I ve problem in elcot tamilnadu free tv screen . The bottom screen is very small when compare with upper screen . We can adjust the screen horizental n vertical size . When press menu n follow by some 4 no . Kindly send if u know means .

SOURCE: i have lost channels 5,itv 3,and itv 4,and do not

All Freeview channels need re-tuned after 30th September.
To re-tune your Sony TV...

1.Press Menu button then go to settings...

2.Scroll down the menu icons until you get to 'Digital Set-up'

3.Press enter/centre key next to direction arrows

4. Select spanner icon and digital audio tuning.

5. You will then be asked if you want to start digital audio tuning.

6. Press enter/centre button....and thats it!.... TV will automatically re-tune.

SOURCE: JVC AV2649S Picture Too Large

you can see the diagnostic menu in jvc as you press both at the same the display and the picture mode buttons

SOURCE: on-screen menu Zenith Tv Model Z20A21D

it might be due to your cable operator giving important message. please reset tunning once or auto tune. give service code for opening menu. if you do notremember give me system control ic no. so i can send you thanks

SOURCE: Cannot make horizontal and vertical size and position adjustments

OK...I paid a whole $50 for an Apex AT2702 that had [undisclosed] vertical zoom, horizontal shift, vertical shift and width issues. Before I raised hell for the person who sold it to me, I decided to first exhaust all alternative solutions.

I found that in order to tweak these settings, you have to be in service mode and must have a service manual which I can email upon request.

BE SURE TO DOCUMENT YOUR CURRENT SETTINGS SINCE ANYTHING YOU CHANGE WILL AFFECT YOUR SET'S PERFORMANCE !!!

1-Reduce your tv volume to 0
2-press the MUTE button on your original tv remote [you'll see "Mute" in red on the screen]
3-AT THE SAME TIME, press MUTE on the same remote and MENU on the tv controls.
This set your tv into service mode [there will be a red "S" at the top-center of your screen.

You'll need the table in the service manual page 47 where there are V-SHIFT, H-SHIFT, V-ZOOM, E/W WIDE default values that will need to be changed. WATCH YOUR SCREEN as you change the values to ensure you don't over do it.

If you have news ticker and sports scores issues, you'll want to be tuned to CNN, FOX, ESPN or whatever to see how your changes are applied.
If you have tv guide problems then tune to that channel or press info and see what happens when you make the changes.

BE SURE TO DOCUMENT YOUR CURRENT SETTINGS SINCE ANYTHING YOU CHANGE WILL AFFECT YOUR SET'S PERFORMANCE.

This has worked for my set and you may attempt this solution on yours at your own risk.
I'm no longer pissed off that I got a bogus tv because it now works just fine and I can see everything!

Good Luck!