Just bought JVC lt47x788 and did not receive owner's manual and do not know how to do the initail setup. When we turn on the tv it says no program or weak signal.

Back-light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/

Try this
Ensure that a cartridge is not inserted
Hold down the Hint (?) button while turning the unit on. Continue to hold the Hint button down until the LEAPSTER menu appears.When the LEAPSTER menu screen appears, press the A button.Touch each of the crosshairs that appear with the stylus, Restart unit

You may download a copy of the manual at http://books.jvc.com/Download/489553441/GET0642-001A.pdf

These are the steps on how to program your Universal Remote Control to your JVC TV even without the list of code.

1. Manually turn ON your TV.
2. Press and "HOLD" CODE SEARCH
3. Press and release the TV button you want to set up
4. Release CODE SEARCH.
5. Press OFF/ON repeatedly until the TV turns off (you may have to press up to 100 times at a rate of once per second).
6. Once the TV turns off, press and release ENTER.
7. With the TV on, press any other button. If the TV responds, no further programming is required. If the TV does not respond, repeat steps 1-6.

Hi mfaille
I`m going to help you with your setup but first;
Which connection are you using from the sat receiver to the tv?
Coax / standard rg6 cable?
Did you try to manually add(in the menu/tuner setup/find channel/add) the channel you need ?

Here are all the possible codes that will operate JVC TV's
JVC 0653 0053 0036 0154 0190 0371 0508 0606 0683 0192 0193 0218 0418 0093 1923

optical connection in tv is only input optical connection in receiver is only input will not work.need to connect rca jacks to tv's audio out jacks behind tv to any available input in receiver

1050 1071 1199 1259 1280 1315

Press and hold TV until the LCD blinks then try each code and in between press standby, when the TV turns off that will be the right code. May work for you, if not post back

kind regards

Make sure you have audio out from TV plugged into receiver. I have both Logitech 520 and JVC. It could also be in your setup of the remote.

Bad tuner = verify part # from back of set to get part #...
Let me know..........................T.