System Information Guide
Page 8
...be manufactured with a minimum wire size of 26 American wire gauge (AWG) and an FCCcompliant RJ-11 modular plug. • Before you open the memory module/Mini PCI card/modem cover on the bottom of this computer. Do not use your computer during normal operation. Clean your computer has both... the electrical outlet, and remove any battery installed in the battery bay or module bay. 6 System Information Guide Power • Use only the Dell-provided AC adapter approved for use liquid or aerosol cleaners, which look alike, make sure you insert the telephone cable into the RJ-11 connector...
...be manufactured with a minimum wire size of 26 American wire gauge (AWG) and an FCCcompliant RJ-11 modular plug. • Before you open the memory module/Mini PCI card/modem cover on the bottom of this computer. Do not use your computer during normal operation. Clean your computer has both... the electrical outlet, and remove any battery installed in the battery bay or module bay. 6 System Information Guide Power • Use only the Dell-provided AC adapter approved for use liquid or aerosol cleaners, which look alike, make sure you insert the telephone cable into the RJ-11 connector...
System Information Guide
Page 10
...on board an aircraft. Static electricity can harm electronic components inside your computer. You can do so by airline personnel with Dell TrueMobile™ or some other electromagnetic signals while on the computer's input/output panel. 8 System Information Guide Some airlines ...aircraft and follow the airline's specific instructions as any PED, such as a memory module. For example, such regulations/restrictions may prohibit the use of a PED is available from Dell. www.dell.com | support.dell.com CAUTION: Safety Instructions (continued) Air Travel • Certain Federal Aviation...
...on board an aircraft. Static electricity can harm electronic components inside your computer. You can do so by airline personnel with Dell TrueMobile™ or some other electromagnetic signals while on the computer's input/output panel. 8 System Information Guide Some airlines ...aircraft and follow the airline's specific instructions as any PED, such as a memory module. For example, such regulations/restrictions may prohibit the use of a PED is available from Dell. www.dell.com | support.dell.com CAUTION: Safety Instructions (continued) Air Travel • Certain Federal Aviation...
System Information Guide
Page 11
...the hard drive removed from high-temperature conditions into a warmer environment or from the computer, wrap the drive in a nonconducting material, such as a memory module by hand, be ready to install the drive in the battery bay or module bay, and then wait 5 seconds before proceeding to help ...sure to have the drive checked by its edges, not its strain-relief loop, not on its pins. • When preparing to remove a memory module from the system board or disconnect a device from environmental hazards such as baggage. If you pull out the connector, keep it to other mechanical...
...the hard drive removed from high-temperature conditions into a warmer environment or from the computer, wrap the drive in a nonconducting material, such as a memory module by hand, be ready to install the drive in the battery bay or module bay, and then wait 5 seconds before proceeding to help ...sure to have the drive checked by its edges, not its strain-relief loop, not on its pins. • When preparing to remove a memory module from the system board or disconnect a device from environmental hazards such as baggage. If you pull out the connector, keep it to other mechanical...
System Information Guide
Page 12
...if necessary, the second battery from the display quickly and keep the display dry. When Working Inside Your Computer Before removing or installing memory modules, Mini PCI cards, or modems, perform the following these procedures, you should ever access the inside of time may result in... the online User's Guide. For comfort and efficiency, observe the ergonomic guidelines in eye strain. www.dell.com | support.dell.com When Using Your Computer (continued) • Clean the display with a soft, clean cloth and water. Ergonomic Computing Habits CAUTION:...
...if necessary, the second battery from the display quickly and keep the display dry. When Working Inside Your Computer Before removing or installing memory modules, Mini PCI cards, or modems, perform the following these procedures, you should ever access the inside of time may result in... the online User's Guide. For comfort and efficiency, observe the ergonomic guidelines in eye strain. www.dell.com | support.dell.com When Using Your Computer (continued) • Clean the display with a soft, clean cloth and water. Ergonomic Computing Habits CAUTION:...
System Information Guide
Page 13
... to remove any static charge your computer. To prevent static damage, discharge static electricity from your computer's electronic components, such as a memory module. As you continue to work , periodically touch the unpainted metal surface to dissipate any static electricity that you touch any of the...be sure to replace it is very possible that might harm internal components. For instructions about replacing the lithium-ion battery in your Dell User's Guide. You can do not remove the component from the antistatic packing material until you need to install the component. ...
... to remove any static charge your computer. To prevent static damage, discharge static electricity from your computer's electronic components, such as a memory module. As you continue to work , periodically touch the unpainted metal surface to dissipate any static electricity that you touch any of the...be sure to replace it is very possible that might harm internal components. For instructions about replacing the lithium-ion battery in your Dell User's Guide. You can do not remove the component from the antistatic packing material until you need to install the component. ...
