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Memory Modules, Mini PCI Card, and Modem: Dell Latitude C540/C640 Service Manual

Replacing the Memory Modules

1. If you only have one memory module, install it in the connector labeled "JDIM1"

on the system board. Install a second memory module in the connector labeled

"JDIM2."

NOTE:

Memory modules are keyed, or designed to fit into their sockets, in only

one direction.

NOTICE:

The memory module must be inserted at a 45-degree angle to avoid

damaging the connector.

2. Align the notch in the memory-module edge connector with the tab in the

socket.

3. Slide the edge connector of the module firmly into the socket at a

45-degree angle, and rotate the module down until it clicks into place. If you do

not feel the click, remove the module and reinstall it.

4. Replace the memory module cover and tighten the two captive screws.

Mini PCI Card

You must remove the Mini PCI card before the system board can be removed.

Removing the Mini PCI Card

NOTICE:

Disconnect the computer and any attached devices from electrical

outlets, and remove any installed batteries.

NOTICE:

To avoid ESD, ground yourself by using a wrist grounding strap or by

touching an unpainted metal surface on the computer.

file:///F|/Service%20Manuals/Dell/Latitude/c540-640/upgrades.htm (4 of 8) [2/28/2004 7:57:48 AM]

Содержание Latitude C540 Series

Страница 1: ...ry Flashing the BIOS Speaker Assemblies System Board Battery and Module Bay Latches Pin Assignments for I O Connectors Notes Notices and Cautions NOTE A NOTE indicates important information that helps you make better use of your computer NOTICE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem CAUTION A CAUTION indicates a potential for p...

Страница 2: ... trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own April 2003 Rev A01 file F Service 20Manuals Dell Latitude c540 640 index htm 2 of 2 2 28 2004 7 57 39 AM ...

Страница 3: ...orm the following steps before you begin working inside the computer 1 Ensure that the work surface is clean to prevent scratching the computer cover 2 Save any work in progress and exit all open programs 3 Turn off the computer and all attached devices NOTE Before turning off the computer ensure that the computer is not in a power management mode If you cannot shut down the computer using the com...

Страница 4: ...dary battery from the module bay if a secondary battery is in use 11 Remove any installed device in the module bay 12 To dissipate any static electricity while you work use a wrist grounding strap or periodically touch an unpainted metal surface 13 Handle components and cards with care Do not touch the components or contacts on a card Hold a card by it edges or by its metal mounting bracket Hold a...

Страница 5: ...ront 4 left Screw Identification When you are removing and replacing components photocopy the placemat as a tool to lay out and keep track of the screws The placemat provides the number of screws and their sizes file F Service 20Manuals Dell Latitude c540 640 begin htm 3 of 6 2 28 2004 7 57 45 AM ...

Страница 6: ... diameter and length Ensure that the screw is properly aligned with its corresponding hole and avoid overtightening Hard Drive Door 1 each Memory Module Cover 2 captive screws 1 each NOTE The single screw is one of the five keyboard screws file F Service 20Manuals Dell Latitude c540 640 begin htm 4 of 6 2 28 2004 7 57 45 AM ...

Страница 7: ... Board 2 each Keyboard to Bottom Case 5 each Hinges to Bottom Case 5 each Display Feed Flex Cable 4 each Display Bezel 6 each Rubber Screw Covers 6 each Display Panel to Top Cover 5 each file F Service 20Manuals Dell Latitude c540 640 begin htm 5 of 6 2 28 2004 7 57 45 AM ...

Страница 8: ...Manual Display Latch 2 each 2 each Palm Rest to Bottom Case 3 each 5 each Hybrid Cooling Fan 2 each 1 each System Board to Bottom Case 10 each Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 begin htm 6 of 6 2 28 2004 7 57 45 AM ...

Страница 9: ...hnician should perform repairs on your computer Damage due to servicing that is not authorized by Dell is not covered by your warranty NOTICE Unless otherwise noted each procedure in this document assumes that a part can be replaced by performing the removal procedure in reverse order file F Service 20Manuals Dell Latitude c540 640 system htm 1 of 2 2 28 2004 7 57 46 AM ...

