1220 Lcd Unit - Lenovo 100w Gen 4 Hardware Maintenance Manual

• "1070 Daughter board cable" on page 59
• "1080 Daughter board bracket" on page 60
• "1110 Built-in battery" on page 61
• "1120 USB-C bracket" on page 62
• "1130 Main wireless WAN antenna (for wireless WAN models of Lenovo 300w Yoga Gen 4 only)" on page
63
• "1140 Speaker assembly" on page 64
• "1150 Trackpad cable" on page 65
• "1160 Lenovo Integrated Pen board and cable (for selected models of Lenovo 300w Yoga Gen 4 / Lenovo
500w Yoga Gen 4)" on page 66
• "1170 Camera and camera cable (for selected models of Lenovo 300w Yoga Gen 4 / Lenovo 500w Yoga
Gen 4)" on page 67
• "1180 System board" on page 67
Removal steps of the heatsink
When installing:
• Before you attach the fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on
the part marked a as shown in the following illustrations. Either too much or too less application of grease
can cause a thermal problem due to imperfect contact with a component.

1220 LCD unit

For access, remove this FRU:
• "1020 Base cover assembly" on page 52
70
Lenovo 100w Gen 4/300w Yoga Gen 4/500w Yoga Gen 4 Hardware Maintenance Manual