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; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
SOURCE: TV quits working, screen goes black and red light next to power green light flashes 4 quick flashes.
The Sony diagnostic routine for 4 blinks indicates it to be a vertical deflection problem.
Did you see a solid horizontal line in the center of the screen prior to it going out? If so, that is a tell tale sign for vertical problems.
basic sony reset below
The STANDBY light will flash if the television detects an issue within the television. Some of these issues can be resolved simply by following the steps below to reset the television.
If the issue is still unresolved after following all of the troubleshooting steps, service may be required. Please note the number of times the STANDBY light flashes and relay that information to the service center
SOURCE: Tv cuts off and green light flashes
If your set was manufactured around July 2005, you may need a firmware upgrade to solve this issue. On the Sony website you can enter your model # and serial # to see if you TV is affected. If so, it is easy to have done and may be free from Sony. It sounds like the issue they described in the writeup on the required formware update. I had mine done within few months of when i bought it (purchased in Dec 2005) and it has been working flawlessly since.
Good luck!
Donnieboy999
SOURCE: my TV just turned off and the power light flashes
thought I would post this here for everyone.
1 blink STV 5v sense DG Board
2 blinks 15v SOS D Board
3 blinks 3.3v SOS D Board
4 blinks Power SOS P Board
5 blinks 5v SOS D Board
6 blinks Driver SOS 1 SU / SD / SC Boards
(SC energy recovery circuit)
7 blinks Driver SOS 2 SU / SD / SS Boards
(SC floating voltage area)
8 blinks Driver SOS 3 SS Board
(SS energy recovery circuit)
9 blinks Panel Config. SOS
10 blinks Sub 5v SOS / Main 3v SOS DG Board
DTV 9v SOS / Tuner Power SOS
11 blinks Fan SOS PB Board
12 blinks Sound SOS H Board
13 blinks Communication error DG Board
with IC8001 (Pesks Lite 2)
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Alright. So I just need to order the main circuit board where the main power come in. If I am understanding what you are saying. Thanks
Replaced the board and tv is still doing the same thing. Stays on for about 5 minutes and then shuts off. The power light just flashes continuously. What else could it be? Thanks
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