2020 Lcd Panel - Lenovo ThinkPad T420 4177 Hardware Maintenance Manual

Lenovo thinkpad t420 4177: supplementary guide
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2020 LCD panel

For access, remove these FRUs, in order:
"1010 Battery pack" on page 66
"2010 LCD bezel assembly" on page 98
The LCD panel and the peripheral parts used in this product are very sensitive. Improper handling of the
LCD panel can cause damage to the parts, and may cause a system malfunction such as a missing dot,
missing line, or pixel problems.
• Do not apply any kind of pressure to the LCD panel.
• When you lift the LCD panel, always hold the left and right edges of the panel with both of your hands. Do
not hold the panel with one hand or hold the top and bottom edges of the panel.
• Do not touch or apply any kind of pressure to the print circuit board or sensitive parts
in the following figure.
Table 28. Removal steps of LCD panel
Attention: Unplug the LCD cable by holding the left and right edges of the connector with your fingers, and gently
pull the connector toward you. Do not unplug the cable by pulling it. Applying tension to the cable could cause the
cable to be damaged or a wire to be broken.
When installing:
• Place the LCD panel on a soft and clean sheet spread on a flat table, and plug the cable by pushing the left
and right edges of the connector with your fingers.
• Do not lift the LCD panel.
• Do not plug the cable with one hand.
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Hardware Maintenance Manual
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as shown

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