Brother HL-2600CN Service Manual page 306

Error Code
Name of Part
Developer Clutch 2 (DCLM)
Confirm the connection of Connector.
Is the connection proper between ECN15 of IOD2 and Clutch (DCLM) ?
Is the harness of Clutch (DCLM) broken ?
Check the voltage at DCLM ON-N.
+24V
Does the voltage drop ( ) between ECN15-3 and ECN2-6?
Does the voltage jump ( ) between ECN1-2 and ECN2-8 ?
Replace current MCTL PWB 2 with a new PWB.
Is D2 Error cleared ?
Complete
D2
YES
NO
NO
YES
NO
Connect the harness.
Connect the connector properly.
Is D2 Error cleared ?
YES
Replace the clutch (DCLM) with a new clutch.
YES
Replace IOD2 PWB 2 with a new IOD2 PWB 2.
Is D2 Error cleared ?
NO
Re-check
MCTL
12CN
YES
NO
YES
NO
IOD2
ECN1 ECN15
DCL(M)ON-P
+24V-1
2 2 1
DCL(M)ON-N
3
ECN2
+24V-1 3
PGND
6
SGND
8
Complete
Complete
Developer Clutch 2 (M)
DCLM