System Information Guide
Page 22
www.dell.com | support.dell.com Bottom View 2 1 3 4 1 memory module and modem cover 2 device release latches 3 Mini PCI card cover 4 docking device latch 20 System Infor mation Guide
www.dell.com | support.dell.com Bottom View 2 1 3 4 1 memory module and modem cover 2 device release latches 3 Mini PCI card cover 4 docking device latch 20 System Infor mation Guide
System Information Guide
Page 28
..., and Value Added Resellers (VARs): Technical Support and Customer Service Government and Education Customers: Technical Support and Customer Service Dell-Branded Memory U.S. This limited warranty lasts for the time period indicated on your Dell service tag number or order number available. Before the warranty expires, please call us at its discretion, but any...
..., and Value Added Resellers (VARs): Technical Support and Customer Service Government and Education Customers: Technical Support and Customer Service Dell-Branded Memory U.S. This limited warranty lasts for the time period indicated on your Dell service tag number or order number available. Before the warranty expires, please call us at its discretion, but any...
System Information Guide
Page 30
...I transfer the limited warranty? A different return policy applies to nondefective products purchased through an employee purchase program, go to www.dell.com/us/en/biz/topics/sbtopic_ccare_nav_015_ccare.htm • If you are still not satisfied, we offer a "Total Satisfaction" return policy... education, and healthcare customers. Only) We value our relationship with third parties), Dell's advertising, or any court of our Small and Medium Business divisions. We pride ourselves on Dell-branded memory may be returned within thirty days from the invoice date, but a fifteen percent...
...I transfer the limited warranty? A different return policy applies to nondefective products purchased through an employee purchase program, go to www.dell.com/us/en/biz/topics/sbtopic_ccare_nav_015_ccare.htm • If you are still not satisfied, we offer a "Total Satisfaction" return policy... education, and healthcare customers. Only) We value our relationship with third parties), Dell's advertising, or any court of our Small and Medium Business divisions. We pride ourselves on Dell-branded memory may be returned within thirty days from the invoice date, but a fifteen percent...
System Information Guide
Page 33
... Technical Support Customer Service Government or Education Customers, or Individual Home Consumers who purchased through an Employee Purchase Program: Technical Support Customer Service Dell-Branded Memory Canada Only 1-800-847-4096 1-800-387-5757 1-800-326-9463 1-800-387-5757 1-800-326-9463 (Extension 8221 for any..., we are not responsible for Individual Consumers) 1-888-363-5150 What will notify you and inform you . Please also have your Dell service tag number or order number available. Otherwise, we will ship the product to us at the relevant number listed in the product...
... Technical Support Customer Service Government or Education Customers, or Individual Home Consumers who purchased through an Employee Purchase Program: Technical Support Customer Service Dell-Branded Memory Canada Only 1-800-847-4096 1-800-387-5757 1-800-326-9463 1-800-387-5757 1-800-326-9463 (Extension 8221 for any..., we are not responsible for Individual Consumers) 1-888-363-5150 What will notify you and inform you . Please also have your Dell service tag number or order number available. Otherwise, we will ship the product to us at the relevant number listed in the product...
System Information Guide
Page 35
...product purchase price. It also does not apply to products purchased through an Employee Purchase Program, go to www.dell.com/us . Limited warranties on Dell-branded memory may contain different terms for a refund or credit only if the sealed package containing the floppy disk(s) or CD...(s) is unopened. You may have Internet access, please call Dell Customer Service at 1-800-326-9463. "Total Satisfaction" Return Policy...
...product purchase price. It also does not apply to products purchased through an Employee Purchase Program, go to www.dell.com/us . Limited warranties on Dell-branded memory may contain different terms for a refund or credit only if the sealed package containing the floppy disk(s) or CD...(s) is unopened. You may have Internet access, please call Dell Customer Service at 1-800-326-9463. "Total Satisfaction" Return Policy...
System Information Guide
Page 36
... are covered by the warranties provided by various manufacturers in as monitors, batteries, memory, docking stations, and projectors). You must ship the Dell Software and Peripherals products back to Dell in their original manufacturer's packaging (which proper claims are in accordance with the...manufacturer warranties vary from the date of invoice for a refund of one year from the manufacturer or publisher. www.dell.com | support.dell.com Dell Software and Peripherals (Canada Only) Third-Party Software and Peripherals Products Similar to other items included with a product ...
... are covered by the warranties provided by various manufacturers in as monitors, batteries, memory, docking stations, and projectors). You must ship the Dell Software and Peripherals products back to Dell in their original manufacturer's packaging (which proper claims are in accordance with the...manufacturer warranties vary from the date of invoice for a refund of one year from the manufacturer or publisher. www.dell.com | support.dell.com Dell Software and Peripherals (Canada Only) Third-Party Software and Peripherals Products Similar to other items included with a product ...