Страница 10: ...or thermal cooling assembly 12 module bay device 4 hybrid cooling fan 13 main battery 5 microprocessor 14 hard drive 6 system board 15 left speaker 7 right speaker 16 palm rest 8 modem and network adapter connector cover 17 keyboard 9 fan guard Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 system htm 2 of 2 2 28 2004 7 57 46 AM ...

Страница 11: ...d drive case and avoid dropping it NOTICE Read Preparing to Work Inside the Computer before performing the following procedure NOTICE To prevent data loss turn off your computer before removing the hard drive Do not remove the hard drive while the computer is running in standby mode or in hibernate mode CAUTION If you remove the hard drive from the computer when the drive is hot do not touch the m...

Страница 12: ...g the Hard Drive NOTICE Use firm and even pressure to slide the hard drive into place If you force the hard drive into place using excessive force you may damage the connector 1 Lift the hard drive door until you hear a click Push the hard drive until it is fully seated in the hard drive bay 2 Press the hard drive door down file F Service 20Manuals Dell Latitude c540 640 hdd htm 2 of 3 2 28 2004 7...

Страница 13: ...d Drive Dell Latitude C540 C640 Service Manual 3 Replace the M3 x 5 mm screw in the hard drive door Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 hdd htm 3 of 3 2 28 2004 7 57 47 AM ...

Страница 14: ...D ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Turn the computer over and loosen the two captive screws from the memory module cover 2 Remove the M2 5 x 12 mm screw labeled circle K from the memory module cover This screw is also one of the fiv...

Страница 15: ...es from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the memory module cover file F Service 20Manuals Dell Latitude c540 640 upgrades htm 2 of 8 2 28 2004 7 57 48 ...

Страница 16: ...t secure the memory module 2 Use your fingertips to carefully spread apart the inner tabs on each end of the memory module socket The module should pop up 1 JDIM 2 memory socket 2 JDIM 1 memory socket 3 keying tab 4 keying notch 5 inner tabs 2 per socket 3 Lift the memory module out of its socket file F Service 20Manuals Dell Latitude c540 640 upgrades htm 3 of 8 2 28 2004 7 57 48 AM ...

Страница 17: ...he socket 3 Slide the edge connector of the module firmly into the socket at a 45 degree angle and rotate the module down until it clicks into place If you do not feel the click remove the module and reinstall it 4 Replace the memory module cover and tighten the two captive screws Mini PCI Card You must remove the Mini PCI card before the system board can be removed Removing the Mini PCI Card NOTI...

Страница 18: ...also covers the Mini PCI card 2 Disconnect the Mini PCI card from the antenna cables 3 To release a Mini PCI card from its socket spread apart the metal securing tabs until the card pops up slightly 4 Lift the Mini PCI card out of its connector 1 antenna connectors on card 2 2 antenna cables 2 Replacing the Mini PCI Card file F Service 20Manuals Dell Latitude c540 640 upgrades htm 5 of 8 2 28 2004...

Страница 19: ... Modem NOTICE Disconnect the computer and any attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Turn the computer over and remove the memory module cover...

Страница 20: ...onnector on the system board and disconnect the modem cable 1 M2 x 3 mm screws 2 2 modem connector 3 modem cable 4 pull tab Replacing the Modem 1 Connect the modem cable to the modem NOTICE The connectors are keyed for correct insertion do not force the connections file F Service 20Manuals Dell Latitude c540 640 upgrades htm 7 of 8 2 28 2004 7 57 48 AM ...

Страница 21: ...t the modem in the connector NOTICE Pressing down on the modem somewhere other than on the pull tab can break the modem 3 Install the two M2 x 3 mm screws that secure the modem to the system board 4 Replace the memory module cover and tighten the two captive screws Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 upgrades htm 8 of 8 2 28 2004 7 57 48 AM ...

Страница 22: ...y installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Turn the computer over and remove the five M2 5 x 12 mm screws labeled circle K file F Service 20Manuals Dell Latitude c540 640 keybo...

