Display
trouble
MANI
BOARD
FAULT
JUDGMENT
11
Repair
th e
circ uit
of
Q9
Black
screen
Exceptio nal
screen
Check
the
BLON
Back
light
is
lightin g
Check
the
VCC
o f
p a n e l
Check
the
line
of
panel
Soft
is
corre ct
Check
LVDS
signal
line
Check
the
timing
o f
p o w e r
The
panel
is
correct
R e
-
we l d i n g
U10
(
CT622E
)
OK
N
Y
Y
Y
Y
Change
the
line
Upload
software
Change
panel
OK
Re
-
weld in g
Pin 188
–
Pin213
of
U10
(
CT622E
)
N
OK
Channel
panel
N
Y
Displ ay
trou bl e
OK
Y
Upload
software
Check
the
panel
connected
rig ht
VCC
of
panel
i s
c o r r e c t
C h e c k
t h e
jumper
of
CN5
Y
Y
N
N
N
N
N
