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Samsung LN-R408D

40" high-definition LCD TV

Item # 305LNR408D

Samsung's engineers must have been working overtime, because the widescreen 40" LN-R408D is a major leap forward in...

Samsung's engineers must have been working overtime, because the widescreen 40" LN-R408D is a major leap forward in...

Discontinued item

Item # 305LNR408D

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About the Samsung LN-R408D

Samsung's engineers must have been working overtime, because the widescreen 40" LN-R408D is a major leap forward in some important ways — especially its picture quality. Even die-hard plasma fans will be impressed by this LCD's strikingly rich, realistic images.
NFL and Samsung

Samsung's engineers must have been working overtime, because the widescreen 40" LN-R408D is a major leap forward in some important ways — especially its picture quality. Even die-hard plasma fans will be impressed by this LCD's strikingly rich, realistic images.

With this latest-generation LCD panel design, Samsung has really improved contrast and the ability to reproduce deep blacks. More advanced video processing increases the number of possible on-screen colors from millions to billions, so that skin tones and subtle shading look more natural. This model's fast "pixel response" time virtually eliminates the smearing effect of motion lag that plagued earlier LCD TVs.

This is Samsung's first home theater-sized LCD with a built-in "Digital Cable Ready" tuner. The set's tuners can receive analog and digital signals from both over-the-air broadcasts and cable TV. To get the most out of the built-in cable tuner, ask your cable provider about a CableCARD. Using one can simplify your life by eliminating the need for a separate set-top cable box and remote.

The LN-R408D's dual-mode design means it is equally brilliant as a TV and computer display. In addition to its array of inputs for your video components, there's also a standard PC input. The Picture-in-Picture feature even lets you simultaneously surf channels and surf the Web. LCD panels are naturally resistant to screen "burn-in" — they don't suffer permanent damage when displaying fixed images for extended periods. That makes this Samsung an excellent all-in-one display choice for TV, PC, and video game use.

Tip: To find out if HDTV signals are available in your area, visit this helpful site and punch in your zip code.

Large Item Special Shipping: This item will be delivered and placed in any accessible room in your home. Available to physical addresses in 50 United States only. Limited delivery available to Alaska and Hawaii for $99 per item — call 1-888-955-6000 for more details. Sorry, we can't ship to P.O. Boxes or freight forwarders. Delivery takes 5-7 business days once your order has been processed. Extra charges may apply to items that must be carried up more than 5 flights of stairs. Allow extra time for delivery to remote addresses. Free return shipping not available with this model.


Product highlights:

  • high-definition TV — receives and decodes digital standard-definition and HDTV signals from over-the-air broadcasts (antenna required) and cable TV service (CableCARD™ required)
  • Patterned Vertical Alignment screen for high contrast
  • widescreen 16:9 aspect ratio
  • 1366 x 768 pixels
  • fast pixel response time: 12 milliseconds
  • 3000:1 Dynamic Contrast Ratio
  • 170°(H) x 170°(V) viewing angle
  • 10-bit video processing (3.2 billion colors)
  • built-in scaler upconverts non-HD signals to 768p
  • DNIe™ (Digital Natural Image engine) picture enhancement
  • 1-tuner Picture-in-Picture (inset)
  • built-in stereo speakers (10 watts x 2)
  • multibrand remote control
  • picture settings memory for each video input
  • 5 A/V inputs, including:
    • 1 composite video
    • 1 S-video
    • 2 HD-compatible component video (accepts 1080i/720p/480p/480i signals)
    • 1 HDMI digital audio/video input
  • PC input: analog RGB (D-Sub 15-pin)
  • 2 RF inputs (1 Air, 1 Cable)
  • optical digital audio output for Dolby® Digital
  • detachable stand (depth is 13")
  • wall-mountable (bracket not included)
  • 39"W x 27-5/8"H x 5-1/8"D (29-3/4"H x 13"D on stand)
  • weight: 60 lbs.
  • warranty: 1 year parts & labor — in-home service
  • Our 60-day money-back guarantee
  • Contact your local cable provider for details regarding the availability and costs of CableCARD-related services
  • MFR # LNR408D

What's in the box:

  • 40" Widescreen LCD TV/Monitor
  • 1 Stand (installed)
  • 4 Phillips-head screws for attaching stand (installed)
  • 1 Plastic cover bottom
  • BN59-00455 Wireless remote control
  • 2 "AAA" batteries
  • 5.75' AC power cord
  • 9.5' Antenna cable (has slip-on male "F"-type connectors on each end)
  • 9.75' Anynet cable (has a minijack stereo connector on each end)
  • 1 Cleaning cloth
  • Owner's Instructions
  • Anynet AV Owner's Instructions
  • Important Safety Instructions
  • North American Limited Warranty Statement
  • Limited Warranty to Original Purchaser
  • Product Registration Card

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More details on the Samsung LN-R408D

Stacey B.

