Panasonic KX-FT932BR-B Service Manual page 27

6.5.1. Motor Position Sensor
This sensor is a detection switch for recording the position of the CAM.
6.5.2. Recording Paper Sensor (SW1)
When there is no recording paper, the plate is separated from the switch lever and the switch turns off. Pin 20 of IC1 becomes a
high level. When there is recording paper, the plate pushes the switch lever and the switch turns ON. Pin 20 of IC1 becomes a low
level.
Digital Board
Signal (IC1-119 Pin)
Home position Low level
Other High level
Analog Board
Signal (IC1-20 Pin)
Paper Low level
No paper High level
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KX-FT932BR-B