LC-60LE925E (serv.man18). Troubleshooting Table - Sharp TV Service Manual (repair manual). Page 12

LC-46/60LE925E (1st Edition)

7 – 12

                                            
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 (58/HDMI1_SCL), (57/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 (73/HDMI2_SCL), (72/HDMI2_SDA) of IC1504 accessed, and is it 
read from pins (15, 16) of a HDMI-2 (SC1502)?

NO

Is EDID data pins (54/HDMI3_SCL), (53/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/
1505/1501 and IC1504.

Is EDID data pins (49/HDMI4_SCL), (48/HDMI4_SDA) of IC1504 accessed, and is it 
read from pins (15, 16) of a HDMI-4 (SC1505)?

YES

Is the TMDS signal input into pins (27, 26/HDMI1_CLKP/N), (29,28/HDMI1_D0P/N), 
(31, 30/HDMI1_D1P/N), (33, 32/HDMI1_D2P/N) of IC1504 from HDMI-1 (SC1503)?

NO

Check the line between HDMI-1 (SC1503) 
and IC1504.

Is the TMDS signal input into pins (18, 17/HDMI2_CLKP/N), (20, 19/HDMI2_D0P/
N), (22, 21/HDMI2_D1P/N), (24, 23/HDMI2_D2P/N) of IC1504 from HDMI-2 
(SC1502)?

NO

Check the line between HDMI-2 (SC1502) 
and IC1504.

Is the TMDS signal input into pins (9, 8/HDMI3_CLKP/N), (11, 10/HDMI3_D0P/N), 
(13, 12/HDMI3_D1P/N), (15, 14/HDMI3_D2P/N) of IC1504 from HDMI-3 (SC1501)?

NO

Check the line between HDMI-3 (SC1501) 
and IC1504.

Is the TMDS signal input into pins (100, 99/HDMI4_CLKP/N), (2,1/HDMI4_D0P/N), 
(4, 3/HDMI4_D1P/N), (6,5/HDMI4_D2P/N) of IC1504 from HDMI-4 (SC1505)?

NO

Check the line between HDMI-4 (SC1505) 
and IC1504.

YES

Is the TMDS signal output from IC1504 respectively?
Pins (86, 87/SW_TMDS_CLKP/N), (84, 85/SW_TMDS_D0P/N), 
(82, 83/SW_TMDS_D1P), (80, 81/SW_TMDS_D2P)

NO

Check the IC1504 and peripheral circuits.

YES

Is the above-mentioned TMDS signal input to connector SC1501?

NO

Check the line between IC1504 and SC1501.

YES

Is the above-mentioned TMDS signal input to connector SC5601 on HDMI CON-
VERTER from MAIN PWB?

NO

Check the Harness [HN/MAIN-HDMI CON-
VERTER]

YES

Power is supplied to HDMI CONVERTER?

NO

Check the Harness [PN/POWER-HDMI CON-
VERTER]

YES

Is the above-mentioned TMDS signal input to connector SC1501 from HDMI CON-
VERTER?

NO

Check the Harness [HN/MAIN-HDMI CON-
VERTER]

YES

Is TMDS signal input to IC3302 (Digital AV decode & Main CPU)?
Pins (AJ8, AK8/TX_TMDS_D1N/P), (AJ7, AK7/TX_TMDS_D2N/P), 
(AJ7, AK8/TX_TMDS_D0N/P), (AK6, AJ6/TX_TMDS_CLKN/P) from SC1501

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.”