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normal
Check if the input AV
signal is normal
normal
Check TUNER1
normal
Check
工作
output signal
Check N102
Check N204
Check
N403
B
Call out double screen,set the two
screen's
signal
TV,confirm if the split screen is
normal
abnormal
Check
N102
output signal
normal
abnormal
N204
Check
N102
abnormal
Check N501
C
Check YPBPR
normal
yes
Check
N402
Check N403
25
source
to
abnormal
Check
if
double
signal is normal
normal
Check
TUNER
Check N702
normal
Check if every part's
connection is credibility
abnormal
Check if it can identify
VGA format
no
Check double screen TV
pictures are normal
normal
Check N501
input
screen
abnormal
Check VGA
signal
normal
abnormal
D
D
normal
D
abnormal
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