LG 55LW5600 - Connecting to an Audio System; Digital Optical Audio Connection

July 2011 LCD-DV 55LW5600
55LW5600 Main Board (Front and Back Side) Component Layout
67
P901
P1702
P502
IC802
IC803
IC602
EB
C
Q901
P3501
P3502
P1302
E
B
C
Q902
X601
SW1
IC504
IC508
P601 N/C
EB
C
Q1001
D
SG
Q1002
BCM
IC101
IC102
IC804
IC401
IC402
IC1702
L505
Q503
Q508
IC501
IC507
IC506
IC505
IC1203
IC103
IC1204
IC701
1
2
3
2
IC2103
P101
N/C
P3503
Q501Q502
E
B
C
E
B
C
L1704
L1707
L1708
L1703
X602
IC801
MAIN BOARD
p/n: EBR72717002 AUSYLHR
p/n: EBR73145701 AUSYLJR
p/n: EBR72717004 AUSYLUR
p/n: EBT61398007 AUSYLUR
1
18
18. IF p
17. IF n
16. IF AGC
15. Reset
14. 3.3V
13. 1.26V
12. GND
11. CVBS
10. NC
9. SIF
8. NC
7. SDA
6. SCL
5. NC
4. NC
3. 5V
2. NC
1. NC
TU2101
TUNER
IC5401
IC5403
IC5301
IC5201
FRC
X5201
SW1
Microprocessor
Reset
IC5402
P5201
P102
X101
45Mhz
SW5201
Debug
Debug
n/c
10Mhz
32.78K
RL_ON Drivers
Audio Amp
1.5V_FRC
0.9V_CORE
0.9V_Core SW
RS232
NAND
FLASH
NVRAM
USB1 EDID
5V_USB
5V_Normal
3.3V_
Normal
0.9V_Core SW
Video
Processor
Earphone
Amp
HDMI
Selector
1.5V_DDR
2.5V_BCM35230
1.26V_FRC
PC Data
PC EDID
1.26V_TU
MICRO
DDR
DDR
DDR
USB2 EDID
3.3V_FRC
Wireless Power SW
24MHz
HP
Mute
TU_SIF
TU_CVSB
CEC
RGB_DDC_SDA
RGB_DDC_SCL
URSA Reset
SPI Flash
Amp
Mute
INV_CTL
Power Det (24V)
Power Det (12V)
Panel Vcc Switch
EEPROM
EB
C
Q904
IC601
E
B
C
Q906
S
G
D
Q507
E
B
C
Q506
EB
C
Q505
D810
C
A1 A2
EB
C
EB
C
Q2105
C
A1
A2
D707
D710
C
A1 A2
C
A1
A2
D708
D711
C
A1 A2
C
A1
A2
D713
Q102
G
S
B
D
G
S
B
D
G
S
B
D
Q101
EB
C
Q801
Q710
Q2104
3
1
2
IC502
3
1
2
IC503
E
B
C
Q504
EB
C
Q1701
IC5202
E
B
C
SG
D
Q5202
Q5201
P502 "MAIN Board" Connector To P201 "SMPS Board"
Pin Label STBY Run Diode Check
1PWR-ON 0V 3.4V 2.79V
2-4 24V 0V 25V OL
5-8 Gnd Gnd Gnd Gnd
9-12 3.5V_ST 3.56V 3.51V 1.15V
13-15 Gnd Gnd Gnd Gnd
16 GND/VSYNC n/c n/c OL
17 12V 0V 12.01V 2.09V
18 DRV-ON 0V 3.24V 1.54V
19 12V 0V 12.01V 2.09V
20 A-DIM n/c n/c OL
21 12V 0V 12.01V 2.09V
22 PDIM-1 0V 0.2V~3.3V 2.4V
23 n/c n/c n/c OL
24 Err OUT n/c n/c OL
P901 "MAIN Board" To "IR Board" J1
Pin Label STBY Run Diode Check
1SCL 3.55V 3.48V 3.29V
2SDA 3.48V 3.29V
3Gnd Gnd Gnd Gnd
4KEY 1 3.33V 3.31V 1.84V
5KEY 2 3.33V 3.31V 1.84V
6 3.5V_ST 3.55V 3.48V 1.15V
7Gnd Gnd Gnd Gnd
8LED_B/BUZZ 0V 0V OL
9IR 1.5V 1.41V OL
10 Gnd Gnd Gnd Gnd
11 +3.3V_Normal 0.0V 3.33V 0.55V
12 LED_R/BUZZ 0V 0V 2.68V
13 Gnd Gnd Gnd Gnd
14 S/T_SCL 3.55V 3.48V 1.91V
15 S/T_SDA 3.55V 3.48V 1.92
3.55V