Brother International HL-2400C Service Manual - Page 266
Is the connection between ECN3 of IOD2 and Solenoid PSL KC OK ?
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VIII-21 Error Code Name of Part D6 Developer Solenoid (PSL KC) Check the Connector. Is the connection between ECN3 of IOD2 and Solenoid (PSL KC) OK ? NO Is the harness of Solenoid (PSL KC) broken ? YES Check the voltage at (PSL KC) ON-N. Connect the harness. Connect the connector properly. Is D6 Error cleared ? YES NO Does the voltage drop( +24V)between ECN3-13 and ECN2-8? YES NO Replace the front cover unit with a new one Does the voltage jump( )between ECN1-6 and ECN2-12 ? NO YES Replace IOD2 PCB with a new one. Replace current MCTL PCB with a new one.. Is D6 Error cleared ? YES NO Is D6 Error cleared ? YES Finished NO Re-check from beginning of section. MCTC IOD2 12CN ECN1 ECN3 PSL(YM)ON-P 6 6 12 +24V-1 PSL(YM)ON-N 13 ECN2 +24V-1 5 PGND 8 SGND 12 Finished Finished PSL KC