Slide #48
Yes
Replace the 
SU, SD, and 
SC boards
Follow the SU/SD boards isolation 
procedure shown on slides 18, 19, and 
20. Plug in the TV and press the power 
switch
No
Replace the SU 
and the SD 
boards.
Does the 
TV shut down 
and the power 
LED
blink 7 times? 
A
Start Here
If the power LED continues to blink even after the TV is unplugged, press and hold the power 
switch on the TV for a few seconds until the LED turns off.
7 Blinks Error Code (3 of 4)