Sony Bravia KDL-xbr4 Replaced TCON board All worked great for a week Had an issue w/ HDMI cable at the box fixed it and now tv comes and the goes off to 6 blinking red lights

SOURCE: How do I hook up the HDMI cables to a cable box

how do i hook up hdmi cables to cable Sony KDL Bravia LCD HDTV

SOURCE: TV Goes to Stand-by mode

I don't have a solution, but I have the exact same problem

SOURCE: sony bravia kdl-52w3000, turn tv on, no picture or

Most likely this is caused by a defective main board. Changing the main board will fix the issue about 95% of the time.

To be absolutely sure, the voltages need to be checked on the power supply. If they are not the values listed in the service manual, then you should replace the power supply instead (accounts for the other 5% of the time).

SOURCE: sony kdl-40v5100 has handshake problem

1.This issue sounds as though the TV connection circuit has an issue.
2. You have changed the DVR and the HDMI cables and you still have an issue with the video (pink screen) indicates a video circuit issue ( improper voltage or current) at the video section of the circuit.
3. This will require some troubleshooting by a qualified tech.
4. To make sure, try connecting another properly working LCD TV to the cable box or DVR an check.If you get a picture and sound properly it is the TV.
5. Usually a cable box is QA'd (quality assured) by the company and will not be sent unless tested 1st

SOURCE: KDL-40V5100 TV HDMI Issue

I have the same problem did you ever find a solution