Compaq 300 320 321 420 421 620 and 621 Notebook PC and 420 and 620 Notebook PC - Page 90

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Top cover Description Top cover for use in Compaq brand computers with 39.6-cm (15.6-in) displays Top cover for use in Compaq brand computers with 39.6-cm (15.6-in) displays, red Top cover for use in Compaq brand computers with 35.6-cm (14.0-in) displays Top cover for use in Compaq brand computers with 33.8-cm (13.3-in) displays Top cover for use in Compaq brand computers with 33.8-cm (13.3-in) displays, red Top cover for use in HP brand computers with 39.6-cm (15.6-in) displays Top cover for use in HP brand computers with 35.6-cm (14.0-in) displays Spare part number 605778-001 626093-001 605776-001 605774-001 616601-001 605777-001 605775-001 Before removing the top cover, 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 56). 5. Remove the service door (see Service door on page 56). 6. Remove the palm rest (see Palm rest on page 73). 7. Remove the keyboard (see Keyboard on page 78). 82 Chapter 4 Removal and replacement procedures

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Top cover
Description
Spare part number
Top cover for use in Compaq brand computers with
39.6-cm
(15.6-in) displays
605778-001
Top cover for use in Compaq brand computers with
39.6-cm
(15.6-in) displays, red
626093-001
Top cover for use in Compaq brand computers with
35.6-cm
(14.0-in) displays
605776-001
Top cover for use in Compaq brand computers with
33.8-cm
(13.3-in) displays
605774-001
Top cover for use in Compaq brand computers with
33.8-cm
(13.3-in) displays, red
616601-001
Top cover for use in HP brand computers with
39.6-cm
(15.6-in) displays
605777-001
Top cover for use in HP brand computers with
35.6-cm
(14.0-in) displays
605775-001
Before removing the top cover, 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
56
).
5.
Remove the service door (see
Service door
on page
56
).
6.
Remove the palm rest (see
Palm rest
on page
73
).
7.
Remove the keyboard (see
Keyboard
on page
78
).
82
Chapter 4
Removal and replacement procedures