Sony bravia kdl46w3000 is stuck in standby mode

Fault with its main 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.

Remove all speaker wires and try again. If it unlocks one or more speakers are bad. If not service required for amp. Good luck.

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).

"Bravia Screen". Not sure what you mean. Is it in maintenance mode?

Option 1.. With the tv plugged in and the power OFF (this is called standby mode) take your remote (make sure it has fresh batteries) follow this sequence on the remote. You have to press the buttons within a second of each other in this order:

DISPLAY - 5 - VOLUME + TV POWER.

When the screen comes on hit JUMP right away and it puts you into a little screen for maintenance. Simply turn off the television to exit maintenance mode.

2. If your remote is bad, ie, new batteries don't fix it, might suggest a new one.

3. If you can't get a new remote, power on the television using the power button and then hit the menu button. Use the up and down keys to see if you are stuck in some weird screen or something.

4. If you are connecting something to the television (like a dvd, a playstation, computer, etc) try unplugging everything and test each port individually, using the side buttons as described in part 3 to change the input mode to the port you are using.

Hope this helps

Hello
Check its mother board for any solder loose or refulator IC failure. You must have through knoledge in electronics to follow up. If you have, inform me.
This is the pircture of the motherbard to your tV. To do any sork to this board, you must have knoledge to follow its schematic diagram, It is a skilled work indeed.

the picture comes for 2 secs on the screen and immediately goes to stand by and red LED Sony bravia standby mode blinks 8 times

Please see the troubleshooting chart, BU1 board part # A-1268-869-A, cost approx $230.

https://www.encompassparts.com/webwiz/wwiz.asp?wwizmstr=WEB.SEE&partnumber=7564008

When I power my Sony lcd 42 inch the red light blinks then I push the power button the green standbye light just continues to blink, any suggestions

Hi,

There is a power fault with one of the PCB's inside, contact Sony if you are still in warranty, if not contact a Sony service center as it will need an engineer to open it up to repair it.

Thanks