LG 32LH40 / 32LH41 (CHASSIS:LA92B) Service Manual ▷ View online
+24V_AMP
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.
+24V
0.1uF
50V
C621
+24V_AMP
120-ohm
L611
MLB-201209-0120P-N2
L603
1N4148W
100V OPT
D604
SPK_L-
006:AJ20
100
R608
AMP_RST
001:AB21
100
R606
0.47uF 50V
C633
5.6
R616
1000pF 50V
C629
0.1uF
50V
C620
4.7K
R620
1000pF 50V
C630
0.01uF 50V
C639
1uF
16V
C622
AUDIO_MASTER_CLK
001:W26
1000pF 50V
C607
3.3K
R602
MS_SCK
001:W26
1N4148W
100V OPT
D602
0.47uF 50V
C634
0.1uF
C608
0.1uF
50V
C626
0
R600
R600
4.7K
R617
22000pF
50V
C614
33K
OPT
R609
+3.3V
3.3
R622
1000pF 50V
C632
120-ohm
L608
0.1uF
50V
C601
SPK_R-
006:AJ16
1000pF
50V
C606
SPK_R-
006:AH9
+1.8V_AMP
10uF
10V
C610
SPK_L-
006:AH10
5.6
R615
SDA_SUB/AMP
001:AI5;004:K27
2SC3052
Q600
E
B
C
33pF
50V
OPT
C616
100pF
50V
C604
0.1uF 50V
C636
0.1uF
50V
C637
5.6
R613
MS_LRCK
001:W26
SPK_R+
006:AH10
0.1uF
50V
C605
SCL_SUB/AMP
001:AI5;004:K27
DA-8580
EAP38319001
L607
2S
1S
1F
2F
3.3
R624
100
R607
0.01uF 50V
C615
1N4148W
100V
OPT
D603
120-ohm
L609
1uF
10V
C611
1000pF 50V
C631
100
R604
100
R605
0.1uF
50V
C638
10K
R611
0.01uF 50V
C640
1uF 16V
C619
0.1uF
50V
C627
4.7K
R619
0
R603
+3.3V_ST
SPK_L+
006:AJ22
1uF 10V
C617
1N4148W
100V
OPT
D601
0.1uF 50V
C613
22000pF 50V
C623
0.01uF
50V
C642
0.01uF
50V
C641
100
R601
5.6
R614
22000pF
50V
C624
MS_LRCH
001:W26
SPK_R+
006:AJ18
4.7K
R618
0
R610
0.1uF 50V
C635
10K
R612
+1.8V_AMP
+24V_AMP
120-ohm
L610
22000pF 50V
C618
DA-8580
EAP38319001
L606
2S
1S
1F
2F
MLB-201209-0120P-N2
L604
WAFER-ANGLE
P600
1
SPK_R-
2
SPK_R+
3
SPK_L-
4
SPK_L+
3.3
R621
33pF
50V
C609
SPK_L+
006:AH11
+1.8V_AMP
3.3
R623
33pF
50V
C612
AMP_MUTE
001:D16
MLB-201209-0120P-N2
L605
3.3
R625
3.3
R626
0.01uF
50V
C643
0.01uF
50V
C644
0.1uF
50V
C645
MLB-201209-0120P-N2
L602
POWER_DET
0
OPT
R627
68uF
C628
35V
10uF 16V
C600
10uF 16V
C603
68uF
35V
C602
+3.3V
0.1uF
16V
C647
GND
22uF
16V
C646
0.1uF
16V
C648
AZ1117H-1.8TRE1(EH13A)
IC601
2
OUTPUT
3
INPUT
1
ADJ/GND
22uF
16V
C649
+1.8V_AMP
NTP-3100L
EAN60664001
IC600
1
BST1A
2
VDR1A
3
RESET
4
AD
5
DVSS_1
6
VSS_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LFM
12
AVDD_PLL
13
DVDD_PLL
14
TEST0
15
DVSS_2
16
D V
D D
17
S D
A T
A
18
W C
K
19
B C
K
20
S D
A
21
SCL
22
MONITOR_0
23
MONITOR_1
24
MONITOR_2
25
F A
U L
T
26
V D
R 2B
27
BST2B
28
PGND2B_1
29
PGND2B_2
30
OUT2B_1
31
OUT2B_2
32
PVDD2B_1
33
PVDD2B_2
34
PVDD2A_1
35
PVDD2A_2
36
OUT2A_1
37
OUT2A_2
38
PGND2A_1
39
PGND2A_2
40
BST2A
41
VDR2A
42
NC
43
V D
R 1B
44
BST1B
45
PGND1B_1
46
PGND1B_2
47
OUT1B_1
48
OUT1B_2
49
PVDD1B_1
50
PVDD1B_2
51
PVDD1A_1
52
PVDD1A_2
53
OUT1A_1
54
OUT1A_2
55
PGND1A_1
56
PGND1A_2
SPEAKER_L
2A => 5A
SPEAKER_R
Mstar Application
Monitor0_1_2 TP is necessory
MCLK SDATA WCK BCK TP is necessory
C
2009
AUDI
12V_TCON
+5V
SI4925BDY
Q706
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
+12V
PANEL_CTL
001:AR32
+5V_ST
+5V_ST
10K
R728
OPT
10K
R726
POWER_ON/OFF
001:AR31;010:AG9
+5V_GENERAL
22K
R732
22K
R735
10K
R727
2SC3052
Q703
E
B
C
2SC3052
Q705
E
B
C
2SC3052
Q704
E
B
C
560
R730
10K
R729
10uF
C742
OPT
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.
