Function t r ouble
（
S_VEDIO
）
S_VEDIO no picture
S_VEDIO no sound
Check if the CN16
have Y/C signal?
Refer to“ 7 ”
Check peripheral video
N
Y
Check if the pin23 24
equipment
、
of U12 has signal?
N
Y
Check th circuit between
1.Check the power
supply of the U12
e c
the CN16 and U12
o t
2. U12 is damaged
3. Updata the software
8
.
MANI
BOARD
FAULT
JUDGMENT
11
