Table 18. Removal steps of touch pad
1
2
3
3
4
When installing:
Make sure that the connector is attached firmly.
1090 Battery pack
For access, remove these FRUs in order:
•
“1020 Hard disk drive or solid state drive assembly” on page 54
•
“1030 Keyboard” on page 55
•
“1040 Top case assembly” on page 58
Important notice for replacing a battery pack:
• Lenovo ThinkVantage Toolbox has an automatic battery diagnostic that determines if the battery pack is defective.
A battery pack FRU should not be replaced unless this diagnostic shows that the battery is defective.
• The only exception to this is if the battery pack is physically damaged or a customer is reporting a possible
safety issue.
• If Lenovo ThinkVantage Toolbox is not installed in the computer, the customer should download this program
before a non-physically damaged battery pack is replaced. Note that a physically damaged battery pack is a
non-warranty replacement part.
Note:
Before removing the battery, insert a straightened paper clip into the emergency reset hole to reset the
computer.
62
Hardware Maintenance Manual
Summary of Contents for 440128U
Page 1: ...Hardware Maintenance Manual ThinkPad Edge E420s ...
Page 6: ...iv Hardware Maintenance Manual ...
Page 11: ...DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information 5 ...
Page 12: ...DANGER 6 Hardware Maintenance Manual ...
Page 13: ...PERIGO PERIGO PERIGO Chapter 1 Safety information 7 ...
Page 14: ...PERIGO PERIGO PERIGO PERIGO PERIGO DANGER 8 Hardware Maintenance Manual ...
Page 15: ...DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information 9 ...
Page 16: ...DANGER DANGER VORSICHT VORSICHT VORSICHT 10 Hardware Maintenance Manual ...
Page 17: ...VORSICHT VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information 11 ...
Page 18: ...12 Hardware Maintenance Manual ...
Page 19: ...Chapter 1 Safety information 13 ...
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Page 21: ...Chapter 1 Safety information 15 ...
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Page 25: ...Chapter 1 Safety information 19 ...
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Page 90: ...Overall 1 2 4 5 7 9 13 18 14 15 19 8 12 11 17 16 10 6 3 84 Hardware Maintenance Manual ...