Brother International HL-2400C Service Manual - Page 276
Check the voltage ELON-N/P.
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VIII-31 Error Code Concerned Part EL Erase Lamp (EL) Check the connection of the erase lamp connector. NO Is DCN7 of IOD1 properly connected to the erase lamp ? Is DCN1 of IOD1 properly connected with 11CN of MCTL PCB ? YES Check the voltage (ELON-N/P). Is the voltage between DCN7-11 and 9 a trailing edge ? YES NO Is the voltage between DCN1-41 and 2 of IOD2 a rising edge ? YES NO Is EL error cleared ? NO YES Finished. Connect them properly. Is EL error cleared ? NO Replace the LED PCB. Replace the IOD1 PCB. Replace the MCTL PCB. YES Finished. Relay Connector MCTL IOD1 11CN DCN1 DCN7 2 PGND 2 41 ELON-P 41 10 +24V-1 1 11 ELON-N 2 1 9 SGND 2 Erase Lamp EL
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).