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42" Class 1080p 120Hz LED TV (41.9" diagonal)

  • 42LN5400

Key Features

  • LED Backlighting
  • TruMotion 120Hz
  • Full HD 1080p Resolution


Impressive performance and design to match. LG Smart TV’s look great from every angle. The style is sleek and minimal…the perfect complement to LG’s brilliant picture impact.



Sized just right for the bedroom, this LG TV delivers an exceptional HD viewing experience. And features like Clear Voice II for clear dialogue even at low volume plus a customizable Sleep Timer make LG Bedroom TVs a perfect fit.



You won't believe your eyes. LG’s LED technology delivers amazing brightness, clarity and color detail.



TruMotion 120Hz technology lets you see sports, video games and high-speed action with virtually no motion blur. Now your TV can keep up with your fast- moving entertainment.

Double the detail

Double the detail

This stunning picture is the reason you wanted HDTV in the first place. With almost double the pixel resolution, Full HD 1080p gives it superior picture quality over standard HDTV. You’ll see details and colors like never before.



Get easy self-calibration with on-screen reference points for key picture quality elements such as black level, color, tint, sharpness and backlight levels. Take the guesswork out of picture adjustments with this simple-to-use feature. It’s not actually magic, but it will sure seem that way.

Motion Clarity Index 240

Motion Clarity Index 240

LG’s Motion Clarity Index (MCI) measures more than just the refresh rate to truly understand the ability to deliver clear, crisp images. MCI factors in refresh rate, our Triple XD Engine and backlight technology to better measure how well our TVs can display fast moving images like action movies, video games or sports.

Screen Size 42"
Screen Size Diagonal 41.9"
Resolution 1920 x 1080p
Display Type LED
TruMotion (Frame Rate) 120 Hz
Triple XD™ Engine Yes
Full HD 1080 Yes
No. of HDMI Ports 2
USB 3.0/2.0 Yes
MHL™ Mobile High Definition Link Yes
Speaker System 1 Way, 2 Speakers
Audio Output Power (Watts - THD 10%) 10W + 10W
Mono/Stereo/Dual (MTS/SAP) Yes
Virtual Surround Yes
Sound Mode 5 Modes (Standard/Music/Cinema/Sport/Game)
Clear Voice II Yes
MHL™ Mobile High Definition Link Yes
USB Playback MP3
RF In (Antenna/Cable) 1 (Rear)
AV In 1 (Rear)
Component Video In(Y, Pb, Pr + Audio) 1 (Rear)
HDMI™/HDCP Input 2 (1 Side, 1 Rear)
USB 3.0/2.0 Input 1 (Side)
Digital Audio Out (Optical) 1 (Rear)
RS-232C (Control/Service) 1 (Rear)
Power Supply (Voltage, Hz) 100V ~ 240V, 50/60 Hz
Power Consumption 44W
Standby Mode 0.3W
TV without Stand (WxHxD) 38.11" x 22.28" x 3.11"
TV with Stand (WxHxD) 38.11" x 24.72" x 9.25"
TV without Stand Weight 20.5 lbs
TV with Stand Weight 22.9 lbs
TV Shipping Dimensions (WxHxD) 45.28" x 25.98" x 6.89"
Shipping Weight 28.9 lbs
Limited Warranty 1 Year Parts & Labor
UPC 719192588370
Screen Size Class (diagonal) 42" Class (41.9" diagonal)
Resolution 1920 x 1080
BLU Type Direct LED
Response Time TruMotion 120Hz
MCI 240
Triple XD™ Engine Yes
Picture Mode 7 Modes (Vivid/Standard/Cinema/Sport/Game/Expert1/Expert2)
Picture Wizard II Yes
Aspect Ratio 6 Modes (16:9, Just Scan, Original, 4:3, Cinema Zoom 1, Zoom)
AV Mode II (Picture & Sound) 3 Modes (Cinema/Game/Off )
HDMI™/HDCP Input 1
USB 3.0/2.0 Input 1
RF In (Antenna/Cable) 1
AV In 1
Component Video In (Y, Pb, Pr) + Audio 1
Digital Audio Out (Optical) 1
HDMI™/HDCP Input 1
RS-232C (Control/Service) via Headphone
VESA Standard 200mm x 200mm
Remote Control Yes
Batteries AA x 2

