My sony NSX40GT1 has blinking (twice) led only! ..no power on

1. On the remote control, press TV once.
2. Press and hold SET until the LED blinks twice, then release SET.
3. Enter 9 - 9 - 1.The LED will blink twice.
4. Aim the remote control at the the TV and slowly alternate between pressing POWER and TV. Stop when the TV turns off.
5. To lock in the code, press and hold SET until the LED blinks twice, then release SET.

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. http://electronicshelponline.blogspot.com/

What is t he question?

How many times this standby/power light blinks at one time switch ON? Count it carefully. These blinks are fault indication, and known as blinking codes. From the number of blinks occur at one time switch ON; you can get an idea about the faulty circuit stage inside the TV. This will make repair easy. For more information, check the link http://electronicshelponline.blogspot.com/

Normally yes. Blinking twice is power protection trip. Look first for open resistor, broken fuses (and short circuits or broken transistors / ICS if thats the case).

You may need a signal coverter unit available at Best Buys and the like.

What does it do if you unhook the flat cables going from the tcon to the panel, does the blinking go away and do you have sound then?

The code for your remote is "0000" Press "TV" and then "Set" while holding "TV" wait for the LED to blink twice then release both buttons enter code "0000" the LED will blink twice again to confirm. Press "power" to test. That's the only Sony code for your remote. Hope this helps

It's an error code. Check your manual under troubleshooting or call a Sony service shop with the model number and flash code.

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