LG 42PG3000 Service Manual page 29

COMPONENT
Analog RGB SwitchING
JK701
PPJ209-02
IC700
STMAV340
L700
+5V_GENERAL
MBW3216-501TF
C704 1uF 1B VCC
1 16
0 0 5 : 1 7 I SC1_G
C709 C710
0 . 0 1 u F 22uF
1C OE_N
C700 1uF 50V 16V
DSUB_G 2 15
0 0 6 : 6 S
2B S
C701 1uF 3 14 R719 22
SC1_B RGB_SW
0 0 5 : 1 6 I 0 0 1 : 6 I ; 0 0 1 : 6 Q
2C 1A
C702 1uF 4 13 R720 22
DSUB_B G+ 0 0 1 : 1 5 F
0 0 6 : 7 S
3B 2A
C703 1uF R721
0 0 5 : 1 8 I 5 12 22 B+ 0 0 1 : 1 5 F
SC1_R
C705 1uF 3C 3A
6 11 R722 22 R+ 0 0 1 : 1 5 F
DSUB_R
0 0 6 : 4 S
4B 4A
7 10
4C GND
8 9
R701
0
SIDE 0OHM
L702-*1 0
L703-*1 0 PC AUDIO
JK702
Side AV
PEJ024-01
L704-*1 0
R716
0
SIDE_CVBS_IN
0 0 1 : 1 2 I
JK700 D706 R713
+5V_GENERAL 30V
PPJ218-01 75
[YL]O_SPRING R712
4A
10K
L703
[YL]CONTACT SIDE_CVBS_DET
5A C732
R774 0 0 1 : 2 3 I
C706 22 100pF
D705
0 . 1 u F 50V OPT
[YL]U_CAN 30V
2A
16V
L704
3B [WH]C_LUG R776 10K
SIDE_L_IN
0 0 1 : 9 I
D700 R775 R777
2B [WH]U_CAN C733
30V 12K
470K 100pF
50V
[RD]O_SPRING
4C
L702
R780 10K
[RD]CONTACT SIDE_R_IN
5C
0 0 1 : 9 I
D701 R779 C736 R778
30V 470K 100pF 12K
[RD]U_CAN
2C
50V
+5V_GENERAL
USB
JK707
PSJ018-01
OPT
1 GND_TER R773
2 C_LUG_S1
SIDE_Y_IN
3 C_LUG_L1
CDS3C30GTH R714 0 JK706
R707 C734 0 0 1 : 1 2 I
D704 KJA-UB-4-0004
OPT 100pF
30V 75
4 C_LUG_S2
50V
R711
0
5 C_LUG_L2
SIDE_C_IN
CDS3C30GTH
C735 0 0 1 : 1 2 I
D703 R706
6 NC1 75 OPT 100pF
30V
50V
7 COM1
D707
CDS3C05GTA
8 NO1
11 NO2
10 COM2
R710
1K
9 NC2 S_DET
CDS3C30GTH 0 0 1 : 6 J
+5V_GENERAL
12 D702
30V
R702
SHIELD 10K
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.
