LC-52SE94U/LC-52SE941U/LC-65SE94U
6 – 6
[HDMI signal input] No video (5)
HDMI: No external input video [INPUT-6]
Is INPUT-6 selected on the input select menu screen?
YES
NO
Select INPUT-6 on the input select menu screen for the right input sig-
nal.
Does the HOT PLUG detection function?
Does the DDC5V signal come from pin(18) of SC1602 to pin(52) of
IC1604(HDMI-SW)?
YES
NO
Check the line between the input terminals of
SC1602 and IC1604.
Does the HPD signal come from pin(36) of IC1604 to pin(19) of
SC1602?
NO
Check the line between IC1604 and SC1602.
IC1604 pin(36)
IC1608 pin(4)
SC1602 pin(19)
Are there the TMDS signal inputs at pins(38/39)(CLK-/+), (41/42)(D0-/+), (44/45)(D1-/+),
(47/48)(D2-/+), all of IC1604?
YES
NO
Is IC1603(EEPROM) accessed by I2C, with HDMI connected, to read
the DDC_I2C SCL/SDA data?
NO
Check the DDC line and its peripheral circuits (IC1603 and its peripher-
als).
Are there the TMDS signal inputs at pins(AM1/AM2)(CLK-/+), (AN1/AN2)(D0-/+), (AM3/
AM4)(D1-/+), (AP2/AN3)(D2-/+), all of IC8001(CPU)?
NO
Check IC1604, IC8001 and their periph-
eral circuits.
YES
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),
NO
Check IC8001 and its peripheral circuits.
(IC8151 thru IC8154, etc.)
Is IC8451(EEPROM for HDCP) accessed
by I2C(SCL2/SDA2) to read HDCP data?
Check IC8451 and its peripheral circuits.
YES
Check the panel module.
