LC-46D65E (serv.man5). Troubleshooting Table - Sharp TV Service Manual (repair manual). Page 10

LC-46D65E/RU

4 – 10

Is the Hot plug detection function output from pin (19) of the HDMI-1 
(SC1502) normal?

NO

Check the line between SC1502 and pin(50) of IC1507 
(TMDS-SW).

Is the Hot plug detection function output from pin (19) of the HDMI-2 
(SC1501) normal?

NO

Check the line between SC1501 and pin(35) of IC1507 
(TMDS-SW).

Is the Hot plug detection function output from pin (19) of the HDMI-3 
(SC5301) normal?

NO

Check the line between SC5301 and pin(50) of IC5301 
(TMDS-SW).

YES

NO

Check the setting of an external input device that con-
nects with HDMI-1/2/3.

Is EDID data pins (11)/SCL1, (10)/SDA1 of IC1504 (FRAM) accessed, 
and is it read from pins (15, 16) of a HDMI-1 (SC1502)?
Is EDID data pins (14)/SCL2, pin(13)/SDA2 of IC1504 (FRAM) accessed, 
and is it read from pins (15, 16) of a HDMI-2 (SC1501)?

NO

Is access possible in the exchange of IC1504?

Is EDID data pins (5)/SCL3, (6)/SDA3 of IC1504 (FRAM) accessed, and 
is it read from pins (15, 16) of a HDMI-3 (SC5301)?

NO

YES

<HDMI-1/2>
Check the peripheral circuit of SC1501, SC1502, IC1504 
and IC1507.
<HDMI-3>
Check the peripheral circuit of SC5301, IC1504 and 
IC5301.

Is TMDS signal input into pins (54, 53/TMDS1_CLK_P/N), (57, 56/
TMDS1_D0_P/N), (60, 59/TMDS1_D1_P/N), (63, 62/ 
TMDS1_D2_P/N) of IC1507 (TMDS-SW) from HDMI-1 (SC1502)?

NO

Check the line between HDMI-1 (SC1502) and IC1507.

YES Is TMDS signal input into pins (39, 38/TMDS2_CLK_P/N), (42, 41/

TMDS2_D0_P/N), (45, 44/TMDS2_D1_P/N), (48, 47/ 
TMDS2_D2_P/N) of IC1507 (TMDS-SW) from HDMI-2 (SC1501)?

NO

Check the line between HDMI-2 (SC1501) and IC1507.

Is TMDS signal input into pins(54, 53/TMDS3_CLKP/N), (57, 56/
TMDS3_D0P/N), (60, 59/TMDS3_D1P/N), (63, 62/ TMDS3_D2P/
N) of IC5301(TMDS-SW) from HDMI-3 (SC5301)?

NO

Check the line between HDMI-3 (SC5301) and IC5301.

YES

Are TMDS_Rx and the I2C_SINK signal output from IC5301 
respectively?
Pins (26, 27/TMDS3H_CLK_P/N), (23, 24/TMDS3H_D0_P/N), 
(20, 21/TMDS3H_D1_P/N), (17, 18/TMDS3H_D2_P/N), (29, 30/
SCL3H_ SINK/SDA3H_SINK)

NO

Check the IC5301 and peripheral circuits.

YES

Is the TMDS_Rx/ I2C_SINK signal output from IC5301 input to 
IC1507 (TMDS-SW)?
Pins (6,4 /TMDS3H_CLK_P/N), (8, 7/TMDS3H_D0_P/N), (11, 10/
TMDS3H_D1_P/N), (14, 13/TMDS3H_D2_P/N), (2, 1/SCL3H_ 
SINK/SDA3H_SINK)

NO

Check the line between IC5301 and IC1507.

YES

Are TMDS_Rx and the I2C_SINK signal output from IC1507 respectively?
Pins (26, 27/TMDS_CLK_P/N), (23, 24/TMDS_D0_P/N), (20, 21/ 
TMDS_D1_P/N), (17, 18/TMDS_D2_P/N), (29, 30/SCL_SINK/
SDA_SINK)

NO

Check the IC1507 and peripheral circuits.

YES

Is the TMDS_Rx/ I2C_SINK signal output from IC1507 input to IC8101 
(DIGITAL AV DECODER & MAIN CPU & VIDEO PROCESSER)?

NO

heck the line between IC1507 and IC8101.

Pins (K1, K2/TMDS_CLK_P/N), (L1, L2/TMDS_D0_P/N), (M1, M2/
TMDS_D1_ P/N), (N1, N2/TMDS_D2_P/N), (G2, G3/SCL_SINK/
SDA_SINK)

YES

Refer to “The picture doesn't appear in all modes” or “No 
sound output in all modes”