Sony Bravia KDL-46VL160 Turns off after a few seconds

[gingerbreadman]

I just picked up a 46" Sony Bravia KDL-46VL160. It turns on for a few seconds,
the backlight turns on but there is no actual picture.
When the set turns itself off the red light blinks 14 times.

I'm just getting started troubleshooting this one, I've read it could be a backlight tube,
maybe a bad transformer or a TCON issue.
What are your thoughts to check first?

[budm]

Re: Sony Bravia KDL-46VL160 Turns off after a few seconds

TCON or HFR (12X 14X)
A communication error has occured from the TCON board. If the LVDS cable is not defective or loose both conditions require the replacement of the LCD panel.
14x = HIGH FRAME RATE ERROR
12x = TCON ERROR

At least check the fuse on the T-CON board.

http://elektrotanya.com/?q=showresul...oria=&kat2=all
May be close enough to your model.

[gingerbreadman]

Re: Sony Bravia KDL-46VL160 Turns off after a few seconds

One more thing I should mention. When the power cord is plugged in it automatically turns itself on, the backlight comes on and then it turns itself off.

[gingerbreadman]

Re: Sony Bravia KDL-46VL160 Turns off after a few seconds

I unplugged the LVDS cable going into the T-CON board and then the backlight stays on and the tv doesn't shut itself off.

[gingerbreadman]

Re: Sony Bravia KDL-46VL160 Turns off after a few seconds

Is there a bulb/tube that can be replaced? Or is the whole lcd panel just bad?

[budm]

Re: Sony Bravia KDL-46VL160 Turns off after a few seconds

Since the backlights stay on, then it is not inverter or lamps problem. The error already indicate the problem with the T-CON board.

[rustytierod]

Re: Sony Bravia KDL-46VL160 Turns off after a few seconds

I am having similar problem with 46v5100. TV does not turn itself on when plugged in, still turns off and backlight still comes on for 2 seconds when LVDS cable is disconnected with no disturbance in image.

No error blinks. TV still turns on for same amount of time and clicks off with only main and power connected.