TCL L55S4610F

33
Abnormal Picture
Abnormal picture
in some of source
To check which source
has abnormal picture
Abnormal picture
in all source
Check the relevant
signal source
circuit.
Check peripheral
components of U401
U401
Problem
Check the circuit
between U401 to
panel
Check the LVDS
connector and T-con
board and panel.
Check the row-resistor,
cap. and copper of
circuit is OK?
Replace
U401
TV, AV, YPbPr,
HDMI, VGA
Trouble Shooting