Panasonic TC-L42D2 Technical Manual page 69

<Symptom>Upper or Lower Defect
Abnormality means
No Picture, Picture noise, abnormal picture,
Full Horizontal line etc.
<NG Area>
Panel Drive
LCD panel
<Defective parts>
Panel (Panel drive)
Relation to panel drive location,
1/3 or 2/3 area will be troubled.
Picture Defect (2)
Panel Drive
Panel
Drive
Panel
Drive
Panel
Drive
Ａ
Tuner
Input
Terminal
Signal
Processor
<Actual Symptom>
Symptom: Upper trouble
Slide # 69