Страница 23: ...suming to replace Be careful when removing and handling the keyboard 4 Remove the center control cover a Insert a small flat blade screwdriver or plastic scribe into the notch at the right end of the center control cover and pry up the cover b Lift the center control cover up and away from the bottom case file F Service 20Manuals Dell Latitude c540 640 keyboard htm 2 of 6 2 28 2004 7 57 48 AM ...

Страница 24: ...l 5 To release the keyboard from the palm rest use a small flat blade screwdriver or plastic scribe to pry up the right edge of the keyboard near the blank key file F Service 20Manuals Dell Latitude c540 640 keyboard htm 3 of 6 2 28 2004 7 57 48 AM ...

Страница 25: ...t of the computer until the key face is resting on the palm rest NOTICE Do not pull on the keyboard flex and track stick cables 7 Pull up on the keyboard connector to disconnect it from the keyboard interface connector on the system board 1 boss supports 5 2 track stick cable 3 keyboard flex cable file F Service 20Manuals Dell Latitude c540 640 keyboard htm 4 of 6 2 28 2004 7 57 48 AM ...

Страница 26: ...owing the correct orientation of the keyboard connector relative to the display in the system board interface connector 3 Carefully turn the keyboard over Align the keyboard boss supports fit the left side of the keyboard into place and then snap the right side of the keyboard into place NOTICE Position the keyboard flex and track stick cables so that they are not pinched when you replace the keyb...

Страница 27: ...Keyboard Dell Latitude C540 C640 Service Manual Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 keyboard htm 6 of 6 2 28 2004 7 57 48 AM ...

Страница 28: ...ist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedureDisplay Assembly 1 Remove the hard drive 2 Remove the center control cover 3 Remove the keyboard 4 Close the display 5 From the back of the computer remove the five M2 5 x 5 mm screws labeled circle D 6 Open the display assembly ap...

Страница 29: ...s 2 2 top cover 3 center control cover 4 M2 5 x 5 mm screws 5 5 bottom case 6 display feed flex cable 7 EMI shield bracket 8 Remove the two M2 x 3 mm screws that secure the display feed flex cable to the system board file F Service 20Manuals Dell Latitude c540 640 display htm 2 of 12 2 28 2004 7 57 51 AM ...

Страница 30: ...nd right ends of the connector Pressing on the center of the connector may damage resistors and compromise EMI protection in the computer 1 M2 x 3 mm screws 2 2 pull tab 3 display feed cable connector 4 interface connector 9 Pull up on the pull tab that is attached to the display feed flex cable connector to file F Service 20Manuals Dell Latitude c540 640 display htm 3 of 12 2 28 2004 7 57 51 AM ...

Страница 31: ... C540 C640 Service Manual remove it from the interface connector on the system board 10 Pivot the display assembly up to a 90 degree angle and lift it out of the bottom case file F Service 20Manuals Dell Latitude c540 640 display htm 4 of 12 2 28 2004 7 57 51 AM ...

Страница 32: ...ore performing the following procedure 1 Remove the hard drive 2 Remove the display assembly 3 Use a plastic scribe to pry the six rubber screw covers out of the screw holes located on the front of the bezel 4 Remove the six M2 5 x 5 mm screws located on the front of the bezel NOTICE Carefully separate the bezel from the top cover to avoid damage to the bezel 5 Starting at the bottom of the displa...

Страница 33: ...crews on the left side of the display panel and the two M2 x 4 mm screws on the right side of the display panel NOTE If you have a Hitachi display panel remove the two M2 x 4 mm screws from the center of the left side of the display panel 6 Remove the M2 x 4 mm screw that secures the display feed flex cable through the black plastic flex cable retention bracket 7 Lift from the top and rotate the d...

Страница 34: ...5 inverter connector 9 Remove the tape that secures the display panel connector and the tape that secures the middle of the display feed flex cable to the display panel 10 Pull the top flex cable connector down and away to remove it from the display panel connector Replacing the Display Panel file F Service 20Manuals Dell Latitude c540 640 display htm 7 of 12 2 28 2004 7 57 51 AM ...

