dell latitude c840 User Manual
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![Page 71
RJ-11/RJ-45 Module: Dell Latitude C840 Service Manual
1vertical slot
2 modem cable
When replacing the system board, ensure that the network cable is safely\
above the
board and out of the way.
Back to Contents Page
file:///F|/Service%20Manuals/Dell/Latitude/c840/rj11_45b.htm (3 of 3) \
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RJ-11/RJ-45 Module: Dell Latitude C840 Service Manual
1vertical slot
2 modem cable
When replacing the system board, ensure that the network cable is safely\
above the
board and out of the way.
Back to Contents Page
file:///F|/Service%20Manuals/Dell/Latitude/c840/rj11_45b.htm (3 of 3) \
[2/28/2004 8:03:48 AM]")
![Page 72
Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
Back to Contents Page
Pin Assignments for I/O Connectors
Dell™ Latitude™ C840 Service Manual
USB Connector
Pin Signal
1 VCC
2 -Data
3 +Data
4 Ground
Serial Connector
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Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
Back to Contents Page
Pin Assignments for I/O Connectors
Dell™ Latitude™ C840 Service Manual
USB Connector
Pin Signal
1 VCC
2 -Data
3 +Data
4 Ground
Serial Connector
file:///F|/Service%20Manuals/Dell/Latitude/c840/pinouts.htm (1 of 10) \
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![Page 73
Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
Pin Signal PinSignal
1 DCD 6DSR
2 RXDA 7RTS
3 TXDA 8CTS
4 DTR 9RI
5 GND
Parallel Connector
Pin Signal PinSignal
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Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
Pin Signal PinSignal
1 DCD 6DSR
2 RXDA 7RTS
3 TXDA 8CTS
4 DTR 9RI
5 GND
Parallel Connector
Pin Signal PinSignal
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![Page 74
Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
1STRB# 11BUSY
2 PD0 12PE
3 PD1 13SLCT
4 PD2 14AFDF#
5 PD3 15ERROR#
6 PD4 16INIT#
7 PD5F 17SLCT_IN
8 PD6F 18-23GND
9 PD7F 24DFDD/LPT#
10 ACK# 25GND
Video Connector
Pin Signal PinSignal
1 RED 9CRT_VCC
2 GREEN 10GND
3 BLUE 11MSEN#
4 NC 12DAT_DDC2
5 GND 13HSYNC
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Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
1STRB# 11BUSY
2 PD0 12PE
3 PD1 13SLCT
4 PD2 14AFDF#
5 PD3 15ERROR#
6 PD4 16INIT#
7 PD5F 17SLCT_IN
8 PD6F 18-23GND
9 PD7F 24DFDD/LPT#
10 ACK# 25GND
Video Connector
Pin Signal PinSignal
1 RED 9CRT_VCC
2 GREEN 10GND
3 BLUE 11MSEN#
4 NC 12DAT_DDC2
5 GND 13HSYNC
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![Page 75
Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
6GND 14VSYNC
7 GND 15CLK_DDC2
8 GND
PS/2 Connector
Pin Signal
1 DAT_KBD
2 DAT_SM1
3 GND
4 PS2VCC
5 CLK_KBD
6 CLK_SM1
S-Video TV-Out Connector
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Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
6GND 14VSYNC
7 GND 15CLK_DDC2
8 GND
PS/2 Connector
Pin Signal
1 DAT_KBD
2 DAT_SM1
3 GND
4 PS2VCC
5 CLK_KBD
6 CLK_SM1
S-Video TV-Out Connector
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![Page 76
Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
S-Video
Pin Signal
1 GND
2 GND
3 DLUMA-L
4 DCRMA-L
Composite Video
Pin Signal
5 SPDIF
6 DCMPS-L
7 SPGND
Docking Connector
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Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
S-Video
Pin Signal
1 GND
2 GND
3 DLUMA-L
4 DCRMA-L
Composite Video
Pin Signal
5 SPDIF
6 DCMPS-L
7 SPGND
Docking Connector
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![Page 77
Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
Pin Signal PinSignal
1 STRB#/5V 101VGA_GRN
2 PD0 102GND
3 PD1 103VGA_RED
4 PD2 104GND
5 PD3 105VGA_BLU
6 PD4 106DOCK_SD/MODE
7 PD5 107D_IRTX
8 PD6 108D_IRRX
9 PD7 109GND
10 GND 110SPIRQB#
11 DOCK_SPKR 111SPIRQC#
12 DOCK_MIC 112DAT_DDC2
13 DOCK_LINE 113CLK_DDC2
14 DOCK_CDROM 114SPAR
15 GND 115SPME#
16 M_SEN# 116GND
17 POWER_SW# 117SSERR#
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Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
Pin Signal PinSignal
1 STRB#/5V 101VGA_GRN
2 PD0 102GND
3 PD1 103VGA_RED
4 PD2 104GND
5 PD3 105VGA_BLU
6 PD4 106DOCK_SD/MODE
7 PD5 107D_IRTX
8 PD6 108D_IRRX
9 PD7 109GND
10 GND 110SPIRQB#
11 DOCK_SPKR 111SPIRQC#
12 DOCK_MIC 112DAT_DDC2
13 DOCK_LINE 113CLK_DDC2
14 DOCK_CDROM 114SPAR
15 GND 115SPME#
16 M_SEN# 116GND
17 POWER_SW# 117SSERR#
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![Page 81
Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
99NC 199NC
100 NC 200GND
IEEE 1394 Connector
Pin Signal
1 TPB-
2 TPB+
3 TPA-
4 TPA+
Back to Contents Page
file:///F|/Service%20Manuals/Dell/Latitude/c840/pinouts.htm (10 of 10)\
[2/28/2004 8:03:50 AM]](http://img.usermanuals.tech/thumb/19/48086/w64_dell-latitude-c840-service-manual-80.png "Page 81
Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual
99NC 199NC
100 NC 200GND
IEEE 1394 Connector
Pin Signal
1 TPB-
2 TPB+
3 TPA-
4 TPA+
Back to Contents Page
file:///F|/Service%20Manuals/Dell/Latitude/c840/pinouts.htm (10 of 10)\
[2/28/2004 8:03:50 AM]")
Pin Assignments for I/O Connectors: Dell Latitude C840 Service Manual 99NC 199NC 100 NC 200GND IEEE 1394 Connector Pin Signal 1 TPB- 2 TPB+ 3 TPA- 4 TPA+ Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/c840/pinouts.htm (10 of 10)\ [2/28/2004 8:03:50 AM]