Confidential
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4) Connector Pin Assignment
The connector in the machine to connect to the controller board is type
128A-064S2B-:L14A (DDK) or the equivalent.
<Connector pin assignment for video interface signals and
DC power supply (Engine side)>
Pin No.
Signal Name
Pin No.
Signal Name
1A PSGND
1B +5V
2A PSGND
2B +5V
3A PSGND
3B +3.3V
4A PSGND
4B +3.3V
5A PSGND
5B +3.3V
6A PSGND
6B +3.3V
7A PSGND
7B +3.3V
8A PSGND
8B +3.3V
9A VIDEO-P
9B VIDEO-N
10A RET(GND)
10B Reserve
11A Reserved
11B HSYNC-N
12A ID2-N
12B Reserve
13A RET(GND)
13B VSYNC-N
14A RET(GND)
14B Reserve
15A RET(GND)
15B STATUS
16A RET(GND)
16B IREADY-N
17A RET(GND)
17B Reserve
18A RET(GND)
18B COMMAND
19A RET(GND)
19B PRREQ-N
20A RET(GND)
20B Reserve
21A Reserved
21B Reserve
22A RET(GND)
22B KEY_STATUS-N
23A Reserved
23B Reserve
24A Reserved
24B Reserve
25A RET(GND)
25B Reserve
26A RET(GND)*
26B Reserve
27A RET(GND)
27B Reserve
28A RET(GND)*
28B +24V
29A RET(GND)
29B +24V
30A RET(GND)*
30B Reserve
31A RET(GND)
31B PGND
32A RET(GND)*
32B PGND
* Pin No. 26A, 28A, 30A and 32A should be connected to the GND at the LPC side.
Summary of Contents for MFC-9420CN
Page 1: ...Confidential FACSIMILE EQUIPMENT SERVICE MANUAL MODELS MFC 9420CN ...
Page 16: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Page 22: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 33: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 48: ...Confidential 3 1 4 CBV DBV Fig 3 16 Y M C K Fig 3 17 ...
Page 69: ...Confidential 3 3 5 Fig 3 35 ...
Page 73: ...Confidential 3 3 9 3 Interface Circuit Printer side Fig 3 38 ...
Page 82: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Page 85: ...Confidential 4 2 Cover page sample End page sample Fig 4 1 ...
Page 86: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 94: ...Confidential 5 5 5 1 1 AC Cord 1 Disconnect AC cord from the machine Fig 5 1 AC cord Machine ...
Page 175: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 203: ...Confidential CHAPTER 7 CLEANING ...
Page 205: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Page 213: ...8 6 Confidential Fig 8 2 Scanning Compensation Data List a b c d e f g h i j k l m n q ...
Page 224: ...8 17 Confidential Cover page sample End page sample Fig 8 8 ...
Page 255: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Page 279: ...Confidential 9 23 2 Image failure 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...
Page 280: ...Confidential 9 24 15 a 15 b 16 17 18 19 20 21 22 23 24 25 Fig 9 1 ...
Page 325: ...App 1 5 Confidential 6 Transfer Unit X X X X X X 7 1 2 3 Location SERIAL NO YEAR MONTH DATE ...
Page 398: ...B Power Supply PCB 100V 127V Confidential ...