Service Manual
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... performing the removal procedure in reverse order unless otherwise noted. Dell™ Latitude™ L400 Service Manual This manual provides instructions for removing and replacing field-replaceable components, assemblies, and subassemblies in this manual assumes the following conditions: • The computer and any...back and right side of computer Figure 1. Unless otherwise noted, each procedure in your Dell Latitude computer. Computer Orientation support.dell.com Dell Latitude L400 Service Manual 1 When the display assembly is open nearly 180 degrees, use a book or something similar to...
... performing the removal procedure in reverse order unless otherwise noted. Dell™ Latitude™ L400 Service Manual This manual provides instructions for removing and replacing field-replaceable components, assemblies, and subassemblies in this manual assumes the following conditions: • The computer and any...back and right side of computer Figure 1. Unless otherwise noted, each procedure in your Dell Latitude computer. Computer Orientation support.dell.com Dell Latitude L400 Service Manual 1 When the display assembly is open nearly 180 degrees, use a book or something similar to...
Service Manual
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...from their electrical outlets to push the back side of the battery up and out of the battery bay (see Figure 2). 2 Dell Latitude L400 Service Manual Turn off and not in the L400 Advanced Port Replicator (APR), undock the computer. 4. If you service the computer. 8. Remove the power cable. 6. Turn ...the computer over and remove the main battery assembly from the computer. 5. Disconnect the computer and any work in this manual require the use of...
...from their electrical outlets to push the back side of the battery up and out of the battery bay (see Figure 2). 2 Dell Latitude L400 Service Manual Turn off and not in the L400 Advanced Port Replicator (APR), undock the computer. 4. If you service the computer. 8. Remove the power cable. 6. Turn ...the computer over and remove the main battery assembly from the computer. 5. Disconnect the computer and any work in this manual require the use of...
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... for correct length. Make sure that might harm components. Main Battery Assembly Removal 9. NOTICE: While you could damage the hardware. Figure 3 shows examples. support.dell.com Dell Latitude L400 Service Manual 3 Match the actual screw to the illustration to dissipate any static electricity that the screw is properly aligned with its corresponding hole, and avoid...
... for correct length. Make sure that might harm components. Main Battery Assembly Removal 9. NOTICE: While you could damage the hardware. Figure 3 shows examples. support.dell.com Dell Latitude L400 Service Manual 3 Match the actual screw to the illustration to dissipate any static electricity that the screw is properly aligned with its corresponding hole, and avoid...
Service Manual
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..., silver, with 2 rubber washers each) Speaker: M2 x 5 mm (2 each, silver, with rubber washer) Audio I/O Cover: M2 x 4 mm (2 each) System Board Assembly: M2 x 3.5 mm (6 each) 4 Dell Latitude L400 Service Manual Table 1. Screw Placement Mat With Component Screw Counts and Sizes Hard-Disk Drive Assembly: M3 x 3 mm (2 each, black) Display Assembly Hinge to lay out and...
..., silver, with 2 rubber washers each) Speaker: M2 x 5 mm (2 each, silver, with rubber washer) Audio I/O Cover: M2 x 4 mm (2 each) System Board Assembly: M2 x 3.5 mm (6 each) 4 Dell Latitude L400 Service Manual Table 1. Screw Placement Mat With Component Screw Counts and Sizes Hard-Disk Drive Assembly: M3 x 3 mm (2 each, black) Display Assembly Hinge to lay out and...
Service Manual
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... interface cable with the ZIF connector, and insert the end of the connector. 2. ZIF Connectors Some of the computer's interface connectors are fragile. support.dell.com Dell Latitude L400 Service Manual 5 To reconnect an interface cable to the movable part of the ZIF connector. 2. These connectors are not removable, but they must be released to...
... interface cable with the ZIF connector, and insert the end of the connector. 2. ZIF Connectors Some of the computer's interface connectors are fragile. support.dell.com Dell Latitude L400 Service Manual 5 To reconnect an interface cable to the movable part of the ZIF connector. 2. These connectors are not removable, but they must be released to...
