Brother International HL-3400CN Service Manual - Page 283
Connector.
UPC - 012502526223
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HL-3400CN SERVICE MANUAL Error Code Name of Part D6 Developer Solenoid (PSL MC) Confirm the connection of Connector. Is the connection proper between ECN3 of 1OD2 and Solenoid (PSL KC) ? NO Connect the harness. Is the harness of Solenoid (PSL KC) broken ? YES Connect the connector properly. Check the voltage at (PSL KC) ON-N. 4
HL-3400CN
SERVICE
MANUAL
Error
Code
D6
Name
of
Part
Developer
Solenoid
(PSL
MC)
Confirm
the
connection
of
Connector.
Is
the
connection
proper
between
ECN3
of
1OD2
and
Solenoid
(PSL
KC)
?
Is
the
harness
of
Solenoid
(PSL
KC)
broken
?
YES
NO
Check
the
voltage
at
(PSL
KC)
ON
-N.
4
<Does
the
voltage
drop
(
-
L
+24V
)
between
ECN3-land
ECN2-6?
I
I
F
NO
<Does
the
voltage
jump
(2
—
)
between
ECN1-band
ECN2-8
?
NO
41
IF
Replace
current
MCTL
PCB
with
a
new
one.
Connect
the
harness.
Connect
the
connector
properly.
Is
D6
Error
cleared
?
NO
YES
YES
0
1
YES
Is
D6
Error
cleared
?
I
I,
YES
Complete
N
Replace
the
front
cover
unit
with
a
new
unit.
Replace
IOD2
PCB
with
a
new
one.
Is
D6
Error
cleared
?
Re
-check
MCTC
12CN
6
NO
0
IOD2
ECN1
ECN3
YES
Complete
0
Complete
PSL(MC)0N-P
6
8
+24V-1
PSL(MC)ON-N
PSL
MC
ECN2
+24V-1
3
PGND
6
SGND
8
8-25