Features & specs

Screen Size 40"
Aspect Ratio 16:9
Screen Resolution (pixels) 1366 x 768
Screen Refresh Rate ---
Display Type LED-LCD
Backlight Type Other
Quantum Dot Color N/A
Video Processing Technology ---
HDR (High Dynamic Range)
HDR10 No
HDR10+ No
Dolby Vision No
Next-gen Gaming Features
VRR (Variable Refresh Rate) No
ALLM (Auto Low Latency Mode) No
4K/120Hz HDMI Inputs ---
Streaming Features
Internet Movie Streaming ---
Bluetooth Audio Streaming No
Apple AirPlay 2 No
Chromecast built-in No
HDMI Inputs 1
HDMI Version ---
Audio Return Channel No
Component Video Inputs 2
Composite Video Inputs 1
3.5mm Composite A/V Inputs 0
RF Inputs 2
USB Ports ---
Optical Digital Audio Output 1 Rear
Analog Audio/Headphone Output 1
Voice Remote ---
Control by app No
Amazon Alexa No
Google Assistant No
Power Consumption
Estimated Yearly Electricity Use (EnergyGuide) Not Given
Estimated Yearly Energy Cost (EnergyGuide) Not Given
Dimensions & Mounting Information
Width (inches) 39
Height with Stand (inches) 29-3/4
Height without Stand (inches) 27-5/8
Depth with Stand (inches) 13
Depth without Stand (inches) 5-1/8
Stand Width (inches) 24-3/8
Weight with Stand 59.96 lbs
Weight without Stand Not available
Wall Mountable Yes
Wall Bracket Included No
Mounting Hole Pattern ---
Pedestal Stand Y
Bezel Dimensions ---
General Info
Parts Warranty 1 Year
Labor Warranty 1 Year
Type of Warranty Service In-home
Model Year ---
Series Name ---
The Samsung LN-R408D replaces these items:

Product Research

Mounting Options
Remote Control
Inputs and Outputs Notes


CableCARD Slot: This TV has a back panel CableCARD slot that allows digital cable reception without a set-top box. CableCARDs will be available from your local cable provider.

HDTV (ATSC) Tuner: The TV has a built-in over-the-air HDTV (ATSC) tuner, so you don't have to purchase a separate digital set-top box to receive and decode over-the-air HDTV/SDTV signals.

Display Resolution: The LN-R408D has a display resolution of 1366 x 768. The unit will accept 1080i, 720p, 480i and 480p signals, and has a built-in image "scaler" to handle a variety of digital and analog audio/video sources. The "scaler" converts the signals from all video sources to match the LCD panel's native 768p resolution.

High Contrast Ratio: The contrast ratio of this unit is 3000:1, which gives you brilliant brightness and contrast for superior picture and detail from both PC and TV images.

Digital Natural Image Engine (DNIe): Samsung's exclusive Digital Natural Image engine makes the sharpest and clearest images possible, regardless of the profile of input signals:

  • Motion Optimizer: fast-moving images are optimized to produce more natural-looking motion, thus reducing video noise or blurring

  • Contrast Enhancer: brightness and contrast levels are enhanced for deeper, richer blacks with greater detail, and more natural whites

  • Color Optimizer: colors are reproduced with a more lifelike realism, whites are more accurate, and skin tones are given a more natural hue

  • Detail Enhancer: DNIe analyzes video signal elements in order to produce sharper detail, clearer image separation and more natural edge transition

  • My Color Control: Samsung's patented "My Color Control" technology allows you to control specific colors without affecting the whole screen. Now, Samsung provides six-color control selections: white, red, pink, yellow, green and blue.

10-bit Processing: Samsung's 10-bit processing method produces 3.2 billion lifelike colors to ensure a more natural and vivid picture and aids in video signal processing of analog sources.

Picture Modes: You can choose one of the following picture modes:

  • Standard: resets the standard factory settings
  • Dynamic: for viewing the TV during the day, or when there is bright light in the room
  • Movie: for viewing the TV in low light, or when playing video games
  • Custom: allows you to adjust and store the following settings: contrast, brightness, sharpness, color, tint, and color tone

Picture Sizes: You can choose one of the following picture sizes:

  • 16:9: sets the picture to 16:9 wide mode

  • Panorama: use this mode for the wide aspect ratio of a panoramic picture

  • Zoom 1: magnifies the size of the picture and allows you to move the enlarged picture using the arrows on the remote

  • Zoom 2: magnifies the size of the picture more than Zoom 1 and allows you to move the enlarged picture using the arrows on the remote

  • 4:3: sets the picture to 4:3 normal mode

PC Display: The PC input allows you to connect a personal computer with a D-Sub 15-pin output, allowing you to use the TV as a high-resolution computer monitor. In PC mode, you can adjust the following picture quality settings: Coarse and Fine, both of which allow you to remove picture noise.

Electronic Program Guide: The TV has an "Electronic Program Guide" to help you navigate through all the possible viewing options. The guide supplies information, such as program lists, start and end times of all available channels. In addition, detailed information about the program is often available in the guide.

