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?
Yes
It displays.
Failure of A-Board
No
It is still abnormal.
Yes
It is abnormal.
Failure of LCD Panel
(rarely failure of A-Board)
Yes
It is abnormal.
Failure of A-Board
or
Rarely LCD Panel
Yes
It is blinking.
Yes
It is green lighting.
Failure of A-Board
No
- The whole is not abnormal.
- It is not blinking.
No
This is not an abnormality of part
Vertical line Horizontal line Color
Vertical bar Horizontal bar unevenness
Vertical line/ An image is
Vertical bar not displayed
LED blinking
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