Samsung JU640D UN65JU640DFXZA Quick Setup Guide
![Samsung JU640D UN65JU640DFXZA TV manual cover](/images/lipmsLwbzmwPtUhQgfqBMtnw/thumbs/thumb175x175.webp)
To connect your TV to Wi-Fi, press the Menu button on your remote, go to Network, select Network Settings, and choose Wireless. Select your network from the list and enter the password if required.
First, check if the power cord is properly connected. Ensure the outlet is working by testing it with another device. If the TV still does not turn on, try a different power outlet. If the issue persists, a service call might be required.
To perform a factory reset, press the Menu button, go to Support, select Self Diagnosis, and then choose Reset. Enter your security PIN, which is typically 0000, to complete the process.
Screen flickering can be caused by a loose HDMI connection or a faulty cable. Try reseating the cable or using a different HDMI cable. If the problem continues, check the Picture settings and try reducing the Refresh Rate.
To update the software, press the Menu button, go to Support, and select Software Update. Choose Update Now to download and install the latest firmware. Ensure your TV is connected to the internet.
First, check the volume settings and ensure the TV is not muted. Verify that external audio devices are properly connected. Check the Sound settings and ensure the correct audio output is selected.
Yes, you can control your TV using the Samsung Smart View app, available for iOS and Android devices. Connect your phone and TV to the same Wi-Fi network, then follow the app instructions to pair the devices.
Press the Menu button, go to Picture, and choose Picture Mode. Adjust settings such as Brightness, Contrast, and Sharpness to your preference. You can also select presets like Standard, Movie, or Dynamic for different viewing experiences.
Use a microfiber cloth to gently wipe the screen. Avoid applying too much pressure and do not use cleaning solutions or water directly on the screen. For stubborn spots, dampen the cloth slightly with water.
To enable closed captions, press the Menu button, go to Broadcast, and select Caption Settings. Turn on Captions and adjust the settings to your preference.