Reminder List: If you have made a scheduled viewing list of programs you would like to see, the channel will be automatically switched to the scheduled program at the scheduled time even if you are watching another program.

Picture-In-Picture (PIP): The Picture-In-Picture feature allows you to simultaneously watch two video sources (such as a TV, VCR, or DVD), or watch one video source while using the PC input. The TV has only one tuner, so you cannot watch two TV channels at the same time. There are three PIP views: two side-by-side split screens or a small window inside of the full screen. The small PIP window can be moved to any of the screen's four corners.

Picture Freeze: This feature allows you to freeze an image on the screen from a video source or PC. This feature can only be activated from the remote control.

Digital Signal Strength Meter: The digital signal strength meter can be used to help you find the antenna position that delivers the highest HDTV digital signal strength.

Analog Channel Fine Tuning: The fine tuning feature allows you to manually adjust analog channels for optimal reception. A separate fine tuning setting may be put into the TV's memory for each analog channel.

Low Noise Amplifier (LNA): When the TV's antenna setting is on "Air", instead of "Cable", sometimes reception can be improved by boosting the incoming signal using the LNA function. A separate LNA setting may be put into the TV's memory for each channel.

Auto Volume: Auto volume automatically adjusts the volume of the desired channel by lowering the sound output when the modulation signal is high or by raising the sound output when the modulation signal is low.

Digital Noise Reduction: If the broadcast signal received by your TV is weak, you can activate the Digital Noise Reduction feature to help reduce any static and ghosting that may appear on the screen.

Sound Settings: You can choose from the following sound settings:

  • Standard: resets the standard factory settings

  • Music: for watching music videos and concerts

  • Movie: for watching movies

  • Speech: for watching a show that is mostly dialogue

  • Custom: allows you to adjust the 5-band EQ, which includes the following frequencies: 100 Hz, 300 Hz, 1 kHz, 3 kHz, and 10 kHz

  • SRS TruSurround XT: TruSurround is a patented SRS technology that solves the problem of playing 5.1 multichannel content over two speakers. TruSurround delivers a compelling, virtual surround sound experience through the two speaker internal playback system. It is fully compatible with all multi-channel formats.

Sleep Timer: The sleep timer switches the television off after a specified amount of time. The sleep timer can be set to 30, 60, 90, 120, 150, or 180 minutes.

On/Off Timer: The On/Off timer allows you to program the television to turn itself on and off by selecting a specific on time and a specific off time. You can also choose the "On Timer Channel" and "On Timer Volume."

Brightness Sensor: The front-panel brightness sensor adjusts the screen brightness automatically depending on the surrounding lighting conditions.

Anynet: The LN-R408D features Anynet, an A/V network system to automatically control compatible Samsung audio/video devices through the Anynet menu via the TV's remote control.

Mounting Options

Detachable Stand: The LN-R408D comes with a vertical stand for easy placement on top of a counter or table. On the stand, the TV cannot be tilted or swiveled.

Wall Mounting Option: For wall mounting, an optional wall-mount bracket is available from the manufacturer.

VESA Mounting Bracket Standard: The TV also has 4 mounting holes on the back for an optional wall-mount bracket. The spacing of the mounting holes is VESA 200mm x 200mm, in accordance with the industry standards set by the Video Electronics Standards Association. The mounting holes accommodate M6 screws.

Kensington Lock: When mounting the monitor in a public place, you can secure it with an optional anti-theft device called a Kensington Lock. This TV has a slot on the rear panel to accommodate a Kensington Lock device. 

Remote Control

Multibrand Remote: The supplied remote is pre-programmed to operate this unit and a number of functions on other brands of components, including VCRs, cable boxes, and DVD players. A small LCD at the top of the remote displays the current mode. Several controls are located under a sliding lid that covers the bottom quarter of the remote. 

Inputs and Outputs Notes

HDMI/DVI Input: This input consists of left and right audio jacks and an HDMI terminal. The HDMI jack can accommodate a copy-protected digital connection (HDCP) to other devices that have compatible interfaces. The HDMI jack is compliant with the EIA/CEA-861/861B standard and is not intended for use with personal computers. If you want to connect a DVI-compatible device, you will need an HDMI-to-DVI adapter cable. Since DVI does not carry audio signals, a stereo audio input is provided for the HDMI input. In addition to the HDMI-to-DVI adapter cable, you will also need stereo audio cables.

Note: The HDMI jack will accept 1080i, 720p, 480p, and 480i signals.

PC: This input consists of a stereo minijack and an analog RGB (D-Sub 15-pin) jack. This jack allows you to connect a personal computer with a D-Sub 15-pin output. When using the RGB (D-Sub 15-pin) jack, you must use the PC Audio input for your audio connection.

Component Video Inputs: The 2 sets of component video inputs will accept 1080i, 720p, 480p and 480i signals.

Anynet: A 3.5mm (1/8") minijack is provided for connecting the TV with a Samsung Anynet-compatible component, allowing the connected device to be controlled by the TV remote.

"Service" Jack: The rear panel of the TV has a Service jack for repair and software upgrades only.

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