Epson EPL-N3000 - Pwba Oct; Motor Assy Oct

EPSON EPL-N3000/AcuLaser M4000N Revision C
Troubleshooting Troubleshooting for Individual Units 139
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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