Sharp LC-60LE831U Service Manual page 72

LC-40/46/52/60LE835U/830U/832U/LC-60LE831U
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?
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).
YES
In LE835U.
Are the LVDS signal input to the pin of P2601?
LVDS0_FPGA_D0P/N (39/40pin), LVDS0_FPGA_D1P/N (37/38pin),
LVDS0_FPGA_D2P/N (35/36pin), LVDS0_FPGA_D3P/N (30/31pin),
LVDS0_FPGA_D4P/N (28/29pin), LVDS0_FPGA_CLKP/N_74MHz (32/33pin),
LVDS1_FPGA_D0P/N (25/26pin), LVDS1_FPGA_D1P/N (23/24pin),
LVDS1_FPGA_D2P/N (21/22pin), LVDS1_FPGA_D3P/N (16/17pin),
LVDS1_FPGA_D4P/N (14/15pin), LVDS1_FPGA_CLKP/N_74MHz (18/19pin).
In LE830U/LE831U/LE832U.
Is the T-CON PWB connected?
VBO_HTPDN (40pin), VBO_LOCKN (39pin) of P2604 become Low if there is no
problem in the connection.
YES
Are the V-By-One signal input to the pin of P2604?
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.
No video (2)
NO
NO
NO
6 – 8
Check IC3303 and its peripheral circuits.
(IC3501/IC3502, etc)
Check the panel module and harness.
Check IC3303 and its peripheral circuits.
(IC3501/IC3502/IC3503, etc)