Lenovo ThinkPad W701 Hardware Maintenance Manual - Page 73

Removing and replacing a FRU, Important notice for servicing ThinkPad W700ds and W701ds - review

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Chapter 9. Removing and replacing a FRU This chapter presents directions and drawings for use in removing and replacing a FRU. Be sure to observe the following general rules: 1. Do not try to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts. 2. Before replacing any FRU, review Chapter 8 "FRU replacement notices" on page 63. 3. Begin by removing any FRUs that have to be removed before the failing FRU. Any such FRUs are listed at the top of the page. Remove them in the order in which they are listed. 4. Follow the correct sequence in the steps for removing the FRU, as given in the drawings by the numbers in square callouts. 5. When turning a screw to replace a FRU, turn it in the direction as given by the arrow in the drawing. 6. When removing the FRU, move it in the direction as given by the arrow in the drawing. 7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to replacement. For information about connecting and arranging internal cables, see Chapter 10 "Locations" on page 153. 8. When replacing a FRU, use the correct screw as shown in the procedures. DANGER Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Attention: After replacing a FRU, do not turn on the computer until you have made sure that all screws, springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits. Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge. Before touching it, establish personal grounding by touching a ground point with one hand or by using an electrostatic discharge (ESD) strap (P/N 6405959). Important notice for servicing ThinkPad W700ds and W701ds The computer display is designed to be opened and used at an angle slightly greater than 90 degrees. Do not open the main display beyond 150 degrees. To do so might damage the computer hinge. Tips on using the dual screen model: • The second screen is designed to be opened at an angle of 0 ( a ) to 30 ( b ) degrees to the main display. Do not open it to an angle of more than 30 degrees. To do so might damage it. © Copyright Lenovo 2008, 2011 67

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Chapter 9.
Removing and replacing a FRU
This chapter presents directions and drawings for use in removing and replacing a FRU. Be sure to observe
the following general rules:
1. Do not try to service any computer unless you have been trained and certified. An untrained person runs
the risk of damaging parts.
2. Before replacing any FRU, review Chapter 8 “FRU replacement notices” on page 63.
3. Begin by removing any FRUs that have to be removed before the failing FRU. Any such FRUs are listed
at the top of the page. Remove them in the order in which they are listed.
4. Follow the correct sequence in the steps for removing the FRU, as given in the drawings by the
numbers in square callouts.
5. When turning a screw to replace a FRU, turn it in the direction as given by the arrow in the drawing.
6. When removing the FRU, move it in the direction as given by the arrow in the drawing.
7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to
replacement. For information about connecting and arranging internal cables, see Chapter 10
“Locations” on page 153.
8. When replacing a FRU, use the correct screw as shown in the procedures.
DANGER
Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets,
remove the battery pack, and then disconnect any interconnecting cables.
Attention:
After replacing a FRU, do not turn on the computer until you have made sure that all screws,
springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking
the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical
short circuits.
Attention:
The system board is sensitive to, and can be damaged by, electrostatic discharge. Before
touching it, establish personal grounding by touching a ground point with one hand or by using an
electrostatic discharge (ESD) strap (P/N 6405959).
Important notice for servicing ThinkPad W700ds and W701ds
The computer display is designed to be opened and used at an angle slightly greater than 90 degrees. Do
not open the main display beyond 150 degrees. To do so might damage the computer hinge.
Tips on using the dual screen model:
•
The second screen is designed to be opened at an angle of 0 (
a
) to 30 (
b
) degrees to the main display.
Do not open it to an angle of more than 30 degrees. To do so might damage it.
© Copyright Lenovo 2008, 2011
67