Roku 40R3B5 40-inch Smart TV
Get the most out of your new TV
Follow these steps to get the most out of your new TV.
- Connect to the Internet
- It’s easy, and it will unlock a world of entertainment. All you need is a network connection. There are hundreds of free streaming channels, paid subscription services, and convenient ways to rent or buy a favorite movie or program.
- Pick your favorite streaming channels
- Find the entertainment you love. From the latest blockbuster movies to your favorite TV programs, with tons of live sports, a broad selection of music streaming channels, popular programming in a dozen international languages, 24×7 live news and so much more, your new Roku TV has your sweet spot. A paid subscription or other payments may be required for some channels.
- Find live broadcasts and streaming TV programs in the Live TV Channel Guide
- Use the Live TV Channel Guide to see not only what’s on TV right now, but what will be on in the coming two weeks. And for many over-the-air programs, if you start watching the program after it is already in progress, or you see something you missed in the Live TV Channel Guide, you can use More Ways to Watch to find streaming channels where you can see the program from the beginning, find other episodes, or entire seasons of the program, if applicable.
- Use Roku’s Smart TV experience to discover More Ways to watch
- Use this feature to find out how you can stream the program you are watching from the beginning, find more episodes of the program, discover similar programs and movies, and see the full description of the program.
- Personalize your Home screen
- Put your favorite streaming channels and TV inputs front-and-center on the Home screen. No more flipping through inputs or wading through complicated menus. You can even customize the names of each input and move tiles around so your most-often-used devices and streaming channels are only a click away.
- Search for your favorite movie, TV program, actor, or director
- Once you’re connected to the Internet, you can easily search across top streaming channels and live TV channels. Search by movie or TV program title, actor, or director—all from one place. Search by typing words or phrases using the on-screen keyboard or on your mobile device, or speak words or phrases in a conversational tone using Voice Search. Some channels and content require payment.
- Receive a Roku Zone when you search by popular genres or subjects.
- A Roku Zone is a collection of relevant entertainment organized into browsable rows such as New Releases, Free, and Rent or Buy. On 4K TVs, include “4K” in your search to see 4K movies and programs in the 4K Movies & TV Zone.
Connections and setup
Refer to your TV’s Quick Start Guide or other provided documentation to for model-specific information about attaching the base or a wall mount and making connections to AC power and to your other audio/video devices. The following information applies to all Roku TV models.
Connecting an antenna, cable, or satellite box
If you are using an antenna, CATV cable without a set-top box, or a cable or satellite box that has only an antenna output, connect a 75-ohm coaxial cable (not provided) from the device to the ANT/CABLE input on the TV.
Tip: If you are using an antenna with a 300-ohm twin-lead cable, you need to use a 300-to-75-ohm adapter (not provided) to adapt the twin-lead cable to a connection that is compatible with the TV’s antenna input. If you receive your TV stations through a set-top box from a cable or satellite TV provider, connect it to the TV using the best connection method available. From most to least desirable:
- HDMI® input – Digital HD and SD video
- AV input – analog SD video
- Antenna input – analog SD video using NTSC
Connecting external equipment with a composite AV video cable
If the best connection available on your device is AV or composite video output, connect it to the TV using a composite AV cable (not provided). Composite AV cables typically have three RCA-type plugs on each end, color coded as follows:
- Yellow – Video
- Red – Audio, right channel
- White or black – Audio, left channel
Connect each plug to the corresponding connector on the device and on the TV.
Note: Select models have an AV Input resembling a headphone jack. Use the breakout cable (included) to adapt this input to the three RCA-type plugs on your composite cable.
Connecting external equipment with an HDMI® cable
If possible, connect your devices using HDMI® cables (not provided). They help to provide the best video quality and also carry audio signals, so that only one cable is needed. For better picture quality, we recommend that you use cables designated as High Speed HDMI® Cables.
Tip: You might need to configure the device to send its signal through its HDMI® connector.
The connector labeled HDMI (ARC) has the additional ability to use the audio return channel to send digital audio to a receiver or soundbar, as explained in Connecting an AV receiver or digital soundbar. Only on select models: The connector labeled HDMI (eARC) provides the same functionality as the HDMI ARC connector, plus the ability to pass through full-resolution sound formats such as Dolby Atmos and DTS:X from and to devices that support these formats, without additional processing by the TV. Additional details are provided in Choosing an audio format.
Connecting headphones or analog soundbar
You can connect headphones or an analog soundbar (not provided) to the TV’s headphone jack.
Tip: Inserting a plug in the headphone jack disables the sound from the TV’s built-in speakers.
Warning: Loud noise can damage your hearing. When using headphones, use the lowest volume setting on your headphones that still lets you hear the sound.
Select models also have an audio line out connection that is not affected by TV volume or mute settings and does not disable the TV speakers. Use this connection when you want to use your amplifier or soundbar to control the TV volume. To turn off the TV’s built-in speakers, from the Home screen menu, navigate to Settings > Audio > TV speakers and change the setting.