MAIN(TOP)
Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
+5V_GENERAL
RS232C
R724
10K
R725
1K
COMP_DET 0 0 1 : 2 2 I
D714
CDS3C05GTA
5.6V C727
OPT 0 . 4 7 u F
25V
2A [GN]1P_CAN
4A [GN]CONTACT
R733
C712
3A [GN]O_SPRING 22
COMP_Y 0 0 1 : 1 4 F
D709 0 . 1 u F
CDS3C30GTH R726 50V
2B [BL]1P_CAN
30V 75
OPT
R734
C713 22
5B [BL]C_LUG_L
COMP_Pb 0 0 1 : 1 4 F
D710 0 . 1 u F
CDS3C30GTH R727 50V
2C [RD]1P_CAN1 30V 75
OPT R735
5C [RD]C_LUG_L C714 22
COMP_Pr 0 0 1 : 1 3 F
+3.3V_VDDP_ST
D711 0 . 1 u F
2D [WH]1P_CAN CDS3C30GTH R728 50V
30V 75
OPT
R737
10K
5D [WH]C_LUG_L
009:6T
COMP_L_IN
D712 R729 C715
2E [RD]1P_CAN2 R755 R756
CDS3C05GTA 470K 100pF R742
4.7K
5.6V 50V 4.7K
12K
OPT
4E [RD]CONTACT
R736 0 0 1 : 2 9 J RS232C_TXD
10K
3E [RD]O_SPRING
COMP_R_IN 009:4AA
D713
CDS3C05GTA C716
R730 R743
5.6V 470K 100pF
12K 0 0 1 : 2 9 J RS232C_RXD
OPT 50V
JK704
KCN-DS-1-0088
E_SPRING
3
T_TERMINAL1
6A
R738
B_TERMINAL1 10K
7A
PC_R_IN 009:6AB
D715
R_SPRING C717 PC D723
4 CDS3C05GTA R731
100pF R740 KDS184
5.6V 470K 12K
50V A2
5 T_SPRING
C
R739 A1
7B B_TERMINAL2 10K
PC_L_IN 009:7T IC701
AT24C02BN-10SU-1.8 C724
T_TERMINAL2 D716 C718
6B 0 . 1 u F
CDS3C05GTA R732 R741 50V
100pF A0 VCC
5.6V 50V 470K 12K 1 8
SHIELD_PLATE R757
8 R754
A1 W P 4.7K
2 7 4.7K
A2 SCL
3 6
GND SDA
4 5
R752
C720 10K
C725 C726
R746 22pF 18pF 18pF
C719
10K 50V 50V 50V R758
22pF
22
50V
D718
+5V_USB_N D717
30V
R744 30V CDS3C30GTH
100
DSUB_VSYNC JP708
0 0 1 : 1 6 J
DSUB_HSYNC JP709
D722
L701 0 0 1 : 1 6 J R745
100 CDS3C05GTA
0 MBW3216-501TF
5.6V
R747
22
006:17B DSUB_B
C711 C721 D719 JP712
R753
10uF OPT CDS3C30GTH
75 30V
16V
JP710
R748
R781 0
22
USB_DM
006:18B DSUB_G
0 0 1 : 2 0 J JP711
C722 D720
R750
R782 0 OPT CDS3C30GTH
USB_DP 75 30V
0 0 1 : 2 0 J
5.6V OPT D728
OPT CDS3C05GTA
5.6V R749
22
006:16B DSUB_R
C723 D721
R751 JK703
OPT CDS3C30GTH
75 30V KCN-DS-1-0089
MAIN(BOTTOM)
+3.3V_VDDP_ST
TUNER
KDS184
D500
C728
C729
0 . 4 7 u F 0 . 4 7 u F
25V
25V
C730
0 . 4 7 u F
25V
TU500
TDFV-G135D1
IC702
FOR TUNER
ANT[5V]
1
MAX3232CDR
BB[CTR]
2
GND_1
3
+B[5V]
4
C504
NC_1
5 0 . 1 u F
C731 50V
RF_AGC
0 . 4 7 u F 6
25V
TP[VT] R501 0
7
OPT
NC_2
D726 8
R764
R761 R766 CDS3C30GTH
100
100 0 30V GND_2
9 C511
47pF
SDA_T
10 50V
OPT
SCL_T
11
D727
CDS3C30GTH
AIF_1 C512
30V 12
47pF
AIF_2 50V
13
NC_3
14
VIDEO R500
15 0
AUDIO
R502
16 0
SIF C502
17
R516
SDA 100pF 50V 47
18
SCL
19
+5V_ST RST R517
20 C503 C507 47
47pF
3.3V 47pF
21 50V
50V
C500
1.8V 0 . 1 u F 50V
22
ERR
23 C501
0 . 1 u F
MCL R503 33
24 50V
D7 R504 33
25
D6 R505 33
26
DDC_SCL/UART_RX 0 0 1 : 2 8 J
D5 R506 33
27
DDC_SDA/UART_TX 0 0 1 : 2 8 J
D4 R507 33
28
D3 R508 33
R760 29
22
D2 R509 33
30
D1 R510 33
D724 31
CDS3C05GTA
D0 R511 33
5.6V
32
VAL R512 33
+5V_GENERAL 33
SYNC R513 33
34
R765
10K 35
R767
ST_DET
D725 1K 0 0 1 : 2 3 I
R762 SHIELD OPT
CDS3C05GTA
0 C509
5.6V 10V
4 . 7 u F
OPT
OPT
C508 10V
4 . 7 u F
PC_SER_DATA
R768 10
003:10D
C739 +3.3V_TU
C737 R770
D729
270pF 82pF 1K
CDS3C30GTH
50V 50V R515
+3.3V_CI
47K
R514 33
R769
TU_ERROR_N 007:11W
R771 10 10K
PC_SER_CLK
C740
C738 003:10O
82pF
D730 270pF
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
CDS3C30GTH 50V 50V
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.
