Epson EPL-N3000 - Interlock S;W Rear; Switch I;L Assy (Interlock S;W Front R)

EPSON EPL-N3000/AcuLaser M4000N Revision C
Troubleshooting Troubleshooting for Individual Units 121
Confidential
3.4.9 INTERLOCK S/W REAR 3.4.10 SWITCH I/L ASSY
(INTERLOCK S/W FRONT R)
Table 3-68. Troubleshooting for INTERLOCK S/W REAR
Step Action and Question Yes No
Parts below can be the source of this error (Chapter 4 Disassembly and Assembly)
• INTERLOCK S/W REAR (p.291)
• LVP S (p.287)
• HVPS/MCU (p.301)
1
INTERLOCK S/W REAR
1. Disconnect P/J44 on the LVPS.
2. While pressing and releasing the lever of the
INTERLOCK S/W REAR,
check continuity
between P/J44-1 ↔ P/J44-3.
(Refer to “Connectors (p.406)”)
♦Is there continuity between P/J44-1 ↔ P/J44-3 when
the INTERLOCK S/W REAR is pressed and
discontinuity when it is released?
Go to 3.4.1
LVPS (p.111)
Replace the
INTERLOCK
S/W REAR
Table 3-69. Troubleshooting for SWITCH I/L ASSY
Step Action and Question Yes No
Parts below can be the source of this error (Chapter 4 Disassembly and Assembly)
• SWITCH I/L ASSY (p.173)
• LVP S (p.287)
• HVPS/MCU (p.301)
1
SWITCH I/L ASSY
1. Disconnect the P/J411.
2. While pushing and releasing the SWITCH I/L
ASSY, check continuity between P/J411-1 ↔ P/
J411-2.
♦Is there continuity between P/J411-1 ↔ P/J411-2
when the SWITCH I/L ASSY is pressed and
discontinuity when it is released?
Go to Step 2
Replace the
SWITCH I/L
ASSY
2
HARNESS ASSY LVPS
1. Disconnect the P/J11, P/J41 and P/J411.
2. Check continuity of the following wiring:
P411-2 ↔ J41-5
P411-1 ↔ J11-12
♦Does each wiring have continuity?
Go to 3.4.1
LVPS (p.111)
Replace the
HARNESS
ASSY LVPS