Service Manual
Page 1
Dell Latitude C840 Service Manual Dell™ Latitude™ C840 Service Manual Before You Begin Preparing to Work Inside the Computer Recommended Tools Computer Orientation Screw Identification System Components Hard Drive and Fixed Optical Drive Hard Drive Fixed Optical Drive System Upgrades Memory Modules Modem Daughter Card Mini PCI Card Keyboard Display Display Overview Hinge ...Battery and Module Bay Latches Battery Charger Board LED Board Fan RJ-11/RJ-45 Module Pin Assignments for I/O Connectors file:///F|/Service%20Manuals/Dell/Latitude/c840/index.htm (1 of 2) [2/28/2004 8:03:26 AM]
Dell Latitude C840 Service Manual Dell™ Latitude™ C840 Service Manual Before You Begin Preparing to Work Inside the Computer Recommended Tools Computer Orientation Screw Identification System Components Hard Drive and Fixed Optical Drive Hard Drive Fixed Optical Drive System Upgrades Memory Modules Modem Daughter Card Mini PCI Card Keyboard Display Display Overview Hinge ...Battery and Module Bay Latches Battery Charger Board LED Board Fan RJ-11/RJ-45 Module Pin Assignments for I/O Connectors file:///F|/Service%20Manuals/Dell/Latitude/c840/index.htm (1 of 2) [2/28/2004 8:03:26 AM]
Service Manual
Page 5
Before You Begin: Dell Latitude C840 Service Manual NOTICE: When reinstalling a screw, you must use a screw of 6) [2/28/2004 8:03:35 AM] Hard-Drive Door Security: M3 x 5 mm (1 each) Keyboard to ... its corresponding hole, and avoid overtightening. one in memory door and one in Mini PCI door) Display to Bottom Case: M2.5 x 6 mm (3 each; 2 at back of computer; 1 at display flex-cable strain relief) Display Bezel: Display Panel to Top Cover: file:///F|/Service%20Manuals/Dell/Latitude/c840/begin.htm (4 of the correct diameter and length...
Before You Begin: Dell Latitude C840 Service Manual NOTICE: When reinstalling a screw, you must use a screw of 6) [2/28/2004 8:03:35 AM] Hard-Drive Door Security: M3 x 5 mm (1 each) Keyboard to ... its corresponding hole, and avoid overtightening. one in memory door and one in Mini PCI door) Display to Bottom Case: M2.5 x 6 mm (3 each; 2 at back of computer; 1 at display flex-cable strain relief) Display Bezel: Display Panel to Top Cover: file:///F|/Service%20Manuals/Dell/Latitude/c840/begin.htm (4 of the correct diameter and length...
Service Manual
Page 6
Before You Begin: Dell Latitude C840 Service Manual M2.5 x 4 mm (1 each) Palm Rest to Bottom Case: M2.5 x 20 mm (9 each) System Board: M2.5 x 4 mm captive washer (3 each) LED Board: M2 x 4 mm (2 each) Palm Rest Bracket: M2.5 x 4 mm (4 each) M2.5 x 20 mm (1 each) Fan: M2 x 4 mm (3 each) Memory Module/Modem Cover: M2.5 x 20 mm (1 each) Modem Daughter Card: M2 x 3 mm (1 each) Mini PCI Card: M2.5 x 20 mm (1 each) Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/c840/begin.htm (5 of 6) [2/28/2004 8:03:35 AM]
Before You Begin: Dell Latitude C840 Service Manual M2.5 x 4 mm (1 each) Palm Rest to Bottom Case: M2.5 x 20 mm (9 each) System Board: M2.5 x 4 mm captive washer (3 each) LED Board: M2 x 4 mm (2 each) Palm Rest Bracket: M2.5 x 4 mm (4 each) M2.5 x 20 mm (1 each) Fan: M2 x 4 mm (3 each) Memory Module/Modem Cover: M2.5 x 20 mm (1 each) Modem Daughter Card: M2 x 3 mm (1 each) Mini PCI Card: M2.5 x 20 mm (1 each) Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/c840/begin.htm (5 of 6) [2/28/2004 8:03:35 AM]
Service Manual
Page 14
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer. Removing the Memory Module/Modem Cover file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (1 of 9) [2/28/2004 8:03:38 AM] System Upgrades: Dell Latitude C840 Service Manual Back to Contents Page System Upgrades Dell™ Latitude™ C840 Service Manual Memory Modules Modem Daughter Card Mini PCI Card Memory Modules 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 periodically touching unpainted metal on the computer. Removing the Memory Module/Modem Cover file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (1 of 9) [2/28/2004 8:03:38 AM] System Upgrades: Dell Latitude C840 Service Manual Back to Contents Page System Upgrades Dell™ Latitude™ C840 Service Manual Memory Modules Modem Daughter Card Mini PCI Card Memory Modules NOTICE: Disconnect the computer and any attached devices from electrical outlets and remove any installed batteries.
