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P
RESARIO
N
OTEBOOK
M
AINTENANCE
AND
S
ERVICE
G
UIDE
1800 S
ERIES
R
EMOVAL
& R
EPLACEMENT
47
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
System Board
To remove the system board, complete the following steps:
1. Prepare the Notebook for disassembly (pg 10
).
2. Remove the Palmrest cover with TouchPad (pg 13
).
3. Remove the keyboard (pg 16
).
4. Remove the heat sink (pg 23
).
5. Remove the button board cover (pg 17
).
6. Remove the Internet switch board (pg 21
).
7. Remove the display panel assembly (pg 34
).
8. Remove the hard drive (pg 25
).
9. Remove the upper CPU cover (pg 37
).
10. Disconnect the LCD DisqPlay module cable from the system board (pg 28
).
11. Remove the modem (pg 24
).
12. Remove the CD, CD-RW, or DVD drive (pg 31
).
13. Remove the fan assembly (pg 38
).
14. Disconnect the diskette drive cable from the system board (pg 43
).
15. Remove the voltage converter board (pg 44
).
16. Disconnect the speaker assembly cables from the system board (pg 46
).
Continued on the next page.