Chosen Solution
Power LED when switching ON, flashes continuously GREEN for about 5 seconds and then steady GREEN LED - and no display on the screen - blank /“dead”. Under normal conditions, the GREEN LED will flash for about 3 seconds then “flip-flop” to RED status, i.e: TV is now in “standby” mode.
Locate the DG Board (Audio) and re-solder the DG Board connector pins of both power supply connector from the main Power Supply Board. A “dry joint” was not allowing theDG board to fully ‘diagnose and reset’ on Power On… ( In my case the DG board was the TNPA4311 )
