compaq 800 notebook series User Manual

							Removal and Replacement Procedures
Maintenance and Service Guide5–13
5.7 LED Switch Cover
1. Prepare the notebook for disassembly (Section 5.3).
2. Turn the notebook bottom side up with the front facing you.
3. Remove the two TM2.5 × 7.0 screws that secure the LED 
switch cover to the base enclosure (Figure 5-10).
Figure 5-10. Removing the LED Switch Cover Screws
LED Switch Cover
Spare Part Number Information
LED switch cover 311628-001
307503-002.book  Page 13  Thursday, January 30, 2003  1:04 PM 
						

							5–14Maintenance and Service Guide
Removal and Replacement Procedures
4. Turn the notebook top side up with the front facing you and 
open the notebook as far as it will open.
5. Lift the right side of the LED switch cover 1 to separate it 
from the base enclosure (Figure 5-11).
6. Swing the top edge of the LED switch cover forward 2 to 
separate the cover from the display assembly.
Figure 5-11. Removing the LED Switch Cover
Reverse the preceding procedure to install the LED switch cover.
307503-002.book  Page 14  Thursday, January 30, 2003  1:04 PM 
						

							Removal and Replacement Procedures
Maintenance and Service Guide5–15
5.8 Keyboard
1. Prepare the notebook for disassembly (Section 5.3).
2. Remove the LED switch cover (Section 5.7).
3. Close the notebook and turn it bottom side up with the front 
facing you.
4. Remove the TM2.5 × 16.0 screw that secures the keyboard to 
the base enclosure (Figure 5-12).
Figure 5-12. Removing the Keyboard Screw
Keyboard
Spare Part Number Information
Asia Pacific
Australia
Hong Kong
India
Japan310640-371
310640-011
310640-AC1
310640-D61
310640-291Korea
People’s Republic 
of China
Ta i w a n
United States310640-AD1
310640-AA1
310640-AB1
310640-001
307503-002.book  Page 15  Thursday, January 30, 2003  1:04 PM 
						

							5–16Maintenance and Service Guide
Removal and Replacement Procedures
5. Turn the notebook top side up with the front facing you and 
open the notebook.
6. Lift the back edge of the keyboard 1 until it rests at a 
45-degree angle (Figure 5-13).
7. Slide the keyboard toward the back of the notebook 2 until 
the tabs on the front edge of the keyboard are removed from 
the slots in the base enclosure.
8. Swing the back edge of the keyboard up and forward 3 and 
rest the keyboard on the palm rest.
Figure 5-13. Releasing the Keyboard
307503-002.book  Page 16  Thursday, January 30, 2003  1:04 PM 
						

							Removal and Replacement Procedures
Maintenance and Service Guide5–17
9. Release the ZIF connector 1 to which the keyboard cable is 
attached and disconnect the keyboard cable 2 from the 
system board (Figure 5-14).
10. Remove the keyboard 3.
Figure 5-14. Removing the Keyboard
Reverse the preceding procedure to install the keyboard and 
keyboard retainer.
307503-002.book  Page 17  Thursday, January 30, 2003  1:04 PM 
						

							5–18Maintenance and Service Guide
Removal and Replacement Procedures
5.9 Heat Sink
1. Prepare the notebook for disassembly (Section 5.3).
2. Remove the LED switch cover (Section 5.7).
3. Remove the keyboard (Section 5.8).
4. Disconnect the fan cable 1 from the system board 
(Figure 5-15).
5. Loosen the four PM2.0 × 20.0 shoulder screws 2 that secure 
the heat sink to the processor mounting bracket.
6. Loosen the PM2.0 × 16.0 shoulder screw 3 that secures the 
heat sink to the base enclosure.
Figure 5-15. Disconnecting the Fan Cable and Loosening the 
Heat Sink Screws
Heat Sink
Spare Part Number Information
Heat sink 310647-001
307503-002.book  Page 18  Thursday, January 30, 2003  1:04 PM 
						

							Removal and Replacement Procedures
Maintenance and Service Guide5–19
7. Lift the front edge of the heat sink 1 until it clears the top 
cover (Figure 5-16).
8. Slide the heat sink forward 2 until the back of the heat sink 
clears the top cover.
9. Remove the heat sink.
Figure 5-16. Removing the Heat Sink
307503-002.book  Page 19  Thursday, January 30, 2003  1:04 PM 
						

							5–20Maintenance and Service Guide
Removal and Replacement Procedures
✎The heat sink screws should be loosened and tightened in the
1, 2, 3, 4 sequence stamped into the heat sink metal. The screw 
5 next to the fan should be loosened and tightened last 
(Figure 5-17).
Figure 5-17. Heat Sink Screw Tightening Sequence
Reverse the preceding procedure to install the heat sink.
307503-002.book  Page 20  Thursday, January 30, 2003  1:04 PM 
						

							Removal and Replacement Procedures
Maintenance and Service Guide5–21
5.10 Fan
1. Prepare the notebook for disassembly (Section 5.3).
2. Remove the LED switch cover (Section 5.7).
3. Remove the keyboard (Section 5.8).
4. Remove the heat sink (Section 5.9).
5. Turn the heat sink bottom side up with the grille facing you.
6. Remove the three PM2.0 × 4.5 screws 1 that secure the fan to 
the heat sink (Figure 5-18).
7. Remove the fan from the heat sink 2.
Figure 5-18. Removing the Fan
Reverse the preceding procedure to install the fan.
Fan
Spare Part Number Information
Fan 310657-001
307503-002.book  Page 21  Thursday, January 30, 2003  1:04 PM 
						

							5–22Maintenance and Service Guide
Removal and Replacement Procedures
5.11 Processor
Ä
CAUTION: Before removing the processor, make special note of 
the orientation of the printing on the processor. The gold triangle 
should be in the upper right corner when installing the processor. 
The processor must be installed in the same orientation in which 
it was removed.
1. Prepare the notebook for disassembly (Section 5.3).
2. Remove the LED switch cover (Section 5.7).
3. Remove the keyboard (Section 5.8).
4. Remove the heat sink (Section 5.9).
Processor
Spare Part Number Information
Intel Pentium 4 3.06 GHz (for use only with models with
config. code LLN2)
Intel Pentium 4 2.80 GHz (for use only with models with
config. code LLN3 and LLN5)
Intel Pentium 4 2.4 GHz (for use only with models with config. 
code LF51, LF56, LLN1, LLN3, LLNB, LMR3, LN63,
or LN64)
Intel Pentium 4 2.0 GHz (for use only with models with config. 
code LF52, LF55, LLN6, LLN8, LMS1, LMS4, LN67,
or LN68)
Intel Pentium 4 1.8 GHz (for use only with models with config. 
codes LF53, LF54, LF57, LLN7, LLNC, LLND, LLNF, LLNG, 
LLNH, or LN65)
Intel Celeron 1.8 GHz (for use only with models with
config. code LMS2)
Intel Celeron 1.7 GHz (for use only with models with
config. code LLN9, LMS3, LN61, LN62, or LN66)316743-001
325826-001
310650-001
310649-001
310648-001
316741-001
320039-001
307503-002.book  Page 22  Thursday, January 30, 2003  1:04 PM