Initial setup on Bravia 26" won't come up

J, it sounds like it may not be getting any input from cable or satellite, try switching cable and inputs around, try VCR or DVD player. You may need a firmware or software update.
Some forums say to unplug and wait 10 min. then it resets.
Check links below.
Sony eSupport KDL 32NL140 Support

Stuck with initial setup screens on my Sony Bravia 4k Android TV

Stuck with initial setup screens on my Sony Bravia 4k Android TV

Hi! and Welcome to Fixya!

What you have on the tv screen is a warning sign that your tv is currently updating its software. A hand holding a power plug with red circle on it says do not unplug the tv while its running the software update. The usual time for the update to finish is 60 minutes. It may took more than 60 minutes if you have a slow internet speed. This is normal especially if you are running the software update for the first time during the initial setup. The next time tv performs software updates it will take shorter time.

However, if the updates took more than two hours, the tv may be frozen. You can unplug and plug it back in and start from the initial setup again.

On some rare occasion, the tv may not proceed with the initial setup. You may have to turn off your modem to complete the initial setup. when initial setup is done, connect your tv to network and run software update again.

Let me know if you still have other questions.

1. Turn off the TV and unplug all the HDMI connections to the TV.
2. Turn on the TV and while holding down the up arrow on the remote control, press the power button.
3. The TV will turn itself off, then back on again then release the up arrow button
4. Complete the initial TV setup wizard
5. Turn off the TV and plug back in all the HDMI cables.
6. Check to see if the inputs are working.
Hope this helps.

Your TV is in store demo mode.

To fix this, access the TV's menu and find the option to run initial setup. At the beginning of initial set-up, you'll be asked whether or not the TV should be put into Home or Retail mode. Choose Home.

Press Menu on tv remote, go to Settings and select Factory Reset and press enter button on remote, tv will reset to factory default settings and turn Off and On again itself, now select HOME mode instead of Shop mode to avoid demo mode and go by initial setup screen instructions.
Above are generic info about Sony bravia tv, let me know model number of your tv if you do not see factory reset option in settings menu.
Thanks.

Be sure to complete the INITIAL SETUP to use this service.
If you have an user manual you may check it out for help to complete the INITIAL SETUP. Or else, you can have the correct page of INITIAL SETUP here:
http://www.retrevo.com/pdf/23566bh638/21/Setting+Up+the+Channel+List+–+Initial+Setup#q=Sony+KDL-40W4100
This link refers you to the page 16 of the user manual of your model. Please check page 17 also to complete the INITIAL SETUP. To go to this link, just copy-paste it in your address bar.

Hi,
you should restore the factory settings to do this

• Turn on the TV.
• While holding down <up arrow> button on the remote control, press POWER on the TV. (The TV will turn itself off, then back on again.)
  Release <up arrow>
• IMPORTANT: The reset will clear all of your customized settings
  including the Parental Lock setting.
• initial setup run automatically
• if you have doubts on initial setup download this pdf
  

Probably you are in "shop" mode of TV. Try to reset your TV and go through initial setup. Most important - choose "home" instead of "shop" when asked during initial setup. Resetting - keep up arrow pressed and switch of TV. Keep the button pressed when TV automatically switch back on. This will reset TV to factory defaults.

You should be able to use the input/source function on your remote to select which signal sources you want the TV to display, find out which input on the TV you have the cable box hook it up to then just select that input. Do you still have the user manual?