Why does it have six red blinking lights?

If one of the led lights in back light strip fails, the power supply senses the current change and shuts down. The LED strips have to be tested to see which one failed.

why not get the service manual on it, and not guess.
?
this is LED TV and any board inside scan fail even the LED bank.
lacking the real manual how can you even check voltages?
ask sony for the manual yet?

Replace the jack wires going to the LED strips. Or look for the one bad jack wire going to the LED's and fix it. Use a volt meter on ohms to find the bad wire.

You may have a back lights problem.

To test the back lights, you need to disconnect the cable between the main power supply & the main board, apply the AC power to the power supply, if the back lights are not light up, or blinks, the back light are defective.

It could be a defective LED strip you bought. You may swab the top & center strip to check it out.

Have you checked your power supply voltages?...if so what are they?

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.
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.

...and?

Hi Kindly let me know how many times the red light blinks
Condition Code Service Actions Processor thermal protection activated. Power LED blinks red twice, once a second, followed by a two second pause.

1. Make sure the computer air vents are not blocked and that the cooling fan is running.
2. Open the hood, press the power button, and see if the processor fan spins. If the fan is not spinning, make sure the fan cable is plugged into the cable header on the system board, and that the fan is properly installed and seated.
3. If the fan is plugged in and seated properly, but is still not spinning, replace the processor fan.
4. Reseat the processor heatsink and make sure the fan assembly is attached to the heatsink properly.

Processor is not installed. Power LED blinks red three times, once a second, followed by a two second pause.
NOTE: This condition indicates a missing or improperly installed processor, not a defective one.

Make sure there is a processor in the system. Reseat the processor and verify that it is installed properly. Power failure (power supply is overloaded) Power LED blinks red four times, once a second, followed by a two second pause.

1. Check the voltage selector, located on the rear of the power supply, is set to the correct voltage (the correct setting depends on the region).
2. Open the hood and make sure the 4-wire power supply cable is fully connected to the power connector on the system board.
3. Check if a device is causing the problem by removing all attached devices (such as disk drives and expansion cards), then power on the system. If the system enters POST, power off and replace one device at a time, repeating the procedure until the system power failure reoccurs. Replace the device that caused the failure, then replace each of the other devices and confirm that they are functioning properly.
4. If you cannot isolate the failure to a specific device in the previous step, replace the power supply. **
5. Replace the system board.*

Pre-video memory error. Power LED blinks red five times, once a second, followed by a two second pause, and five simultaneous beeps are sounded

1. Reseat the DIMMs in the memory slots on the system board, then power on the system.
2. Replace the DIMMs one at a time to isolate the faulty module.
3. Replace 3rd-party memory with HP memory.
4. Replace the system board.*

Pre-video graphics error. Power LED blinks red six times, once every second, followed by a two second pause, and six simultaneous beeps are sounded. For systems with a graphic card:

1. Reseat the graphics card and then power on the system.
2. Replace the graphics card.
3. Replace the system board.*

For systems with integrated (on-board) graphics, replace the system board. PCA (system board) failure. ROM detected failure prior to video. Power LED blinks red seven times, once a second, followed by a two second pause, and seven simultaneous beeps are sounded. Replace the system board. Invalid ROM based on bad checksum Power LED blinks red eight times, once a second, followed by a two second pause, and eight simultaneous beeps are sounded.

1. Reflash the ROM using a ROMPaq diskette.
2. Replace the system board.*

System does not power on. No beeps or blinks since the system is not functioning. Press and hold the power button for less than four seconds. Perform the following steps depending on whether the hard drive LED turns green.

If the hard drive LED turns green, then:

1. Make sure the voltage selector (which is located on the back of the power supply) is set to the correct voltage for your region.
2. Remove the expansion cards one at a time until the 3.3V auxiliary light on the system board turns on. If removing a card turns the light on, replace the card and then see if the system works.
3. Replace the system board.*

If the hard drive LED does not turn green, then:

1. Make sure the computer is plugged into a functioning AC power outlet.
2. Open the hood and make sure the power button is securely fastened in the power harness and that the harness is connected properly to the power connector on the system board. In other words, make sure that the power button is making contact with the power circuit.
3. Make sure the power supply cables are connected properly to the power connectors on the system board.
4. Check to see if the 3.3V auxiliary light on the system board is not turned on, replace the power supply. **
5. Replace the system board.*

Hi, this is main board failure and you will need to replace this vital board. you power board is fine but, it is unable to send a proper current through the main mother board due to the damage at hand.