Panasonic TC-P42X1 Revised Troubleshooting Handbook page 70

Picture Problem Troubleshooting
Start
Where is
the symptom
displayed?
Upper or Lower half
(from front view)
Left or Right half
(from front view)
Some part of the screen
Upper half
SU Board (or A, or SC)
Lower half
SD Board (or A, or SC)
Both area
SC Board (or A)
Right half
A Board (or C1, or Panel)
Left half
A Board (or C2, or Panel)
*Note :Panel gas leakage
Because of a very small crack in the
panel, gas leakage will start.
In this picture, gas leakage started at
the left top corner.
Finally, gas leakage will lead to the
symptom "No picture with buzz
noise".
Slide #70