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6: Troubleshooting
Colorwriter LSR 2000 Printer
Service Guide
6-47
Table 6-32
E190 DC controller failure (EEPROM abnormal)
Cause
Step
Check
Decision
Action
DC controller PCB
1
Replace the DC
controller PCB.
Table 6-33
E191 DC controller failure (5V/24V)
Cause
Step
Check
Decision
Action
Power supply unit
DC controller PCB
1
Are the DC controller PCB
connector J101 and power
supply unit connector J4
connections good?
YES
Replace and check as
follows:
• Power supply unit
• DC controller PCB
Poor connection
NO
Reconnect them.
Table 6-34
E192 DC controller failure (IC abnormal)
Cause
Step
Check
Decision
Action
DC controller PCB
1
Replace the DC
controller PCB.
Table 6-35
E193 Temperature/humidity sensor PCB failure
Cause
Step
Check
Decision
Action
Temperature/humidity sensor
unit
Mechanical controller PCB
DC controller PCB
1
Are the temperature/humidity
sensor unit connector J73,
connector J15, and mechanical
controller PCB connector
J2005 connections good?
YES
Replace and check as
follows:
• Temperature/humidity
sensor unit
• Mechanical controller
PCB
• DC controller PCB
Poor connection
NO
Reconnect them.