LC-52SB55U
6 – 2
No video (2)
COMPONENT: No external input video [INPUT-1] COMPONENT: No external input video [INPUT-2]
Is INPUT-1 selected on the input select menu screen?
Is the INPUT-SELECT for the input signal?
Is INPUT-2 selected on the input select menu screen?
Is the INPUT-SELECT for the input signal?
YES
NO
YES
NO
Select INPUT-1 on the input select menu screen
for the right input signal.
Select INPUT-2 on the input select menu screen for the
right input signal.
Does the INPUT-1 C1_PLUG detection function? Does the INPUT-2 C2_PLUG detection function?
Check the line between pin(2) of input termi-
nal(J508) and pin(AJ9) of IC8001(CPU).
Check the line between pin(2) of input terminal(J502) and
pin(AH10) of IC8001(CPU).
Are there the COMPONENT video signal inputs at pins(AM21)(Y)/
(AN21)(Pb) and (AL21)(Pr) of IC8001(CPU)?
Are there the COMPONENT video signal inputs at pins(AN22)(Y)/
(AP22)(Pb) and (AL22)(Pr) of IC8001(CPU)?
YES
NO
YES
NO
Check the line between the input terminals of J508
and IC8001.
J508 pin(3)(Y) pin(5)(Pb) pin(7)(Pr)
IC8001 pin(AM21) pin(AN21) pin(AL21)
Check the line between the input terminals of J502 and
IC8001.
J508 pin(3)(Y) pin(5)(Pb) pin(7)(Pr)
IC8001 pin(AN22) pin(AP22) pin(AL22)
Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of IC8001?
LVDS_TX_0_DATA0_P/N(C7/B7), LVDS_TX_0_DATA1_P/N(E7/D7), LVDS_TX_0_DATA2_P/N(C6/B6), LVDS_TX_0_DATA3_P/N(C5/B5),
LVDS_TX_0_DATA4_P/N(E5/D5), LVDS_TX_0_CLK_P/N(E6/D6),
LVDS_TX_1_DATA0_P/N(B4/A4), LVDS_TX_1_DATA1_P/N(E4/D4), LVDS_TX_1_DATA2_P/N(B3/A3), LVDS_TX_1_DATA3_P/N(B1/B2),
LVDS_TX_1_DATA4_P/N(F5/F6), LVDS_TX_1_CLK_P/N(C2/C3),
YES NO
Check the panel module. Check IC8001 and its peripheral circuits. (IC8151 thru
IC8154, etc.)
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