compaq evo n115 User Manual

							Remova l and Replacement Procedures
Maintenance and Ser vice Guide 5–53
2. Disconnect the speaker cable 1 from the system board 
(Figure 5-43).
3. Lift the speaker assembly straight up and remove it 
2.
Figure 5-43. Remo ving the Speaker Assemb ly
Reverse the above procedure to install the speaker assembly.
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							5–54Maintenance and Service Guide
Remo va l and Replacement Procedures
5.20 Audio Board
1. Prepare the computer for disassembly (Section 5.3) and 
remove the following components:
a. Optical drive (Section 5.7)
b. LED cover (Section 5.8)
c. Keyboard (Section 5.9)
d. Display (Section 5.10)
e. Heat spreader (Section 5.11)
f. Top cover (Section 5.14)
g. Diskette drive (Section 5.15)
h. Left side panel (Section 5.17)
i. Right side panel (Section 5.18)
Audio Board
Spare Part Number Information
Audio board 254125-001
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							Remova l and Replacement Procedures
Maintenance and Ser vice Guide 5–55
2. Disconnect the audio cable 1 from the audio board 
(Figure 5-44).
3. Remove the two silver TM2.0 × 5.0 screws 
2 that secure the 
audio board to the base enclosure.
4. Remove the audio board 
3.
Figure 5-44. Remo ving the Audio Boar d
Reverse the above procedure to install the audio board.
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							5–56Maintenance and Service Guide
Remo va l and Replacement Procedures
5.21 Fan
1. Prepare the computer for disassembly (Section 5.3) and 
remove the following components:
a. Optical drive (Section 5.7)
b. LED cover (Section 5.8)
c. Keyboard (Section 5.9)
d. Display (Section 5.10)
e. Heat spreader (Section 5.11)
f. Top cover (Section 5.14)
g. Diskette drive (Section 5.15)
h. Right side panel (Section 5.18)
Fan
Spare Part Number Information
Fan 254123-001
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							Remova l and Replacement Procedures
Maintenance and Ser vice Guide 5–57
2. Disconnect the fan cable 1 from the system board 
(Figure 5-45).
3. Remove the two silver TM2.0 × 5.0 screws 
2 that secure the 
fan to the system board.
4. Remove the fan 
3.
Figure 5-45. Remo ving the Fan
Reverse the above procedure to install the fan.
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							5–58Maintenance and Service Guide
Remo va l and Replacement Procedures
5.22 System Board
✎When replacing the system board, ensure that the following 
components are removed from the old system board and installed 
on the new system board:

Memory expansion boards (Section 5.5)

Mini PCI communications board (Section 5.6)

Processor (Section 5.12)

Disk cell RTC battery (Section 5.13)
1. Prepare the computer for disassembly (Section 5.3) and 
remove the following components:
a. Optical drive (Section 5.7)
b. LED cover (Section 5.8)
c.
Keyboard (Section 5.9)
d. Display (Section 5.10)
e. Heat spreader (Section 5.11)
System Boards
Spare Part Number Information
System boards
includes 256 MB SDRAM
includes 128 MB SDRAM 263723-001
254103-001
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							Remova l and Replacement Procedures
Maintenance and Ser vice Guide 5–59
f. Top cover (Section 5.14)
g. Diskette drive (Section 5.15)
h. Charger board (Section 5.16)
i. Left side panel (Section 5.17) 
j. Right side panel (Section 5.18)
k. Fan (Section 5.21)
2. Disconnect the audio cable 
1 from the audio board and 
remove the cable from the clips 
2 in the base enclosure 
(Figure 5-46).
Figure 5-46. Disconnecting the A udio Cab le
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							5–60Maintenance and Service Guide
Remo va l and Replacement Procedures
3. Remove the following components (Figure 5-47):
a. Four silver TM2.0 × 5.0 screws 
1 that secure the optical 
drive front and rear alignment rails
b. Optical drive front 
2 and rear 3 alignment rails
c. Two silver HM5.0 × 17.5 standoffs 
4
d. One silver HM5.0 × 9.0 standoff 5
e. One silver TM2.0 × 5.0 screw 6 with bracket \b
Figure 5-47. Remo ving the System Boar d Fastener s
4. Position the computer so the rear panel faces forward.
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							Remova l and Replacement Procedures
Maintenance and Ser vice Guide 5–61
5. Open the connector cover 1 to reveal the rear panel 
connectors (Figure 5-48).
6. Remove the four silver HM5.0 × 10.5 screwlocks 
2 on each 
side of the parallel and serial connectors.
Figure 5-48. Remo ving the System Boar d Fasterner s 
(contin ued)
7. Position the computer so the front faces forward.
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							5–62Maintenance and Service Guide
Remo va l and Replacement Procedures
8. Use the optical drive connector 1 to lift the front of the 
system board 
2 until it clears the base enclosure 
(Figure 5-49).
9. Slide the system board forward 
3 and remove it from the 
base enclosure.
Figure 5-49. Remo ving the System Boar d
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