3
TROUBLE SHOOTING FLOW CHART (1)
TV / AV no picture Check U7,U15
No picture Back to default setting
All Source Chack U7,U15
Chect Panel
All Source Check LVDS wire
Color NG Check U7,U15
Back to default setting
YCBCR Check U15 out/put
Check signal source
All Source Check Front Panel 
Video issue Line in Picture
Only one source Check Main Board ( U7,U15 )
Check Main Board
All Source Check Main Board ( U7,U15 )
Noise Check Main Board
TV Check signal source
 Select TV source on OSD
Superimposed image All Source Check Main Board ( U7.U15 )