dell latitude c400 User Manual
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![Page 53
System Board : Dell Latitude C400 Service Manual
12. Remove the two guide pins from the IDE connector.
13. Disconnect the cooling fan from the fan extender cable.
14. Disconnect the fan extender cable from the connector beside the internal\
memory socket.
15. Disconnect the reserve battery cable from the system board.
16. Remove the M2 x 4-mm screw that secures the right front corner of the sy\
stem board.
17. Disengage the system board from the back panel.
Replacing the System Board
While...](http://img.usermanuals.tech/thumb/19/48079/w64_dell-latitude-c400-service-manual-52.png "Page 53
System Board : Dell Latitude C400 Service Manual
12. Remove the two guide pins from the IDE connector.
13. Disconnect the cooling fan from the fan extender cable.
14. Disconnect the fan extender cable from the connector beside the internal\
memory socket.
15. Disconnect the reserve battery cable from the system board.
16. Remove the M2 x 4-mm screw that secures the right front corner of the sy\
stem board.
17. Disengage the system board from the back panel.
Replacing the System Board
While...")
![Page 55
Battery Latch : Dell Latitude C400 Service Manual
Battery Latch Removal
1 tension spring
2 bottom case
3 battery latch
4 battery release-button tabs
NOTICE: The tabs on the release button are plastic. When squeezing the tabs,
be careful not to break them.
11. On the inside of the bottom case, use needle-nose pliers to gently squee\
ze the two release-button tabs together and push the tabs down through the hole\
,
catching the release button on the outside of the bottom case.
12. To remove the...](http://img.usermanuals.tech/thumb/19/48079/w64_dell-latitude-c400-service-manual-54.png "Page 55
Battery Latch : Dell Latitude C400 Service Manual
Battery Latch Removal
1 tension spring
2 bottom case
3 battery latch
4 battery release-button tabs
NOTICE: The tabs on the release button are plastic. When squeezing the tabs,
be careful not to break them.
11. On the inside of the bottom case, use needle-nose pliers to gently squee\
ze the two release-button tabs together and push the tabs down through the hole\
,
catching the release button on the outside of the bottom case.
12. To remove the...")
![Page 56
Battery Latch : Dell Latitude C400 Service Manual
Replacing the Battery Latch
1. With the inside of the bottom case facing up, place the battery latch in\
position.
2. Turn the bottom case over and align the slot in the battery latch with t\
he release-button slot in the bottom case.
3. Holding the battery latch in place, press the release-button tabs throug\
h the underside of the bottom case and into the battery latch until the tabs s\
nap into
place.
4. Replace the tension spring.
Back to...](http://img.usermanuals.tech/thumb/19/48079/w64_dell-latitude-c400-service-manual-55.png "Page 56
Battery Latch : Dell Latitude C400 Service Manual
Replacing the Battery Latch
1. With the inside of the bottom case facing up, place the battery latch in\
position.
2. Turn the bottom case over and align the slot in the battery latch with t\
he release-button slot in the bottom case.
3. Holding the battery latch in place, press the release-button tabs throug\
h the underside of the bottom case and into the battery latch until the tabs s\
nap into
place.
4. Replace the tension spring.
Back to...")