Connecting headphones to the Roku Enhanced Voice remote
Select Roku TVs come with the Roku Enhanced Voice Remote or Roku Voice Remote Pro. On these models, you can connect headphones to the jack on the left side of the remote.
Tip: Inserting a plug in the remote’s headphone jack disables the sound from the TV’s built-in speakers or attached receiver or soundbar. The volume and mute controls on the right side of the remote adjust the volume level of the connected headphones.
Warning: Loud noise can damage your hearing. When using headphones, use the lowest volume setting on your headphones that still lets you hear the sound. You might notice that connecting headphones to your remote shortens the remote’s battery life somewhat.
Preparing for Internet connectivity
If you want to watch streaming content and take advantage of most of the cool features of your Roku TV, connect it to the Internet through a wireless modem/router or a wireless access point (not provided). The TV has a built-in wireless LAN adapter.
Note: The TV supports only its internal wireless network adapter—it does not support the use of a USB network adapter.
Select models have both wired and wireless network connectivity. To use the wired network connection, connect an RJ-45 Ethernet cable (not provided) from the jack on the back of your TV to your network router or switch. The wired connection automatically supports both 10 Base-T and 100 Base-T Ethernet.
Roku remote batteries
Open the back of your Roku remote and insert the included batteries, observing the proper orientation as indicated in the battery compartment. Reattach the back cover.
Roku TV remote
Use the following information to identify the buttons on your Roku remote.
Note: Remote buttons and features vary somewhat by model. Your remote might not have all the buttons or features listed.
- If your remote has a VOICE just below the purple pad, you have a Roku Voice remote.
- If your remote has a headphone jack on its left edge, you have a Roku Enhanced Voice remote or Roku Voice Remote Pro.
Roku Voice remotes have additional capabilities as noted in the following table.
BUTTON | FUNCTION | DESCRIPTION |
![]() | POWER | Turns the TV on and off. |
![]() | BACK | · Menu: Goes back to the previous menu/screen. · Home screen tile: Moves highlight back to the Home screen option. · Watching live TV or a TV input: Returns to Home screen. · Playing streaming content: Stops playing the stream and returns to the previous menu or screen. · Browsing streaming content: Goes to the previous level in the content tree. |
![]() | HOME | Immediately returns to the Home screen. |
![]() | DIRECTIONAL PAD | · Moves the highlight in the corresponding direction. · OK chooses the highlighted option. While watching TV:
· UP/DOWN changes channel. · LEFT displays the Live TV Channel Guide (connected mode) or channel list (non-connected mode). · LEFT/RIGHT TVs operating in non-connected mode: while in the channel list, switches between ALL CHANNELS and FAVORITE CHANNELS. TVs with Live TV Pause enabled: when the program is paused, it moves backward/forward approximately 10 seconds in the program buffer. · While in the channel list, OK selects the highlighted channel. While watching live TV: displays the program information banner. |
BUTTON | FUNCTION | DESCRIPTION |
| VOICE or SEARCH | Only on select models with Roku Voice remotes, hold and say the name of a movie, TV program, actor, director, or genre, including the special genres “free” and “4K.” Or, say a command to start streaming, change a channel, and more1. For more information, go to: go.roku.com/voicesearch |
![]() | REPLAY | Select models. Streaming programs that support this feature and TVs with Live TV Pause enabled, jumps back a few seconds with each press and resumes playing. If Live TV Pause is disabled, jumps to previous channel.
When using an on-screen keyboard: Backspaces in the text you are entering. In the Live TV Channel Guide2: Returns to the current day and time. |
![]() | ![]() | Scan backward, pause, play, and scan forward in streaming content and live TV channels (if Live TV Pause is enabled). Press REWIND or FAST FWD one, two, or three times to control the speed of the operation. REWIND and FAST FWD also jump backward and forward one screen at a time when viewing long lists, such as when you are browsing programs in the channel list or Live TV Channel Guide1. |
![]() | STAR | Displays additional options when available. On-screen hints let you know when this button is active. |
Panel buttons
Your TV has buttons on its side, bottom, or back panel that perform simple control functions. The TV panel buttons are not a substitute for the remote, as they do not give you access to all TV functions. Depending on the model, your TV has one of several different panel button designs. Choose the one that applies to your TV from the following list:
- Single button
- Three buttons
- Game-pad style joystick
- Four buttons
- Five buttons (with mute)
- Five buttons (without mute)
- Seven buttons
Single button
If your TV has this style of panel button, you can perform the following functions:
- Turn the TV on: short press.
- Display the Input List: short press when the TV is on.
- Select the next input in the Input List: short press while the TV is showing the Input List.
- Dismiss the Input List without changing inputs: no press.
- Turn the TV off: long press.
Short press = less than two seconds
Long press = more than two seconds
No press = no press within two seconds
Three buttons
If your TV has this style of panel buttons, you can perform the following functions:
- Turn TV on: middle button, short or long press.
- Volume up: right button when Input List is not active.
- Volume down: left button when Input List is not active.
- Display Input List: middle button, short press when TV is on.
- Highlight next input in the Input List: right button when the Input List is active.
- Highlight previous input in the Input List: left button when the Input List is active.
