LC-52/60/70LE640U/C6400U,LC-80LE633U/844U (1st Edition)
6 – 33
No video (4)
PC: No external input video [INPUT-8]
Is INPUT-8 selected on the input select menu screen?
YES
NO
Select INPUT-8 on the input select menu screen for the right input signal.
Is IC2601 (HDMI-SW) accessed by I2C, with PC connected, to read the VGA_SCL/SDA data?
Check the DDC-12C line and its peripheral circuits. (IC2601 and its peripherals).
Are there the video signal inputs at pins (AR24/AT24) (G), (AU24) (B) and (AR25) (R) of IC3301 (CPU)?
Are there the VSYNC/HSYNC signal inputs at pins (AM25) and (AN25) of IC3301?
YES
NO
Check the line between SC510 and IC3301,and their 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.
Summary of Contents for AQUOS LC-52LE640U
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Page 14: ...LC 52 60 70LE640U C6400U LC 80LE633U 844U 1st Edition 2 5 LC 80LE844U ...
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Page 19: ...LC 52 60 70LE640U C6400U LC 80LE633U 844U 1st Edition 3 3 3 DIMENSIONS LC 80LE633U 844U ...
Page 168: ...LC 52 60 70LE640U C6400U LC 80LE633U 844U 1st Edition 8 6 MEMO ...
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