5. The display is incomplete or exceptional:
Y
N
Y
Y
N
N
Y
N
The display
incomplete or
exceptional
Change the 9
cors wire.
The problem can be
solved.
The 9 cors wire is
damaged.
Change the display
board.
The problem can be
solved.
The problem is in
display board.
Check if all the pins
were welded bad.
Reweld them.
The problem is in
main board.
Change the LCD .
The problem can be
solved.
The LCD was
damaged.
The LCD driver module
was damaged.
Replace HT1622.