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Removing Field-Replaceable Parts and Assemblies display assembly left hinge cover keyboard keyboard bezel right hinge cover palmrest assembly audio EMI shield audio I/O port cover speaker hard-disk drive modem system board assembly fan APR docking doors bottom case assembly main battery Figure 5. Exploded View-Computer 6 Dell Latitude L400 Service Manual
Removing Field-Replaceable Parts and Assemblies display assembly left hinge cover keyboard keyboard bezel right hinge cover palmrest assembly audio EMI shield audio I/O port cover speaker hard-disk drive modem system board assembly fan APR docking doors bottom case assembly main battery Figure 5. Exploded View-Computer 6 Dell Latitude L400 Service Manual
Service Manual
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... hard-disk drive door (see Figure 6). Turn the computer over, and remove the two M3 x 3-mm screws from the bottom of the computer. 2. support.dell.com Dell Latitude L400 Service Manual 7 Hard-Disk Drive Assembly M3 x 3-mm screws (2) hard-disk drive bottom of computer Figure 6. Hard-Disk Drive Assembly Removal NOTICE: To avoid damaging the...
... hard-disk drive door (see Figure 6). Turn the computer over, and remove the two M3 x 3-mm screws from the bottom of the computer. 2. support.dell.com Dell Latitude L400 Service Manual 7 Hard-Disk Drive Assembly M3 x 3-mm screws (2) hard-disk drive bottom of computer Figure 6. Hard-Disk Drive Assembly Removal NOTICE: To avoid damaging the...
Service Manual
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.... 3. Keyboard Bezel Removal NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer. Lift the keyboard bezel. 8 Dell Latitude L400 Service Manual NOTICE: To avoid damaging the microphone, do not put any objects into the microphone hole (see Figure 7). 2. While pushing down (see Figure 7). 1. Keyboard Bezel...
.... 3. Keyboard Bezel Removal NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer. Lift the keyboard bezel. 8 Dell Latitude L400 Service Manual NOTICE: To avoid damaging the microphone, do not put any objects into the microphone hole (see Figure 7). 2. While pushing down (see Figure 7). 1. Keyboard Bezel...
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Remove the keyboard bezel. 2. support.dell.com Dell Latitude L400 Service Manual 9 Remove the two silver M2 x 4-mm screws at the bottom of the computer that secure the display assembly to the bottom case (see Figure 8). Remove ...
Remove the keyboard bezel. 2. support.dell.com Dell Latitude L400 Service Manual 9 Remove the two silver M2 x 4-mm screws at the bottom of the computer that secure the display assembly to the bottom case (see Figure 8). Remove ...
Service Manual
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... the left side of the palmrest. 2. Carefully connect the LCD flex cable to the system board assembly. 10. Do not completely tighten the screws. 10 Dell Latitude L400 Service Manual The M2 x 9.5-mm screw also secures the left of the clip should go over the LCD flex-cable connector (see Figure 8). The tab at...
... the left side of the palmrest. 2. Carefully connect the LCD flex cable to the system board assembly. 10. Do not completely tighten the screws. 10 Dell Latitude L400 Service Manual The M2 x 9.5-mm screw also secures the left of the clip should go over the LCD flex-cable connector (see Figure 8). The tab at...
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... latch M2 x 3.5-mm screw inverter M2.6 x 4-mm screws (4) EMI sponges (2) display-assembly top cover EMI shield right hinge Figure 9. Display Assembly Bezel Removal support.dell.com Dell Latitude L400 Service Manual 11 Display Assembly Bezel l large rubber screw covers (6) M2 x 3.5-mm screws (6) display assembly bezel LCD panel back light plug LCD flex cable left and...
... latch M2 x 3.5-mm screw inverter M2.6 x 4-mm screws (4) EMI sponges (2) display-assembly top cover EMI shield right hinge Figure 9. Display Assembly Bezel Removal support.dell.com Dell Latitude L400 Service Manual 11 Display Assembly Bezel l large rubber screw covers (6) M2 x 3.5-mm screws (6) display assembly bezel LCD panel back light plug LCD flex cable left and...
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... assembly top cover post Figure 10. You may need to use a small flat-blade screwdriver to unsnap and remove the bezel from the post. 12 Dell Latitude L400 Service Manual NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer. 1. Slide the latch spring off of...
... assembly top cover post Figure 10. You may need to use a small flat-blade screwdriver to unsnap and remove the bezel from the post. 12 Dell Latitude L400 Service Manual NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer. 1. Slide the latch spring off of...
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... by touching the unpainted metal surface of the I/O panel on the post with the screwdriver while performing the next step. 2. Reinstall the bezel. support.dell.com Dell Latitude L400 Service Manual 13 To replace the display-assembly latch, perform the following steps: 1. Holding the latch, stretch the spring slightly and set the display-assembly latch...
