For wall mount installation instructions, refer to page 5 of the user manual.

The Haier LE75U9000SA has 3 HDMI interfaces.

To connect to a wireless network, select the 'WIFI' option and enter the password when prompted.

If your TV is not functioning properly, you can perform a System Recovery to reset it to its original state. Press the Ż / Ź button to select the General settings, then choose the System Recovery option.

The 'Noise Reduction' feature is used to clear up the input signal, which can help improve the picture quality by reducing noise and interference.

To adjust the sound mode on your Haier LE75U9000SA TV, you can select from the following options: Standard, Music, Theater, News, or User. Use the remote control to navigate to the sound settings and choose the desired mode.

To adjust the bass, treble, and balance settings, use the remote control to navigate to the sound settings. You can then adjust the bass, treble, and balance levels to your preference.

To set the channel number, use the Channel function on your TV. This will allow you to manually input the desired channel number.

To turn on or off the hearing impaired feature, you need to access the TV settings and navigate to the 'Hearing Impaired' option. From there, you can set it to 'On' or 'Off' according to your preference.

The default password for the TV lock feature is 0000.