Flatscreen tv picture has shrunk to the upper left side of the screen

If you have already tried replacing the mainboard and it did not fix the issue, then the problem may not be related to the board. Here are a few other potential causes for a TV screen to shrink on both sides:

1. Picture settings: Check your TV's picture settings to ensure that the aspect ratio is set correctly. If the aspect ratio is set to "zoom" or "wide," it can cause the picture to appear smaller on both sides.
2. Overscan: Some TVs have a feature called "overscan" that can cause the edges of the picture to be cut off. Check your TV's settings to see if there is an overscan option, and if so, turn it off.
3. Defective panel: If neither of the above solutions works, it's possible that the issue is with the TV's panel itself. In this case, you may need to have the TV professionally serviced or replaced.

It's also worth noting that shrinking on both sides can sometimes be a normal behavior for certain types of content, such as older movies or TV shows that were originally shot in a different aspect ratio. In this case, the content may simply be displaying as intended.

Check the TV settings, make sure the picture in picture mode in not enabled.

Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Check and replace damaged component/s at its pincushion correction circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

If it is an LED LCD TV, the backlight inverter board should be troubleshooted. Contact any service technician.

there should be a ratio button on the remote if not its deffinitly in the main menu click on 16/9 wide screen you seem to have the veiw secound channel working on you set but were is the big picture of the current show? anyhow try that and let me know how you went


merry christmas

When I got my new LCD big screen, it had a black line across the entire width. It looked like the screen was pinched.

They claim that it can be repaired but that repair costs as much as a new tv.

My tv was replaced. Hopefully your warranty is still in place to get the unit replaced.

Take a flashlight and shine it on the screen when you have sound, look very close, can you see a video image? If so the inverter is probably bad.
Let me know and I will assist further.
lone99star

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/jason_77a19afa8d604dee

I had a Crummy Westinghouse TV that had a problem like this. JVC's are typically better built then a Westinghouse. My first educated guess - sounds like it's a voltage issue, most likely on the high voltage. Probably a capacitor on the power supply side of the motherboard or the capacitor in the flyback transformer. Just and educated guess.

No sir its not just an adjust ment or "twiddling" It sounds like its one of the same as your girlfriends set except a differant part such as a capacitor in the vertical curcuit, Output IC or even a defective resistor?? Good Luck