Panasonic KX-FC253UA-T / KX-FC258RU-T Service Manual ▷ View online
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KX-FC253UA-T/KX-FC258RU-T
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.
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.
is no document, the SW turns ON, and the input signal of IC301-9 pin (Operation Board) becomes a high level.
SW
Signal (IC301-6 pin)
Out of the Read Position
OFF
High level
At the Read Position
ON
Low level
SW
Signal (IC301-9 pin)
No document
OFF
High level
Set document
ON
Low level
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KX-FC253UA-T/KX-FC258RU-T
6.5.3.
Paper Top Sensor (SW1001)
When the recording paper is loaded on the print head or the recording paper cover is opened, the paper top sensor SW turns ON,
and the input signal of IC10-43 pin (Digital Board) becomes a low level. Usually, the SW turns OFF, and the input signal of IC10-43
pin (Digital Board) becomes a high level.
and the input signal of IC10-43 pin (Digital Board) becomes a low level. Usually, the SW turns OFF, and the input signal of IC10-43
pin (Digital Board) becomes a high level.
6.5.4.
Cover Open Sensor (SW1001)
When the u-TURN BLOCK is closed, the SW becomes ON, and the input signal of IC10-45 pin (Digital Board) becomes a low level.
When the cover is opened, the SW becomes OFF, and the input signal of IC10-45 (Digital Board) pin becomes a high level.
When the cover is opened, the SW becomes OFF, and the input signal of IC10-45 (Digital Board) pin becomes a high level.
SW
Signal (IC10-43 pin)
Set recording paper or paper cover is opened
ON
Low level
No recording paper or paper cover is closed
OFF
High level
SW
Signal (IC10-45 pin)
Cover is opened
OFF
High level
Cover is closed
ON
Low level
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KX-FC253UA-T/KX-FC258RU-T
6.5.5.
Film End Sensor (SW1003)
When the operation panel cover is closed and a film is set, the SW turns ON, and the input signal of IC10-39 pin (Digital) becomes
a low level. When the cover is opened, the SW turns OFF, and the input signal of IC10-39 pin (Digital) becomes a high level.
a low level. When the cover is opened, the SW turns OFF, and the input signal of IC10-39 pin (Digital) becomes a high level.
6.5.6.
Motor Position Sensor (SW1004)
When the recording paper is loaded on the print head, the SW turns ON, and the input signal of IC10-119 pin (Digital Board)
becomes a low level. When the recording paper is not loaded on the print head, the SW turns OFF, and the input signal of IC10-119
pin (Digital Board) becomes a high level.
becomes a low level. When the recording paper is not loaded on the print head, the SW turns OFF, and the input signal of IC10-119
pin (Digital Board) becomes a high level.
SW
Signal (IC10-39 pin)
Cover open or no film
OFF
High level
Cover closed and set a film
ON
Low level
Signal (IC10-119 pin)
Home position
Low level
Other
High level
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KX-FC253UA-T/KX-FC258RU-T
6.5.7.
Hook Switch (SW1501)
When the handset is lifted, the switch turns ON, and the signal at pin 19 of IC10 becomes low.
When the handset is returned, the switch turns OFF, and the signal at pin 19 of IC10 becomes high.
When the handset is returned, the switch turns OFF, and the signal at pin 19 of IC10 becomes high.
SW
Signal
ON-Hook
OFF
High level (IC10-19 pin)
OFF-Hook
ON
Low level
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