... by touching the unpainted metal surface of the I/O panel on the post with the screwdriver while performing the next step. 2. Reinstall the bezel. support.dell.com Dell Latitude L400 Service Manual 13 To replace the display-assembly latch, perform the following steps: 1. Holding the latch, stretch the spring slightly and set the display-assembly latch...
Service Manual
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... cable from the top cover. 13. Disconnect the two-wire back-light plug from the connector on the right side of the EMI sponge. 14 Dell Latitude L400 Service Manual Reinstall the tape that secure the LCD panel to the connector on the back of the LCD panel. 2. Holding the LCD flex cable against...
... cable from the top cover. 13. Disconnect the two-wire back-light plug from the connector on the right side of the EMI sponge. 14 Dell Latitude L400 Service Manual Reinstall the tape that secure the LCD panel to the connector on the back of the LCD panel. 2. Holding the LCD flex cable against...
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... key slot, the plug is up , connect the two-wire back-light plug to the top cover. 11. Reinstall the display assembly bezel. support.dell.com Dell Latitude L400 Service Manual 15 d. Remove the keyboard bezel. 2. Remove the two M2.6 x 4-mm screws that secure the LCD panel to the connector on the left hinge and...
... key slot, the plug is up , connect the two-wire back-light plug to the top cover. 11. Reinstall the display assembly bezel. support.dell.com Dell Latitude L400 Service Manual 15 d. Remove the keyboard bezel. 2. Remove the two M2.6 x 4-mm screws that secure the LCD panel to the connector on the left hinge and...
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...: Five metal tabs retain the bottom of the keyboard assembly (see Figure 9). Release the keyboard assembly from the connector on the system board. 16 Dell Latitude L400 Service Manual Rotate the keyboard up and sliding it is clean to the computer. 5. NOTICE: To avoid damaging the system board, you must remove the main battery...
...: Five metal tabs retain the bottom of the keyboard assembly (see Figure 9). Release the keyboard assembly from the connector on the system board. 16 Dell Latitude L400 Service Manual Rotate the keyboard up and sliding it is clean to the computer. 5. NOTICE: To avoid damaging the system board, you must remove the main battery...
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The keys should be at the correct height to enter the slotted holes. support.dell.com Dell Latitude L400 Service Manual 17 Fit the keyboard into place by sliding the five tabs on the hard-disk drive, the tabs will be flush with the slotted holes, ...
The keys should be at the correct height to enter the slotted holes. support.dell.com Dell Latitude L400 Service Manual 17 Fit the keyboard into place by sliding the five tabs on the hard-disk drive, the tabs will be flush with the slotted holes, ...
Service Manual
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... the socket in the center of the memory module socket just far enough for the memory module to fit into the memory module socket. 18 Dell Latitude L400 Service Manual Lift the memory module out of its socket, carefully spread apart the inner tabs of the memory module socket. The memory module is notched...
... the socket in the center of the memory module socket just far enough for the memory module to fit into the memory module socket. 18 Dell Latitude L400 Service Manual Lift the memory module out of its socket, carefully spread apart the inner tabs of the memory module socket. The memory module is notched...
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Turn the computer upside down until it clicks into the tabs, remove the memory module and reinstall it (see Figure 14). support.dell.com Dell Latitude L400 Service Manual 19 Remove the keyboard bezel. 2. Remove the six M2.6 x 1.6-mm screws located in the battery bay (see Figure 13). Removing the Palmrest Assembly Bottom Screws ...
Turn the computer upside down until it clicks into the tabs, remove the memory module and reinstall it (see Figure 14). support.dell.com Dell Latitude L400 Service Manual 19 Remove the keyboard bezel. 2. Remove the six M2.6 x 1.6-mm screws located in the battery bay (see Figure 13). Removing the Palmrest Assembly Bottom Screws ...
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Disconnect the status lights flex cable from the bottom assembly. 20 Dell Latitude L400 Service Manual Carefully remove the palmrest assembly from the ZIF connector on the system board. 11. Remove the three silver M2 x 6-mm screws in the keyboard-assembly ...
Disconnect the status lights flex cable from the bottom assembly. 20 Dell Latitude L400 Service Manual Carefully remove the palmrest assembly from the ZIF connector on the system board. 11. Remove the three silver M2 x 6-mm screws in the keyboard-assembly ...