HP Dv4 1540us Service Guide - Page 127

Display assembly see

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Description ● Celeron 575 (2.2 GHz, 1-MB L2 cache) ● Celeron T1600 (1.66 GHz, 2-MB L2 cache) Spare part number 502838-001 497773-001 NOTE: All processor spare part kits include thermal material. Before removing the processor, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. Optical drive (see Optical drive on page 57) c. Keyboard (see Keyboard on page 72) d. Keyboard cover (see Keyboard cover on page 74) e. Display assembly (see Display assembly on page 80) f. Top cover (see Top cover on page 92) g. System board (see System board on page 107) h. Fan and heat sink (see Fan and heat sink on page 114) Remove the processor: 1. Turn the processor locking screw (1) one-half turn counterclockwise until you hear a click. Component replacement procedures 119

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Description
Spare part number
●
Celeron 575 (2.2 GHz, 1-MB L2 cache)
502838-001
●
Celeron T1600 (1.66 GHz, 2-MB L2 cache)
497773-001
NOTE:
All processor spare part kits include thermal material.
Before removing the processor, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4.
Remove the battery (see
Battery
on page
55
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
59
)
b.
Optical drive (see
Optical drive
on page
57
)
c.
Keyboard (see
Keyboard
on page
72
)
d.
Keyboard cover (see
Keyboard cover
on page
74
)
e.
Display assembly (see
Display assembly
on page
80
)
f.
Top cover (see
Top cover
on page
92
)
g.
System board (see
System board
on page
107
)
h.
Fan and heat sink (see
Fan and heat sink
on page
114
)
Remove the processor:
1.
Turn the processor locking screw
(1)
one-half turn counterclockwise until you hear a click.
Component replacement procedures
119