What People Are Saying

Rated 3 out of 5 by from Screen died The screen started getting dark areas and totally went black after only 2 years of using
Date published: 2016-02-03
Rated 1 out of 5 by from VERY disappointed Model Number 47LN5400 - Manufactured Sep 2013 - S/N 309RMBWD0453 - Died 29 January 2016. Has sound - picture has left the building. Can't believe such a highly rated item would go belly up in such a short period of time. The TV went directly from its box to the tv stand - never bumped, dropped, or jostled. Will NEVER own another LG product if this is an indication of LG quality.
Date published: 2016-01-30
Rated 1 out of 5 by from Trash after 2 years I purchased this TV and was very happy with it , then out of nowhere the backlight went ! Just shy of its 2 year birthday! Brought is to a repair shop and was told it's not worth fixing ! I'm so disappointed! I'll never buy another LG product again !
Date published: 2016-01-19
Rated 1 out of 5 by from PICTURE WENT OUT. We bought this TV on 11/29/2013 and the picture went black on 1/08/2016. (still has audio) Trying now to figure out if it can be fixed and at what cost.
Date published: 2016-01-18
Rated 2 out of 5 by from Stopped Working We bought this tv when we moved into our condo and it was great up until 1 week ago when the screen was blank, no sound. Called cable first and he said no it was definitely the tv. Bought extended warranty and they are coming next Tuesday but after reading some reviews where the same thing happened to their tv, I'm concerned it can't be fixed. Then what happens? I will update after Tuesday.
Date published: 2016-01-10
Rated 1 out of 5 by from Was great while it worked but surprise, surprise the LED back lighting went out 1 year and 2 months after purchase. Just out of warranty. I've now had 2 LG TV's die due to hardware problems.
Date published: 2016-01-08
Rated 1 out of 5 by from A worthless TV, unrepairable I purchased this model in the fall of 2013. I worked fine for 15 months then the video went out. Finally, after months of trying to get it diagnosed, I find out it can't be repaired. LG makes no parts to repair this model.
Date published: 2016-01-01
Rated 4 out of 5 by from Great TV until it falls over on it's face My cat got friskie and knocked the satellite receiver off the shelf pulling the TV over on its face. The screen hit the corner of a foot stool and it was all over for this TV! The screens are EXTREMELY fragile! That's my only complaint. The replacement is bolted down with the receiver directly under it. NO CAT ACCESS!
Date published: 2015-12-30
  • 2016-02-07T07:32CST
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We're here to support you with our product.

View 42LN5400 Product Support

Contact us for any support inquiries.


Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

How do I get my TV set PCM 

Asked by: Donnadelane
We appreciate your interest in this television and its features. Check the SOUND MENU for the SOUND MODE and AUDIO OUT settings. These should be the options to use if PCM is an available setting. Please contact our Customer Interactive Center at 800-243-0000 for additional assistance in this matter.
Answered by: NeilE
Date published: 2016-02-03

I have "this function is not available now" flashing across the screen. Not cable problem any ideas

Asked by: Bullet1
We regret the inconvenience you have experienced with this television. There are several causes for such a message to appear. This would depend upon which function is being attempted, and to which settings the TV is configured. Please contact our Customer Interactive Center at 800-243-0000 for assistance with this matter.
Answered by: NeilE
Date published: 2016-02-02

I bought my LG Tv model no.42ln5400 a little over 2 years ago and up until recently it was a great Tv but,now when I try to turn the power on it either won't come on or I spend hours just trying to get the TV to come on.Can you tell me what the problem is

Asked by: James R 2323
We paid extra for the LG brand and after a year and a half, the,backlight has gone out. Very disappointed 
Answered by: Bengal girl
Date published: 2016-01-29

How to make to a full size scrren

Asked by: Louise Roy
We appreciate your interest in this television. Adjust the ASPECT RATIO CONTROL to either the 16:9 or JUST SCAN settings in order to fill the screen.
Answered by: NeilE
Date published: 2016-01-26

I have a 50LN5400 and the picture began to flicker in the upper left (while looking at the front of TV) and now there is no longer a picture, just sound. Is there a fix for this or not?

Asked by: Oyoklk
Had the same with an lg 47ln5400. Screen went out, sound worked fine. When you power it on, the screen will flash for a half a second, then doesn't work.  This is a problem with defective LEDs in the set. You can fix it with a screwdriver, a new LED strip, and a few hours of work taking the set apart and fixing and then putting back together again. I just fixed mine yesterday. There's a YouTube video of a guy doing exactly this. It's about a 22 minute video you'll find if you search "repair LG 47ln5400 screen flash". Good luck!
Answered by: Davethatfixedhistv
Date published: 2016-01-29

Is this a smart tv

Asked by: valerie89
I apologize, but no; this television has not been designed with any network connection, nor with any Smart TV Apps.
Answered by: NeilE
Date published: 2015-12-30

How can i set up surrond sound to turn off when the tv does i have a 43"lg 5400 

Asked by: Rezz
We appreciate your interest in this television and its features. The remote control provided with this TV is not designed with the ability to control other devices.
Answered by: NeilE
Date published: 2015-12-30

Can you tell me the fastener sizes so I can mount the base? The originals were lost somewhere along the way. 

Asked by: rorypoulson
We appreciate your interest in this television. According to page 9 of the owner’s manual, it appears that the stand will require a total of 7 screws: four M4x14 and three P5x25 screws.
Answered by: NeilE
Date published: 2015-12-24
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