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If it blinks continually without stopping its due to 4 bad 1000uf @ 35V capacitors on the DM board and they wiill need to be replaced as thats what makes the light continually blink. If you need more info please let me know.
This model is equipped with a self-diagnosis feature to help with
diagnosis of shutdown problems. To activate this turn the unit on let
it shutdown then press the input/device and menu buttons on the front
panel simultaneously and hold them in for 5 seconds after 5 seconds the
power LED on the front panel will blink a two digit sequence. This will
be one set of blinks a short pause then another set of blinks, this
will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high
voltage or beam current) 2 - 2 = Short protect (short protect monitors
low voltage supplies) 2 - 3 = Deflection protect (this could be loss of
vertical or horizontal deflection) 2 - 4 = Vertical protect (usually
loss of vertical from the source)
The constant blinking green light means that the TV is not booting up. This is a common problem on this set.You need to remove the shield from the DM board (standing upright on the left where the DTV RF connector is)and inside you will see the four leaky capacitors (1000 MFD 16 VOLT)replace them,plug the TV in and wait 70 seconds for the blinking light to stop,then turn on the TV.The hard part will be removing the board from the TV(lots of screws and connectors,takes time)