LC-40/46/52LE820E, LC-40/46LU820E
7 – 10
[External input HDMI-1/2/3/4] No picture on the display (10)
Does not the picture/sound of the HDMI signal input to HDMI-1/2/3/4 go out?
Is the Hot plug detection function output from pin (19) of the
HDMI-1 (SC1503) normal?
NO
Check the line between SC1503 and pin (45) of IC1504 (HDMI-
SW).
Is the Hot plug detection function output from pin (19) of the
HDMI-2 (SC1502) normal?
NO
Check the line between SC1502 and pin (41) of IC1504 (HDMI-
SW).
Is the Hot plug detection function output from pin (19) of the
HDMI-3 (SC1501) normal?
NO
Check the line between SC1501 and pin (35) of IC1504 (HDMI-
SW).
Is the Hot plug detection function output from pin (19) of the
HDMI-4 (SC1505) normal?
NO
Check the line between SC1505 and pin (31) of IC1504 (HDMI-
SW).
YES
NO
Check the setting of an external input device that connects with
HDMI-1/2/3/4.
Is EDID data pins (44/HDMI1_SCL), (43/HDMI1_SDA) of IC1504
accessed, and is it read from pins (15, 16) of a HDMI-1
(SC1503)?
NO
Is access possible in the exchange of IC1504?
Is EDID data pins (40/HDMI2_SCL), (39/HDMI2_SDA) of IC1504
accessed, and is it read from pins (15, 16) of a HDMI-2
(SC1502)?
NO
Is EDID data pins (34/HDMI3_SCL), (33/HDMI3_SDA) of IC1504
accessed, and is it read from pins (15, 16) of a HDMI-3
(SC1501)?
Check the peripheral circuit of SC1502/1503/1505/1501and
IC1504.
Is EDID data pins (30/HDMI3_SCL), (29/HDMI3_SDA) of IC1504
accessed, and is it read from pins (15, 16) of a HDMI-4
(SC1505)?
YES
Is TMDS signal input into pins (20, 19/HDMI1_CLKP/N), (22,21/
HDMI1_D0P/N), (24, 23/HDMI1_D1P/N), (26, 25/HDMI1_D2P/N)
of IC1504 from HDMI-1 (SC1503)?
NO
Check the line between HDMI-1 (SC1503) and IC1504.
Is TMDS signal input into pins (12, 11/HDMI2_CLKP/N), (14, 13/
HDMI2_D0P/N), (16, 15/HDMI2_D1P/N), (18, 17/HDMI2_D2P/N)
of IC1504 from HDMI-2 (SC1502)?
NO
Check the line between HDMI-2 (SC1502) and IC1504.
Is TMDS signal input into pins (2, 1/HDMI3_CLKP/N), (4, 3/
HDMI3_D0P/N), (6, 5/HDMI3_D1P/N), (8, 7/HDMI3_D2P/N) of
IC1504 from HDMI-3 (SC1501)?
NO
Check the line between HDMI-3 (SC1501) and IC1504.
Is TMDS signal input into pins (66, 65/HDMI4_CLKP/N), (68, 67/
HDMI4_D0P/N), (70, 69/HDMI4_D1P/N), (72, 71/HDMI4_D2P/N)
of IC1504 from HDMI-4 (SC1505)?
NO
Check the line between HDMI-4 (SC1505) and IC1504.
YES
Are TMDS_Rx and the I2C_SINK signal output from IC1504
respectively?
Pins (62, 63/SW_TMDS_CLKP/N), (60, 61/SW_TMDS_D0P/N),
(58, 59/SW_TMDS_D1P), (56, 57/SW_TMDS_D2P)
NO
Check the IC1504 and peripheral circuits.
YES
Is the TMDS_Rx/ I2C_SINK signal input to IC3302 (Digital AV
decode & Main CPU)?
Pins (AK6, AJ6/SW_TMDS_CLKP/N), (AK7, AJ7/
SW_TMDS_D0P/N), (AK8, AJ8/SW_TMDS_D1P/N), (AK9, AJ9/
SW_TMDS_D2P/N) from IC1504
NO
Check the line between IC1504 and IC3302.
YES
Refer to “The picture doesn't appear in all modes.” or “No sound
output in all modes.”
Summary of Contents for LC-40LE820E
Page 4: ...LC 40 46 52LE820E LC 40 46LU820E iii End of life disposal End of life disposal ...
Page 34: ...LC 40 46 52LE820E LC 40 46LU820E 4 22 M E M O ...
Page 36: ...LC 40 46 52LE820E LC 40 46LU820E 5 2 2 LC 46LE820E LU820E TOUCH SENSOR Unit ...
Page 37: ...LC 40 46 52LE820E LC 40 46LU820E 5 3 3 LC 52LE820E TOUCH SENSOR Unit ...
Page 38: ...LC 40 46 52LE820E LC 40 46LU820E 5 4 M E M O ...
Page 118: ...LC 40 46 52LE820E LC 40 46LU820E 2 17 M E M O ...
Page 135: ...LC 40 46 52LE820E LC 40 46LU820E ...
Page 148: ...LC 40 46 52LE820E LC 40 46LU820E 2 7 M E M O ...
Page 153: ...LC 40 46 52LE820E LC 40 46LU820E ...
