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Sony BRAVIA KDL-40XBR3 40 in. LCD HDTV - Page 5 Questions & Answers
I woke up and my Sony Bravia was flashing shades of blue and grey and occasional different color. I unplugged TV for ten seconds I also tried the suggestion below but still no luck
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. 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/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.
How do I fix a 4flash red light error
Based on the information you have provided for your model and the issue you are currently having with the red light flashing 4 times, we would like for you to try the steps available below:
- Unplug the television power cord from the electrical outlet.
- Disconnect all devices from the TV.
- Let the television remain without power for 2 minutes.
- Plug the power cord back into the electrical outlet.*
- Turn your television on.
* If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
Copied from someone else's post. I agree with the steps this person posted.
If this does not work call the manufacturer. You could see how much it would be to fix vs. the cost of buying a new one.
Tv won't turn on
Fault to the main power supply regulator section. 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://electro-medical.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.
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