Sharp LC-60LE745U Service Manual page 61

Is INPUT-4 selected on the input select menu screen?
YES
Does the MHL Cable detection function?
Does the CD_SENSE signal (High level) come from pin(2) of SC1504 to
pin(69) of IC2601(HDMI-SW)?
YES
Does the CBUS signal come from pin(50) of IC2601 to pin(19) of
SC1504?
YES
Does the VBUS signal (5V valtage power signal) output from pin(6) of
IC1507 to pin(18) of SC1504?
YES
Are there the TMDS signal at input pin(1/2)(D0-/+) of IC2601(HDMI-
SW)?
YES
Are there the TMDS signal at input pins of IC3301(CPU)?
YES
Is the T-CON PWB connected?
VBO_LOCKN pin(40) of SC3801 become Low if there is no problem in
the connection.
YES
Are the V-By-One HS signal input to the pin of SC3801?
VBO_CN_TXA+/-(36/37pin), VBO_CN_TXB+/-(32/33pin),
VBO_CN_TXC+/-(28/29pin), VBO_CN_TXD+/-(24/25pin).
YES
Check the panel module and harness.
LC-60/70LE745U,C7450U,LE845U,C8470U,LE847U (1st Edition)
MHL:No external input video [INPUT-4] (using MHL Cable with Mobile Phone)
No video (6)
Select INPUT-4 on the input select menu screen for the right
input signal.
NO
Check the MHL Cable.
Check the line between the pin(2) of SC1504 and the pin(69) of
NO
IC2601.
Check the CBUS line between the pin(19) of SC1504 and the
pin(50) of IC2601, and their peripheral circuits.(Q1507, etc.)
NO
Check the VBUS line between the pin(19) of SC1504 and the
pin(6) of IC1507, and their peripheral circuits.(IC1508, IC1509,
NO
etc)
Check the TMDS line (between SC1504 and IC2601) and its
peripheral circuits.(IC1504, etc.)
NO
Check the TMDS line (between IC2601 and IC3301) and its
peripheral circuits.
NO
[IC3301 TMDS input pins]
pin(AH35/AH34)(CLK-/+),
pin(AG35/AG34)(D0-/+),
pin(AG37/AG36)(D1-/+),
pin(AF35/AF34)(D2-/+).
Check the I2C line (between IC2601 and IC3301).
IC2601:pin(71)(SCL), pin(70)(SDA)
IC3301:pin(AN12), pin(AP12)
Check IC2601 and its peripheral circuits.
Check the T-CON PWB and harness.
Check IC3301 and SC3801 and their peripheral circuits in Main
NO
PWB.
Check IC3301 and its peripheral circuits.(IC3501/IC3502/
IC3503/IC3504, etc.)
NO
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