LC-42D65U
6 – 8
[HDMI input] No video (6)
HDMI: No external input video [INPUT-9]
Is INPUT-9 selected on the input select menu screen?
YES
NO
Select INPUT-9 on the input select menu screen for
the right input signal.
Does the HOT PLUG detection function?
Does the DDC5V signal come from pin(18) of SC1801 to pin(AJ10) of
IC8001(CPU)?
YES
NO
Check the line between the input terminals of
SC1801 and IC8001. (Q1802, etc.)
Check the line between the pin(AL9) and (AL3) of
IC8001.
Does the HPD signal come from pin(50) of IC1804 to pin(19) of SC1801?
YES
NO
Check the line between the pin(50) of IC1804 and the
pin(19) of SC1801. (Q1801, etc.)
Check the line between the pin(31) of IC1804 and the
pin(AL2) of IC8001.
Are there the TMDS signal inputs at pins(53/54)(CLK-/+), (56/57)(D0-/+),
(59/60)(D1-/+), (62/63)(D2-/+), all of IC1804?
YES
NO
Is IC1801(EEPROM) accessed by I2C, with HDMI
connected, to read the DDC_I2C SCL/SDA data?
NO
Check the DDC line and its peripheral circuits.
(IC1801 and its peripherals)
Are there the TMDS signal inputs at pins(AM1/AM2)(CLK-/+), (AN1/
AN2)(D0-/+), (AM3/AM4)(D1-/+), (AP2/AN3)(D2-/+), all of IC8001(CPU)?
YES
NO
Check IC1804, IC8001 and their peripheral circuits.
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 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.
Check the panel module.
