How to tune channel when channels are locked?

Country (Area)

Broadcasting > Channel Settings > Country (Area)

Select your country so that the TV can correctly auto-tune the broadcasting channels. This depends
on the country or region.
When the PIN input screen appears,enter your 4 digit PIN number.

Digital Channel
Change the country for digital channels.

Analogue Channel
Change the country for analogue channels.

Manual Tuning

Broadcasting > Channel Settings > Manual Tuning

Scans for a channel manually and stores in the TV.
If a channel is locked using the Channel Lock function, the PIN input window appears.
This function depends on the country and region

Page 147 of this User Manual located on this page will give you more information. (Sorry it wouldn't let me link the PDF manual directly)

UE40H6240AK UE40H6240AKXXU Support SAMSUNG UK

Unplug from power TOTALLY and leave for 5 minutes. Repower unit and with remote press Mode button and then select Auto Retune and allow TV to reselect all channels again. This will take a while and when it is completed the TV will let you know by tuning itself to the last tuned channel. You should then be able to choose all the channels with the remote. Good luck.

To see if the problem is with your remote control, go to the receiver and use the channel up/down buttons on the receiver itself. If you can change your channels with the buttons on the receiver, the batteries in your remote control probably need to be changed.

If you can't change channels from the receiver, turn off the receiver. Then unplug it for at least 15 seconds. Plug the receiver back it and turn it on. Again, try changing channels from the receiver itself.

Tune to a channel, and while programming is playing, try tuning to the missing channel by entering the channel number on the remote control keypad to see if channels change. Do not try to select the channel from a channel list, program guide, or favorites list.

If this approach takes you to the correct channel, you need to adjust your favorites list function. Press the "guide" button on your remote. Look for a button on your remote called "fav" or "list." Press it several times and watch for an indication at the top of the guide that you are moving from "all channels" to a particular favorites list.

If you are locked on one channel only, your Channel Lock feature is likely active. Consult your owner's manual to unlock the rest of your channels. See your owner's manual for information on managing favorite channel lists and locking out channels. Enter your password, if necessary.

Hi
Before tuning the set to auto tune mode, make sure the antenna or cable, whatever may, connected to its appropriate sockets at the back of the set firmly. To make it autotune:

As new services are broadcast, it will be necessary to

re-tune the television in order to view them.

Auto Tuning will completely re-tune the television

and can be used to update the channel list. It is

recommended that Auto Tuning is run periodically to
ensure that all new services are added. All current

channels and settings, i.e. locked channels, will be
lost.

[1] Select the SETUP from the main menu by using

Up or Down buttons. Press OK and Setup menu
will be displayed.

[2] Select the Installation from the Setup menu

by using Up or Down buttons. Press OK and
Installation menu will be displayed.

]3] Select Automatic Channel Scan from the Installation

menu by using Up or Down buttons and press OK.

A screen will appear warning that previous digital

programmes and settings will be deleted. Select Yes
and press OK to continue with the Auto tuning.

The television will start to search for all available

stations.You must allow the television to complete

the search. When the search is complete the Auto

tuning screen will display the total number of
services found.

* After search is completed for digital channels, a

message asking whether to search for analogue
channels appears on the screen

** Press the OK button to search for analogue

channels. The following menu appears on the screen
for analogue channel search
OK.

To see if the problem is with your remote control, go to the receiver and use the channel up/down buttons on the receiver itself. If you can change your channels with the buttons on the receiver, the batteries in your remote control probably need to be changed.

If you can't change channels from the receiver, turn off the receiver. Then unplug it for at least 15 seconds. Plug the receiver back it and turn it on. Again, try changing channels from the receiver itself.

Tune to a channel, and while programming is playing, try tuning to the missing channel by entering the channel number on the remote control keypad to see if channels change. Do not try to select the channel from a channel list, program guide, or favorites list.

If this approach takes you to the correct channel, you need to adjust your favorites list function. Press the "guide" button on your remote. Look for a button on your remote called "fav" or "list." Press it several times and watch for an indication at the top of the guide that you are moving from "all channels" to a particular favorites list.

If you are locked on one channel only, your Channel Lock feature is likely active. Consult your owner's manual to unlock the rest of your channels. See your owner's manual for information on managing favorite channel lists and locking out channels. Enter your password, if necessary.

Just go to the main settings. You will see an "autoprogram" option. Select this and it will scan all available channels and delete non-airing channels

The quick user guide is available here: F32648 F36648

Tuning is automatic on this TV, ensure that auto channel search is on from menu.

Advanced Auto
Channel Search
Auto Cable/Air Switch sets tuner
to cable or “off-air” frequencies
during initial setup. Then system
automatically scans for and locks
active channels into channel
memory.

My Tv is locked and cannot start. it asks for password.
how to open it?

Go to the channel where Child Lock is ON
Press " --- " Key ( below channel 9 button) for few seconds,
Child Lock will be OFF
Press again Tune Lock will be OFF.

my sony television is previously used for my daughter and she accidently stepped on the control and she locked some channels