VGA RGB .YPbPr. HDMI,S-VIDEO,CVBS
Low color,
color cast
HDMI,S-VIDEO
Have no signal
CVBS has no signal
System settings is wrong
and reset it
1.Check the R.G.B circuit
2.Check U14 circuit
1. HDMI terminal pad
contact is badly
2 .System DDC settings
is wrong and reset it
3.U14 damage
check the circuit
between
U14,AV1
and AV2
whether R.G.B input signal
of U14 is normal?
Y
N
九
九
九
九、
、
、
、Function Trouble
Function Trouble
Function Trouble
Function Trouble（
（
（
（YPbPr
YPbPr
YPbPr
YPbPr、
、
、
、HDMI
HDMI
HDMI
HDMI）
）
）
）
whether AV1 or AV2
has signal input?
Check the wire from CVBS
terminal to signal source
whether the 18
th
pin
of U14 has input?
Y
N
the soft of U14 is
not normal
Or U14damage
Y
N
