LG 42PG3000-ZA (CHASSIS:PD83A) Service Manual ▷ View 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.
100
R764
4.7K
R756
75
R750
CDS3C05GTA
5.6V
OPT
D722
10K
R746
CDS3C05GTA
5.6V
OPT
D716
CDS3C05GTA
5.6V
OPT
D712
COMP_Y
0 0 1 : 1 4 F
COMP_Pr 0 0 1 : 1 3 F
0
R766
COMP_Pb 0 0 1 : 1 4 F
75
R728
DSUB_VSYNC
0 0 1 : 1 6 J
0 . 4 7 u F
25V
C730
DSUB_HSYNC
0 0 1 : 1 6 J
22pF
50V
C720
AT24C02BN-10SU-1.8
IC701
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
75
R726
22pF
50V
C719
OPT
C723
+5V_ST
4.7K
R755
RS232C_TXD
0 0 1 : 2 9 J
+3.3V_VDDP_ST
100pF
50V
C718
22
R735
470K
R730
+3.3V_VDDP_ST
22
R747
470K
R729
CDS3C05GTA
5.6V
OPT
D724
0 . 1 u F
50V
C724
100pF
50V
C717
0 . 4 7 u F
25V
C729
22
R734
PEJ024-01
JK702
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
KDS184
D723
A2
C
A1
10K
R752
COMP_R_IN
009:4AA
0 . 4 7 u F
25V
C727
100pF
50V
C716
22
R748
CDS3C05GTA
5.6V
OPT
OPT
D713
PC_R_IN 009:6AB
RS232C_RXD
0 0 1 : 2 9 J
100pF
50V
C715
75
R753
22
R749
COMP_L_IN
0 0 9 : 6 T
100
R761
CDS3C05GTA
5.6V
OPT
D715
DSUB_R
006:16B
DDC_SCL/UART_RX
0 0 1 : 2 8 J
CDS3C30GTH
30V
OPT
D727
CDS3C30GTH
30V
OPT
D726
470K
R731
0 . 4 7 u F
25V
C728
470K
R732
PC_L_IN 0 0 9 : 7 T
75
R751
18pF
50V
C725
18pF
50V
C726
75
R727
DSUB_G
006:18B
OPT
C722
22
R733
OPT
C721
DSUB_B
006:17B
0 . 4 7 u F
25V
C731
DDC_SDA/UART_TX
0 0 1 : 2 8 J
100
R744
100
R745
CDS3C30GTH
30V
D718
30V
D717
1uF
C703
+5V_GENERAL
RGB_SW
0 0 1 : 6 I ; 0 0 1 : 6 Q
SC1_R
0 0 5 : 1 8 I
B+ 0 0 1 : 1 5 F
1uF
C700
1uF
C702
DSUB_G
0 0 6 : 6 S
1uF
C701
SC1_B
0 0 5 : 1 6 I
R+ 0 0 1 : 1 5 F
DSUB_B
0 0 6 : 7 S
1uF
C704
SC1_G
0 0 5 : 1 7 I
1uF
C705
0 . 0 1 u F
50V
C709
G+ 0 0 1 : 1 5 F
DSUB_R
0 0 6 : 4 S
10K
R737
10K
R736
10K
R739
10K
R738
12K
R741
12K
R742
12K
R740
12K
R743
22
R722
22
R720
22
R721
22
R719
CDS3C05GTA
5.6V
OPT
D725
ST_DET
0 0 1 : 2 3 I
0
R762
OPT
22
R760
22
R758
4.7K
R757
4.7K
R754
0 . 1 u F
50V
C714
0 . 1 u F
50V
C713
0 . 1 u F
50V
C712
1K
R725
CDS3C05GTA
5.6V
OPT
D714
COMP_DET 0 0 1 : 2 2 I
+5V_GENERAL
10K
R765
1K
R767
JP711
JP710
JP712
JP708
JP709
CDS3C30GTH
30V
D719
CDS3C30GTH
30V
D720
