compaq notebook evo n160 series User Manual

5–34Maintenance and Service Guide
Removal and Replacement Procedures
2. Remove the black M2 × 9 screw 1 and the silver M2 × 6.5 
screw 2 that secure the right display support to the base 
enclosure. The silver M2 × 6.5 screw also captures the 
modem/NIC ground cable 3 (Figure 5-24).
3. Remove the right display support 4.
✎The right display support is included in the Plastics and Hardware 
Kit (spare part number 251365-001).
Figure 5-24. Removing the Right Display Support 

Removal and Replacement Procedures
Maintenance and Service Guide5–35
4. Disconnect the modem/NIC cable 1 from the sub I/O board 
(Figure 5-25).
5. Lift up the right side of the sub I/O board 2 until it clears the 
base enclosure.
6. Slide the sub I/O board to the right 3 to disconnect it from 
the system board.
Figure 5-25. Removing the Sub I/O Board
7. Remove the sub I/O board.
Reverse the above procedure to install the sub I/O board. 

5–36Maintenance and Service Guide
Removal and Replacement Procedures
5.16 System Board
1. Prepare the computer for disassembly (Section 5.3) and 
remove the following components:
a. Switch cover (Section 5.6)
b. Keyboard and keyboard shield (Section 5.7)
c. Display (Section 5.10)
d. Top cover (Section 5.11)
e. Sub I/O board (Section 5.15)
System Board
Spare Part Number Information
System board251368-001 

Removal and Replacement Procedures
Maintenance and Service Guide5–37
2. Position the modem/NIC cable 1 so it rests in the empty 
modular media bay in the base enclosure (Figure 5-26).
3. Disconnect the speaker assembly cables 2 from the system 
board.
4. Remove the two silver M2 × 6.5 screws 3 that secure the 
hard drive bracket to the base enclosure.
5. Remove the hard drive bracket 4.
Figure 5-26. Removing the Hard Drive Bracket 

5–38Maintenance and Service Guide
Removal and Replacement Procedures
6. Remove the two black M2 × 9 screws 1 that secure the left 
display support to the base enclosure (Figure 5-27).
7. Remove the left display support 2.
✎The left display support is included in the Plastics and Hardware 
Kit (spare part number 251365-001).
8. Remove the silver M2 × 5 screw 3 that secures the system 
board to the base enclosure.
Figure 5-27. Removing the Left Display Support and System 
Board Screw 

Removal and Replacement Procedures
Maintenance and Service Guide5–39
9. Press in and hold the PC Card eject button 1 (Figure 5-28).
10. Lift up the front edge of the system board 2 until it clears the 
base enclosure.
11. Slide the front edge of the system board forward, away from 
the base enclosure, at an angle 3.
Figure 5-28. Removing the System Board
Refer to the following sections to remove components from the 
system board:

Memory expansion board (Section 5.4)

Fan assembly (Section 5.8)...

Maintenance and Service Guide6–1
6
Specifications
This chapter provides physical and performance specifications.
Ta b l e  6 - 1
Computer
Dimensions
Height
Width
Depth1.29 in
12.80 in
10.37 in3.28 cm
32.51 cm
26.34 cm
Weight4.8 to 5.7 lbs 2.17 to 2.59 kg
AC adapter power requirements
Rated input voltage
Rated input current
Rated frequency90 to 264 VAC (auto switching)
< 60 W
47 to 63 Hz
Te m p e r a t u r e
Operating
Nonoperating50° F to 95° F
-4° F to 140° F10° C to 35° C
-20° C to 60° C
Relative...

6–2Maintenance and Service Guide
Specifications
✎Applicable product safety standards specify thermal limits for 
plastic surfaces. The computer operates well within this range of 
temperatures.
Shock
Operating
Nonoperating10 G for 11 ms, half sine
60 g for 11 ms, half sine
Vibration
Operating
Nonoperating0.5 G zero-to-peak, 10-500 Hz, 0.25-oct/min 
sweep rate
1.0 G zero-to-peak, 10-500 Hz, 0.25-oct/min 
sweep rate
Ta b l e  6 - 1
Computer (Continued) 

Specifications
Maintenance and Service Guide6–3
Ta b l e  6 - 2
14.1-inch XGA, TFT Display
Dimensions
Height
Depth
Width8.46 in
11.22 in
14.10 in21.40 cm
28.50 cm
35.81 cm
Number of colorsUp to 16.8 million
Contrast ratio150:1
Brightness120 nits typical
Pixel resolution
Pitch
For mat
Configuration1024 × 768
RGB vertical stripe0.264 × 0.264 mm
BacklightEdge lit
Character display80 × 25
Refresh60 Hz
Total power 
consumption4.2 W 

6–4Maintenance and Service Guide
Specifications
Ta b l e  6 - 3
13.3-inch XGA, TFT Display
Dimensions
Height
Depth
Width7.98 in
10.64 in
13.3 in20.28 cm
27.03 cm
33.79 cm
Number of colorsUp to 16.8 million
Contrast ratio150:1
Brightness120 nits typical
Pixel resolution
Pitch
For mat
Configuration1024 × 768
RGB vertical stripe0.264 × 0.264 mm
BacklightEdge lit
Character display80 × 25
Refresh60 Hz
Total power 
consumption4.0 W