GND
GND
GND
10uF
10V
C757
120K
R725
R725
OPT
BLM18PG121SN1D
L714
+3.3V_MEMC
GND
+3.3V
0.1uF
C746
0.1uF
16V
C753
0.1uF
16V
C760
0.1uF
C749
0.1uF
16V
C758
10uF
C756
22uF 16V
C752
22uF 16V
C750
3225
22uF
16V
C773
+5V_EXT
+12V
0.1uF
16V
C774
+5V
BLM18PG121SN1D
L727
OPT
0.1uF
16V
C780
+3.3V_FE
POWER_EN
001:AR30;007:B6;007:T18;007:T3;007:AG9;007:AO16
100
R754
OPT
POWER_EN
001:AR30;007:B6;007:T3;007:AG9;007:AM26;007:AO16
100
OPT
R756
CB3216PA501E
L716
CB3216PA501E
L722
10K
R718
+3.3V_ST
0.1uF
16V
C747
4.7uF
6.3V
OPT
C761
4.7uF
6.3V
OPT
C762
15pF
50V
C711
PWM_DIM
001:AF12
4.7K
R707
ERROR_OUT
001:AB20
4.7K
R704
0.1uF
16V
OPT
C709
BG2012B080TF
L705
POWER_ON/OFF
001:AR32
+5V_ST
0
R709
OPT
120K
OPT
R701
BG2012B080TF
L700
47uF
25V
C722
1uF
25V OPT
C725
0.1uF
50V
C719
2SC3052
Q702
E
B
C
100
R714
22uF
16V
OPT
C731
0.1uF
50V
C728
0.1uF
16V
OPT
C707
1uF
25V
C706
1uF
35V
C723
A_DIM 001:AF12
6.8K
OPT
R715
+24V
0.1uF
50V
OPT
C720
10K
R719
+5V_GENERAL
CB4532UK121E
L704
CB4532UK121E
L706
22uF
16V
OPT
C730
220uF
16V
C726
+12V
MLB-201209-0120P-N2
L707
0
R761
OPC_EN
OPC_OUT1
001:AF12
0.1uF
C793
22uF
16V
C791
1/10W
10
1%
R724
1/10W
10K
R738
+5V_GENERAL
NR8040T3R6N
3.6uH
L726
1/10W
22K
1%
R723
1/8W
75K
1%
R722
1uF
16V
C788
22uF
16V
C792
22uF
C787
OPT
0.1uF
16V
OPT
C790
+3.3V
+1.26V_VDDC
22uF
C786
1/10W
10K
OPT
R731
10nF
50V
C789
CB3216PA501E
L711
+3.3V_ST
0.1uF
16V
C717
0.1uF
16V
C710
+3.3V_ST
+3.3V_AVDD_MPLL
+5V_ST
0.1uF
16V
C705
10uF
10V
C704
BLM18PG121SN1D
L703
10uF
6.3V
C708
+1.26V_MEMC
+1.8V_MEMC
1K
R744
1uF
16V
C770
+5V_GENERAL
100
OPT
R716
OPC_OUT2
001:AF12
0.1uF
50V
C735
OPT
0
Except_OPC
R760
10nF
50V
R781
22uF
16V
C777
0
R764
1/8W
300K
1%
R767
22uF
C764
OPT
+1.8V_MEMC
22uF
C763
+5V_EXT
1/10W
10
1%
R768
NR8040T3R6N
3.6uH
L712
22uF
16V
C776
1/8W
390K
1%
R766
1uF
16V
C767
1/10W
10K
R763
POWER_EN
100
OPT
R765
1/10W
33K
1%
R752
1/10W
30K
1%
R750
1/10W
27K
1%
R751
CB3216PA501E
L715
CB3216PA501E
L708
CB3216PA501E
L709
47
R742
MP2212DN
IC707
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
47
R759
MP2212DN
IC705
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
2SC3052
OPT
Q707
E
B
C
+5V_ST
10K
OPT
R747
0
R743
10uF
6.3V
C771
10uF
6.3V
C759
0.01uF
25V
C779
10uF
6.3V
C778
10uF
6.3V
C754
OPT
C766
BLM18PG121SN1D
L719
CB3216PA501E
L724
47K
R739
47K
R740
10K
OPT
R721
10K
R720
+3.3V_ST
0
R713
10K
OPT R753
2SC3875S(ALY)
OPT
Q708
E
B
C
INV_CTL
001:AR31
BLM18PG121SN1D
L717
0
R771
0
OPT
R773
RL_ON
001:AR32
10K
R733
OPT
22uF
16V
C732
22uF
C733
OPT
1N4148W_DIODES
100V
D700
OPT
1/10W
