20 Most Recent Sony Bravia KDL-46Z4100 46 in. LCD HDTV Questions & Answers

for Bravia's.. To turn off the demo mode, press and hold the MENU button on the TV for more than 10 seconds. The message Demo mode: Off will appear on the screen. Let me know if this helps.

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main 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. 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. Search the site by type in the "brand name" to 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.

The problem is called pixel re-stain, it usually happens on some old LCD panels, in your case, the TV is not worth to fix.

The TCON Board or the LCD panel is faulty. Can confirm By replacing the TCON board. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

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/

It's worth it for a project to learn and save some money, but flat screens are becoming cheaper and cheaper everyday.
If you need further help, I’m available over the phone at https://www.6ya.com/expert/gregg_27a4d257e54e7920

solarized?

check cable, if its using an HDMI, replace it: if component RGB cable, reseat or replace.

Check and replace its tuner. 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/

T'Con board fault. Replace it. 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/ Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent. Search the site by type in the brand name to your device, in the "Search box at the top right of the display window".

Hi Aarom, According to Sony literature 14 blinks indicate a panel problem. Please have your TV checked by some good TV Tech.

Tries tv unplug,replug it back about an hour later for the tv for a resetting back to the factory setting.Go into the tv menu go to Audio Setting go down to do a resetting back to factory setting.These steps will help the tv to get the tv audio back.

See if this helps you. There are connection diagrams https://docs.sony.com/release/KDL40Z4100_qs.pdf