Sharp LC-46D64U Service Manual page 43

S-VIDEO: No external input video [INPUT-2]
Is INPUT-2 selected on the input select menu screen?
YES
Are there the S-VIDEO signal inputs at pins (42) (Y) and (44) (C) of
IC501 (AV_SW)?
YES
Are there the S-VIDEO signal outputs at pins (59) (Y) and (57) (C) of
connector (SC501) on the TERMINAL unit?
Are there the S-VIDEO signal inputs at pins (59) (Y) and (57) (C) of
connector (SC2203) on the MAIN unit?
Are there the S-VIDEO signal inputs at pins (AL17) (Y) and (AL16) (C)
of IC8001 (CPU)?
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)
Check the panel module.
No video (3)
NO
Does the INPUT-2 S1_PLUG
detection function?
Check the line between pin (6) of
input terminal (J504) and pin (41)
of IC501 (AV_SW).
NO
Check the line between pins (3)
(Y)/(4) (C) of J504 and pins (42)/
(44) of IC501.
YES
YES
YES
YES
NO Check the line between IC501 and SC501 (Q501 thru Q504,
etc.).
NO Check the line between SC501 and SC2203 connectors.
NO Check the line between SC2203 and IC8001 (Q2201 and
Q2205, etc.).
Check IC8001 and its peripheral circuits. (IC8151 thru IC8154,
etc.)
NO
4 – 3
LC-42D64U/46D64U/52D64U