENT SET SENSOR (PS1)
When a document is set, the shelter plate closes the sensor light, the photo transistor becomes OFF, and the input signal of the
IC1-15 pin (Operation) becomes a high level. When there is no document, the shelter plate passes the sensor light, the photo
transistor becomes ON, and the input signal of the IC1-15 pin (Operation) becomes a low level. (When checking this sensor, the
IC1-41 pin becomes a low level.)
Operation Board
Photo transistor Signal (IC1-15 Pin)
No document ON Low level
Set document OFF High level
6.5.7. JOG SENSOR (SW 50)
This sensor detects the speed and direction of the jog dial rotation based on variations in the potential of JOG1 (pin 128 of IC1)
and JOG2 (pin 129 of IC1).
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KX-FT63BX / KX-FT63BX-W