General checkout
19
This chapter presents the following information:
• “What to do first” on page 20
• “Power system checkout” on page 21
Before you go to the checkout, make sure to read the following important notes:
General checkout
Important notes:
•
Only certified trained personnel can service the computer.
•
Before replacing any FRU, read the entire page on removing and
replacing FRUs.
•
When you replace FRUs, use new nylon-coated screws.
•
Be extremely careful during such write operations as copying,
saving, or formatting.
Drives in the computer that you are servicing
sequence might have been altered. If you select an incorrect drive, data
or programs might be overwritten.
•
Replace an FRU only with another FRU of the correct model.
When
you replace an FRU, make sure that the machine model and the FRU part
number are correct by referring to the FRU parts list.
•
An FRU should not be replaced just because of a single,
unreproducible failure.
Single failures can occur for a variety of reasons
that have nothing to do with a hardware defect, such as cosmic radiation,
electrostatic discharge, or software errors. Consider replacing an FRU
only when a problem recurs. If you suspect that an FRU is defective,
clear the error logs and run the test again. If the error does not recur, do
not replace the FRU.
•
Be careful not to replace a nondefective FRU.
Summary of Contents for YOGA Tab 3 YT3-850F
Page 1: ...YOGA Tab 3 8 Hardware Maintenance Manual Lenovo YT3 850F Lenovo YT3 850L Lenovo YT3 850M ...
Page 33: ...Lenovo YT3 850 29 ...
Page 52: ...Lenovo YT3 850 Hardware Maintenance Manual 48 Figure 3 10 The removed rotated camera ...
Page 69: ...Lenovo YT3 850 65 Figure 8 3 The removed vibrator motor ...
Page 77: ...Lenovo YT3 850 73 Figure 10 6 The removed USB and volume key FPC ...
Page 79: ...Lenovo YT3 850 75 Figure 11 3 The removed volume key ...
Page 84: ...Lenovo YT3 850 Hardware Maintenance Manual 80 Figure 13 6 The removed antenna ...
Page 88: ...Lenovo YT3 850 Hardware Maintenance Manual 84 Figure 15 5 The removed antenna ...