Lenovo 21BX001LGE, Руководство по техническому обслуживанию аппаратной части

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Note: For computer models with the 5G mmWave Wireless WAN card, you need to do calibration after you
remove, replace or reassemble the antenna bracket. For details, see “5G mmWave calibration (for selected
models)” on page 54.
Removal steps of the 5G mmWave Wireless WAN antenna bracket (middle)
Step Screw (quantity) Color Torque
1
M2 × 2.5 mm, flat-head, nylon-coated (1) Black 0.18±0.015 Nm
(1.85±0.15 kgf-cm)
Note: For antenna locations, see “Antenna locations” on page 73.
1200 5G mmWave Wireless WAN antenna kit, cable assembly, FFC cable
and thermal pad (middle) (for selected models)
For access, remove these FRUs in order:
• “1010 Base cover assembly” on page 59
• “1030 Thermal bracket (for selected models)” on page 61
• “1040 M.2 solid-state drive and thermal pad” on page 62
• “1050 5G Wireless WAN card and 5G mmWave Wireless WAN card (for selected models)” on page 63
• “1060 Heatsink assembly” on page 65
• “1100 Camera cable bracket” on page 68
• “1110 LCD cable bracket” on page 69
• “1150 System board” on page 74
• “1190 5G mmWave Wireless WAN antenna bracket (middle) (for selected models)” on page 80
Note: For computer models with the 5G mmWave Wireless WAN card, you need to do calibration after you
remove, replace or reassemble the antenna kit, cables and thermal pad. For details, see “5G mmWave
calibration (for selected models)” on page 54.
Chapter 8
.
Removing or replacing a FRU
81