LG 32LD540 / 32LD540 / 32LD541 / 32LD570 / 32LD575 (CHASSIS:LD01B) Service Manual ▷ View online
- 18 -
EXPLODED VIEW
300
200
530
810
400
510
120
500
900
910
800
LV
1
LV
2
540
521
A4
A2
A10
A21
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
- 20 -
SCHEMATIC DIAGRAMME
32/42LD570-ZB
1
1
2
2
3
3
4
4
5
5
6
6
A
A
B
B
C
C
D
D
Near By Tuner
PIN1
PIN5
PIN28
PIN46
PIN9
PIN48
PIN31
PIN12
All location are from 881 to 900
32/42LD570-ZB
SDAT0
SCLT0
SDAT0
SCLT0
SCLT0
TT_DO0
TT_PSYNC
TT_DEN
TT_OCLK
TT_DEN
TT_PSYNC
TT_PSYNC
TT_OCLK
TT_DO0
IF_AGC0
VDDA_1V2
VDDD_3V3
VDDDC_1V2
VDDA_3V3
VDDDC_1V2
VDDD_3V3
VDDD_1V2
VDDDC_1V2
VDDD_3V3
VDDA_1V2
VDDD_3V3
VDDD_1V2
VDDDC_1V2
VDDA_3V3
VDDD_3V3
1V2_DEMOD
3V3_NOR
VDDD_3V3
OFDM_AGC
[21,27]
CH_TER_RESET [11]
DTT_IF_NARROW+
[27]
DTT_IF_NARROW-
[27]
TUNER0_SCL
[27]
TUNER0_SDA
[27]
I2C1_SCL [13,27,29,30,32]
I2C1_SDA [13,27,29,30,32]
HS1_D0 [11]
HS1_CLK [11]
HS1_VALID [11]
HS1_SYNC
HS1_CLK [11]
HS1_VALID [11]
HS1_SYNC
[11]
L881
OPEN-CIC10P300NC
OPEN-CIC10P300NC
L881
OPEN-CIC10P300NC
OPEN-CIC10P300NC
C893
OPEN-104p/16V/1005
C893
OPEN-104p/16V/1005
R891
OPEN-470/1005
R891
OPEN-470/1005
C888
OPEN-104p/16V/1005
C888
OPEN-104p/16V/1005
R895
OPEN-183/1005
R895
OPEN-183/1005
R896
OPEN-103/1005
R896
OPEN-103/1005
L885
OPEN-CIC10P300NC
OPEN-CIC10P300NC
L885
OPEN-CIC10P300NC
OPEN-CIC10P300NC
U881
OPEN-TDA10048HN
U881
OPEN-TDA10048HN
VDDA_3V3
1
VIM
2
VIP
3
VSSA_3V3
4
VDDD_3V3
5
VSSA_3V3
6
XIN
7
XOUT
8
VDDA_1V2
9
VSSA_1V2
10
VDDA_1V2
11
VDDDC_1V2
12
VSSDC
13
VSSD
14
SDA_TUN
15
SCL_TUN
16
PSYNC/S_PSYNC
17
DEN/S_DEN
18
O
C
LK/
S
_O
CLK
19
DO0/S_UCOR
20
DO1/S_DO
21
DO2/GPIO1
22
DO3/GPIO2
23
DO4/GPIO3
24
DO5
25
DO6
26
DO7
27
VDDD_3V3
28
VSSD
29
VSSDC
30
VDDDC_1V2
31
GPIO0
32
SADDR
33
SDA
34
SCL
35
TRST_N
36
TM
S
37
TDI
38
TCK
39
TDO
40
CLR_N
41
AGC_IF
42
AGC_TUN
43
VSSDC
44
VDDDC_1V2
45
VDDD_3V3
46
VSSD
47
VDDD_1V2
48
GND
49
C889
OPEN-104p/16V/1005
C889
OPEN-104p/16V/1005
R894
OPEN-183/1005
R894
OPEN-183/1005
C890
OPEN-104p/16V/1005
C890
OPEN-104p/16V/1005
Y881
OPEN-16.000Mhz/20pF/+-30PPM/SMD
Y881
OPEN-16.000Mhz/20pF/+-30PPM/SMD
C884
OPEN-104p/16V/1005
C884
OPEN-104p/16V/1005
C891
OPEN-104p/16V/1005
C891
OPEN-104p/16V/1005
C894
OPEN-104p/16V/1005
C894
OPEN-104p/16V/1005
C885
OPEN-330p/50V/1005
C885
OPEN-330p/50V/1005
R883
OPEN-102/1005
OPEN-102/1005
R883
OPEN-102/1005
OPEN-102/1005
R897
OPEN-103/1005
R897
OPEN-103/1005
C887
OPEN-104p/16V/1005
C887
OPEN-104p/16V/1005
R893
OPEN-470/1005
R893
OPEN-470/1005
TP881
TP06
TP06
TP881
TP06
TP06
1
C882
OPEN-104p/16V/1005
C882
OPEN-104p/16V/1005
L882
OPEN-CIC10P300NC
OPEN-CIC10P300NC
L882
OPEN-CIC10P300NC
