Panasonic KX-FG2452CX Service Manual page 30

KX-FG2452CX
6.5.1. Document Top Sensor (SW351)
When a document is brought to the read position, the SW turns ON, and the input signal of IC301-6 pin (Operation Board) 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
Board) becomes a high level.
6.5.2. Document Set Sensor (SW352)
When a document is set, the SW turns ON, and the input signal of IC301-9 pin (Operation Board) becomes a low level. When there
is no document, the SW turns ON, and the input signal of IC301-9 pin (Operation Board) becomes a high level.
Out of the Read Position
At the Read Position
No document
Set document
SW Signal (IC301-6 pin)
OFF High level
ON Low level
SW Signal (IC301-9 pin)
OFF High level
ON Low level
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