Dell Latitude LAPTOP C 540 640 C540 C640 Service Manual
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Dell Latitude C540/C640 Service
Manual
Before You Begin
System Components
Hard Drive
Memory Modules, Mini PCI Card, and Modem
Keyboard
Display Assembly, Display Latch, and Hinge Covers
Palm Rest
Microprocessor Thermal Cooling Assembly
Microprocessor Module
Hybrid Cooling Fan
Reserve Battery
Flashing the BIOS
Speaker Assemblies
System Board
Battery and Module Bay Latches
Pin Assignments for I/O Connectors
Manual
Before You Begin
System Components
Hard Drive
Memory Modules, Mini PCI Card, and Modem
Keyboard
Display Assembly, Display Latch, and Hinge Covers
Palm Rest
Microprocessor Thermal Cooling Assembly
Microprocessor Module
Hybrid Cooling Fan
Reserve Battery
Flashing the BIOS
Speaker Assemblies
System Board
Battery and Module Bay Latches
Pin Assignments for I/O Connectors
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Before You Begin: Dell Latitude C540/C640 Service Manual 6. To avoid possible damage to the system board, wait 10 to 20 seconds and then disconnect any attached devices. 7. Disconnect all other external cables from the computer. 8. Remove any installed PC Cards or plastic blanks from the PC Card slot. 9. Close the display and turn the computer upside down on a flat work surface. NOTICE: To avoid damaging the system board, you must remove the main battery and secondary battery (if present) before you service the computer. 10. Remove the primary battery from the battery bay and the secondary 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 component such as a microprocessor by its edges, not by its pins. Recommended Tools The procedures in this manual require the following tools: q #1 magnetized Phillips screwdriver ¼-inch flat-blade screwdriver Small plastic scribe Microprocessor extractor Flash BIOS update program floppy disk or CD. q q q q file:///F|/Service%20Manuals/Dell/Latitude/c540-640/begin.htm (2 of 6) [2/28/2004 7:57:45 AM] Before You Begin: Dell Latitude C540/C640 Service Manual Computer Orientation 1 back 2 right 3 front 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] Before You Begin: Dell Latitude C540/C640 Service Manual NOTICE: When reinstalling a screw, you must use a screw of the correct 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] |
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