Panasonic KX-MC6020RU / KX-FAP317A / KX-FAB318A Service Manual ▷ View online
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KX-MC6020RU
6.13.21. Optional OPF Paper Sensor
This sensor detects whether there are recording papers in the Optional paper tray or not.
When there are recording papers in the tray, a shelter plate closes the sensor light.
So the photo-transistor turns off and the input signal of IC300-J33pin becomes high level.
When there no recording papers in the tray, a shelter plate lets the sensor light pass.
So the photo-transistor turns on and the input signal of IC300-J33pin becomes low level.
When there are recording papers in the tray, a shelter plate closes the sensor light.
So the photo-transistor turns off and the input signal of IC300-J33pin becomes high level.
When there no recording papers in the tray, a shelter plate lets the sensor light pass.
So the photo-transistor turns on and the input signal of IC300-J33pin becomes low level.
6.13.22. Optional OPF Jam Sensor
This sensor detects whether the paper is at the OPF sensor position.
When the recording paper is detected, the shelter plate lets the sensor light pass.
So the photo-transistor turns on and the input signal of IC300-L32pin becomes low level.
When the recording paper is not detected, the shelter plate closes the sensor light.
So the photo-transistor turns off and the input signal of IC300-L32pin becomes high level.
When the recording paper is detected, the shelter plate lets the sensor light pass.
So the photo-transistor turns on and the input signal of IC300-L32pin becomes low level.
When the recording paper is not detected, the shelter plate closes the sensor light.
So the photo-transistor turns off and the input signal of IC300-L32pin becomes high level.
Photo-transistor
Signal (IC300-J33Pin)
Paper Exist
OFF
High Level
No Paper
ON
Low Level
Photo-transistor
Signal (IC300-L32Pin)
Paper Exist
ON
Low Level
No Paper
OFF
High Level
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KX-MC6020RU
6.13.23. Optional OPF Cassette Sensor
This sensor detects whether the Optional paper tray is set or not.
When there is the Optional paper tray, a shelter plate closes the sensor light.
So the photo-transistor turns off and the input signal of IC300-F34pin becomes high level.
When there is not the Optional paper tray, a shelter plate lets the sensor light pass.
So the photo-transistor turns on and the input signal of IC300-F34pin becomes low level.
When there is the Optional paper tray, a shelter plate closes the sensor light.
So the photo-transistor turns off and the input signal of IC300-F34pin becomes high level.
When there is not the Optional paper tray, a shelter plate lets the sensor light pass.
So the photo-transistor turns on and the input signal of IC300-F34pin becomes low level.
Photo-transistor
Signal (IC300-F34Pin)
Paper Tray Set
OFF
High Level
No Paper Tray
ON
Low Level
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KX-MC6020RU
6.13.24. Optional OPF Cover Switch
This switch detects whether the OPF cover is open or closed.
When the cover is closed, the input signal of IC300-H34pin becomes low level.
When the cover is open, the input signal of IC300-H34pin becomes high level.
When the cover is closed, the input signal of IC300-H34pin becomes low level.
When the cover is open, the input signal of IC300-H34pin becomes high level.
6.13.25. Optional ADU Jam Sensor
This sensor detects whether the paper is at the ADU sensor position.
When the recording paper is detected, the shelter plate lets the sensor light pass.
So the photo-transistor turns on and the input signal of IC300-K34pin becomes low level.
When the recording paper is not detected, the shelter plate closes the sensor light.
So the photo-transistor turns off and the input signal of IC300-K34pin becomes high level.
When the recording paper is detected, the shelter plate lets the sensor light pass.
So the photo-transistor turns on and the input signal of IC300-K34pin becomes low level.
When the recording paper is not detected, the shelter plate closes the sensor light.
So the photo-transistor turns off and the input signal of IC300-K34pin becomes high level.
6.13.26. Optional ADU Cover Switch
This switch is turned ON and OFF by opening and closing ADU cover to provide power supply to ADU driving motor IC.
Signal (IC300-H34Pin)
Cover Close
Low Level
Cover Open
High Level
Photo-transistor
Signal (IC300-K34Pin)
Paper Exist
ON
Low Level
No Paper
OFF
High Level
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KX-MC6020RU
6.14. Operation Board Section
The unit consists of a LCD (Liquid crystal display), KEYs, and LEDs (light-emitting diodes). They are controlled by the Gate Array
(IC201) and SOC (IC300 on Main board).
The key matrix table is shown below.
(IC201) and SOC (IC300 on Main board).
The key matrix table is shown below.
1. Key Matrix
a. Hard Scan
2. LED
• AUTO ANSWER LED ON/OFF port---XLED12 (IC201-15pin)
• FAX MODE LED ON/OFF port---XLED11 (IC201-16pin)
• COPY MODE LED ON/OFF port---XLED8 (IC201-5pin)
• SCAN MODE LED ON/OFF port---XLED9 (IC201-6pin)
• FAX MODE LED ON/OFF port---XLED11 (IC201-16pin)
• COPY MODE LED ON/OFF port---XLED8 (IC201-5pin)
• SCAN MODE LED ON/OFF port---XLED9 (IC201-6pin)
KIN0
KIN1
KIN2
KIN3
KIN4
KIN5
KIN6
KIN7
KSL0 2
3
1
MENU
REDIAL
COLLATE
-
LAYOUT
KSL1 5
6
4
↑
FLASH
CONTRAST
PRINT
ZOOM
KSL2 8
9
7
→
-
RESOLUTION SCAN
←
KSL3 START COLOR STOP
START BLACK
↓
AUTO ANSWER S1
FAX
LOWER
KSL4
(LED7)
(LED7)
0
#
SET
MONITOR
S2
COPY
S3
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