CDS3C30GTH
30V
D721
CDS3C30GTH
30V
D709
OPT
CDS3C30GTH
30V
OPT
D710
CDS3C30GTH
30V
OPT
D711
STMAV340
IC700
3
2B
2
1C
4
2C
1
1B
6
3C
5
3B
7
4B
8
4C
9
GND
10
4A
11
3A
12
2A
13
1A
14
S
15
OE_N
16
VCC
0
R701
SIDE_CVBS_DET
0 0 1 : 2 3 I
30V
D700
CDS3C30GTH
30V
D704
SIDE_C_IN
0 0 1 : 1 2 I
CDS3C30GTH
30V
D702
75
R706
75
R707
30V
D705
SIDE_L_IN
0 0 1 : 9 I
S_DET
0 0 1 : 6 J
+5V_GENERAL
0 . 1 u F
16V
16V
C706
CDS3C30GTH
30V
D703
SIDE_R_IN
0 0 1 : 9 I
30V
D701
SIDE_Y_IN
0 0 1 : 1 2 I
SIDE_CVBS_IN
0 0 1 : 1 2 I
0
R716
75
R713
30V
D706
+5V_GENERAL
+5V_GENERAL
L703
22
R774
100pF
50V
50V
C732
OPT
10K
R712
10K
R724
L704
470K
R775
100pF
50V
50V
C733
10K
R776
12K
R777
100pF
50V
50V
C734
OPT
100pF
50V
50V
C735
OPT
1K
R710
10K
R702
1K
R770
10K
R769
CDS3C30GTH
D729
PC_SER_CLK
003:10O
PC_SER_DATA
003:10D
+3.3V_CI
CDS3C30GTH
D730
CDS3C05GTA
5.6V
5.6V
OPT
D728
USB_DP
0 0 1 : 2 0 J
USB_DM
0 0 1 : 2 0 J
0 0 1 : 2 0 J
10uF
16V
16V
C711
+5V_USB_N
CDS3C05GTA
5.6V
OPT
D707
22uF
16V
C710
0
R773
OPT
+5V_GENERAL
470K
R779
100pF
50V
50V
C736
L702
12K
R778
10K
R780
0
R781
0
R782
0
R714
0
R711
P P J 2 1 8 - 0 1
JK700
5C
[RD]CONTACT
2C
[RD]U_CAN
4C
[RD]O_SPRING
2B
[WH]U_CAN
3B
[WH]C_LUG
2A
[YL]U_CAN
5A
[YL]CONTACT
4A
[YL]O_SPRING
USB DOWN STREAM
KJA-UB-4-0004
JK706
1
2
3
4
5
0
SIDE 0OHM
L702-*1
0
L703-*1
0
L704-*1
P S J 0 1 8 - 0 1
JK707
1
GND_TER
2
C_LUG_S1
3
C_LUG_L1
6
NC1
7
COM1
8
NO1
9
NC2
10
COM2
11
NO2
12
SHIELD
4
C_LUG_S2
5
C_LUG_L2
P P J 2 0 9 - 0 2
JK701
4A
[GN]CONTACT
2A
[GN]1P_CAN
3A
[GN]O_SPRING
2B
[BL]1P_CAN
5B
[BL]C_LUG_L
2C
[RD]1P_CAN1
5C
[RD]C_LUG_L
2D
[WH]1P_CAN
5D
[WH]C_LUG_L
2E
[RD]1P_CAN2
4E
[RD]CONTACT
3E
[RD]O_SPRING
KCN-DS-1-0089
JK703
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
MBW3216-501TF
L700
MBW3216-501TF
L701
KCN-DS-1-0088
JK704
1
2
3
4
5
6
7
8
9
10
MAX3232CDR
IC702
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
270pF
50V
50V
C737
270pF
50V
50V
C738
82pF
50V
50V
C739
82pF
50V
50V
C740
10
R768
10
R771
COMPONENT
PC
Analog RGB SwitchING
RS232C
PC AUDIO
Side AV
USB
+3.3V_TU
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.