![Page 57
Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual
Back to Contents Page
Pin Assignments for I/O Connectors
Dell™ Latitude™ C400 Service Manual
Serial ConnectorUSB Connector
Docking ConnectorIDE Module Bay Connector
Video Connector
Serial Connector
Pin Signal
1 DCD
2 RXDA
3 TXDA
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
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Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual
Back to Contents Page
Pin Assignments for I/O Connectors
Dell™ Latitude™ C400 Service Manual
Serial ConnectorUSB Connector
Docking ConnectorIDE Module Bay Connector
Video Connector
Serial Connector
Pin Signal
1 DCD
2 RXDA
3 TXDA
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
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2/28/2004 7:51:08 AM]")
![Page 60
Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual
49 GND
50 LOW_PWR
Video Connector
PinSignal
1 RED
2 GREEN
3 BLUE
4 NC
5 GND
6 GND
7 GND
8 GND Pin
Signal
9 CRT_VCC
10 GND
11 NC
12 DAT_DDC2
13 HSYNC
14 VSYNC
15 CLK_DDC2
USB Connector
file:///F|/Service%20Manuals/Dell/Latitude/c400/pinouts.htm (4 of 7) [\
2/28/2004 7:51:08 AM]](http://img.usermanuals.tech/thumb/19/48079/w64_dell-latitude-c400-service-manual-59.png "Page 60
Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual
49 GND
50 LOW_PWR
Video Connector
PinSignal
1 RED
2 GREEN
3 BLUE
4 NC
5 GND
6 GND
7 GND
8 GND Pin
Signal
9 CRT_VCC
10 GND
11 NC
12 DAT_DDC2
13 HSYNC
14 VSYNC
15 CLK_DDC2
USB Connector
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2/28/2004 7:51:08 AM]")
![Page 61
Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual
PinSignal
1 VCC
2 –DATA
3 +DATA
4 GROUND
IDE Module Bay Connector
Pin Signal
1 BAY_MODPRES#
2 HDSEL#
3 RDATA#
4 WRPRT#
5 WRDATA#
PinSignal
35 WGATE#
36 GND
37 MTR0#
38 STEP#
39 DRV0#
40 GND
41 DIR#
file:///F|/Service%20Manuals/Dell/Latitude/c400/pinouts.htm (5 of 7) [\
2/28/2004 7:51:08 AM]](http://img.usermanuals.tech/thumb/19/48079/w64_dell-latitude-c400-service-manual-60.png "Page 61
Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual
PinSignal
1 VCC
2 –DATA
3 +DATA
4 GROUND
IDE Module Bay Connector
Pin Signal
1 BAY_MODPRES#
2 HDSEL#
3 RDATA#
4 WRPRT#
5 WRDATA#
PinSignal
35 WGATE#
36 GND
37 MTR0#
38 STEP#
39 DRV0#
40 GND
41 DIR#
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2/28/2004 7:51:08 AM]")
![Page 63
Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual
Back to Contents Page
file:///F|/Service%20Manuals/Dell/Latitude/c400/pinouts.htm (7 of 7) [\
2/28/2004 7:51:08 AM]](http://img.usermanuals.tech/thumb/19/48079/w64_dell-latitude-c400-service-manual-62.png "Page 63
Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual
Back to Contents Page
file:///F|/Service%20Manuals/Dell/Latitude/c400/pinouts.htm (7 of 7) [\
2/28/2004 7:51:08 AM]")
Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual PinSignal 1 VCC 2 –DATA 3 +DATA 4 GROUND IDE Module Bay Connector Pin Signal 1 BAY_MODPRES# 2 HDSEL# 3 RDATA# 4 WRPRT# 5 WRDATA# PinSignal 35 WGATE# 36 GND 37 MTR0# 38 STEP# 39 DRV0# 40 GND 41 DIR# file:///F|/Service%20Manuals/Dell/Latitude/c400/pinouts.htm (5 of 7) [\ 2/28/2004 7:51:08 AM]
Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual 6 INDEX# 7 DSKCHG# 8 1D6M_EN# 9 SIDE_IOW# 10 SIDED15 11 SIDED12 12 SIDED9 13 SIDE_CS3# 14 SIDE_CS1# 15 +5VMOD 16 IRQ15 17 +5VMOD 18 SIDED0 19 +5VMOD 20 SIDED3 21 +5VMOD 22 SIDED6 23 +5VMOD 24 SIDE_A2 25 +5VMOD 26 SIDE_DACK# 27 +5VMOD 28 SIDE_IOR# 29 +5VMOD 30 SIDED14 31 +5VMOD 32 SIDED11 33 +5VMOD 34 MOD_CD_R 42 TRKO# 43 BAY_CD_FDD# 44 GND 45 SIDED1 46 SIDED4 47 SIDED7 48 GND 49 SIDEIORDY 50 GND 51 SIDE_DREQ 52 GND 53 SIDED13 54 SIDED10 55 IDE_RST_MOD_5V# 56 GND 57 SIDEACT# 58 SIDE_A1 59 SIDE_A0 60 GND 61 SIDE_CSEL_SEC# 62 SIDED2 63 SIDED5 64 GND 65 SIDED8 66 MOD_CL_L 67 CDGND 68 BAY_MODPRES# file:///F|/Service%20Manuals/Dell/Latitude/c400/pinouts.htm (6 of 7) [\ 2/28/2004 7:51:08 AM]
Pin Assignments for I/O Connectors: Dell Latitude C400 Service Manual Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/c400/pinouts.htm (7 of 7) [\ 2/28/2004 7:51:08 AM]