56K
1%
R770
1/10W
18K
1%
R769
NR8040T3R6N
3.6uH
L710
BLM18PG121SN1D
L720
GND
47
R737
10nF
50V
C741
MP2212DN
IC704
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
1/10W
10
1%
R734
10uF
6.3V
C751
GND
MP2212DN
IC706
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
1/10W
10K
R748
OPT
68K
R746
NR8040T3R6N
3.6uH
L718
1N4148W_DIODES
100V
D701
OPT
1/8W
13K
1%
R762
10nF
50V
C718
1uF
10V
C734
47
R749
22uF
16V
C765
22uF
16V
C768
OPT
1N4148W_DIODES
100V
OPT
D702
22uF
16V
C714
+3.3V
+1.8V_DDR
BLM18PG121SN1D
L702
9.1K
1%
R712
SC4215ISTRT
IC701
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
12K
1%
R711
0.1uF
16V
C713
10uF
10V
C712
0.1uF
16V
C715
1uF
10V
C737
POWER_ON_DELAY
0
OPT
R772
22uF
25V
C748
1N4148W_DIODES
100V
D703
OPT
POWER_EN
1uF
25V
C755
68uF
C721
35V
68uF
C727
35V
4.7uF
25V
C740
FW20020-24S
P700
19
NC
14
12V
9
5.2V
4
GND
18
24V
13
12V
8
5.2V
3
GND
17
12
GND
7
5.2V
2
PWR ON
16
GND
11
GND
6
GND
1
NC
20
15
GND
10
5.2V
5
GND
21
22
23
NC
24
PWM_DIM
+5V_GENERAL
CB3216PA501E
L725
1/8W
24K
1
%
R736
APE8953MP
IC708
3
VOUT_1
2
FB
4
VOUT_2
1
GND
5
VIN
6
VCNTL
7
POK
8
EN
AP1117E33G-13
IC702
2
OUT
3
IN
1
ADJ/GND
3.3K
R717
POWER_ON_DELAY
0
R758
0
R757
10K
R705
OPT
33K
OPT
R708
BLM15BD121SN1
L701
+3.3V_ST
RT1P141C-T112
Q701
1
2
3
2SC3052
Q700
OPT
E
B
C
10K
R702
OPT
0
R703
3.3K
R710
560pF
50V
C781
560pF
50V
R782
560pF
50V
C724
560pF
C772
1/10W
10K
R755
1/10W
2K
5%
R1508
100K
5%
R774
GND
1uF
10V
C782
L728
82K
R741
0.47uF
16V
OPT
C716
1/10W
10
1%
R745
+3.3V_ST
+5V_ST
0
R775
OPT
0
R776
+5V_GENERAL
20K
R706
+5V_+12V
ROM LIPS & POWER B/D
C1130
INV ON
Err OUT
24V
A.DIM
465 mA @85% efficiency
Placed on SMD-TOP
C OUT
MAX 3A
1600 mA
R1
4.9A 0.0150OHM 34MHZ
3A, DCR=0.025 ohm
Placed on SMD-TOP
Close to IC
$0.07
Close to IC
Vout=0.8*(1+R1/R2)
R2
C IN
450 mA
Placed on SMD-TOP
R2
R1/R2 = 12K/20K => Vout=1.28
+1.26 Core for URSA
Placed on SMD-TOP
Vout=0.8*(1+R1/R2)
Replaced Part
1.5mA
R1
C OUT
C IN
Close to IC
R1
$0.07
+1.8V_MEMC for URSA DDR
415 mA @85% efficiency
Vout=0.8*(1+R1/R2)
Replaced Part
$0.24
Placed on SMD-TOP
Close to IC
R2
400 mA + 600 mA
Placed on SMD-TOP
4.9A 0.0150OHM 34MHZ
About 1.84V
R1
R2
Placed on SMD-TOP
Close to IC
Vout=0.8*(1+R1/R2)
Placed on SMD-TOP
Close to IC
R2
Placed on SMD-TOP
PI Result
Close to IC
Close to IC
R1
+5V_EXT
+3.3V
+1.8V for Saturn5 DDR
R1/R2 : 27K / 20K => Vout=1.88
R1/R2 : 12K / 9.1K => Vout=1.85
R1/R2 : 15K / 12K => Vout=1.80
+1.26 Core for Saturn5
Stand-by +3.3V
C
2009
POWER
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.