Страница 35: ... 6 Reinstall the five M2 x 4 mm screws that secure the display panel to the top cover Display Latch NOTICE Disconnect the computer and any attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer Removing the Display Latch 1 Remove the hard drive 2 Remov...

Страница 36: ...ts screw holes and then place the bracket on top of the display latch aligning the bracket and display latch screw holes On SXGA panels align the screw holes and place the display latch and attached bracket in the top cover 2 Replace the two M2 5 x 5 mm screws and the two M1 7 x 3 5 mm screws that secure the display latch and bracket to the top cover file F Service 20Manuals Dell Latitude c540 640...

Страница 37: ...s forward at an angle of approximately 90 degrees to the front of the display assembly 3 To remove the hinge covers slide them off the hinges Replacing the Hinge Covers 1 Attach the display assembly to the bottom case 2 Close the display 3 Snap the hinge covers in place over the hinges file F Service 20Manuals Dell Latitude c540 640 display htm 10 of 12 2 28 2004 7 57 51 AM ...

Страница 38: ...NOTE The right plastic hinge cover label includes an R and the left plastic hinge cover label includes an L The hinge cover labels face the back of the computer 1 right hinge cover 2 left hinge cover file F Service 20Manuals Dell Latitude c540 640 display htm 11 of 12 2 28 2004 7 57 51 AM ...

Страница 39: ...Display Assembly Display Latch and Hinge Covers Dell Latitude C540 C640 Service Manual Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 display htm 12 of 12 2 28 2004 7 57 51 AM ...

Страница 40: ...hing an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Remove the keyboard NOTICE You must remove the display assembly before you remove the palm rest the display hinges pass through the back of the palm rest 3 Remove the display assembly and hinge covers 4 Turn the computer over and remo...

Страница 41: ...a Remove the two M2 x 3 mm screws that are located on the back edge of the bottom case underneath the display assembly b Remove the M2 x 3 mm screw located near the right side of the bottom case next to the microprocessor thermal cooling assembly and opposite the S video TV out connector 7 Pull up on the pull tab that is attached to the palm rest flex cable connector to remove it from the interfac...

Страница 42: ...rest flex cable 4 bottom case 5 interface connector for palm rest flex cable 6 back center of the palm rest NOTICE Carefully separate the palm rest from the bottom case to avoid damage to the palm rest file F Service 20Manuals Dell Latitude c540 640 palmrest htm 3 of 4 2 28 2004 7 57 52 AM ...

Страница 43: ...k center of the palm rest use your fingers to separate the palm rest from the bottom case by lifting the inside of the palm rest while pushing in on the outside Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 palmrest htm 4 of 4 2 28 2004 7 57 52 AM ...

Страница 44: ...electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Remove the keyboard 3 Loosen the four captive screws that secure the microprocessor thermal cooling a...

Страница 45: ...cooling assembly 4 recess in EMI shield prying location 4 Insert a screwdriver into the recess in the EMI shield under the front left corner of the thermal cooling assembly and pry the assembly up and out of the system board Replacing the Microprocessor Thermal Cooling Assembly file F Service 20Manuals Dell Latitude c540 640 thermal htm 2 of 3 2 28 2004 7 57 52 AM ...

Страница 46: ...ling assembly along with a new microprocessor 1 Place the right side of the microprocessor thermal cooling assembly under the palm rest and lower the assembly onto the system board 2 Tighten the four captive screws labeled 1 through 4 in consecutive order Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 thermal htm 3 of 3 2 28 2004 7 57 52 AM ...

Страница 47: ...o Work Inside the Computer before performing the following procedure NOTICE To ensure proper thermal operation always install a new compatible thermal cooling assembly along with a new microprocessor NOTICE Do not touch the processor die To ensure proper seating of the microprocessor in the socket press down near the edges of the microprocessor module on the substrate surrounding the die while tur...