OPEN-CIC10P300NC
R889
OPEN-470/1005
R889
OPEN-470/1005
R892
OPEN-000/1005
R892
OPEN-000/1005
R890
OPEN-000/1005
R890
OPEN-000/1005
C886
OPEN-330p/50V/1005
C886
OPEN-330p/50V/1005
C881
OPEN-104p/16V/1005
C881
OPEN-104p/16V/1005
R888
OPEN-470/1005
R888
OPEN-470/1005
R887
OPEN-330/1005
R887
OPEN-330/1005
L884
OPEN-CIC10P300NC
OPEN-CIC10P300NC
L884
OPEN-CIC10P300NC
OPEN-CIC10P300NC
C892
OPEN-104p/16V/1005
C892
OPEN-104p/16V/1005
R886
OPEN-330/1005
R886
OPEN-330/1005
C883
OPEN-104p/16V/1005
C883
OPEN-104p/16V/1005
L883
OPEN-CIC10P300NC
OPEN-CIC10P300NC
L883
OPEN-CIC10P300NC
OPEN-CIC10P300NC
42LD570 MAIN Schematic REV.: 1.1
HMX2010 LCD MAIN B/D REV.: 1.1
32/42LD570-ZB
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
GND_D
DGND
All location are from 01 to 50
32/42LD570-ZB
SMPS_ON
BL_EN_O
ANA_DIM
BL_EN_O
SMPS_ON
ANA_DIM
SMPS_ON
LED_B
GND_A
3V4_STB
3V4_STB
12V_SMPS
20V_SMPS
3V4_STB
3V4_STB
3V4
3V4_STB
3V3_BCM3556
3V3_BCM3556
3V3_BCM3556
12V_SMPS
12V_SMPS
5V
PWM1_DIM [11]
PWM_BUZZ
[6]
ATM_SCL [6]
ATM_SDA_IN [6]
ATM_SDA_OUT [6]
PANEL_ER [11]
STBY_EN
[6]
A_DIM
[11]
BLT_EN
[11]
AC_DETECT [6,36,38]
KEY_ADC1
[6]
KEY_ADC2
[6]
IR_IN
[6]
CDS_OUT [6]
LED_R
[6]
DC_EN [2,3,5]
LED_B
[6]
R12
100/1005
R12
100/1005
R42
472/1005
R42
472/1005
TP1
PCB_TP10
TP1
PCB_TP10
1
TP3
PCB_TP10
TP3
PCB_TP10
1
TP6
PCB_TP10
TP6
PCB_TP10
1
TP10
PCB_TP10
TP10
PCB_TP10
1
C17
225p/16V
C17
225p/16V
C2
104p/50V
C2
104p/50V
Q1
MMBT4403
Q1
MMBT4403
1
2
3
R31
101/1005
R31
101/1005
TP13
PCB_TP10
TP13
PCB_TP10
1
C3
104p/50V
C3
104p/50V
Q5
MMBT4401
MMBT4401
Q5
MMBT4401
MMBT4401
1
2
3
R21
102/1005
102/1005
R21
102/1005
102/1005
R20
103/1005
103/1005
R20
103/1005
103/1005
R25
103/1005
R25
103/1005
R5
102/1005
R5
102/1005
R43
472/1005
R43
472/1005
R28
152/1005
R28
152/1005
R9
472/1005
472/1005
R9
472/1005
472/1005
U2
KIA7042AF
KIA7042AF
U2
KIA7042AF
KIA7042AF
VCC
1
GND
2
OUT
3
GND
4
TP11
PCB_TP10
TP11
PCB_TP10
1
R33
103/1005
R33
103/1005
R13
102/1005
R13
102/1005
D2
ZMMC6V2
D2
ZMMC6V2
1
2
Q4
MMBT4401
MMBT4401
Q4
MMBT4401
MMBT4401
1
2
3
D1
ZMMC6V2
D1
ZMMC6V2
1
2
TP7
PCB_TP10
TP7
PCB_TP10
1
R40
101/1005
R40
101/1005
R23
103/1005
103/1005
R23
103/1005
103/1005
C6
104p/50V
C6
104p/50V
R36
203/1005
R36
203/1005
R4
103/1005
R4
103/1005
TP5
PCB_TP10
TP5
PCB_TP10
1
L2
OPEN-CIC41P600AE
OPEN-CIC41P600AE
L2
OPEN-CIC41P600AE
OPEN-CIC41P600AE
2mm
JP1
FW20020-24
FW20020-24
2mm
JP1
FW20020-24
FW20020-24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
25
R17
OPEN-101/1005
R17
OPEN-101/1005
TP15
PCB_TP10
PCB_TP10
TP15
PCB_TP10
PCB_TP10
1
R35
103/1005
R35
103/1005
Q3
MMBT4401
MMBT4401
Q3
MMBT4401
MMBT4401
1
2
3
1.
