Panasonic TC-P42X1 Revised Troubleshooting Handbook page 52

8 Blinks Error Code (HD Models) Flowchart
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.
LIST OF MODELS: TC-P42X1
Verify that all the flex-cables between the panel and the SS/SS2 boards are properly seated and the connectors are
properly locked. Unplug the TV and disconnect connector SS23 from the SS board. Plug in the TV and turn it on
Unplug the TV and reconnect SS23. Use a volt-meter and place
the positive probe on the anode of D285 on the SS board (See
previous slide for location), while the negative probe is grounded.
Is there
approx. 7.2V
Yes
at the anode
of D285 on
the SS
board?
Replace
SS board
TC-P42C1
Yes
No
Replace
the panel
Note:
Before replacing the panel,
double check all the flex-cables between
the panel and the SS/SS2 boards.
Make sure they are properly seated and
that the connectors are properly locked.
TC-42PX14 TC-P50X1
CAUTION: The TV power should not be turned on while
SC2 is disconnected. This could damage the SS board.
Start Here
Does the
No
TV power
up and
stay on?
8 blinks
Unplug the TV and reconnect SS23. Remove the
ribbon cables from connector A31, A32, and A20
on the A board. Plug in the TV and turn it on
Yes
Replace
the A board
TC-P50C1
Did the
No
Yes
number of
blinks
change to 6
or 7 blinks?
Does the TV
power up and
stay on with the
SC LED on?
TC-50PX14
Replace
the A board
No
Replace
the P board
Slide #52