3216
10uF
16V
C1028
+1.2V_DVDD_PVSB
+3.3V_PVSB
3216
10uF
16V
C1023
3216
10uF
16V
C1038
0
5%
1/4W
R1034
+1.2V_PVSB
+3.3V_AVDD_PVSB
+3.3V_DVDD_PVSB
+3.3V_PVSB
VSB_RESET
TS_DATA[0-7]
0.1uF
C1068
1K
R1063
TS_SYNC
22
R1077
TS_SYNC
0.1uF
C1067
0
R1065
TS_VALID
100
AR1070
+3.3V_DVDD_PVSB
TS_CLK
22
R1078
+3.3V_DVDD_PVSB
0
R1073
OPT
470
PV
R1069
1/16W
100
AR1072
PV
LD1000
FE_DEMOD_SCL
JP1004
1N4148W D1000
1M
R1072
FE_DEMOD_SDA
+3.3V_AVDD_PVSB
JP1007
+3.3V_AVDD_PVSB
1uF
10V
C1073
100
AR1071
OPT
R1076
TS_VALID
47K
R1074
0.01uF
C1070
OPT
R1075
OPT
R1066
JP1005
+1.2V_DVDD_PVSB
IF_AGC
JP1006
IF_N
0.01uF
C1069
5.1K
R1068
OPT
1K
R1060
100
R1064
IF_P
OPT
R1067
TS_CLK
0.1uF
50V
C1026
0.1uF
50V
C1030
0.1uF
50V
C1032
0.1uF
50V
C1033
0.1uF
50V
C1043
0.1uF
50V
C1044
FE_TUNER_SDA
FE_TUNER_SCL
0.1uF
C1066
100
R1061
100
R1062
SC156515M-1.8TR
IC1001
2
VIN
1
EN
3
GND
5
ADJ
4
VO
4.7K
R1001
100uF
16V
C1002
0.1uF
50V
C1020
15K
R1014
VSB_CTRL
100uF
16V
C1018
+3.3V_FE
8.2K
R1015
0.1uF
50V
C1003
1K
R1002
+3.3V_PVSB
CB3216PA501E
L1007
500
L1005
OPT
500
L1008
VCOMO
001:D24
10uF
10V
C1051
OPT
IF_P
270
R1019
+5V_TU
FE_SIF
001:W30
FE_TUNER_SDA
0
R1027
47
R1016
OPT
0.01uF
25V
C1008
82pF
50V
C1004
CM2012F6R8KT
6.8uH
L1004
+5V_TU
FE_VMAIN
001:D24
0
R1005
FE_TUNER_SCL
2.2K
R1004
OPT
22
R1022
0
OPT
R1018
+5V_TU
12K
R1007
10uF
10V
C1011
470
R1010
0
R1026
IF_N
SIFMO
001:W30
500
L1006
OPT
100pF
50V
C1017
10K
R1006
OPT
0.01uF
50V
C1009
270
R1020
OPT
R1009
GND
0.1uF
50V
C1021
OPT
0.1uF
50V
C1005
4.7K
R1017
22
R1023
4.7K
R1013
500
L1003
OPT
CM3216F100KE
10uH
L1001
10K
R1008
0.1uF
50V
C1007
27pF
50V
OPT C1025
0.