PRINTED CIRCUIT BOARD
OPTION : RF AGC USE ONLY FOR SECAM
C525
10uF
C522
6.3V
0 . 1 u F
50V
C
R545
10K
+5V_TU Q500 B
L500 AGC_SPEED 0 0 1 : 2 7 J
2SC3875S
MBW3216-501TF
E
C519 C520
OPT 22uF 100uF
16V 16V
R518 47
SDA_A_TU 0 0 1 : 2 5 J
R519 47
SCL_A_TU 0 0 1 : 2 5 J
R521 R523 +5V_TU
4.7K 4.7K
SDA_D_TU 001:26F
+5V_TU
SCL_D_TU 001:26F
R522
R520
4.7K 4.7K
+3.3V_TU
C
B Q501
+3.3V_TU 2SC3875S
R557
E
1K
TU_TS_CLK C524 AM_AUDIO
4700pF
C526
TU_TS_DATA[7] R533 50V
R528 4.7K R543 4700pF
100 1K
50V
TU_TS_DATA[6] TU_RESET_N 0 0 1 : 2 8 J
C521
TU_TS_DATA[5]
0 . 1 u F
50V
TU_TS_DATA[4]
OPT
TU_TS_DATA[3]
TU_TS_DATA[2]
+5V_TU
TU_TS_DATA[1]
R544
TU_TS_DATA[0]
470 R556
82
TU_TS_VAL SIF+
E
0 0 1 : 1 0 I
TU_TS_SYNC
B
TU_TS_CLK,TU_TS_DATA[0-7],TU_TS_SYNC,TU_TS_VAL 2SA1504S
R542 Q502
C
+3.3V_TU 4.7K
L502
0 0 7 : 6 C , 0 0 7 : 6 C , 0 0 7 : 1 9 C , 0 0 7 : 1 9 C , 0 0 7 : 1 9 C , 0 0 7 : 1 9 C , 0 0 7 : 1 9 C , 0 0 7 : 1 9 C , 0 0 7 : 1 9 C , 0 0 7 : 7 C , 0 0 7 : 7 C
C518
LEMC3225T-6R8M
100uF
16V
+1.8V_TU
L503
LEMC3225T-6R8M
C517
100uF
16V
Control B/D(TOP)
Control B/D(BOTTOM)
PREAMP B/D(TOP)
PREAMP B/D(BOTTOM)
USB 5V CONTROL
+5V
IC500
TPS2042ADRG4
GND OC1
1 8
IN OUT1
2 7
EN1 OUT2
3 6 +5V_USB_N
C530
EN2 OC2
0 . 1 u F 4 5
50V
R574OPT
USB_CTL 51K
0 0 1 : 2 7 J
+5V
USB_OCD
R575
004:15V
100K
OPT
R564
68K
OPT
OPT
C
R578
20K B Q507
004:17AB USB_OCD
2SC3875S
OPT
E
+5V_TU
L501
MBW3216-501TF
R567
0
R573
Q504
10K
2SA1504S
E OPT
R565 R568
OPT 2.2K
B
C
R577
C
Q506 B 10K
BOOSTER 0 0 1 : 2 8 J
2SC3875S
C529 C531 E
0 . 0 1 u F 100uF
50V 16V
+5V_TU
C527
R559
0 . 0 1 u F
270
50V
TV_CVBS+
R560 R563
0 0 1 : 1 1 I
0 C528
220
270pF
E 50V R569 R570
OPT
270
270
2SA1504S
B
Q503
R558 C R571
0
OPT
SC1_TV_VOUT
005:20H
E
R566
100
2SA1504S
B Q505
C
LGE Internal Use Only