Read LG 50PT490B-SA / 50PT490B-SD (CHASSIS:PB11K) Service Manual online
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
R945
10K
C927
0.1uF
16V
0.1uF
16V
DSUB_DET
+3.3V_ST
MDS62110209
M1
R976
1K
READY
R918
10K
READY
IC901
AT24C02BN-SH-T
3
2
4
1
5
6
7
8
DSUB_HSYNC
TX
P901
SPG09-DB-009
1
2
3
4
5
6
7
8
9
10
R963
0
0
R958
0
0
DSUB_VSYNC
TOUCH_VER_CHK
S7_TXD
DSUB_B-
R908
75
D902
30V
D914
30V
R928
22
+5V_ST
R943
22
22
C917
10pF
50V
10pF
50V
RGB_DDC_SCL
C918
18pF
18pF
50V
EMI_GND3
R900
10K
UART_PM_RX
R923
10K
+3.3V_ST
R936
12K
R939
2.7K
LED_WHITE
C902
0.1uF
50V
0.1uF
50V
GND
GND
L902
PC_RIN
P902
12507WS-15L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
C920
820pF
50V
R977
22
USA
L904
R902
10
10
+3.3V_ST
LED_RED
D912
5.6B
IR JACK
+3.3V
R959
0
0
Q902
2SC3052
2SC3052
LED_WHITE
E
B
C
+3.3V
R942
10K
USA
R974
0
R914
10K
EMI_GND1
C914
0.1uF
16V
0.1uF
16V
READY
UART_RXD_3D
RGB_DDC_SCL
R919
100K
USA
R901
10K
D906
R905
100
R921
10
IR JACK
TX
KEY2
R960
0
0
R907
75
75
RGB_DDC_SDA
R935
12K
R980 0
MDS62110209
M3
D903
30V
R973
0
READY
232C_NO6
C909
0.1uF
50V
0.1uF
50V
R966
0
0
D915
30V
R933
10K
10K
R912
18K
C904
220pF
50V
READY
D907
D905
JK900
PEJ027-01
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
R934
0
R927
470K
470K
C908
220pF
50V
READY
220pF
50V
READY
R954
0
0
RGB_DDC_SCL
R949
0
0
READY
C923
10pF
READY
D910
5.6V
SUB_SDA
R904
100
R917 1K
D909
30V
READY
MDS62110209
M2
IR
S7_RXD
R948
4.7K
4.7K
R909
10K
R975
1K
READY
L903
IR
R957
0
0
UART_PM_TX
L900
C919
18pF
50V
C916
10pF
50V
10pF
50V
R951
0
0
232C_NO4
C900
0.1uF
0.1uF
16V
EMI_GND4
R953
0
0
R920
100K
USA
EDID_WP
R952
0
0
P906
12507WR-03L
FOR NON_RGB_DEBUG
1
2
3
4
C915
READY
+3.3V_ST
R962
0
0
C905
220pF
50V
READY
220pF
50V
READY
JK901
PEJ027-01
EAG60841801
IR JACK
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
R911
10K
C933
10pF
LED_WHITE
DSUB_R-
D904
R916
22
22
R922
0
NON_IR JACK
C910
0.1uF
50V
R978
22
READY
R946
22
22
R926
470K
470K
+5V_ST
R932
100
READY
+5V_ST
R937
0
0
READY
RGB_DDC_SDA
R910
10K
READY
C928
1uF
10V
1uF
10V
R940
4.7K
4.7K
LED_WHITE
IC900
MAX3232CDR
3
C
1
-
2
V
+
4
C
2
+
1
C
1
+
6
V
-
5
C
2
-
7
D
O
U
T
2
8
R
I
N
2
9
R
O
U
T
2
1
0
D
I
N
2
1
1
D
I
N
1
1
2
R
O
U
T
1
1
3
R
I
N
1
1
4
D
O
U
T
1
1
5
G
N
D
1
6
V
C
C
R903
10
10
R944
22
22
C907
0.1uF
50V
0.1uF
50V
R950
2.7K
R931
10K
10K
R981
22
READY
D908
R930
100
READY
R924
10K
10K
R982
22
READY
C926
10pF
D900
C932
0.1uF
16V
0.1uF
16V
LED_WHITE
L905
C925
4700pF
R906
75
EMI_GND2
232C_NO4
LED_WHITE
R956
0
0
R955
0
0
232C_NO6
UART_TXD_3D
D911
5.6V
+5V
DSUB_G-
RGB_DDC_SDA
Q901
2SC3052
2SC3052
E
B
C
DSUB_B
Q900
2SC3052
USA
E
B
C
R915
22
22
R941
10K
C924
10pF
READY
PC_SER_CLK
C903
220pF
50V
READY
+3.3V_ST
PC_SER_CLK
PC_SER_DATA
PC_SER_DATA
+3.3V_ST
C901
270pF
50V
READY
270pF
50V
READY
R947
22
22
P900
SPG09-DB-010
SPG09-DB-010
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
DSUB_R
+3.3V_ST
R929
22
C906
220pF
50V
READY
220pF
50V
READY
KEY1
L901
LED_WHITE
C911
0.1uF
50V
0.1uF
50V
R961
0
0
DSUB_G
SUB_SCL
R938
10K
C921
820pF
820pF
50V
PC_LIN
C922
0.1uF
0.1uF
R979
22
READY
C930
10pF
10pF
D901
9 14
EAX63425902(5)
RGB/RS232/PC/USA IR
$0.179
ROM DOWNLOAD FOR PDP
PC AUDIO
SUB Board I/F
RS232C
For RGB Debugging
RGB
USA IR JACK
SCREW GND Seperate
SUB IR
IR Wafer/ SIDE_HDMI/USB GASKET GND
2010.10.21
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