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

EPSON EPL-N3000/AcuLaser M4000N

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