Haier HLC19W-A Servise Manual page 20

4.2 PC
Picture not in center
Auto adjust
Missing color
Check U5 RGB input
Y N
Reset
Check R,G,B
circuit
PC
Picture dithering
Check VS,HS signal
Y
Check OSD setting
Reset
No signal
N
Check
Check
VS.HS
VS.HS
i i