Service Manual
Page 15
Remove the M2.5 x 20-mm screw from the memory module/modem cover. 3. file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (2 of the cover. Disengage the metal tabs at the opposite end of 9) [2/28/2004 8:03:38 AM] Follow the instructions in "Preparing to Work Inside the Computer." 2. System Upgrades: Dell Latitude C840 Service Manual 1 M2.5 x 20-mm screw 1.
Remove the M2.5 x 20-mm screw from the memory module/modem cover. 3. file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (2 of the cover. Disengage the metal tabs at the opposite end of 9) [2/28/2004 8:03:38 AM] Follow the instructions in "Preparing to Work Inside the Computer." 2. System Upgrades: Dell Latitude C840 Service Manual 1 M2.5 x 20-mm screw 1.
Service Manual
Page 16
Lift the memory module out of the module until the module pops up slightly. 3. Remove the memory module/modem cover. 2. To release a memory module from its socket, spread apart the tabs at each side of its socket. file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (3 of 9) [2/28/2004 8:03:38 AM] System Upgrades: Dell Latitude C840 Service Manual 1 DIMM B 2 memory module sockets (2) 3 DIMM A socket 4 modem daughter card 5 metal tabs (2 per socket) Removing the Memory Modules 1.
Lift the memory module out of the module until the module pops up slightly. 3. Remove the memory module/modem cover. 2. To release a memory module from its socket, spread apart the tabs at each side of its socket. file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (3 of 9) [2/28/2004 8:03:38 AM] System Upgrades: Dell Latitude C840 Service Manual 1 DIMM B 2 memory module sockets (2) 3 DIMM A socket 4 modem daughter card 5 metal tabs (2 per socket) Removing the Memory Modules 1.
Service Manual
Page 17
.../modem cover. Pivot the module down , and replace the M2.5 x 20-mm screw. file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (4 of 9) [2/28/2004 8:03:38 AM] NOTE: Memory modules are keyed to Work Inside the Computer." 2. NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by periodically touching unpainted metal...
.../modem cover. Pivot the module down , and replace the M2.5 x 20-mm screw. file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (4 of 9) [2/28/2004 8:03:38 AM] NOTE: Memory modules are keyed to Work Inside the Computer." 2. NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by periodically touching unpainted metal...
Service Manual
Page 19
System Upgrades: Dell Latitude C840 Service Manual 2. A wireless modem card must remove the optional Mini PCI wireless modem (if installed) before the system board can be connected to the internal ... metal on the system board. 3. Mini PCI Card You must be removed. Mini PCI Card Cover file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (6 of the modem daughter card to the system board. 4. Replace the memory module/modem cover. Use the screw and boss holes at opposite corners of 9) [2/28/2004 8:03:38 AM]
System Upgrades: Dell Latitude C840 Service Manual 2. A wireless modem card must remove the optional Mini PCI wireless modem (if installed) before the system board can be connected to the internal ... metal on the system board. 3. Mini PCI Card You must be removed. Mini PCI Card Cover file:///F|/Service%20Manuals/Dell/Latitude/c840/upgrades.htm (6 of the modem daughter card to the system board. 4. Replace the memory module/modem cover. Use the screw and boss holes at opposite corners of 9) [2/28/2004 8:03:38 AM]
Service Manual
Page 56
Remove (if migrating) or disconnect the modem daughter card. 6. Remove the palm rest. 10. file:///F|/Service%20Manuals/Dell/Latitude/c840/sysboard.htm (2 of the computer. The replacement kit for the system board includes a floppy disk or CD that ... 7. Remove the display assembly. 9. Remove any installed Mini PCI Cards. 4. Remove the video graphics board. 11. If migrating the memory, remove all installed memory modules. 5. System Board: Dell Latitude C840 Service Manual 2 system board 3 network connector 4 modem connector 5 network cable cover 6 M2.5 x 20-mm screw The BIOS chip ...
Remove (if migrating) or disconnect the modem daughter card. 6. Remove the palm rest. 10. file:///F|/Service%20Manuals/Dell/Latitude/c840/sysboard.htm (2 of the computer. The replacement kit for the system board includes a floppy disk or CD that ... 7. Remove the display assembly. 9. Remove any installed Mini PCI Cards. 4. Remove the video graphics board. 11. If migrating the memory, remove all installed memory modules. 5. System Board: Dell Latitude C840 Service Manual 2 system board 3 network connector 4 modem connector 5 network cable cover 6 M2.5 x 20-mm screw The BIOS chip ...