Panasonic KX-FHD333BR Service Manual page 136

KX-FHD333BR
8.6.1. 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.
8.6.2. DOCUMENT SET SW (SW353)................."CHECK DOCUMENT"
When a document is set, the SW turns ON, and the input signal of IC301-9 pin (Operation) becomes a low level. When there is
no document, the SW turns ON, and the input signal of IC301-9 pin (Operation) becomes a high level.
8.6.3. COVER OPEN SW (SW502)................"COVER OPEN "
When the operation panel cover is closed and a film is set, the SW becomes ON, and the input signal of IC520-36 pin (Digital)
becomes a low level. When the cover is opened, the SW becomes OFF, and the input signal of IC520-36 pin (Digital) becomes a
high level.
Out of the Read Position
At the Read Position
No document
Set document
Cover open
Cover closed
Operation Board
Photo transistor Signal (IC301-6 pin)
OFF
ON
Operation Board
Photo transistor Signal (IC301-9 pin)
OFF
ON
Sensor Board
SW Signal (IC520-36 pin)
OFF
ON
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High level
Low level
High level
Low level
High level
Low level