Yes
Yes
No
Replace the SU
board.
Yes
No
Yes
No
Replace the SD, and SU
board.
Replace the SD board.
Replace the SC board.
No
Replace the A board.
Reconnect the SD board only.
(See instructions on slide 15).
Plug in the TV and turn it on.
Physically disconnect the SU board and the
SD board. (See instructions on slide 15).
Plug in the TV and turn it on.
With the SU board and the SD board
still disconnected, remove connectors
SC2 and SC20 from the SC board
Plug in the TV and turn it on.
Disconnect the SD board and
reconnect the SU board. (See
instructions on slide 15). Plug
in the TV and turn it on.
Does the
TV shut down
and the power
LED
blink 7 times?
Does the
TV shut down
and the power
LED
blink 7 times?
Does the
TV shut down
and the power
LED
blink 7 times?
Does the
TV shut down
and the power
LED
blink 7 times?
16
LED blinks 7 times (TH-42PX80U)
Trouble Mode
SC Floating voltage SOS
Defective Board (possibility)
SC, SU, SD, P board (SC,SU,SD>P)
Make sure the connectors P2/SC2, SC20/D20
are not loose and are seated properly.