33
R503
33
R514
33
R504
33
R505
33
R506
33
R507
33
R508
33
R509
33
R510
33
R511
33
R512
33
R513
47pF
50V
50V
C507
47pF
50V
50V
C503
SDA_D_TU 001:26F
SCL_D_TU 001:26F
TU_ERROR_N 007:11W
+3.3V_TU
100uF
16V
16V
C520
0 . 1 u F
50V
50V
C504
+5V_TU
0 . 1 u F
50V
50V
C530
BOOSTER 0 0 1 : 2 8 J
+5V_TU
2.2K
R568
10K
R577
100uF
16V
16V
C531
0 . 0 1 u F
50V
50V
C529
R565
OPT
OPT
2SA1504S
Q504
E
B
C
2SC3875S
Q506
E
B
C
0
R501
AGC_SPEED 0 0 1 : 2 7 J
10K
R545
2SC3875S
Q500
E
B
C
0
R500
R558
OPT
2SA1504S
Q503
E
B
C
0 . 0 1 u F
50V
50V
C527
270
R559
220
R560
2SA1504S
Q505
E
B
C
0
R571
270pF
50V
50V
C528
OPT
TV_CVBS+
0 0 1 : 1 1 I
SC1_TV_VOUT
005:20H
+5V_TU
100pF 50V
C502
4.7K
R542
2SA1504S
Q502
E
B
C
470
R544
82
R556
SIF+
0 0 1 : 1 0 I
+5V_TU
47pF
50V
50V
C512
47pF
50V
50V
C511
47
R519
47
R518
+3.3V_TU
4.7K
R521
4.7K
R523
+5V_TU
0 . 1 u F
50V
50V
C501
0 . 1 u F50V
C500
+1.8V_TU
100uF
16V
C518
100uF
16V
C517
SCL_A_TU 0 0 1 : 2 5 J
SDA_A_TU
0 0 1 : 2 5 J
10K
R573
OPT
+5V_TU
0
R502
4700pF
50V
50V
C524
1K
R543
2SC3875S
Q501
E
B
C
1K
R557
4700pF
50V
50V
C526
TU_RESET_N 0 0 1 : 2 8 J
100
R528
+3.3V_TU
4.7K
R533
0 . 1 u F
50V
50V
C521
OPT
0
R567
TU_TS_CLK,TU_TS_DATA[0-7],TU_TS_SYNC,TU_TS_VAL
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
TPS2042ADRG4
IC500
3
EN1
2
IN
4
EN2
1
GND
5
OC2
6
OUT2
7
OUT1
8
OC1
USB_CTL
0 0 1 : 2 7 J
USB_OCD
004:15V
51K
R574OPT
100K
R575
OPT
100
R566
22uF
16V
16V
C519
OPT
4 . 7 u F
10V
C509
OPT
4 . 7 u F
10V
C508
OPT
47K
R515
4.7K
R522
4.7K
R520
47
R517
47
R516
2SC3875S
Q507
OPT
E
B
C
USB_OCD
004:17AB
68K
R564
OPT
LEMC3225T-6R8M
L503
LEMC3225T-6R8M
L502
0
R563
+5V_USB_N
0 . 1 u F
50V
50V
C522
TDFV-G135D1
TU500
FOR TUNER
1
ANT[5V]
2
BB[CTR]
3
GND_1
4
+B[5V]
5
NC_1
6
RF_AGC
7
TP[VT]
8
NC_2
9
GND_2
10
SDA_T
11
SCL_T
12
AIF_1
13
AIF_2
14
NC_3
15
VIDEO
16
AUDIO
17
SIF
18
SDA
19
SCL
20
RST
21
3.3V
22
1.8V
23
ERR
24
MCL
25
D7
26
D6
27
D5
28
D4
29
D3
30
D2
31
D1
35
SHIELD
32
D0
33
VAL
34
SYNC
MBW3216-501TF
L500
MBW3216-501TF
L501
20K
R578
OPT
KDS184
D500
+5V
+5V
270
R570
270
R569
10uF
6.3V
6.3V
C525
TU_TS_SYNC
TU_TS_VAL
TU_TS_DATA[0]
TU_TS_DATA[1]
TU_TS_DATA[2]
TU_TS_DATA[3]
TU_TS_DATA[4]
TU_TS_DATA[5]
TU_TS_DATA[6]
TU_TS_DATA[7]
TU_TS_CLK
OPTION : RF AGC
USE ONLY FOR SECAM
AM_AUDIO
TUNER
USB 5V CONTROL
MAIN(TOP)
Control B/D(BOTTOM)
Control B/D(TOP)
MAIN(BOTTOM)
PREAMP B/D(BOTTOM)
PREAMP B/D(TOP)
PRINTED CIRCUIT BOARD
Apr
., 2008
P/NO : MFL42222702
Apr
., 2008
P/NO : MFL42222702
Apr
., 2008
P/NO : MFL42222702