Pwba Feeder550; Pwba Feeder - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N

3.4.21 PWBA FEEDER 550

The description given here assumes that Tray 3 is the Option 550
C H E C K
Feeder. If the Option 550 Feeder is installed as Tray 4, see
P O I N T
3.4.22 PWBA FEEDER 550
circuit.
Table 3-80. Troubleshooting for PWBA FEEDER 550
Step Action and Question
Parts below can be the source of this error
• PWBA FEEDER 550
(p.310)
• HVPS/MCU
(p.301)
• HARNESS ASSY FDR1
• HARNESS ASSY FDR2
HARNESS ASSY FDR2
1. Remove the HARNESS ASSY FDR2.
2. Check whether there is continuity between J2083 ↔
1
J83.
(Refer to "Connectors (p.406)")
Is there continuity between J2083 ↔ J83?
♦
HARNESS ASSY FDR1
2
1. Remove the HARNESS ASSY FDR1.
Is there continuity between J20 ↔ J2083?
♦

PWBA FEEDER550

3
1. Replace the PWBA FEEDER 550. (p.310)
♦
After replacing, has the truble been cleared?
Troubleshooting
for conditions for use of the
(p.130)
Yes No
(Chapter 4 Disassembly and
Assembly)
Replace the
Go to Step 2 HARNESS
ASSY FDR2
Replace the
Go to Step 3 HARNESS
ASSY FDR1
Problem Replace the
solved HVPS/MCU
Troubleshooting for Individual Units
3.4.22 PWBA FEEDER 550
The description given here assumes that Tray 4 is the Option 550
C H E C K
Feeder. If the Option 550 Feeder is installed as Tray 3, see
P O I N T
3.4.21 PWBA FEEDER 550
circuit.
Table 3-81. Troubleshooting for PWBA FEEDER 550
Step Action and Question
Parts below can be the source of this error
• PWBA FEEDER 550
(p.310)
• HVPS/MCU
(p.301)
• HARNESS ASSY FDR5
• HARNESS ASSY FDR2
HARNESS ASSY FDR2
1. Remove the HARNESS ASSY FDR2.
2. Check whether there is continuity between J8483 ↔
1
J83.
(Refer to "Connectors (p.406)")
Is there continuity between J2083 ↔ J83?
♦
HARNESS ASSY FDR5
1. Remove the HARNESS ASSY FDR5.
2
2. Check whether there is continuity between J8483 ↔
J84.
♦ Is there continuity between J8483 ↔ J84?
PWBA FEEDER550
3
1. Replace the PWBA FEEDER 550. (p.310)
♦
After replacing, has the trouble been cleared?
Revision C
for conditions for use of the
(p.130)
Yes No
(Chapter 4 Disassembly and
Assembly)
Replace the
Go to Step 2 HARNESS
ASSY FDR2
Replace the
Go to Step 3 HARNESS
ASSY FDR5
Problem Replace the
solved HVPS/MCU
Confidential
130