Lenovo L421, L520, L420 manual LCD FRUs

Models: L420 L520 L421

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Table 38. Parts list—Overall (continued)

No.

FRU (Overall)

FRU no.

CRU

 

 

 

 

ID

 

 

 

 

24

System board assembly, HM65 integrated 15W Dock, non-TPM, AUO4, with wireless WAN

04W0387

N

 

5015-CTO

 

 

 

5016-CTO, 4Hx, 4Jx

 

 

 

5017-CTO

 

 

 

5019-CTO

 

 

 

7859-CTO, 4Qx, 4Rx, 4Vx, 3Dx, 3Mx, 3Nx, 3Px, 3Qx, 3Rx, 3Sx, 3Tx

 

 

 

7860-CTO

 

 

 

 

 

 

25

ExpressCard slot blank bezel

04W1721

N

 

 

 

 

26

Palm rest assembly without fingerprint reader for 14W Dock

04W1349

N

 

7826-CTO, 3Dx

 

 

 

7827-CTO, 5Hx, 43x, 42x, 5Mx, 5Rx, 5Sx, 5Dx, 5Ex, 45x, 48x, 4Qx, 4Sx, 4Vx, 4Wx, 52x,

 

 

 

 

53x, 54x, 55x, 56x, 57x, 58x, 32x

 

 

 

7829-CTO, 48x, 43x, 42x, 4Qx, 4Rx, 45x, 4Ux, 4Ex, 32x

 

 

 

7853-CTO

 

 

 

7854-CTO, 3Tx, 42x, 43x, 44x, 45x, 46x, 48x, 4Fx, 4Jx, 4Kx, 4Mx, 22x

 

 

 

7856-CTO, 3Nx, 3Px, 3Qx, 3Sx, 3Tx, 3Ux, 3Vx

 

 

 

 

 

 

26

Palm rest assembly with fingerprint reader for 14W Dock

04W1350

N

 

7826-CTO, 32x, 36x, 3Ex, 3Gx

 

 

 

7827-CTO, 4Gx, 5Gx, 44x, 5Lx, 5Qx, 5Fx, 46x, 47x, 34x, 49x, 4Ax, 4Bx, 4Ex, 4Fx, 5Tx,

 

 

 

 

4Hx, 4Nx, 4Px, 4Rx, 4Tx, 4Ux, 4Xx, 4Yx, 4Zx, 5Ax, 5Bx, 5Cx, 33x, 23x, 22x

 

 

 

7829-CTO, 47x, 44x, 4Wx, 4Xx, 4Yx, 4Sx, 46x, 4Tx, 34x, 49x, 4Ax, 4Fx, 4Gx, 4Kx, 4Lx,

 

 

 

 

4Mx, 33x

 

 

 

7853-CTO

 

 

 

7854-CTO, 4Wx, 4Ux, 4Vx, 4Px, 4Sx, 34x, 37x, 38x, 3Ax, 3Lx, 3Mx, 3Nx, 3Rx, 3Sx, 3Yx,

 

 

 

 

3Zx, 4Gx, 4Hx, 4Lx, 23x

 

 

 

7856-CTO, 34x, 37x, 38x, 39x, 3Ax, 3Lx, 3Mx, 3Wx, 3Xx

 

 

 

 

 

 

26

Palm rest assembly without fingerprint reader for 15W Dock

04W1351

N

 

5015-CTO, 38x, 39x, 3Cx

 

 

 

5016-CTO, 43x, 46x, 5Px, 5Tx, 42x, 45x, 48x, 4Dx, 4Vx, 4Wx, 4Zx, 52x, 58x, 5Ax, 5Bx,

 

 

 

 

5Cx, 5Dx, 5Ex, 5Fx, 5Gx, 5Hx, 32x

 

 

 

5017-CTO, 46x, 43x, 42x, 45x, 48x, 32x

 

 

 

5019-CTO

 

 

 

7859-CTO, 3Ax, 3Bx, 3Sx, 3Tx, 4Bx, 4Cx, 4Dx, 4Ex, 4Kx, 4Lx, 22x

 

 

 

