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5-12 Service Manual
4227-X00
Main Logic Board<-->Sub Logic Board (4227-200)
Main Logic Board
CN3
Sub Logic Board
CN3
Pin 1
HCSEL
Pin 2 Signal Gnd
Pin 3 HDTHERMO
Pin 4 R1COM
Pin 5 L1COM
Pin 6 R2COM
Pin 7 L2COM
Pin 8 L3COM
Pin 9 R3COM
Pin 10 L4COM
Pin 11 R4COM
Pin 12 L5COM
Pin 13 R5COM
Pin 14 L6COM
Pin 15 R6COM
Pin 16 L7COM
Pin 17 R7COM
Pin 18 L8COM
Pin 19 L8COM
Pin 20 L9COM
Pin 21 R9COM
Pin 22 BUZZER
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
Pin13L4COM
Pin12R4COM
Pin11L5COM
Pin10R5COM
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