LC-22DC30M
6 – 3
With <Component> signal input
No video onscreen (3)
No external input video onscreen <INPUT 3>
Is INPUT 3 selected on the input select menu screen?
NO
Select INPUT 3 on the input select menu screen to pick up the
right input signal.
YES
Are there the Y, Pb and Pr signal inputs at pins (34), (36) and
(38) of IC3301 respectively?
NO
Check the line between pins (19)/(17)/(15) of J502 and pins (34)/
(36)/(38) of IC3301.
YES
Is input waveform of IC3301 normal?
Y=(36) pin, Pb=(34) pin, Pr=(38) pin
NO
Check IC3301 and its peripheral circuits.
YES
Check LVDS cable, LCD controller (incl. panel) and their periph-
eral circuits.
With <HDMI> signal input
No video onscreen (4)
No external input video onscreen <INPUT 1>.
Is INPUT 1 selected on the menu screen?
NO
Select INPUT 1 on the input select menu screen to pick up the
right signal input.
YES
Are there signal outputs from SC1501 to IC3301?
NO
Check peripheral circuits between SC1501 and IC3301.
YES
Are there signal outputs of IC3301?
NO
Check IC3301 and its peripheral circuits.
YES
Check LVDS cable, LCD controller (incl. panel) and their periph-
eral circuits.
