3-5
Chapter 3 Troubleshooting
001-303 TRAY MODULE L/H COVER
INTERLOCK OPEN
Description
The TRAY MODULE L/H COVER is open.
BSD on : CH1.8 CH1.9 CH3.1D
Procedure
Run the
DC330
[001-304].
Open the TRAY MODULE L/H COVER, and turn the TRAY
MODULE L/H COVER INTERLOCK SW On/Off with a
driver.
Is the display switched between H and L?
Y
N
Actuate the TRAY MODULE L/H COVER INTERLOCK
SW.
Is +24 VDC measured between the TRAY MODULE
PWB J554-3 (+) and GND (-)?
Y
N
Is +24VDC measured between the TRAY MODULE
PWB J554-1 (+) and GND (-)?
Y
N
Check the +24 VDC circuit to the TRAY
MODULE PWB J554-1 by referring to Chapter
4 Wiring Data.
(WN4.3.13 +24 VDC-1)
(WN4.3.14 +24 VDC-2)
(WN4.3.15 +24 VDC-3)
(WN4.3.16 +24 VDC-4)
Is +24 VDC measured between the TRAY MODULE
L/H COVER INTERLOCK SW FS812 (+) and GND
(-)?
Y
N
Check the wire between the TRAY MODULE
PWB J554-1 and the TRAY MODULE L/H
COVER INTERLOCK SW FS812 for an open
circuit or poor contact.
Is +24 VDC measured between the TRAY MODULE
L/H COVER INTERLOCK SW FS813 (+) and GND
(-)?
Y
N
Replace the TRAY MODULE L/H COVER
INTERLOCK SW. (PL14.13)
Check the wire between the TRAY MODULE PWB
J554-3 and the TRAY MODULE L/H COVER
INTERLOCK SW FS813 for an open circuit or poor
contact.
Replace the TRAY MODULE PWB. (PL14.15)
If the problem persists, replace the MCU PWB. (PL13.1)
Check the installation status of the Actuator of the COVER and
the COVER. If no problems are found, replace the MCU PWB.
(PL13.1)
001-306 DUPLEX COVER INTERLOCK OPEN
Description
The DUPLEX COVER is open.
BSD on : CH10.6 CH10.8
Procedure
Run the
DC330
[008-300].
Open the DUPLEX COVER, and turn the DUPLEX COVER
INTERLOCK SW On/Off with a driver.
Is the display switched between H and L?
Y
N
Actuate the DUPLEX COVER INTERLOCK SW.
Is 0 VDC measured between the MCU MF PWB J406-A9
(+) and GND (-)?
Y
N
Is 0 VDC measured between the DUPLEX PWB
J540-2 (+) and GND (-)?
Y
N
Is 0 VDC measured between the DUPLEX
COVER INTERLOCK SW J136-2 (+) and GND
(-)?
Y
N
Check the DC COM circuit to the DUPLEX
COVER INTERLOCK SW J136-2 by
referring to Chapter 4 Wiring Data.
(WN4.3.9 +5 VRET-1)
(WN4.3.10 +5 VRET-2)
(WN4.3.11 +5 VRET-3)
(WN4.3.12 +5 VRET-4)
Is 0 VDC measured between the DUPLEX
COVER INTERLOCK SW J136-1 (+) and GND
(-)?
Y
N
Replace the DUPLEX COVER
INTERLOCK SWITCH. (PL12.2)
Check the wire between the DUPLEX PWB
J540-2 and the DUPLEX COVER INTERLOCK
SW J136-1 for an open circuit or poor contact.
Check the wire between the MCU MF PWB J406-A9
and the DUPLEX PWB J540-2 for an open circuit
and poor contact.
Check the wire between the I/F PWB and the MCU PWB.
If no problems are found, replace the MCU PWB.
(PL13.1)
Check the installation status of the Actuator of the COVER and
the COVER. If no problems are found, replace the MCU PWB.
(PL13.1)
Summary of Contents for DP-C321
Page 4: ...This page is intentionally left blank ...
Page 5: ...Chapter 1 General ...
Page 22: ...1 16 Chapter 1 General 1 3 Type of Paper ...
Page 23: ...1 17 Chapter 1 General ...
Page 24: ...Chapter 2 Maintenance ...
Page 63: ...Chapter 3 Troubleshooting ...
Page 118: ...3 44 Chapter 3 Troubleshooting I F PWB PL9 1 MCU PWB PL13 1 ...
Page 445: ...Chapter 4 Parts List ...
Page 548: ......