Clutch Assy Ph - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N

3.4.14 CLUTCH ASSY PH

Table 3-73. Troubleshooting for CLUTCH ASSY PH
Step Action and Question
Parts below can be the source of this error

• CLUTCH ASSY PH

(p.318)
• HARNESS ASSY TRAY1
• HARNESS ASSY TRAY2
• HARNESS ASSY CHUTE
• HVPS/MCU
(p.301)
• LVPS
(p.287)
Continuity of the HARNESS ASSY CHUTE
1. Disconnect P/J24 on the HVPS/MCU.
2. Check continuity of the following wiring:
(Refer to "Connectors (p.406)")
J24-13 ↔ J245-6
1
J24-12 ↔ J245-7
J24-5 ↔ J248-1
J24-4 ↔ J248-2
Does each wiring between J24 ↔ J245 and between
♦
J24 ↔ J248 have continuity?
Continuity of HARNESS ASSY TRAY1 and TRAY2
1. Remove the CLUTCH ASSY PH. (p.318)
2. Disconnect P/J245 or P/J248.
3. Check continuity of the following wiring:
P/J245-8 ↔ P/J242-1
2
P/J245-7 ↔ P/J242-2
P/J248-5 ↔ P/J247-1
P/J248-4 ↔ P/J247-2
Does each wiring between J245 ↔ J242 and between
♦
J248 ↔ J247 have continuity?
CLUTCH ASSY PH
1. Measure the resistance between P/J242-1 ↔ P/J242-
3
2 and between P/J247-1↔P/J247-2.
♦
Is the coil resistance of the CLUTCH ASSY PH
172Ω ± 10% (20°C)?
Troubleshooting
Yes No
(Chapter 4 Disassembly and
Assembly)
Replace the
Go to Step 2 HARNESS
ASSY CHUTE
Replace the
HARNESS
Go to Step 3
ASSY TRAY1
or TRAY2
Replace the
Go to Step 4 CLUTCH
ASSY PH
Troubleshooting for Individual Units
Table 3-73. Troubleshooting for CLUTCH ASSY PH
Step Action and Question
Continuity of the HVPS/MCU
1. Disconnect P/J24 and P/J10 on the HVPS/MCU.
4
2. Check continuity between the following terminals:
J24-12 ↔ J10-1
J24-4 ↔ J10-1
Is there continuity between J24 ↔ J10?
♦
Revision C
Yes No
Go to 3.4.1 Replace the
LVPS (p.111) HVPS/MCU
124
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