Sharp LC-60LE660U Service Manual page 41

Is HDMI2 selected on the input select menu screen?
Does the HOT PLUG detection function?
Does the DDC5V signal come from pin(18) of SC1502 to R1508?
Does the HPD signal come from pin(117) of IC3301 to pin(19) of
SC1502?
Is IC3301(CPU) accessed by I2C, with HDMI connected, to read
the DDC-I2C SCL/SDA data?
Are there the TMDS signals at input pins of IC3301(CPU)?
Check the HDMI cable and connected equipment condition.
HDMI:No external input video [HDMI2]
YES
YES
YES
YES
YES
No video (1)-2
NO Select HDMI2 on the input select menu screen for the right input
signal.
NO Check the line between the pin(18) of SC1502 and R1508.
NO Check the line between the pin(19) of SC1502 and the pin(117) of
IC3301.
NO Check the DDC-I2C line and its peripheral circuits.
(1)SC1502 pin(15)(SCL), pin(16)(SDA)
(2)IC3301 pin(118), pin(119)
NO Check the TMDS line (between SC1502 and IC3301) and its
peripheral circuits.
[IC3301 TMDS input pins]
pin(143/144)(CLK-/+), pin(145/146)(D0-/+),
pin(147/148)(D1-/+), pin(149/150)(D2-/+).
6 – 7
LC-60/70LE660U,C6600U