I have sony Bravia KLV -32V300A suddenly shut-off while I am watching power indicator went off and standby red light blinking 5 times then after 2 seconds off then red light blinks again 5 times and so on.no sound either

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
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You have a bad main TV broad. Here's a link with more info; https://www.youtube.com/watch?v=0KGysXbxnaU

KLV-24 EX430
RM-GA022
Troubleshooting
3-3. Standby Led Blinking
3-3-1. 2-times Led blinking
2 times Blinking
Check DC voltage at
JL6023
Is it 18V 19 5V?
Yes Change
- 19.5V? B*board
No
Take out adaptor
and test at adaptor Yes
output is it 18V - 19.5V?

Change
B*board
No
Change
adaptor this is flow chart for 2 blink

5 blinks indicates a panel issue. check all cabling to panel, if OK, may be your panel, & replace TV

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Magazine" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Magazine" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

A short circuit with its main board component, can make 8 blinks of standby/power light. These blinks [flashes] are fault indication. You can get an idea about the faulty stage circuit inside the TV, by the number of these blinks. Count it carefully, by switching it ON and OFF, more than 2 times at least, so that, you can make sure about the number of these blinks. If you wish to get more details, check the site linked here. Surf the site in "MOSAIC" view.
http://electronicshelponline.blogspot.com/

Here is a link to the service manual--

http://www.scribd.com/doc/46056922/KLV-23S200A-and-Other

Page 11 explains the error codes--unless you are a tech with a meter etc it will be a shop repair.

A lot of good info including taking set apart correctly.

"abnormal power"

SD TECH

3 blinks ussally is an indication of a loose lamp door

My TV (Sony Bravia LCD KLV-32S310A) goes of after 20 seconds when it is switched on. The standby indicator then flashes (red) five (5) times then there is a two seconds break followed by another six flashes then two seconds break etc. What might have caaused this and what should i do?