You need to set to the correct "Sound System" according to local TV station before Auto Tuning.
The default setting is set at "BG".
This function is only available in TV mode. The volume level of different channels may vary significantly
due to different broadcast stations. You can adjust the volume of a channel to the same level as the
other channels to avoid having to adjust the volume each time you change channels.
Set the channel number.
Select "On" to skip the current channel.
(On / Off)
Select the appropriate color system.
(Auto / PAL / NTSC / SECAM)
Select the appropriate sound system.
(BG / I / DK / M)
Tune each channel manually.
Fine tune the current channel.
Tune all the available channels automatically.
Change the order of the channels stored on the TV.
(Channel No. / Target Channel / Swap)
Adjust to its average volume level of each individual channel.