Lena Torres
LG 55UJ7700 is a 55 Class LED TV from LG's UJ7700 series. It is a 4K UHD TV with HDR support, including HDR10 and HLG HDR standards, and it also supports Dolby Vision. The TV features a 20W sound system with 2X 10W speakers, delivering an average sound quality according to some reviews. LG 55UJ7700 offers a seamless experience with its Magic Remote, allowing users to connect their mobile devices and access their favourite apps and content easily. While the TV boasts impressive features, it is unclear whether it supports LG's Wireless Sound Sync technology, which enables seamless audio connectivity and synchronization with compatible LG audio devices.
| Characteristics | Values |
|---|---|
| Display | 55" LED TV |
| Resolution | 2160p 4K UHD |
| HDR | Active HDR, HDR10, HLG HDR, Dolby Vision |
| Refresh Rate | TruMotion 120Hz |
| OS | WebOS 3.5 |
| Audio | 20W sound system (2x 10W speakers) |
| Connectivity | Bluetooth, Wi-Fi, HDMI (eARC/ARC) |
| Features | Screen share, content share, Magic Remote, game mode |
| Sound Sync | LG Wireless Sound Sync, LG Sound Sync |
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What You'll Learn
LG 55UJ7700's sound quality
The LG 55UJ7700 is a 55-inch 4K UHD HDR Smart LED TV. It features Wireless Sound Sync, which allows for seamless audio connectivity with compatible LG audio devices, such as soundbars and home theatres. This technology enhances the overall viewing experience by synchronizing audio and video playback, resulting in a more immersive and enjoyable sound experience.
The LG 55UJ7700 has very good sound quality, better than most models in its class. It delivers a satisfying listening experience, with deep bass and nicely detailed treble. The speakers produce a good volume range, making them suitable for typical room environments without obvious distortion. At higher volumes, dynamic compression prevents sound distortion but may limit the clarity of loudness peaks.
The LG 55UJ7700 has an output power of 20 watts and a 2-channel speaker system. It also features Ultra Surround, which enhances the surround sound experience. The TV supports DTS-HD audio decoding and has Wi-Fi and Bluetooth connectivity, allowing for wireless audio streaming and synchronization with compatible devices.
In terms of picture quality, the LG 55UJ7700 performs well with its IPS panel, which provides better picture quality from side angles without significant degradation of colour saturation and contrast. It features Active HDR with Dolby Vision, improving the brightness and luminosity of images, and enhancing contrast in various image areas. The local dimming feature can be adjusted to high, medium, or low settings to control the picture's brightness and contrast. The TruMotion feature is designed for judder reduction but may add an unnatural look to the picture, so it is recommended to keep it off for most content.
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LG Sound Sync
To use LG Wireless Sound Sync, you can follow these steps:
- Press the home button on your magic remote, then click on the settings icon, select sound, and then sound out.
- Change the setting from "TV Speaker" or Internal TV Speaker to "LG Sound Sync Wireless" or "LG Sound Sync (Wireless)".
- Press the "Device Selection" button, and your TV will start searching for compatible devices.
- Put the soundbar into Bluetooth mode by pressing the "LG TV" button on the remote control of select model LG Sound Bars.
- The soundbar name will appear on your TV screen. Click on the circle next to the name and wait for the Bluetooth connection to be established.
- Once connected, the soundbar will appear under "Paired Devices".
It is important to note that LG Sound Sync may not work with all third-party devices, and volume control with the Magic Remote may be limited to internal speakers only. Additionally, LG Sound Sync can also be set up using Wi-Fi connectivity, allowing for synchronized audio playback across multiple devices and enhancing the home entertainment experience.
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LG 55UJ7700's compatibility with external speakers
The LG 55UJ7700 has sound sync capabilities, which allow for seamless audio connectivity and synchronization between the TV and compatible audio devices. This technology enhances the overall viewing experience by synchronizing audio and video playback, resulting in a more immersive and enjoyable sound experience.
