LC-52/60/70LE640U/C6400U,LC-80LE633U/844U (1st Edition)
6 – 7
No video (2)
COMPONENT: No external input video [INPUT-5]
Is INPUT-5 selected on the input select menu screen?
Is the INPUT-SELECT for the input signal?
YES
NO
Select INPUT-5 on the input select menu screen for the
right input signal.
Does the COMP1_PLUG detection function?
Check the line between pin (17) of input terminal (J510)
and pin (L32) of IC3303 (CPU).
Is the T-CON PWB connected?
VBO_HTPDN (40pin), VBO_LOCKN (39pin) of P2604 become Low if there is no prob-
lem in the connection.
NO
Check the panel module and harness.
YES
Are the V-By-One signal input to the pin of P2604?
VBO/- (36/37pin), VBO/- (32/33pin),
VBO/- (28/29pin), VBO/- (24/25pin).
NO
Check IC3303 and its peripheral circuits.
(IC3501/IC3502/IC3503, etc.)
YES
Check the panel module and harness.
Summary of Contents for AQUOS LC-52LE640U
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Page 19: ...LC 52 60 70LE640U C6400U LC 80LE633U 844U 1st Edition 3 3 3 DIMENSIONS LC 80LE633U 844U ...
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