Epson EPL-N3000 - Interlock S;W 5 V, Switch I;L Assy; Interlock4); Interlock S;W 5 V, Switch I;L Assy (Harness Assy Interlock4)

EPSON EPL-N3000/AcuLaser M4000N Revision C
Troubleshooting Troubleshooting for Individual Units 120
Confidential
3.4.8 INTERLOCK S/W 5V, SWITCH I/L ASSY
(HARNESS ASSY INTERLOCK4)
Table 3-67. Troubleshooting for INTERLOCK S/W 5V
Step Action and Question Yes No
Parts below can be the source of this error (Chapter 4 Disassembly and Assembly)
• INTERLOCK S/W (p.247)
• SWITCH I/L ASSY (p.173)
• HARNESS ASSY ROS
• HARNESS ASSY LVPS
•LVPS (p.287)
•HVPS/MCU (p.301)
1
INTERLOCK S/W 5V
1. Remove the INTERLOCK S/W 5VL.
2. While pressing and releasing the lever of the
INTERLOCK S/W 5V, check continuity between P/
J142-1 ↔ P/J142-3.
(Refer to “Connectors (p.406)”)
♦Is there continuity between P/J142-1 ↔ P/J142-3
when the INTERLOCK S/W 5V is pressed and
discontinuity when it is released?
Go to Step 2
Replace the
INTERLOCK
S/W 5V
2
SWITCH I/L ASSY
1. Remove the P/J144.
2. While pushing and releasing the SWITCH I/L
ASSY, check continuity between P/J144-1
↔ P/
J144-3.
♦Is there continuity between P/J144-1 ↔ P/J144-3
when the SWITCH I/L ASSY is pressed and
discontinuity when it is released?
Go to Step 3
Replace the
SWITCH I/L
ASSY 5VR
3
HARNESS ASSY LVPS
1. Disconnect the P/J141, P/J142 and P/J144.
2. Check continuity of the following wiring:
J141-3 ↔ P142-1
J141-1 ↔ P144-3
P142-3 ↔ P144-1
♦Does each wiring have continuity?
Go to Step 4
Replace the
Harness Assy
LVPS
4
HARNESS ASSY ROS
1. Disconnect the P/J141, P/J14 and P/J143.
2. Check continuity of the following wiring:
P141-1 ↔ J14-1
P141-3 ↔ P140-8
♦Does each wiring have continuity?
Go to 3.4.1
LVPS (p.111)
Replace the
HARNESS
ASSY ROS
Table 3-67. Troubleshooting for INTERLOCK S/W 5V (continued)
Step Action and Question Yes No