Dell L400 service manual System Board Assembly Removal

Page 33

7.Reinstall the palmrest assembly.

8.Reinstall the keyboard assembly.

9.Reinstall the display assembly.

10.Reinstall the keyboard bezel.

System Board Assembly

6

audio EMI shield

USB connector

system board

thermal cooling solution

fan assembly

fan wire connector speaker

M2 x 4-mm screws (2)

EMI adhesive sponge

M2 x 9.5-mm screw

modem retainer bracket

 

M2 x 3.5-mm

modem

screws (6)

EMI clip

PC Card cover

location

 

 

reserve battery

bottom case assembly

audio I/O port cover

Figure 22. System Board Assembly Removal

To remove the system board assembly, perform the following steps.

NOTICE: If the EMI sponge located between the battery bay and the USB connector becomes dislodged, reinsert it.

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Dell Latitude L400 Service Manual

29

Image 33
Contents Dell Latitude L400 Page Contents Tables Dell Latitude L400 Service Manual Recommended Tools Screw Identification and Tightening Display Assembly ZIF Connectors Removing Field-Replaceable Parts and Assemblies Hard-Disk Drive Assembly Removal Hard-Disk Drive AssemblyKeyboard Bezel Removal Keyboard BezelDisplay Assembly Removal Display AssemblyPage Display Assembly Bezel Removal Display Assembly BezelDisplay Assembly Latch Removal Display Assembly LatchZIF LCD PanelPage Display Assembly Hinges Keyboard Assembly Removal Keyboard AssemblySupport.dell.com Memory Module Removal Memory ModuleRemoving the Palmrest Assembly Bottom Screws Palmrest AssemblyRemoving the Palmrest Assembly Top Screws Touch Pad Removal Touch Pad AssemblyBottom Assembly Bottom AssemblyMain Battery Reserve BatteryModem Removal ModemFan Removal FanPage Speaker Removal SpeakerPage System Board Assembly Removal System Board AssemblyPage Hard-Disk Drive EMI Clip Main Battery Release Latch Removal Main Battery Release LatchAPR Docking Doors Page Index
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L400 specifications

The Dell L400 is a notable laptop that emerged in the late 1990s, specifically designed for business professionals and mobile users. This portable computer was celebrated for its lightweight design and solid performance during an era when mobile computing was starting to gain traction.

One of the key features of the Dell L400 is its compact size. Weighing in at just around four pounds, it was easy to carry, making it an ideal choice for users who needed to travel. Its 12.1-inch display was a notable aspect, featuring an active matrix screen that provided decent visual clarity for its time, thus enhancing the mobile computing experience. The display, although small by today’s standards, was designed for convenience and portability, balancing screen size with overall weight.

The L400 was powered by Intel's Pentium III processor, which delivered respectable performance for everyday tasks such as word processing, spreadsheets, and basic multimedia applications. This made it suitable for professionals who required a reliable device for work-related activities without the latest specifications of modern laptops. Additionally, it commonly featured between 64 to 128 MB of RAM, upgradeable, which allowed users to run multiple applications smoothly.

Storage options included traditional hard drives ranging from 6 to 20 GB, providing ample space for documents and essential software of the era. While this may seem limited compared to modern standards, it was a reasonable capacity for users at that time.

In terms of connectivity, the L400 integrated essential ports such as USB, parallel, and serial, catering to a variety of peripherals that users often employed. It also included an Ethernet port for network connectivity, which was crucial for business environments. The inclusion of a modem facilitated dial-up internet connections, reflecting the technology landscape of the late 90s.

Battery life was another significant attribute, as the Dell L400 offered decent longevity that allowed users to extend productivity without being tethered to a power outlet. It typically featured a lithium-ion battery that contributed to its portability.

Overall, the Dell L400 stands out as a historical example of early portable computing, marked by its balance of performance, portability, and connectivity. While it may not compete with modern laptops in terms of specifications, its design and functionality marked an important step in the evolution of mobile computing technology.