7860-CTO, 3Kx, 3Lx, 3Mx, 3Qx, 3Rx, 3Sx

 

 

 

 

 

 

26

Palm rest assembly with fingerprint reader for 15W Dock

04W1352

N

 

5015-CTO, 3Ax, 3Bx, 36x, 37x, 33x, 34x

 

 

 

5016-CTO, 5Vx, 5Wx, 5Xx, 5Yx, 5Qx, 5Rx, 44x, 47x, 49x, 4Ax, 4Bx, 4Cx, 4Hx, 4Jx, 4Lx,

 

 

 

 

4Tx, 4Ux, 4Xx, 4Yx, 53x, 54x, 55x, 56x, 57x, 59x, 5Kx, 5Mx, 33x, 23x, 22x

 

 

 

5017-CTO, 4Jx, 4Lx, 4Mx, 44x, 47x, 49x, 4Dx, 4Ex, 4Fx, 4Gx, 33x

 

 

 

5019-CTO

 

 

 

7859-CTO, 55x, 56x, 52x, 53x, 54x, 4Nx, 4Px, 4Qx, 4Rx, 4Vx, 4Wx, 4Xx, 35x, 36x, 38x, 39x,

 

 

 

 

3Dx, 3Mx, 3Nx, 3Px, 3Qx, 3Rx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 42x, 43x, 4Fx, 4Gx, 4Hx, 4Mx

 

 

 

7860-CTO, 35x, 36x, 38x, 39x, 3Ax, 3Bx, 3Cx, 3Dx, 3Ex, 3Fx, 3Gx, 3Hx, 3Jx, 3Nx

 

 

 

 

 

 

27

Keyboard (see “Keyboard” on page 152.)

 

 

 

 

 

 

28

TrackPoint caps

91P9642

*

 

 

 

 

ac power adapter (see “ac power adapters” on page 154.)

 

 

 

 

 

 

 

LCD FRUs

In ThinkPad L420, L421, and L520, there are following types of LCDs.

14.0-inch HD LED-backlight LCD (Table 39 “Parts list—14.0-inch HD LCD” on page 146)

144Hardware Maintenance Manual

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Lenovo L421, L520, L420 manual LCD FRUs

L420, L520, L421 specifications

The Lenovo L421, L520, and L420 are part of Lenovo's ThinkPad series, which is known for its reliability, durability, and performance. These models are designed primarily for business professionals and students, providing a blend of functionality and portability tailored for everyday computing.

The Lenovo L421 is equipped with the second-generation Intel Core processors, which enhance its performance and efficiency. It features a 14-inch LED backlit display, offering sharp visuals and sufficient screen real estate for multitasking. The L421 also sports a spill-resistant keyboard, ensuring that accidental spills do not affect the device's functionality. This model supports up to 8GB of RAM and incorporates various connectivity options, including USB 3.0 ports, HDMI, and an SD card reader, which makes it versatile for various peripherals.

The L520 is another solid offering from Lenovo, featuring a slightly larger 15.6-inch display for increased productivity. It shares many characteristics with the L421, such as the use of Intel’s second-generation processors. The L520 also emphasizes security with features like a fingerprint reader and a Trusted Platform Module (TPM) for data encryption, appealing to businesses that require stringent security measures. Its ExpressCard and docking station compatibility add flexibility, allowing users to tailor their setups according to their needs.

The L420, like its siblings, comes with an emphasis on performance and utility. With a 14-inch HD display, it offers vibrant visuals. The L420 also benefits from Lenovo's legendary keyboard design, which ensures a comfortable typing experience. This model is geared for users who require a balance between performance and portability without compromising on essential features. The same Intel Core processors and security features are incorporated, ensuring a reliable experience for professional applications.

All three models feature Lenovo's innovative Power Management technology, which optimizes battery life, allowing users to work longer hours without needing to recharge. Additionally, they are built with robust materials that ensure longevity, making them suitable for both office and on-the-go environments.

Overall, the Lenovo L421, L420, and L520 exemplify the ThinkPad series' commitment to performance, security, and durability, making them excellent choices for anyone looking for reliable laptops for professional use.