Страница 48: ...ZIF socket cam screw 1 Remove the hard drive 2 Remove the keyboard NOTICE To ensure maximum cooling for the microprocessor do not touch the heat transfer areas on the microprocessor thermal cooling assembly The oils in your skin reduce the heat transfer capability of the thermal pads file F Service 20Manuals Dell Latitude c540 640 cpu htm 2 of 4 2 28 2004 7 57 53 AM ...

Страница 49: ...Seating the microprocessor module properly in the ZIF socket does not require force NOTICE A microprocessor module that is not properly seated can result in an intermittent connection or permanent damage to the microprocessor and ZIF socket 1 Align the pin 1 corner of the microprocessor module with the pin 1 corner of the ZIF socket and insert the microprocessor module NOTE The pin 1 corner of the...

Страница 50: ...en the ZIF socket by turning the cam screw clockwise 3 Install a new microprocessor thermal cooling assembly NOTICE To ensure proper thermal operation always install a new compatible thermal cooling assembly along with a new microprocessor 4 Update the BIOS using the flash BIOS update floppy disk or CD For instructions on how to flash the BIOS see Flashing the BIOS Back to Contents Page file F Ser...

Страница 51: ...ing a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Remove the keyboard 3 Remove the display assembly 4 Remove the palm rest 5 Remove the microprocessor thermal cooling assembly 6 Remove the two M2 5 x 5 mm screws and one M2 x 3 mm screw that secur...

Страница 52: ...tem board interface connector and remove the hybrid cooling fan NOTE The fan power cable is long and can be pulled out from under the EMI shield to provide access to the connector NOTICE Do not block the keyboard screw hole when reinstalling the fan Route the fan power cable under the spring fingers and behind the keyboard screw hole to prevent damage to the fan power cable file F Service 20Manual...

Страница 53: ...Hybrid Cooling Fan Dell Latitude C540 C640 Service Manual Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 fan htm 3 of 3 2 28 2004 7 57 54 AM ...

Страница 54: ...ached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Remove the keyboard 3 Disconnect the reserve battery cable from the reserve batter...

Страница 55: ... battery cable 4 reserve battery connector on system board 5 speaker cables 6 opening for reserve battery cable Replacing the Reserve Battery 1 Connect the reserve battery cable to the reserve battery connector on the file F Service 20Manuals Dell Latitude c540 640 rsrvbatt htm 2 of 3 2 28 2004 7 57 54 AM ...

Страница 56: ...Remove the backing from the adhesive on the bottom of the reserve battery and press the battery into place in the battery tray 3 Update the BIOS using a flash BIOS update floppy disk or CD For instructions on how to flash the BIOS see Flashing the BIOS Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 rsrvbatt htm 3 of 3 2 28 2004 7 57 54 AM ...

Страница 57: ...equence to boot first from the floppy drive or the CD drive depending on whether your flash BIOS update is supplied on floppy disk or CD 4 Insert the flash BIOS update floppy disk or CD and reboot the computer The computer updates the BIOS and then automatically reboots 5 Immediately press to enter the system setup program and reset the boot sequence to the normal setting Then exit the system setu...

Страница 58: ...id ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure The speakers are located on the front left and right sides of the bottom case As you remove the speakers take note of the speaker assembly orientations and the antenna wire routing under the rou...

Страница 59: ...blies Dell Latitude C540 C640 Service Manual 1 right speaker 2 palm rest screw posts 2 3 bottom case holders 2 4 left speaker file F Service 20Manuals Dell Latitude c540 640 speakers htm 2 of 5 2 28 2004 7 57 56 AM ...

Страница 60: ...Speaker Assemblies Dell Latitude C540 C640 Service Manual file F Service 20Manuals Dell Latitude c540 640 speakers htm 3 of 5 2 28 2004 7 57 56 AM ...

Страница 61: ...s NOTICE Do not pull the antenna wire when removing the speaker NOTICE Handle the speaker assemblies and speakers carefully to avoid damaging the speaker cones 6 Remove the speaker assemblies by pulling them straight out of the bottom case 7 Remove the speakers from the holders by sliding the speakers out of the bottom of the holders NOTE The left speaker has an in line connector the left antenna ...

