EPSON EPL-N3000/AcuLaser M4000N
Revision C
Troubleshooting
Troubleshooting for Individual Units
141
Confidential
3.4.36 S/W REAR COVER
Table 3-95. Troubleshooting for S/W REAR COVER
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
• S/W REAR COVER
• HARNESS ASSY REAR COVER
• PWBA OCT
(p.368)
• HARNESS ASSY OCT2
• HVPS/MCU
(p.301)
• LVPS
(p.287)
• HARNESS ASSY OCT1
1
Continuity of S/W REAR COVER (1)
1. Disconnect the S/W REAR COVER.
♦
Is there continuity between J740-2
↔
J740-1 when
the S/W REAR COVER is pushed, and no
continuity when it is released?
Go to Step 2
Replace the S/
W REAR
COVER
2
Continuity of HARNESS ASSY REAR COVER
1. Disconnect the HARNESS ASSY REAR COVER.
♦
Is there normal continuity between J74
↔
J740?
Go to Step 3
Replace the
HARNESS
ASSY REAR
COVER
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
S/W REAR COVER (2)
1. Remove the Imaging Cartridge.
♦
Is the voltage between J30-4
↔
P/J30-3 on the
HVPS/MCU 3.3 VDC?
Go to
3.4.32
PWBA OCT
(p.139)
Go to Step 6
6
Continuity of HVPS/MCU
1. Disconnect P/J30 on the PWBA OCT.
♦
Is there normal continuity between P30-4
↔
P11-
16?
Go to
3.4.1
LVPS
(p.111)
Replace the
HVPS/MCU
Содержание AcuLaser M4000N
Страница 1: ...EPSON EPL N3000 AcuLaserM4000N A4 Monochrome Laser Printer SERVICE MANUAL SEPG03004 Confidential ...
Страница 19: ...Confidential C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 33: ...Confidential C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 63: ...Confidential C H A P T E R 3 TROUBLESHOOTING ...
Страница 160: ...Confidential C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 396: ...Confidential C H A P T E R 5 ADJUSTMENT ...
Страница 404: ...Confidential C H A P T E R 6 MAINTENANCE ...
Страница 408: ...Confidential C H A P T E R 7 APPENDIX ...