Brother HL-2400C - Page 277

VIII-31
Error Code
Concerned Part
EL
Check the connection of the erase lamp connector.
Is DCN7 of IOD1 properly connected to the erase lamp ?
Is DCN1 of IOD1 properly connected with 11CN of MCTL PCB ?
Is the voltage between DCN7-11 and 9 a trailing edge ?
Is the voltage between DCN1-41 and 2 of IOD2 a rising edge ?
Is EL error cleared ?
Finished.
Is EL error cleared ?
Connect them properly.
Replace the MCTL PCB.
Finished.
MCTL
11CN
2
41
PGND
ELON-P
IOD1
DCN1
DCN7
EL
YES
NO
YES
NO
YES
NO
2
41
+24V-1
ELON-N
SGND
NO
Replace the LED PCB.
Replace the IOD1 PCB.
YES
YES
NO
10
11
9
Relay Connector
Erase Lamp
1
2
1
2
Erase Lamp (EL)
Check the voltage (ELON-N/P).