1u
F
50V
C1014
0.1uF
50V
C1052
OPT
+5V_TU
0.047uF 50V
C1012
OPT
IF_AGC
100pF 50V
C1015
0.01uF
25V
C1053
OPT
0
R1021
27pF 50V
OPT C1024
+5V_TU
0
R1031
OPT
27pF
50V
C1072
27pF
50V
C1071
220uF
16V
C1013
220uF
16V
C1054
36pF
50V
C1045
OPT
36pF
50V
C1046
OPT
0
R1033
0
R1032
220nH
L1012
IF_Coil
20K
R1011
R1011
SC4215ISTRT
IC1000
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
100uF
16V
C1019
+1.2V_PVSB
0.1uF
50V
C1022
10K
R1012
R1012
+5V_EXT
MLB-201209-0120P-N2
L1013
0
R1003
ISA1530AC1
Q1000
E
B
C
ISA1530AC1
Q1001
E
B
C
OPT
C1074
OPT
C1075
100
R1030
OPT
POWER_EN
001:AR30;007:AH18
1uF
16V
C1010
CB3216PA501E
L1009
0.1uF
50V
C1016
47uF
16V
C1039
0.1uF
16V
C1037
OPT
AS7809DTRE1
IC1003
2
GND
3
OUTPUT
1
INPUT
+5V_TU
BG2012B800
L1010
100uF
16V
C1077
100
R1028
OPT
+12V
0.01uF
25V
C1041
0.1uF
16V
C1076
KIA78R05F
IC1002
1
VIN
2
V C
3
V O
U T
4
N C
5
G N
D 1
6
G N
D 2
0.1uF
16V
C1034
0.33uF
16V
C1036
0.1uF
C1040
100uF
16V
C1035
LGDT3305
IC1004
1
NC_1
2
VINA2
3
VINA1
4
INCAP
5
VSSAAD10A
6
I2CSEL
7
ANTCON
8
VDD_1
9
I2CRPT_SCL
10
I2CRPT_SDA
11
IFOUT
12
RFOUT
13
TPERR
14
VDD33_1
15
TPVALID
16
TPDATA[0]
17
VSS33_1
18
TPDATA[1]
19
TPDATA[2]
20
TPDATA[3]
21
TPDATA[4]
22
TPDATA[5]
23
TPDATA[6]
24
TPDATA[7]
25TPCLK
26TPSOP
27NIRQ
28SDA
29VDD33_2
30SCL
31VSS_1
32VDD_2
33VSS_2
34VSS33_2
35PLLAVDD
36PLLAVSS
37
N R
S T
38
O P
M
39
VDD33_3
40
NC_2
41
VSS33_3
42
XTALI
43
X T
A LO
44
VSS_3
45
X M
46
VDD_3
47
VSSDAD10
48
V C
C A
A D
1 0A
TDVW-H103F
TU1001
14
IF_AGC
13
DIF[-]
5
RF_AGC
12
DIF[+]
11
NC_3
2
NC_2
19
VIDEO
18
AUDIO
10
AS
4
+B1
1
NC_1
17
NC_4
9
CLOCK
8
DATA
3
GND_1
16
SIF
7
GND_2
6
NC[VT]
15
+B2
20
SHIELD
20K
R1000
2.2uF
16V
C1000
2.2uF
16V
C1001
25MHz
X1005
0
R2232
220nH
L1011
IF_Coil
0
L1011-*2
IF_Short
0
L1012-*2
IF_Short
270nH
L1002
47pF
C1006
TS_DATA[1]
TS_DATA[6]
TS_DATA[2]
TS_DATA[4]
TS_DATA[5]
TS_DATA[0]
TS_DATA[3]
TS_DATA[0-7]
TS_DATA[0-7]
TS_DATA[7]
VSB +1.0V B+ BLOCK
VSB +3.3V B+ BLOCK
VDD33
VSSAD10
VCCAAD10A
V DD
VSS33
SLIM_SCAN
O PM
VSS
XTALI
TPDATA[1]
TPDATA[2]
TPDATA[3]
TPDATA[4]
TPDATA[5]
TPDATA[6]
TPERR
TPDATA[7]
VDD33
JTAG
TPVALID
TPDATA[0]
VSS33
VSSAAD10A
IF OUT
I2CRPT_SDA
I2CRPT_SCL
VINA1
I2CSEL
VINA2
RF OUT
VDD
INCAP
ANTCON
VROA
VSS
VDD33
SCL
TPCLK
SDA
VSS33
VDD
PLLAVDD
PLLAVSS
TPSOP
VSS
NIRQ
X M
XTALO
NRST
(I2C Channel 6)
Close to tuner
Option for FM Rejection
The value of coil & cap
could be changed to optimized each
V0 = 0.8(R1+R2) / R2
R1
R2
MStar Application
MStar Application
MStar Application
C
2009
TUNER
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