DOWNLOAD LG 47LD500 LC470WUH-SCR7 Service Manual ↓ Size: 9.79 MB | Pages: 127 in PDF or view online for FREE

CONFIDENTIAL – DO NOT COPY 

Page 6-2

File No. SG-0362

 

J3

 

C

ONNECTION

 [JTAG INTERFACE] 

 

Pin 

Description 

1 AV33 

2 TVTREF#1 

3 GND 

4 JTRST# 

5 GND 

6 JTDI 

7 GND 

8 JTMS 

9 GND 

10 JTCK 

11 GND 

12 Pull 

High 

AV33 

13 GND 

14 JTDO 

15 GND 

16 N.C. 

17 GND 

18 JTAG 

DBGRQ 

19 GND 

20 JTAG 

DBGACK 

 

 

J4

 

C

ONNECTION 

[Main BD to LED Logo] 

 

Pin 

Description 

1 

5VSB

 

2 

WHITE

 

3 

AMBER

 

 

CONFIDENTIAL – DO NOT COPY 

Page 6-3

File No. SG-0362

 

J6

 

C

ONNECTION 

[Main BD to IR Light Sensor BD] 

 

Pin 

Description 

1 OIRI_in 

2 5VSB 

3 DETECT 

4 GND 

5 LS_SCL 

6 LS_SDA 

 

 

J9

 

C

ONNECTION 

[

 

LVDS1

 

] 

 

 

Pin Description Pin Description 

1 OPC_EN 21 R4CLKN 

2 LVDSVDD 22  R4CN 

3 LVDS_OPTION 23 

R4BP 

4 LVDSVDD 24  R4AP 

5 BIT_SEL 25  R4BN 

6 LVDSVDD 26  R4AN 

7 VBR_OUT27 27 

GND 

8 LVDSVDD 28 

GND 

9 EXT_BR28 29  R3EP 

10 PANEL_IO1 30 

R3DP 

11 SCAN_BLK2 31 

R3EN 

12 PANEL_IO3 32 

R3DN 

13 GND 33 

R3CLKP 

14 GND 34 R3CP 

15 R4EP 35 

R3CLKN 

16 R4DP 36 R3CN 

17 R4EN 37 R3BP 

18 R4DN 38 R3AP 

19 R4CLKP 39  R3BN 

20 R4CP 40 R3AN 

CONFIDENTIAL – DO NOT COPY 

Page 6-4

File No. SG-0362

 

J10

 

C

ONNECTION 

[

 

LVDS2

 

] 

 

J15

 

C

ONNECTION 

[Main BD to SPEAKER

 

] 

Pin 

Description 

1 R+ 

2 R- 

3 L+ 

4 L- 

 

J16

 

C

ONNECTION 

[Main BD to IR Light Sensor BD] 

Pin 

Description 

1 OIRI_in 

2 5VSB 

3 GND 

4 LS_SCL 

5 LS_SDA 

6 DETECT 

 

Pin Description Pin Description 

1 GND 16 GND 

2 GND 17 

R1EP 

3 R2EP 18 R1DP 

4 R2DP 19 R1EN 

5 R2EN 20 R1DN 

6 R2DN 21 

R1CLKP 

7 R2CLKP 22  R1CP 

8 R2CP 23 

R1CLKN 

9 

R2CLKN 

24 

R1CN 

10 R2CN 25 R1BP 

11 R2BP 26 R1AP 

12 R2AP 27 R1BN 

13 R2BN 28 R1AN 

14 R2AN 29  GND 

15 GND 30 GND 

CONFIDENTIAL – DO NOT COPY 

Page 7-1

File No. SG-0362

 

An RGB (analog) signal is inputted the D-SUB 15pin to the MT5392B which transfers it to a digital 
signal by the A/D converter. Then MT5392B generates a Low Voltage Differential Signal (LVDS) for 
display device. The Extended Display Identification (EDID) code is recorded in EEPROM. 

 

A HDMI (Digital) signal is inputted the HDMI 1&2&3&4 CON to the PI3HDMI245 switch. The 
passing signal is processed with the MT5392B. Then MT5392B generates a LVDS for display 
device. 

 

HDTV & Component signal is inputted to the MT5392B.After processing, MT5392B generates a 
LVDS for display device. The audio signal is inputted MT5392B. After processing, MT5392B 
transmits the signal to audio output. an audio amplifier and line out. 

 

The CVBS and S-Video signal is inputted to the MT5392B.After processing, MT5392B generates a 
LVDS for display device. The audio signal is also inputted MT5392B. After processing, MT5392B 
transmits the signal to audio amplifier. Then, the amplified signal is the output audio signal. 
 

TV signal is demodulated by the tuner then the demodulating signal is divided into two parts, video 
and audio signal. The video signal is processed by MT5392B then MT5392B generates a LVDS for 
display device. The audio signal is transmitted in the route named SIF. The SIF signal is 
demodulated and decoded by MT5392B. The audio signal is inputted MT5392B. MT5392B 
transmits the signal to audio amplifier. Then, the amplified signal is the output audio signal. 
 

DTV signal demodulated by the tuner then the demodulating signal is divided into two parts, video 
and audio signal. The video signal is demodulated by MT5392B. The demodulated signal is 
transmitted to and processed by MT5392B. Also, MT5392B generates a LVDS for display device. 
The audio signal is transmitted in the route named FAT-IN. The FAT-IN signal is demodulated and 
decoded by MT5392B. After processing, MT5392B transmits the signal to audio amplifier. Then, 
the amplified signal is the output audio signal.