25mm
JP2
12505WR-15A
12505WR-15A
1.
25mm
JP2
12505WR-15A
12505WR-15A
11
10
9
8
7
6
5
4
3
2
1
12
13
14
15
13
14
15
16
17
R14
103/1005
103/1005
R14
103/1005
103/1005
C16
104p/16V/1005
C16
104p/16V/1005
R22
103/1005
R22
103/1005
TP2
PCB_TP10
TP2
PCB_TP10
1
R18
152/1005
R18
152/1005
TP9
PCB_TP10
TP9
PCB_TP10
1
TP12
PCB_TP10
TP12
PCB_TP10
1
R34
OPEN-121/3216
R34
OPEN-121/3216
U1
FDS6675BZ
FDS6675BZ
U1
FDS6675BZ
FDS6675BZ
S1
1
S2
2
S3
3
G
4
D1
5
D2
6
D3
7
D4
8
C9
105p/16V/1005
C9
105p/16V/1005
R11
100/1005
R11
100/1005
R39
000/1005
R39
000/1005
TP8
PCB_TP10
TP8
PCB_TP10
1
R8
103/1005
R8
103/1005
C10
104p/16V/1005
C10
104p/16V/1005
TP4
PCB_TP10
TP4
PCB_TP10
1
C4
OPEN-100uF/16V/MVK/S
C4
OPEN-100uF/16V/MVK/S
TP14
PCB_TP10
PCB_TP10
TP14
PCB_TP10
PCB_TP10
1
R10
472/1005
472/1005
R10
472/1005
472/1005
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
MAX: 3A
All location are from 50 to 100
MAX 1.5A
Max 3A
MAX: 3A
32/42LD570-ZB
A2V5_BCM3556
A1V2_BCM3556
A3V3_BCM3556
D3V3_BCM3556
D1V2_BCM3556
1V2_BCM3556
3V3_BCM3556
3V3_BCM3556
12V_SMPS
3V3_BCM3556
+1V8
D1V8_DDR
DDR_VREF0
DDR_VREF1
DDR_VTT
+1V8
A2V5_BCM3556
DC_EN
[1,3,5]
DC_EN
[1,3,5]
INSTANT_BOOT
[6]
C62
106p/10V/2012
C62
106p/10V/2012
C87
104p/16V/1005
C87
104p/16V/1005
C70
106p/10V/2012
C70
106p/10V/2012
L57
CIS41P600AE
CIS41P600AE
L57
CIS41P600AE
CIS41P600AE
R70
103/1005
R70
103/1005
U51
AOZ1073AIL/SO-8L
AOZ1073AIL/SO-8L
U51
AOZ1073AIL/SO-8L
AOZ1073AIL/SO-8L
PGND
1
VIN
2
AGND
3
FB
4
LX
8
LX
7
EN
6
COMP
5
R68
104/F/1005
104/F/1005
R68
104/F/1005
104/F/1005
TP58
TP10
TP58
TP58
TP10
1
U55
RT9183H-PM5
RT9183H-PM5
U55
RT9183H-PM5
RT9183H-PM5
VI
2
VO
4
GND
3
SEN
5
SD
1
GND
6
C68
332p/50V/1005
C68
332p/50V/1005
R69
103/F/1005
R69
103/F/1005
C61
106p/16V/2012
C61
106p/16V/2012
TP53
TP10
TP53
TP53
TP10
1
C79
122p/50V/1005
C79
122p/50V/1005
R62
OPEN-104/F/1005
OPEN-104/F/1005
R62
OPEN-104/F/1005
OPEN-104/F/1005
C53
106p/10V/2012
C53
106p/10V/2012
C67
106p/10V/2012
C67
106p/10V/2012
R64
3093/F/1005
3093/F/1005
R64
3093/F/1005
3093/F/1005
C60
106p/16V/2012
C60
106p/16V/2012
C73
102p/50V/1005
C73
102p/50V/1005
L55
CIC10P300NC
CIC10P300NC
L55
CIC10P300NC
CIC10P300NC
U50
AOZ1073AIL/SO-8L
AOZ1073AIL/SO-8L
U50
AOZ1073AIL/SO-8L
AOZ1073AIL/SO-8L
PGND
1
