Brother International HL-3400CN Service Manual - Page 281
ECN1-4
UPC - 012502526223
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HL-3400CN SERVICE MANUAL Error Code D4 Name of Part Developer Clutch (DCLK) 4 Confirm the connection of Connector. Is the connection proper between ECN13 of 1OD2 and Clutch (DCLK) ? NO Is the harness of Clutch (DCLK) broken ? YES Connect the harness. Connect the connector properly. YES Is D4 Error cleared ? NO V Check the voltage at DCLK ON-N. 4
HL-3400CN
SERVICE
MANUAL
Error
Code
D4
Name
of
Part
Developer
Clutch
(DCLK)
4
Confirm
the
connection
of
Connector.
Is
the
connection
proper
between
ECN13
of
1OD2
and
Clutch
(DCLK)
?
Is
the
harness
of
Clutch
(DCLK)
broken
?
YES
NO
Connect
the
harness.
Connect
the
connector
properly.
Is
D4
Error
cleared
?
V
Check
the
voltage
at
DCLK
ON
-N.
4
<Does
the
voltage
drop
CU
24V
)
between
ECN13-4
and
ECN2-63
4N0
<Does
the
voltage
jump
(5
)
between
ECN1-4
and
ECN2-12
?›
YES
YES
NO
YES
O
N
4
V
Replace
current
MCTL
PCB
with
a
new
one.
4
Is
D4
Error
cleared
?
vy
YES
NO
Replace
the
clutch
(DCLK)
with
a
new
clutch.
po.
Replace
1OD2
PCB
with
a
new
one.
Is
D4
Error
cleared
?
Complete
Re
-check
MCTL
NO
12CN
4
8
DCL(K)ON-P
10D2
YES
Complete
+24V-1
PGND
SGND
ECN1
ECN13
4
1
3
ECN2
3
6
8
0
+24V-1
Complete
DCL(K)ON-P
co
8-23