- Select highlighted item in the Input List: middle button, short press, or no press.
- Turn TV off: middle button, long press.
Short press = less than two seconds
Long press = more than two seconds
No press = no press within four seconds
Game-pad style joystick
If your TV has this style of panel button, you can perform the following functions:
- Press in: Toggle between power ON and Standby.
- Press up or down: Increase/decrease the volume.
- Press left or right: Switch inputs. Each press moves the highlight up or down one item. Pausing for a few moments selects the highlighted item.
Four buttons
If your TV has this style of panel buttons, you can perform the following functions:
- Power: Turns the power on and off.
- Input: Selects among TV inputs. Each press moves down one item. Pausing for a few moments selects the highlighted item.
- Volume +: Increases the volume.
- Volume –: Decreases the volume.
Five buttons (with mute)
If your TV has this style of panel buttons, you can perform the following functions. Note that the order of the buttons might vary from model to model. Examine the panel button labels to determine your TV model’s layout.
- Power: Turns the power on and off.
- Input: Selects among TV inputs. Each press moves down one item. Pausing for a few moments selects the highlighted item.
- Volume +: Increases the volume.
- Volume –: Decreases the volume.
- Mute: Mutes and unmutes the sound.
Five buttons (without mute)
If your TV has this style of panel buttons, you can perform the following functions. Note that the order of the buttons might vary from model to model. Examine the panel button labels to determine your TV model’s layout.
- Power: Turns the power on and off.
- Input +: Selects the next TV input. Each press moves down one item. Pausing for a few moments selects the highlighted item.
- Input -: Selects the previous TV input. Each press moves up one item. Pausing for a few moments selects the highlighted item.
- Volume +: Increases the volume.
- Volume –: Decreases the volume.
Seven buttons
If your TV has this style of panel buttons, you can perform the following functions. Note that the order of the buttons might vary from model to model. Examine the panel button labels to determine your TV model’s layout.
- Input: Selects among TV inputs. Each press moves down one item. Pressing Channel + or Channel – moves the highlight up or down. Pausing for a few moments selects the highlighted item.
- Channel +: Moves the highlighted item up in the current menu.
- Channel –: Moves the highlighted item down in the current menu.
- Volume +: Increases the volume.
- Volume –: Decreases the volume.
- Mute: Mutes and unmutes the sound.
- Power: Turns the power on and off.
Guided Setup
With the preliminaries out of the way, it’s time to turn on your TV. As the TV starts for the first time, it leads you through Guided Setup, which configures the TV before you start to use it. During Guided Setup, you’ll:
- Answer a few questions
- Provide network connection information
- Get a software update
- Link your TV to your Roku account.
- Connect devices such as a DVD player, game console, or cable box.
Starting Guided Setup
To start Guided Setup, press POWER on the remote to turn on your TV.
Note: Guided Setup normally runs only once, the first time you turn on your TV. If you need to run Guided Setup again, you must perform a factory reset as explained in Factory reset everything. When you first turn on your TV, it will take a few seconds to get itself ready. You’ll notice the following things happening:
- The status indicator blinks every time the TV is busy doing something; in this case it’s powering up and getting ready for you.
- The splash screen appears and the status indicator blinks slowly for a few more seconds. The power-on screen shows a brand logo while the TV starts up.
- After a few seconds, Guided Setup starts.
Other devices
Mirror your phone or tablet
Only in connected mode, your TV has a feature called screen mirroring that lets you mirror your compatible smartphone or tablet on your TV. Share videos, photos, web pages, and more from compatible devices. By default, your TV’s screen mirroring mode is set to Prompt. In this mode, when your TV receives a screen mirroring request, it prompts you with the following options, unless you have previously selected Always allow or Never allow for the device:
- Always accept – Always accept mirrored content from the mobile device without additional prompting in the future for this device.
- Accept – Accept mirrored content from the mobile device this time only. Prompt again next time this device attempts to mirror content.
- Ignore – Do not accept mirrored content from the mobile device at this time. Prompt again next time this device attempts to mirror content.
- Always ignore – Never accept mirrored content from this mobile device.
Note: You can manage and change the list of devices that are set to Always allow or Never allow by navigating from the Home screen menu to Settings > System > Screen mirroring > Screen mirroring devices. - If you prefer to always allow all screen mirroring attempts without prompting, go to Settings > System > Screen mirroring, and then change the Screen mirroring mode to Always allow.
- If you prefer to never allow screen mirroring from any device, change the Screen mirroring mode to Never allow.
For information on which devices may work with screen mirroring and instructions on how to use it, go to the following link on the Roku web site: go.roku.com/screenmirroring
Roku mobile app
Roku makes the Roku mobile app free for compatible iOS® and Android™ mobile devices. The Roku mobile app is an alternative control center for your Roku TV, plus a way to stream Roku content while you are on the go. The Roku mobile app helps you find and add new Roku Channels, more easily search and find something to watch and even use your voice to search without typing. Find more information and get the Roku mobile app by using the following link to the Roku website: go.roku.com/mobileapp
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Roku 40R3B5 40-inch Smart TV-FAQs