EPSON EPL-N3000/AcuLaser M4000N
Revision C
Troubleshooting
Troubleshooting for Individual Units
139
Confidential
3.4.32 PWBA OCT
3.4.33 MOTOR ASSY OCT
Table 3-91. Troubleshooting for PWBA OCT
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
• PWBA OCT
(p.368)
• HARNESS ASSY OCT1
• HARNESS ASSY OCT2
• HVPS/MCU
(p.301)
• LVPS
(p.287)
1
Continuity of HARNESS ASSY OCT2
1. Disconnect the Option OCT.
2. Disconnect P/J 70 on the PWBA OCT
3. Disconnect the HARNESS ASSY OCT2.
♦
Is there normal continuity between J70
↔
J3070?
Go to Step 2
Replace the
HARNESS
ASSY OCT2
2
Continuity of HARNESS ASSY OCT1
1. Disconnect the HARNESS ASSY OCT1.
♦
Is there normal continuity between J30
↔
J3070?
Go to Step 3
Replace the
HARNESS
ASSY OCT1
3
PWBA OCT
1.
Replace the PWBA OCT.
(p.368)
♦
After replacement, does the problem still occur?
Problem
solved
Replace the
HVPS/MCU
Table 3-92. Troubleshooting for MOTOR ASSY OCT
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
• MOTOR ASSY OCT
(p.378)
• PWBA OCT
(p.368)
• HARNESS ASSY OCT MOT
• HARNESS ASSY OCT2
• HVPS/MCU
(p.301)
• HARNESS ASSY OCT1
1
Continuity of HARNESS ASSY OCT MOT
1. Disconnect the HARNESS ASSY OCT MOT.
♦
Is there normal continuity between J71
↔
J710?
Go to Step 2
Replace the
HARNESS
ASSY OCT
MOT
2
MOTOR ASSY OCT
1.
Replace the MOTOR ASSY OCT.
(p.378)
♦
Is the trouble solved?
PGo to
3.4.32
PWBA OCT
(p.139)
Go to Step 3
3
HARNESS ASSY OCT2
1. Disconnect P/J 70 on the PWBA OCT
2. Disconnect the HARNESS ASSY OCT2.
♦
Is there normal continuity between J70
↔
J3070?
Go to Step 4
Replace the
HARNESS
ASSY OCT2
4
Continuity of HARNESS ASSY OCT1
1. Disconnect the HARNESS ASSY OCT1.
♦
Is there normal continuity between J30
↔
J3070?
Go to Step 5
Replace the
HARNESS
ASSY OCT1
5
PWBA OCT
1.
Replace the PWBA OCT.
(p.368)
♦
Is the trouble solved?
Problem
solved
Replace the
HVPS/MCU
Summary of Contents for AcuLaser M4000N
Page 19: ...Confidential C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 33: ...Confidential C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 63: ...Confidential C H A P T E R 3 TROUBLESHOOTING ...
Page 160: ...Confidential C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Page 396: ...Confidential C H A P T E R 5 ADJUSTMENT ...
Page 404: ...Confidential C H A P T E R 6 MAINTENANCE ...