Sony BRAVIA - Recent Questions, Troubleshooting & Support - Page 7

Fault in 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/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

There is no way to really check a T con without a lot of test equipment, only thing that is serviceable on that board is the small fuse that is by the LVDS connector...

Your TV has 2 settings that could potentially affect this volume. One, verify the Audio Out option is set to Fixed. This allows your surround to control the volume. Two, make sure Volume Offset for each input could be set low, verify that isn't the case. Hope this helps.

See if remote has a ratio or zoom button on it.

Sounds like main board issues

I would bet on it being a panel issue, you can try a new t-con but I don't think its going to correct it, may be time to buy a new set

You have a problem with power supply take it to a television engineer

Sorry to say but it sounds like your power supply is bad, although it is possible it is some other components in the TV because turning it off allows all diodes etc to power down completely. Unfortunately after a bit it happens again which leads me to believe again power trouble.

check to be sure your remote is sending IR signal, with a smart phone camera hold remote IR eye in front of camera and click any buttons on remote, you should see a light coming from IR eye. If no light emitting, remote needs to be replaced.

Is the tv new or has it started to do this recently ?
Try to eliminate the obvious.
Does the remote continue to flash when you release all of the buttons? Is it a stuck button ?

If you cant' see the remote output, try using your smartphone camera. Most phone cameras will capture infrared light ( invisible to the eye). Aim the remote at the camera and see if you can see the flashing light, which is data being sent to the tv. When you release the buttons does the flashing stop ? If so remote is ok

Next turn all of the lights off in the room with the tv. Also turn off any lights that may shine in from other rooms. Try using the remote

If your tv functions normally, you may be getting interference from your lighting. Some LED and CFC fluorescent lights flicker at a rate which may be close to the remote IR output frequency.

If turning off the lights fixes the issue, turn on each light to isolate the issue. Replace the bulbs with ones from different manufacturers.

Let me know

Have your TV check at Sony store.

Go into menu on the tv and look for start up setting and look for tv ratio and change it. The cables should be right. The wii will not change aspect if the tv is not compatable

If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size. Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts