Brother International HL-2400C Service Manual - Page 283
L1 Beam Detecting Error
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Error Code Concerned Part L1 (Beam Detecting Error) Scanner Unit Check the connection of the scanner unit connector. NO Is the connector PDCN properly connected ? Are the connector LCN1 and LCN of MCTL properly connected ? YES Replace the scanner unit. Is L1 error cleared ? YES NO Replace the MCTL PCB. Connect the connector properly. Is L1 error cleared ? YES NO Finished. VIII-38 MCTL LCN PD SGND +5V-1R BDT LDU PDCN LCN1 20 LCN3 Optical Unit SM SM
VIII-38
Error Code
Concerned Part
Scanner Unit
Check the connection of the scanner unit connector.
Is the connector PDCN properly connected ?
Are the connector LCN1 and LCN of MCTL properly connected ?
Replace the scanner unit.
Is L1 error cleared ?
Is L1 error cleared ?
Connect the connector properly.
MCTL
LCN
SGND
BDT
LDU
PDCN
LCN3
SM
YES
YES
NO
NO
NO
Replace the MCTL PCB.
PD
LCN1
+5V-1R
Optical Unit
SM
YES
20
L1 (Beam Detecting Error)
Finished.