compaq notebook evo n150 series User Manual

Removal and Replacement Procedures
Maintenance and Service Guide5–35
5.18 Mini PCI Board
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
a. Hinge covers (Section 5.5)
b. Keyboard (Section 5.6)
c. Display (Section 5.7)
d. EMI shield (Section 5.8)
e. Top cover (Section 5.9)
f. Infrared board (Section 5.15)
g. System board (Section 5.16)
2. Turn the system board bottom side up with the rear panel
facing you.
Mini PCI Board
Spare Part Number Information
Mini PCI...

5–36Maintenance and Service Guide
Removal and Replacement Procedures
3. Disconnect the modem connector/cable from the mini PCI
board

(Figure 5-24).
4. Set the modem connector/cable aside.
5. Pull away the plastic retention clips on each side of the mini
PCI board
. The board tilts upward.
6. Lift the edge of the board and slide it out of the mini PCI slot
at a 45-degree angle
.
Figure 5-24. Removing the Mini PCI Board
Reverse the above procedure to install the mini PCI board. 

Removal and Replacement Procedures
Maintenance and Service Guide5–37
5.19 Disk Cell RTC Battery
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
a. Hinge covers (Section 5.5)
b. Keyboard (Section 5.6)
c. Display (Section 5.7)
d. EMI shield (Section 5.8)
e. Top cover (Section 5.9)
f. Infrared board (Section 5.15)
g. System board (Section 5.16)
2. Turn the system board bottom side up with the rear panel
facing you.
Disk Cell RTC Battery
Spare Part Number...

5–38Maintenance and Service Guide
Removal and Replacement Procedures
3. Lift the edge of the RTC battery to disconnect and remove it
from its socket (Figure 5-25).
Figure 5-25. Removing the Disk Cell RTC Battery
Reverse the above procedure to install the disk cell RTC battery. 

Maintenance and Service Guide6–1
6
Specifications
This chapter provides physical and performance specifications.
Ta b l e 6 - 1
Computer
Dimensions
Height
Depth
Width12.2 in
1.3 in
9.8 in309 mm
34 mm
248 mm
Weight(with 14.1-inch
TFT display and Li ion
battery)5.9 lb 2.7 kg
Standalone (Battery) Power Requirements
Nominal operating
voltage (Li ion)
Nominal operating
voltage (6-cell
Li ion)14.8 VDC
11.1 VDC
AC Adapter Power Requirements
Operating voltage
Operating current
Operating frequency
range
Maximum...

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.
Relative Humidity(non condensing)
Operating
Nonoperating10 to 90% relative humidity
5 to 95% relative humidity, 101.6°F/38.7°C
Maximum wet bulb temperature
Altitude(unpressurized)
Operating
Nonoperating0to10,000ft
0to30,000ft0to3,048m
0to9,144m
Shock
Operating
Nonoperating10 G, 11 ms, half sine
60 G, 11 ms, half...

Specifications
Maintenance and Service Guide6–3
Ta b l e 6 - 2
14.1-inch XGA, TFT Display
Dimensions
Height
Depth
Width8.42 in
11.22 in
14.10 in214 mm
285 mm
358 mm
Number of colorsUp to 262K
Contrast ratio180:1
Brightness>150 nits typical
Pixel resolution
Pitch
For mat
Configuration1024 × 768
RGB vertical stripe0.279 × 0.279 mm
BacklightCold cathode fluorescent, 1 tube
Character display80 × 25
Refresh60 Hz
To t a l Po w e r
Consumption8.0 W 

6–4Maintenance and Service Guide
Specifications
Ta b l e 6 - 3
Hard Drives
15 GB 10 GB
User capacity per drive
115.0 GB 10.0 GB
Drive height(with drive frame) 0.37 in/9.5 mm 0.37 in/9.5 mm
Drive width(with drive frame) 2.5 in/63.5 mm 2.5 in/63.5 mm
Interface typeATA - 5 ATA - 5
Seek times(typical read, including setting)
Single track
3
Average3
Full stroke3
3.0 ms
13.0 ms
24.0 ms3.0 ms
13.0 ms
24.0 ms
User addressable sectors
329,498,112 19,640,880
Logical configuration
Cylinders
Heads
Sectors per...

Specifications
Maintenance and Service Guide6–5
15 GB 10 GB
Physical configuration
Cylinders
3
Heads3
Sectors per track3
Bytes per sector25,800
2
398 - 731
51225,800
2
398 - 731
512
Buffer size
3512 KBytes 512 KBytes
Disk rotational speed4200 rpm 4200 rpm
Transfer rate
Interface max (Mbytes/sec)
2
Media (Mbits/sec)3100
155 - 286100
155 - 286
11 GB = 1,000,000,000 bytes2System capability may differ.3Actual drive specifications may differ slightly.
Certain restrictions and exclusions apply. Consult the...

6–6Maintenance and Service Guide
Specifications
Ta b l e 6 - 4
Diskette Drive
Diskette size3.5 inch 88 mm
LightOn system
Height0.5 in 12.7 mm
Bytes per sector512
Sectors per track
High density
Low density18 (1.44 MB)
915 (1.2 MB)
Tr a c k s p e r s i d e
High density
Low density80
80
Read/write heads2
Average seek times
Track-to-track (high/low)
Average (high/low)
Settling time
Latency average3ms
95 ms
15 ms
100 ms6ms
174 ms