Sharp AQUOS LC-52LE640U, Руководство по обслуживанию

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LC-52/60/70LE640U/C6400U,LC-80LE633U/844U (1st Edition)
6 – 35
No video (6)
MHL:No external input video [INPUT-4] (using MHL Cable with Mobile Phone)
Is INPUT-4 selected on the input select menu screen?
NO
Select INPUT-4 on the input select menu screen for the right
input signal.
YES
Does the MHL Cable detection function?
NO
Check the MHL Cable.
Does the CD_SENSE signal (High level) come from pin(2) of SC1504 to
pin(69) of IC2601(HDMI-SW)? Check the line between the pin(2) of SC1504 and the pin(69) of
IC2601.
YES
Does the CBUS signal come from pin(50) of IC2601 to pin(19) of
SC1504?
NO
Check the CBUS line between the pin(19) of SC1504 and the
pin(50) of IC2601, and their peripheral circuits.(Q1507, etc.)
YES
Does the VBUS signal (5V valtage power signal) output from pin(6) of
IC1507 to pin(18) of SC1504?
NO
Check the VBUS line between the pin(19) of SC1504 and the
pin(6) of IC1507, and their peripheral circuits.(IC1508, IC1509,
etc)
YES
Are there the TMDS signal at input pin(1/2)(D0-/+) of IC2601(HDMI-
SW)?
NO
Check the TMDS line (between SC1504 and IC2601) and its
peripheral circuits.(IC1504, etc.)
YES
Are there the TMDS signal at input pins of IC3301(CPU)?
NO
Check the TMDS line (between IC2601 and IC3301) and its
peripheral circuits.
[IC3301 TMDS input pins]
pin(AH35/AH34)(CLK-/+),
pin(AG35/AG34)(D0-/+),
pin(AG37/AG36)(D1-/+),
pin(AF35/AF34)(D2-/+).
YES
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.
Is the T-CON PWB connected?
VBO_LOCKN pin(40) of SC3801 become Low if there is no problem in
the connection.
NO
Check the T-CON PWB and harness.
Check IC3301 and SC3801 and their peripheral circuits in Main
PWB.
YES
Are the V-By-One HS signal input to the pin of SC3801?
VBO/-(36/37pin), VBO/-(32/33pin),
VBO/-(28/29pin), VBO/-(24/25pin).
NO
Check IC3301 and its peripheral circuits.(IC3501/IC3502/
IC3503/IC3504, etc.)
YES
Check the panel module and harness.