Diagnosis Flow Chart - Panasonic TH-65LFB70E Service Manual

Diagnosis flow chart

Is a test pattern
displayed normally?
Is a part abnormal
even in test pattern?
-Is the whole abnormal
even in a test pattern?
or
-A test pattern is not displayed
but is the state of LED blink of
red and orange?
A test pattern is not
displayed but is the state
of LED green lighting?
It displays.
No
It is still abnormal.
It is abnormal.
Vertical line
Vertical bar
No
This is not an abnormality of part
It is abnormal.
It is blinking.
Vertical line/ An image is
Vertical bar not displayed
No
- The whole is not abnormal.
- It is not blinking.
It is green lighting.
Yes
Failure of A-Board
Yes
Failure of LCD Panel
(rarely failure of A-Board)
Horizontal line
Horizontal bar unevenness
Yes
Failure of A-Board
or
Rarely LCD Panel
Yes
LED blinking
Yes
Failure of A-Board
21
Color