Panasonic KX-FLC418RU, Service Manual

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KX-FLC418RU
6.12. Sensors and Switches Section
All of the sensor and switches are shown below.
Note:
See TEST FUNCTIONS - SENSOR CHECK SECTION for the sensor test.
(#815 of Service Mode test. Refer to
Test Functions (P.89).
6.12.1. Hook Switch
When the handset is raised, the switch is turned OFF, and the signal at pin 6 of IC101 is high.
When the handset is returned, the switch is turned ON, and the signal at pin 6 of IC101 is low.
6.12.2. Document Sensor
The Sensor detects whether or not a document is in place.
When a document is detected, the shelter plate shuts off the sensor light, the photo-transistor turns OFF, and the input signal of
IC101-19pin becomes a high level. When there is no document, the shelter plate let the sensor light pass through, the photo-
transistor turns ON, and the input signal of IC101-19pin becomes a low level.
Sensor Circuit Location Sensor Sensor or Switch Name Message Error
Operation Panel PS101 Document set [CHECK DOCUMENT]
Operation Panel SW150 Paper Feed [REMOVE DOCUMENT]
High Voltage PCB SW1 Printer Open [COVER OPEN]
High Voltage PCB SW2 OPC Set [CHECK DRUM]
Digital PCB PS102 Regist [FAILED PICKUP]
Digital PCB PS101 Paper [OUT OF PAPER]
Exit Sensor PCB PS51 Exit [PAPER JAMMED]
Toner Sensor PCB IC60 Dev & Toner Set [TONER EMPTY]
[TONER LOW]
[CHECK DRUM]
Operation Panel SW151 Hook ————
Photo-transistor Signal (IC101-19pin)
Document Set OFF High level
No Document ON Low level