NEC Super Script 4400, Maintenance Manual

Page: 252 / 317

Service Error Codes 243
TROUBLESHOO
TING
1. Check the connections between:
a) ECN10 of IOD2 and the solenoid connector .
b) ECN2 of IOD2 and DCN9 of IOD1 .
c) ECN1 of IOD1 and 11CN of MCTL P.W.B.
3. If voltage between ECN10-4 and 8 of
IOD2 is trailing edge then replace the
c
leaning brush solenoid.
4. If voltage between ECN2-2 and 12 of IOD2
is rising edge then replace the IOD2 P.W.B.
5. If voltage between ECN1-33 and 1 of IOD1
is rising edge then replace the IOD1 P.W.B.
6. Replace MCTL PWB
E5
Code Description of Error Cause of Error Clearance Method
Cleaning Brush Solenoid E6
1. Loose/Broken connection
3. Cleaning Brush Solenoid
4. IOD2 Failure
5. IOD1 Failure
6. MCTL PWB Failure
Transfer Solenoid 1. Loose/Broken connection
3. Defective Transfer
Solenoid
4. IOD2 Failure
5. IOD1 Failure
6. MCTL PWB Failure
1. Check the connections between:
a) ECN8 of IOD2 and the solenoid connector .
b) ECN2 of IOD2 and DCN9 of IOD1 .
c) DCN1 of IOD1 and 11CN of MCTL P.W.B.
3. If voltage between ECN8-4 and ECN2-8 of
IOD2 is trailing edge then replace the
transfer solenoid.
4. If voltage between ECN2-3 and 12 of IOD2
is rising edge then replace the IOD2 P.W.B.
5. If voltage between ECN2-31 and 1 of IOD1
is rising edge then replace the IOD1 P.W.B.
6. Replace MCTL PWB
MCTL
11CN
1
31
SGND
TRSLON-P
IOD1
DCN1 DCN9
3
8
12
IOD2
TRSL
3
8
12
1
31
TRSLON-N
PGND
SGND
ECN2
1
4
ECN8
TRSLON-N
+24V-1
Transfer Solenoid
MCTL
11CN
1
33
SGND
FBSLON-P
IOD1
DCN1 DCN9
2
8
12
IOD2
FBSL
2
8
12
1
33
FBSLON-P
PGND
SGND
ECN2
1
4
ECN10
FBSLON-N
+24V-1
Drum Cleaner
Solenoid