Screw identification and tightening, Zif connectors – Dell Inspiron 3800 User Manual
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second battery (if installed) before you service the computer.
8. Remove the main battery assembly from the battery bay:
a. Slide the battery bay latch toward the unlock icon.
b. Slide the battery out of the battery bay (see Figure 2).
Figure 2. Main Battery Assembly Removal
9. Ground yourself by touching the unpainted metal surface of the I/O panel on the back of the computer.
While you work, periodically touch the I/O panel to dissipate any static electricity that might harm
components.
Screw Identification and Tightening
The illustrations in the following removal procedures provide the correct screw length as part of the screw
’s label.
A graphic for that length screw is also included in the illustration. Examples are shown in
screw to the graphic in the illustration to check for correct length.
Figure 3. Screw Identification
NOTICE: When reinstalling a screw, you must use a screw of the correct diameter and length. Otherwise,
hardware damage could result. Make sure that the screw is properly aligned with its corresponding hole,
and avoid over tightening.
When you are removing and replacing components, photocopy the Table 1 placement mat as a tool to lay out and
keep track of the component screws.
Table 1. Screw Placement Mat With Component Screw Counts and Sizes
ZIF Connectors
Some of the computer
’s interface connectors are zero insertion force (ZIF) connectors. These connectors are not
removable, but they must be released to disconnect a cable from them (see Figure 4).
1 Battery bay latch
2 Unlock icon
3 Battery
Hard-Disk Drive:
M3 x 5 (1 each)
Keyboard
Assembly:
M2.5 x 10 (7 each)
Display Assembly:
M2.5 x 4 (3 each)
Display Assembly Bezel:
Rubber screw
covers (4 each)
Plastic screw
covers (2 each)
Display Assembly Bezel:
M2.5 x 4 (6 each)
14.1 Display
Assembly LCD to Top Cover:
M2 x 3 (6 each)
12.1-
Inch Display
Assembly LCD to
Top Cover:
M3 x 5 (4 each)
12.1-
Inch Display
Assembly Inverter:
M3 x 3 (3 each)
Palmrest Assembly:
M2.5 x 20 (5 each)
System Board:
M2.5 x 4 (2 each)
Microprocessor Shield:
(three captive and
two removable screws)
M2 x 3 (2 each)
TCA and
Exhaust Fan:
M2.5 x 4 (2 each)