Страница 62: ...sembly is installed 2 Place the mounting ring over the front palm rest screw post 3 Slide the speaker assembly down into the bottom case NOTICE Ensure that the speaker wires are routed securely under their mounting clips Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 speakers htm 5 of 5 2 28 2004 7 57 56 AM ...

Страница 63: ...void ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Remove the keyboard 3 Remove the display assembly 4 Remove the palm rest 5 Remove the microprocessor thermal cooling assembly 6 Remove the microprocessor module 7 Rem...

Страница 64: ...5 x 5 mm screws 9 10 Turn the computer over and remove the M2 5 x 5 mm screw which is labeled circle B with an arrow on the front center of the system board by the battery connector file F Service 20Manuals Dell Latitude c540 640 sysboard htm 2 of 4 2 28 2004 7 57 56 AM ...

Страница 65: ...e 12 Pull the right side of the bottom case next to the audio connectors away from the system board as you simultaneously lift the front of the system board out and away from the bottom case Replacing the System Board 1 Install the microprocessor module on the replacement system board file F Service 20Manuals Dell Latitude c540 640 sysboard htm 3 of 4 2 28 2004 7 57 56 AM ...

Страница 66: ...d NOTE Route cables so that they will not be crimped or pinched when the complete assembly is put back together 4 Install the right and left speaker assemblies that came with the new system board in the bottom case 5 Replace the palm rest the keyboard the display assembly and the hard drive 6 Replace the module bay devices and any PC Cards or plastic blanks in the PC Card slot 7 Insert the flash B...

Страница 67: ...ng to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Remove the keyboard 3 Remove the display assembly 4 Remove the palm rest 5 To remove the latch release button use a plastic scribe to push inward on the snap tabs in the upper latch assembly until the latch release button is released from the bottom case To prevent the upper latch assembly from comin...

Страница 68: ... case 8 wear rib Replacing the Battery and Module Bay Latches 1 If you are replacing the upper latch assembly a Slide the spring onto the slider and install the upper latch assembly in the holding feature on the inside of the bottom case b Ensure that the slider is inserted into the hole that the side of the latch file F Service 20Manuals Dell Latitude c540 640 baylatch htm 2 of 3 2 28 2004 7 57 5...

Страница 69: ... if the slider is oriented incorrectly 2 Hold down the upper latch assembly and snap in the new latch release button through the bottom case ensuring that the snap tabs are fully engaged in the upper latch assembly 3 Ensure that the newly installed latch release button moves smoothly and freely when pushed and released Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 baylatch ...

Страница 70: ...ice Manual Back to Contents Page Pin Assignments for I O Connectors Dell Latitude C540 640 Service Manual USB Connector Pin Signal 1 VCC 2 Data 3 Data 4 Ground Serial Connector file F Service 20Manuals Dell Latitude c540 640 pinouts htm 1 of 10 2 28 2004 7 57 58 AM ...

Страница 71: ... Latitude C540 C640 Service Manual Pin Signal Pin Signal 1 DCD 6 DSR 2 RXDA 7 RTS 3 TXDA 8 CTS 4 DTR 9 RI 5 GND Parallel Connector Pin Signal Pin Signal file F Service 20Manuals Dell Latitude c540 640 pinouts htm 2 of 10 2 28 2004 7 57 58 AM ...

Страница 72: ...PD2 WP 14 AFDF 5 PD3 RDATA 15 ERROR HDSEL 6 PD4 DSKCHG 16 INIT DIR 7 PD5F 17 SLCT_IN STEP 8 PD6F 18 23 GND 9 PD7F 24 DFDD LPT 10 ACK DRV 25 GND Video Connector Pin Signal Pin Signal 1 RED 9 CRT_VCC 2 GREEN 10 GND 3 BLUE 11 MSEN 4 NC 12 DAT_DDC2 5 GND 13 HSYNC file F Service 20Manuals Dell Latitude c540 640 pinouts htm 3 of 10 2 28 2004 7 57 58 AM ...