VIN
2
AGND
3
FB
4
LX
8
LX
7
EN
6
COMP
5
TP54
TP10
TP54
TP54
TP10
1
R65
753/F/1005
753/F/1005
R65
753/F/1005
753/F/1005
C63
106p/10V/2012
C63
106p/10V/2012
C80
OPEN-106p/10V/2012
C80
OPEN-106p/10V/2012
C90
100uF/16V/MVK/S
C90
100uF/16V/MVK/S
L59
OPEN-CIC10P300NC
L59
OPEN-CIC10P300NC
C78
220p/50V/1005
C78
220p/50V/1005
TP50
TP10
TP50
TP50
TP10
1
TP51
TP10
TP51
TP51
TP10
1
TP52
TP10
TP52
TP52
TP10
1
C59
106p/10V/2012
C59
106p/10V/2012
C69
106p/10V/2012
C69
106p/10V/2012
R67
475/1005
R67
475/1005
R53
303/F/1005
R53
303/F/1005
C74
226P/6.3V/2012
C74
226P/6.3V/2012
L54
SPC10040-4R7M
SPC10040-4R7M
L54
SPC10040-4R7M
SPC10040-4R7M
C86
123p/2012
C86
123p/2012
R51
153/1005
R51
153/1005
R71
472/F/1005
R71
472/F/1005
C57
106p/10V/2012
C57
106p/10V/2012
R66
513/F/1005
513/F/1005
R66
513/F/1005
513/F/1005
C65
106p/10V/2012
C65
106p/10V/2012
C54
106p/10V/2012
C54
106p/10V/2012
C82
104p/16V/1005
C82
104p/16V/1005
U54
EUP7996
U54
EUP7996
VDDQ
5
NSD
2
AVIN
6
PVIN
7
VREF
4
VSENSE
3
VTT
8
GND
1
PGND
9
L58
SPC6025-1R0M
SPC6025-1R0M
L58
SPC6025-1R0M
SPC6025-1R0M
R55
122/F/1005
R55
122/F/1005
L51
SPC10040-4R7M
SPC10040-4R7M
L51
SPC10040-4R7M
SPC10040-4R7M
R72
OPEN-330/1005
R72
OPEN-330/1005
U53
RT8004P/CP
RT8004P/CP
U53
RT8004P/CP
RT8004P/CP
VDD
1
PGOOD
2
COMP
3
FB
4
RT
5
SYNC/MODE
6
EN/SS
7
PVDD
9
PVDD
16
LX
10
LX
11
LX
14
LX
15
GND
8
PGND
12
PGND
13
PAD
17
TP57
TP10
TP57
TP57
TP10
1
R58
622/1005
R58
622/1005
TP55
TP10
TP55
TP55
TP10
1
C84
104p/16V/1005
C84
104p/16V/1005
C52
106p/16V/2012
C52
106p/16V/2012
TP56
TP10
TP56
TP56
TP10
1
L53
CIC10P300NC
CIC10P300NC
L53
CIC10P300NC
CIC10P300NC
R61
103/F/1005
R61
103/F/1005
C75
226P/6.3V/2012
C75
226P/6.3V/2012
C81
104p/16V/1005
C81
104p/16V/1005
L61
OPEN-CIC10P300NC
L61
OPEN-CIC10P300NC
R63
103/1005
103/1005
R63
103/1005
103/1005
R52
103/F/1005
R52
103/F/1005
L56
CIS41P600AE
CIS41P600AE
L56
CIS41P600AE
CIS41P600AE
R60
681/F/1005
R60
681/F/1005
C58
222p/50V/1005
C58
222p/50V/1005
R59
512/F/1005
R59
512/F/1005
C88
226P/6.3V/2012
C88
226P/6.3V/2012
C51
106p/16V/2012
C51
106p/16V/2012
L52
CIC10P300NC
CIC10P300NC
L52
CIC10P300NC
CIC10P300NC
C85
106p/10V/2012
C85
106p/10V/2012
C83
105p/6.3V/1005
C83
105p/6.3V/1005
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