LG 42PW350 - Main Board Drawing (Front and Back Side) Component Layout

IC101
Micro/
Video
Processor
P1401
IC1400
P902
1
2
3
2
P1404
1
2
3
2
IC1401
IC700
P700
1
2
3
2
IC1406
IC506
IC504
IC1407
IC1202
123
1
2
3
IC600
IC507
IC1404
L1402
IC502
L503
D
G
S
Q501
L506IC1201
A2 A1
C
D200
IC103
L502
Q1401
D
G
S
D
G
S
Q1402
X1400
C
BE
Q1400
P501
X200
24Mhz
L700L701
L702
L703
R-R+L-L+
D501
IC501
TUNER
MAIN BOARD
p/n: EBT61267425 AUSLLJR
Other Main Boards
p/n: EBR72942901 AUSLLHR
p/n: EBR71638619
Interchangeable
Q901
C
BE
24Mhz
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
TU1300
C
A1 A2
IC1402
D805
IC1101
IC804
C
B
E
Q807
Q1304
C
BE
C
BE
Q1305
IC901
IC900
IC801
C
BE
Q805
C
A1A2
D803
IC802
C
B
E
C
A1
A2
D804
Q103
CB
E
Q806
1
D801
C
A1
A2
IC104
IC102
IC109
123
IC505
C
B
E
Q500
3
12
IC500
Q800
C
B
E
Q900
NAND
FLASH
42PW350 Main (Front and Back) Layout Drawing
141
June 2011 42PW350 Plasma
P501 "Main" to P813 "SMPS"
Pin Label STBY Run Diode Check
1_2
a
17V
0V 17V Open
3-4 Gnd Gnd Gnd Gnd
5-7
a
5.1V
0.46V 5.17V 1.18V
8
a c
Error_Det
3.44V 4.02V 1.73V
9-12 Gnd Gnd Gnd Gnd
13-14 STBY_5V 3.47V 5.14V 1.07V
15
a
RL_ON
0V 3.28V 1.78V
16
a d
AC Det
0V 4.06V 1.04V
17
b
M_ON
0V 3.28V 1.79V
18
e
Auto_Gnd
Gnd Gnd Gnd
P902 "MAIN" to "Front IR"
Pin Label STBY Run Diode Check
1 IR 2.84V 2.7V 2.63V
2 Gnd Gnd Gnd Gnd
3 Key1 3.3V 3.3V 1.77V
4 Key2 3.3V 3.3V 1.77V
5 LED_RED 3.25V 0V 1.72V
6 Gnd Gnd Gnd Gnd
7 EYE_SCL 3.3V 3.3V 1.72V
8 EYE_SDA 3.3V 3.3V 1.72V
9 Gnd Gnd Gnd Gnd
10 3.3VST 3.3V 3.3V 0.85V
11 n/c n/c n/c n/c
12 n/c n/c n/c n/c
13 Touch_Ver_Check 0.19V 0V 1.69V
14 n/c n/c n/c Open
15 n/c n/c n/c Open
P1404 "MAIN Board" To "Motion Remote Sensor"
Pin Label STBY Run Diode Check
1 3.3V_Normal 0V 3.29V 0.49V
2 Gnd Gnd Gnd Gnd
3 3D_RF_RX 0V 3.29V 1.18V
4 3D_RF_TX 0V 3.29V 1.17V
5 3D_RFModule_Reset 0V 3.1V 2.37V
6 3D_RFModule_DC 0V 0.1V 1.32V
7 3D_RFModule_DD 0V 0.1V 1.34V
8 Gnd Gnd Gnd Gnd
9 3D_RF_GPIO_0 0V 0V 1.26V
10 3D_RF_GPIO_1 0V 0V/3.18V 1.26V
11 3D_RF_GPIO_2 0V 0V 1.26V
*12 3D_L/R_Sync 0V 0V/1.59V Open
*No 3D / With 3D
Note: Pin 12 with 3D Sync 3.48V p/p 60 Hz square wave.
3.3V_ST
5V_ST in (3)
+1.5V_DDR_IN
+5V_ST_EN In in
Serial Flash
DDR
Audio Amp
EDID
EDID
RS232
EDID
DDR
DDR
3D Formatter
+1.8V
+3.3V_3D_A In (3)
Serial Flash
+1.0V
+5V in
+3.3V Reg
+5V in (3)
HDCP EEPROM
EEPROM
+1.26V_VDDC) Reg
+5V_ST_EN In
+5V_ST_EN Switch
+5V_ST In
+3.3V
+5V in
+2.5V_AVDD
+3.3V_AVDD
USB +5V OCP
+5V in
+5V_TU
17V in
+3.3V_AVDD
+5V_ST_EN In
EDID
+1.2V_DE
+3.3V in (3)
Tuner SIF
Tuner CVBS
Hot Swap
B+ Routing
Q501 CTL
HDMI CEC
Hot Swap
EDID WP
RS232 TX
Buffer
Hot
Swap
+3.3V_3D Reg
SDA_3.3V_MOD
SCL_3.3V_MOD
LED_Red
Driver
Serial Flash
WP