Lexmark 4227 Service Manual - Page 112
Main Logic Board, Not Used
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UPC - 734646117104
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4227-300 Main Logic BoardSub Logic Board Main Logic Board CN3 Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 Pin 11 Pin 12 Pin 13 Pin 14 Pin 15 Pin 16 Pin 17 Pin 18 Pin 19 Pin 20 Pin 21 Pin 22 HCSEL Signal Gnd HDTHERMO R1COM L1COM R2COM L2COM L3COM R3COM L4COM R4COM L5COM R5COM L6COM R6COM L7COM R7COM L8COM L8COM L9COM R9COM BUZZER Sub Logic Board CN3 Pin 22 HCSEL Pin 21 Signal Gnd Pin 20 HDTHERMO Pin 19 R1COM Pin 18 L1COM Pin 17 R2COM Pin 16 L2COM Pin 15 L3COM Pin 14 R3COM Pin 13 L4COM Pin 12 R4COM Pin 11 L5COM Pin 10 R5COM Pin 9 L6COM Pin 8 R6COM Pin 7 L7COM Pin 6 R7COM Pin 5 L8COM Pin 4 R8COM Pin 3 L9COM Pin 2 R9COM Pin 1 BUZZER Main Logic BoardPaper Select Sensor Pin 1 Pin 2 Pin 3 Pin 4 CN4 Not Used Signal Gnd FRETRA Signal Gnd 6-8 Service Manual
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