When it comes to connecting external speakers to the LG 55UJ7700, there are several options available depending on the specific model and the types of connections it offers. Here are some common methods:
Using HDMI ARC (Audio Return Channel)
The HDMI ARC port on your LG TV can be used to connect to a receiver or soundbar. To do this, connect the HDMI1 (ARC) port on your TV to the monitor output of your receiver. Ensure that in the receiver's menu, HDMI control is enabled and the HDMI audio output is set to AMP.
Optical Audio Output
The LG 55UJ7700 may also have an optical audio output, which can be used to connect to external speakers. This output is often labelled as "optical digital audio out" and can provide 5.1 surround sound.
LG Wireless Sound Sync
If your LG 55UJ7700 has WebOS 3.5 or an older version, it supports LG Wireless Sound Sync. This feature allows for a wireless connection between your TV and compatible LG Sound Bars or Home Theaters using Bluetooth technology. To enable this, press the home button on your magic remote, go to settings, select 'Sound', and then switch to 'LG Sound Sync Wireless'.
Analog to Digital Converter
If you are trying to connect an external speaker with a 3.5mm AUX input to your LG 55UJ7700, you may need an analog-to-digital converter. This is because simply using an RCA to 3.5mm jack may not work.
It is important to refer to the specific model of your LG 55UJ7700 and the external speakers you wish to connect, as certain models may have different connection ports and capabilities.
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LG Wireless Sound Sync
To use LG Wireless Sound Sync, you must first press the home button on the magic remote, then click on the settings icon, select sound, and then sound out. The default setting is typically the internal TV speaker, so you will need to switch to LG Sound Sync Wireless. Next, change the setting from "TV Speaker" to "LG Sound Sync Wireless" and press "Device Selection". The TV will then begin searching for compatible devices.
To connect an LG soundbar, put the soundbar into Bluetooth mode by pressing the LG TV button. The soundbar name will appear on the TV screen, and you can click on the circle next to the name and wait for the Bluetooth connection to be made. The soundbar will now appear under "Paired Devices".
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LG 55UJ7700's audio and video sync troubleshooting
LG 55UJ7700 is an LG TV model that supports LG Sound Sync. This technology enhances the viewing experience by synchronizing audio and video playback, resulting in a more immersive and enjoyable sound experience.
Troubleshooting Audio and Video Sync Issues on LG 55UJ7700:
If you are experiencing audio and video sync issues on your LG 55UJ7700, here are some troubleshooting steps you can follow:
- Check for Channel-Specific Issues: If the audio and video are out of sync only on a particular channel, it is likely a problem with the broadcast signal of that channel. Contact your broadcast service provider for assistance.
- Try Different Audio Output Methods: Use both the TV speaker and an additional external speaker. If the sound is out of sync, adjust the sync in the settings. You can try delaying the TV's audio output to sync it with the external speaker.
- Adjust AV Sync Settings:
- Turn on your TV and press the "Settings" button on your remote.
- Navigate to " [All] Settings" → " [Sound] → " [Additional] Settings" → "AV Sync Adjustment" or " [Match Screen and Sound]."
- Select " [Bypass]" and set it to " [ON]."
- Check if the audio and video are now synced.
Fine-Tune Audio Output Speed:
- Press the "Settings" button on your remote.
- Go to "Home" or "Menu" → "Settings" → "Sound" → "Picture/Sound Sync Control" and set it to 'On'.
- Move to "TV Speaker" and adjust the audio output speed using the +/- buttons. You can make it faster with the [-] button or slower with the [+] button.
- Bluetooth and Wi-Fi Connectivity: LG Sound Sync also allows for wireless connectivity. Ensure that your compatible devices are connected via Bluetooth or Wi-Fi, as this can sometimes help with sync issues.
- Contact Support: If none of the above steps resolve the issue, refer to LG's official support pages for further troubleshooting guides, or contact their customer support team for assistance with your specific model.
By following these steps, you should be able to troubleshoot and resolve audio and video sync issues on your LG 55UJ7700 TV.
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