LG 50PK550 Service Manual page 31

+5V_VGA
JK1001
SPG09-DB-010
C1001
0.1uF
16V
RED_GND
6
GND_2
1
11
RED
GREEN_GND
7
DDC_DATA
2 12
GREEN
BLUE_GND
8
H_SYNC
3 13
BLUE
NC
9
V_SYNC
4 14
GND_1
SYNC_GND
10
DDC_CLOCK
5 15
DDC_GND
16
SHILED
GND
ROM DOWNLOAD FOR PDP
R1003
10
C1003 C1004
270pF 220pF
50V 50V
READY READY
R1001
10
C1000 C1002
D1000 D1001
270pF 220pF
50V 50V
READY READY
RS232C
C1007
0.1uF
50V
+3.3V_ST
READY
R1037
10
PC_SER_CLK
R1038 READY
10
PC_SER_DATA
R1002 R1004
D1014 D1015 4.7K 4.7K
READY READY
DBG_TX
DBG_RX
C1005 220pF
C1006 220pF
JK1002
SPG09-DB-009
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.
Copyright © 2010 LG Electronics Inc. All rights reserved.
Only for training and service purposes
R1018
22
C1015
4.7pF
R1017
22
+3.3V_AVDD
C1014
4.7pF
R1019
1K
C1013
0.1uF
16V
R1015
22
C1012
4.7pF
R1014
1K
R1013
1K
R1010 R1011
R1007 R1012
R1005
4.7K
4.7K
75 75
75
PC_SER_CLK
PC_SER_DATA
PDP_SCL
DISP_EN
PC_SER_DATA
PDP_SDA
PC_SER_CLK
RXOCK-
RXOCK+
+3.3V_ST
C1008
0.1uF C1009
50V 0.1uF
50V
C1010
0.1uF
50V
IC1000
$0.179
MAX3232CDR
RXECK-
C1011
0.1uF
RXECK+
50V
R1039 0 READY
SUB_SCL
0 READY
R1040
SUB_SDA
C1031 C1030
10pF 10pF
50V 50V
R1006
READY READY
100
D1005 READY
30V
D1006 READY
50V
30V
50V
MOD_ROM_TX
MOD_ROM_RX
DSUB_R
DDC_SDA/UART_TX
DSUB_G
DSUB_DET
DSUB_B
DSUB_HSYNC
DSUB_VSYNC
DDC_SCL/UART_RX
LVDS FFC WAFER
52
51
50
49
48
MOD_ROM_RX
47
46
R442
27K 45
READY
44
100 R407
PDP_SCL
43
42 RXO0-
41
RXO1-
RXO0-
40
RXO2-
RXO0+
39
RXO1-
38 RXOCK-
RXO1+
37
RXO3-
RXO2-
36
RXO2+ RXO4-
35
PC_SER_CLK
34
100 R403
33
DISP_EN
HD
R404
32
27K R402
0
READY
31
READY
RXO3-
30
RXO3+
29
RXO4-
28
RXO4+
FHD
27
26
25
RXE0-
24
RXE0+
23
RXE1-
22
RXE1+
21
RXE2-
20
RXE2+
19
18
17
16
15
RXE3-
14
RXE3+
13
RXE4-
12
RXE4+
11
10
9
8
7
6
5
KEY_BUZZER
4
3
2
1
TF05-51S
P403
IC1001
AT24C02BN-10SU-1.8
PC AUDIO
JK1000
PEJ027-01
LVDS
P401
SMAW200-H26S1
1 2
3 4
MOD_ROM_TX
5 6
7 8
9 10
PDP_SDA
100 R401
11 12
RXO0+
13 14
RXO1+
15 16
RXO2+
HD
17 18
RXOCK+
19 20
RXO3+
21 22
RXO4+
23 24
PC_SER_DATA
25 26
27
IR
+3.3V_ST
R408 R409
10K 10K
KEY1
KEY2
LED_R
SUB_SCL
SUB_SDA
+3.3V_ST
+3.3V +5V
+3.3V_ST
LED_B
BU400
+3.3V
PKM13EPY-4002-B0
1
READY
2
C
R1036
22
B Q1001
2SC3052
READY
E
MSD3368EV Platform
RGB,RS232,LVDS
+5V_VGA +5V_ST
ENKMC2838-T112
D1012
C1022
R1029 0.1uF
1 8 R1024
4.7K
4.7K
R1023
2 7
100
R1032
0
3 6
DDC_SCL/UART_RX
R1033
0
4 5
DDC_SDA/UART_TX
C1018 C1021
18pF 18pF
ISP_RXD
50V 50V
ISP_TXD
E_SPRING
3
T_TERMINAL1
6A
B_TERMINAL1
7A
PC_RIN
R1028
D1010
R_SPRING C1020
10K
4
100pF
5.6V
R1027
50V R1022
12K
T_SPRING 470K
5
B_TERMINAL2
7B
PC_LIN
R1026
C1019
T_TERMINAL2 D1011
6B 10K
100pF
5.6V 50V R1021
R1025
470K
12K
SUB Board I/F
P402
12507WS-12L
L405
MLB-201209-0120P-N2
1
C407
C403
10pF
680pF
2
L404
MLB-201209-0120P-N2
3
C402
L403
C406
10pF MLB-201209-0120P-N2
10pF
4
C401
L401
10pF C405
MLB-201209-0120P-N2
10pF 5
C404
10pF
C1027
6
10pF
READY
R1035
22
7
R1034
22
C1029
8
10pF
READY
C1028
9
10pF
READY
R405
0
10
C400
10uF
6.3V 11
C1025
L400
MLB-201209-0120P-N2 10uF
12
6.3V
C408
10pF
13
C1026
10pF
READY
9
10
LGE Internal Use Only