Unplug the TV and follow step 2 of the
previous slide.
Yes
No
Is there still a
short circuit?
Replace both
the SU and SD
boards
Yes
No
Does the TV
turn on and
stay on with
black screen?
Yes
No
Is there a
short circuit?
From previous page
Replace the SC
board
Yes
No
Does the TV
turn on and
stay on ?
(Black screen)
Replace both
the SU and SD
boards
Replace the SC,
SU, and SD
boards
SU/SD are Defective.
To find out if the SC board is also defective, follow
the procedure to on the next slide to isolate the SU
and SD boards. Plug in the TV and press the
power switch.
Replace the SC
board
Follow the procedure on
the next slide to isolate
the SU and SD boards.
Plug in the TV and press
the power switch.
Slide 21
