Panasonic KX-FP342CX Service Manual page 170

Sensor
Sensor Circuit
Location
Operation SW353
Panel
SW352
Digital PCB PS501
Analog P.C.B SW101
Sensor P.C.B SW501
SW502
Sensor Locations
7.6.1. DOCUMENT TOP SW (SW352)................."REMOVE DOCUMENT"
When a document is brought to the read position, the SW turns ON, and the input signal of IC301-
6 pin (Operation) becomes a low level. When there is no document at the read position, the SW
turns OFF, and the input signal of IC301-6 pin (Operation)becomes a high level.
Operation Board
Out of the Read
Position
At the Read Position
Sensor or Switch
Name
Document set SW
Document top SW
Paper Top
Hook
Film Detection
Cover Open SW
Photo transistor Signal (IC301-6 pin)
OFF
ON
Message Error
[CHECK DOCUMENT]
[REMOVE DOCUMENT]
[PAPER JAMMED]
————
[CHECK FILM SLACK]
[COVER OPEN]
High level
Low level
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