Panasonic Viera TC-P42X1, Revised Troubleshooting Handbook

Page: 49 / 71

Slide #49
D
Yes
Yes
Replace the
A board.
No
With the SU board and the SD board
still disconnected, remove connector
SC20 from the SC board. Plug in the
TV and turn it on.
Did the
number of
blinks
change?
Follow the SU/SD boards isolation
procedure shown on slides 18, 19, and
20. Plug in the TV and press the power
switch
Any other number of blinks besides 10 and 6.
6 times
10 times
Replace the
SC board.
Does the
TV shut down
and the power
LED
blink 7 times?
7 times
Start Here
No
Replace the SU
and the SD
boards.
Replace the
SC and the A
boards.
Unplug the TV and reconnect connector SC20 and the SU and
SD boards. Measure the resistance between pin 1 of P2/SC2
or P11/SS11 (Vsus) and ground.
Is there
a short
circuit?
Yes No
Unplug SS11 and measure the
resistance between pin 1 of
SC2/P2 (Vsus) and ground.
Is there
a short
circuit?
Yes
No
Replace the SS
And SC boards
Replace the SC
and A boards
Replace the P
and SC boards
Caution: 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.
Warning: Disconnect AC Power prior to
making any disconnection or connection.
7 Blinks Error Code (4 of 4)
Replace the SC board.
LED stays ON
TC-P42X1