Brother International HL-2400C Service Manual - Page 115
Dcn1: Mctl Pcb - Iod1 Pcb 50 Pins
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(5) DCN1: MCTL PCB - IOD1 PCB (50 pins) Pin No. Signal Pin No. Signal 1 SGND 2 PGND 3 SGND 4 PGND 5 +5v - 1 6 +24v - 1 7 +5v - 1 8 HON - N 9 +5v - 1 10 SGND 11 +5v - 1 12 ACOFF - P 13 I/OAD2 14 +5v - 1R 15 I/OAD1 16 +24v 17 I/OAD0 18 RHSON 19 I/ODATA3 20 AHUMB 21 I/ODATA2 22 ACVON - N 23 I/ODATA1 24 CHVON - N 25 I/ODATA0 26 PWMON - P 27 TMLEDON - P 28 CBVPWM - N 29 LEDON - N 30 DBV(MC)PWM - N 31 TRSLON - P 32 DBV(KY)PWM - N 33 FBSLON - P 34 FCBVPWM - N 35 FBCLON - P 36 THVRON - N 37 SPSLLON - P 38 THVPWM - N 39 PKCLLON - P 40 THV - I 41 ELON - P 42 TH2 43 PBSEN - N 44 TH1 45 HPSEN - N 46 OILLES - P 47 CTFANON - P 48 TMASEN1 49 HTFANON - P 50 TMASEN2 (6) DCN9: IOD1 PCB - IOD2 PCB (14 pins) Pin No. Signal 1 FBCLON - P 2 FBSLON - P 3 TRSLON - P 4 OZFANERR 5 +24v - 1 6 +24v - 1 7 +24v - 1 8 PGND 9 PGND 10 PGND 11 +5v - 1 12 SGND 13 PHSON - P 14 AHUMB (7) DCN5: IOD1 - Upper Paper Empty Sensor IOD1 - Paper Feeding Sensor IOD1 - Drum Encoder Sensor Pin No. Signal 1 +5v - 1 2 HPSEN - N 3 SGND 4 +5v - 1 5 PEU - P 6 SGND 7 +5v - 1 8 PT1 - N 9 SGND IV-66