Sharp Aquos LC-60C6600U, Service Manual

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