Страница 73: ... C640 Service Manual 6 GND 14 VSYNC 7 GND 15 CLK_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 file F Service 20Manuals Dell Latitude c540 640 pinouts htm 4 of 10 2 28 2004 7 57 58 AM ...

Страница 74: ... Latitude C540 C640 Service Manual S Video Pin Signal 1 GND 2 GND 3 DLUMA L 4 DCRMA L Composite Video Pin Signal 5 NC 6 DCMPS L 7 GND Docking Connector file F Service 20Manuals Dell Latitude c540 640 pinouts htm 5 of 10 2 28 2004 7 57 58 AM ...

Страница 75: ... 104 GND 5 PD3 105 VGA_BLU 6 PD4 106 DOCK_SD MODE 7 PD5 107 D_IRTX 8 PD6 108 D_IRRX 9 PD7 109 GND 10 GND 110 SPIRQB 11 DOCK_SPKR 111 SPIRQC 12 DOCK_MIC 112 DAT_DDC2 13 DOCK_LINE 113 CLK_DDC2 14 DOCK_CDROM 114 SPAR 15 GND 115 SPME 16 M_SEN 116 GND 17 POWER_SW 117 SSERR file F Service 20Manuals Dell Latitude c540 640 pinouts htm 6 of 10 2 28 2004 7 57 58 AM ...

Страница 76: ... GND 28 DOCK_PWR_SRC 128 SGNTA 29 GND 129 SREQA 30 5VDOCK 130 SGNT0 31 5VDOCK 131 SREQ0 32 5VDOCK 132 SPCIRST 33 5VDOCK 133 SH1SEL 34 5VDOCK 134 GND 35 GND 135 SWRPRT 36 DOCK_PWR_SRC 136 SDSKCHG DRQ 37 DOCK_PWR_SRC 137 SDIR 38 DOCK_PWR_SRC 138 STRK0 39 DOCK_PWR_SRC 139 SSTEP 40 GND 140 SDRV1 41 DOCK_ DC_IN 141 GND 42 DOCK_ DC_IN 142 SMRT1 43 DOCK_ DC_IN 143 SWRDATA 44 DOCK_ DC_IN 144 SWGATE file F...

Страница 77: ...CI 53 GND 153 GND 54 DOCKED 154 SAD0 55 USB_VD1 155 SAD1 56 USB_VD1 156 SAD2 57 GND 157 SAD3 58 USB_VD2 158 SAD4 59 USB_VD2 159 SAD5 60 DOCKOCI 160 SAD6 61 RUN_ON 161 GND 62 GND 162 SAD7 63 NC 163 SAD8 64 DOCK_SCLK 164 SC BE0 65 DOCK_LRCK 165 SAD9 66 DOCK_MCLK 166 SAD10 67 GND 167 SAD11 68 12V 168 SAD12 69 AFD 169 GND 70 ERROR 170 SAD13 71 ACK 171 SAD14 file F Service 20Manuals Dell Latitude c540 ...

Страница 78: ...80 SAD20 81 SMB_INIT 181 SAD21 82 GND 182 GND 83 DAT_DOCKSM1 183 SAD22 84 CLK_DOCKSM1 184 SAD23 85 DAT_DOCKKBD 185 SAD24 86 CLK_DOCKKBD 186 SC BE3 87 GND 187 SAD25 88 RI0 188 GND 89 CTS0 189 SAD26 90 RTS0 190 SAD27 91 DSR0 191 SAD28 92 GND 192 SAD29 93 DTR0 193 SAD30 94 TXD0 194 SAD31 95 RXD0 195 GND 96 DCD0 196 NC 97 NC 197 NC 98 5VSUS 198 NC file F Service 20Manuals Dell Latitude c540 640 pinout...

Страница 79: ...signments for I O Connectors Dell Latitude C540 C640 Service Manual 99 NC 199 NC 100 NC 200 GND Back to Contents Page file F Service 20Manuals Dell Latitude c540 640 pinouts htm 10 of 10 2 28 2004 7 57 58 AM ...

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