Sony Bravia KDL 40LX900 red picture

[Nikita90]

Hello, guys!

I have TV Sony Bravia KDL 40LX900 which shows picture in red - look at attachments. Please give some advise how to resolve this problem? Much appreciate!

[Diah]

Re: Sony Bravia KDL 40LX900 red picture

put the tv in standby then press with RC display --- 5 ---- volume (- ) ---- power
it will call self dignose screen.. upload the photo of the screen.

[Unspun01]

Re: Sony Bravia KDL 40LX900 red picture

Hi - I had similar red push problem on an LG TV a few years ago. The problem was in my LVDS differential signal path.

The LVDS cable was ok. But measurements of small components in each differential signal pair on the mainboard indicated that a small component (a resistor I think) showed that one signal line had a very different value than all of the others. I replaced this part and the TV worked perfectly. it was either a 0 ohm or 100 ohm smd resistor. Sometimes the part is not a discrete single component, but has both traces in the pair going into it - one side of the part could be good, and one could be bad. I think they are ESD TVS Diodes

On my TV, the component was located on the mainboard on a circuit trace between the main processor and the connector where the LVDS cable plugs in.

You may also want to check the LVDS cable by wiggling it to see if there is any change (may be a bad cable), or check if LVDS cable is making good connection at each end, or check for oxidation on the pins of the connections.