LC-42D43U
4 – 8
No video output from HDMI input (INPUT4)
INPUT4
Are signals fed from HDMI (SC1501) connector to input terminals
H_RX0
±
(pins 70 and 71), H_RX1
±
(pins 73 and 74), H_RX2
±
(pins 76 and 77) and H_RXC
±
(pins 67 and 68) of IC1507
(TMDS_SW)?
NO
Is IC1501 (E
2
PROM) accessed with I2C when connecting HDMI
device and is DDC_I2C_CLOCK/DATA data read out?
YES
YES
NO
Check IC1501 and peripheral circuits.
Are cables connected securely?
Check the setting of HDMI device.
Are signals fed from IC1507 (TMDS_SW) to input terminals
H_RX0± (pins B19 and A19), H_RX1± (pins A18 and B18),
H_RX2± (pins D18 and C18) and H_RXC± (pins C19 and D19)
of IC8101 (Broadcom)?
NO
Check IC1507 (TMDS_SW) and peripheral circuits.
For INPUT4, pin 21 is Low and pin 22 is High.
YES
Are digital video (LVDS) signals sent from pins 37-42 and 45-48
of IC2602?
NO
Check IC2602 and peripheral circuits.
Are digital video (COMOS) signal sent from IC8101 (DVODATA 0
~ 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)?
NO
Check IC8101 and peripheral circuits.
YES
Check LCD_CONTROL PWB.
When using an old HDMI transmission device, some video formats cannot be selected or no sound is heard. Since this model conforms to the latest
HDMI standard, the HDMI transmission device does not recognize the data of the latest version correctly. It is necessary to upgrade its firmware.
Download the latest firmware from the web site of each manufacturer, or contact the customer service center of each manufacturer.
Summary of Contents for Aquos LC-42D~43U
Page 5: ...LC 42D43U 1 1 LC 42D43U Service Manual CHAPTER 1 OPERATION MANUAL 1 SPECIFICATIONS ...
Page 6: ...LC 42D43U 1 2 2 OPERATION MANUAL ...
Page 7: ...LC 42D43U 1 3 ...
Page 8: ...LC 42D43U 1 4 ...
Page 9: ...LC 42D43U 1 5 ...
Page 10: ...LC 42D43U 1 6 ...
Page 11: ...LC 42D43U 1 7 ...
Page 12: ...LC 42D43U 1 8 3 DIMENSIONS ...
Page 33: ...LC 42D43U 3 2 30 80 80 1 CN2 IC1 7 QCNW G417WJQZ 14 12 CN7502 LA2 CN7501 LA1 ...
Page 36: ...LC 42D43U 3 5 MEMO ...
Page 38: ...LC 42D43U 4 2 2 SCHEMATIC DIAGRAM 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 1 ...
Page 39: ...LC 42D43U 4 3 11 13 12 14 15 16 18 19 17 ...
Page 40: ...LC 42D43U 4 4 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 2 ...
Page 41: ...LC 42D43U 4 5 11 13 12 14 15 16 18 19 17 ...
Page 42: ...LC 42D43U 4 6 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 3 ...
Page 43: ...LC 42D43U 4 7 11 13 12 14 15 16 18 19 17 ...
Page 44: ...LC 42D43U 4 8 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 4 ...
Page 45: ...LC 42D43U 4 9 11 13 12 14 15 16 18 19 17 ...
Page 46: ...LC 42D43U 4 10 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 5 ...
Page 47: ...LC 42D43U 4 11 11 13 12 14 15 16 18 19 17 ...
Page 48: ...LC 42D43U 4 12 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 6 ...
Page 49: ...LC 42D43U 4 13 11 13 12 14 15 16 18 19 17 ...
Page 50: ...LC 42D43U 4 14 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 7 ...
Page 51: ...LC 42D43U 4 15 11 13 12 14 15 16 18 19 17 ...
Page 52: ...LC 42D43U 4 16 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 8 ...
Page 53: ...LC 42D43U 4 17 11 13 12 14 15 16 18 19 17 ...
Page 54: ...LC 42D43U 4 18 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 9 ...
Page 55: ...LC 42D43U 4 19 11 13 12 14 15 16 18 19 17 ...
Page 56: ...LC 42D43U 4 20 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 10 ...
Page 57: ...LC 42D43U 4 21 11 13 12 14 15 16 18 19 17 ...
Page 58: ...LC 42D43U 4 22 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 11 ...
Page 59: ...LC 42D43U 4 23 11 13 12 14 15 16 18 19 17 ...
Page 60: ...LC 42D43U 4 24 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 12 ...
Page 61: ...LC 42D43U 4 25 11 13 12 14 15 16 18 19 17 ...
Page 62: ...LC 42D43U 4 26 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 13 ...
Page 63: ...LC 42D43U 4 27 11 13 12 14 15 16 18 19 17 ...
Page 64: ...LC 42D43U 4 28 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 14 ...
Page 65: ...LC 42D43U 4 29 11 13 12 14 15 16 18 19 17 ...
Page 66: ...LC 42D43U 4 30 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 15 ...
Page 67: ...LC 42D43U 4 31 11 13 12 14 15 16 18 19 17 ...
Page 68: ...LC 42D43U 4 32 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 16 ...
Page 69: ...LC 42D43U 4 33 11 13 12 14 15 16 18 19 17 ...
Page 70: ...LC 42D43U 4 34 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 17 ...
Page 71: ...LC 42D43U 4 35 11 13 12 14 15 16 18 19 17 ...
Page 72: ...LC 42D43U 4 36 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 18 ...
Page 73: ...LC 42D43U 4 37 11 13 12 14 15 16 18 19 17 ...
Page 74: ...LC 42D43U 4 38 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 19 ...
Page 75: ...LC 42D43U 4 39 11 13 12 14 15 16 18 19 17 ...
Page 76: ...LC 42D43U 4 40 AV TERMINAL Unit 1 2 ...
Page 77: ...LC 42D43U 4 41 ...
Page 78: ...LC 42D43U 4 42 AV TERMINAL Unit 2 2 ...
Page 79: ...LC 42D43U 4 43 ...
Page 80: ...LC 42D43U 4 44 MEMO ...
Page 104: ...LC 42D43U 24 7 PACKING PARTS S5 S4 S4 S3 S1 S2 S4 S4 S7 S6 ...