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6: Troubleshooting
6-50
Colorwriter LSR 2000 Printer
Service Guide
Table 6-42
E801 Fixing fan failure
Cause
Step
Check
Decision
Action
Poor connection
1
Is the mechanical controller
PCB connector J2012
connection good?
NO
Reconnect it.
Fixing unit fan
2
Disconnect mechanical
controller PCB connector
J2012.
Immediately after turning the
power switch ON, does the
voltage between mechanical
controller PCB connectors
J2012-3 (FAND1) and J2012-
1 (GND) change from 0V to
about 24VDC?
YES
Replace the fixing unit
fan.
Mechanical controller PCB
NO
Replace the mechanical
controller PCB.
Table 6-43
E802 Electrical unit fan failure
Cause
Step
Check
Decision
Action
Poor connection
1
Is the mechanical controller
PCB connector J2019
connection good?
NO
Reconnect it.
Electrical unit fan
2
Disconnect mechanical
controller PCB connector
J2019.
Immediately after turning the
power switch ON, does the
voltage between mechanical
controller PCB connectors
J2019-3 (FAND2) and J2019-
1 (GND) change from 0V to
about 24VDC?
YES
Replace the electrical
unit fan.
Mechanical controller PCB
NO
Replace the mechanical
controller PCB.