TCL 40-IP42CS-PWH1XG Schematic
Main Power Supply (42")
8 76554 3 21
Circuit Diagrams and PWB Layouts
EN 43TCM3.2L LA 10.
A1
F
E
D
C
B
A
Power Supply Unit (42")
Z128
I
P801
N
3
2
1
!
!
L
F801
!
5.0A
Z2
I
250VAC
!
L809
2
34
V
R830
560V
4700UH
D808
1N4007
D815
1N4007
LIF-JLB1359
1
L807
D812
D811
RL255
RL255
3A/600V
Z125
I
PGND
!
4
3
L808
C828
!
0.22U
2
Z44
I
2
1
2
1
K801
3
4
3V
4
3
D822
4148WS
C823
0.47U
1
1
1
3
3
!
2
2
K801A
4
4
C845
!
470P
AGND
C843
!
470P
!
3
4
!
L804
2
R836
NC
1
!
PGND
C801
47P
PGND
R822
4R7
C826
C847
0.022U
NC
Z126
I
D810
RL255
Q803
P7NK80
R866
27K
R856
NC
PGND
PGND
R819
R862
C841
22K
1500P
390K
R803
22K
D813
HER108
I I
R867
1K
C819
0.1U
PGND PGND
R863
0R
R858
47K
R859
0.33R
Z110
I
Z118
I
R888
39K
R827
4K7
PGND
R826
4K7
I
Z119
U805
FA5571N
8
1
VH
ZCD
7
2
NC
FB
6
3
VCC
IS
5
4
OUT
GND
Z73
PGND
Z129
I
C832
470P
I
R870
1K
R887
27K
Z120
I
D829
FR104
C802
C835
10U
0.1U
25V
PGND
PGND
R871
68R
D828
4148WS
Z117
I
Z116
I
C806
4U7
!
450V
PGND
PGND
C818
D801
5V6
0.022U
PGND
PGND
Z121
I
PGND
Z122
I
R849
10R
D805
18V
PGND
Z4
I
I
Z115
U801
1
2
3
4
8
VSS
GND1
7
D
GND2
6
VFB
5
VCC
SYNC
FSQ510
D803
20V
PGND
Z25
I
Z1
I
!
D816
1N4007
C824
1000P
PGND
+
Z26
I
Z27
I
!
D804
~~ -
US10KB80R
PGND
C808
C809
0.47U
0.47U
PGND
PGND
L801
6
7
5
N1
8
4
N2
9
3
10
2
11
12
1
PGND
Z43
I
R814
R815
510K
510K
R812
1M
R811
1M
R810
1M
Z127
I
VC
L802
Z130
I
VAL?
C807
330P
C822
0.1U
E
C
Q811
B
2907AL
R885
4K7
PGND
Z123
Z124
I
I
4
R868
10K
3
PGND
PS2561
C844
1000P
PGND
R873
47R
Z131
I
T801
6
ND
5
4
3
NP2
2
NP1
1
PGND
4
3
PS2561
PGND
C825
0.1U
400V
510K
R813
R861
470K
R847
12K7
PGND
Z28
I
!
1
Z29
I
1U
C816
C814
0.1U
R848
12K
Z30
I
C817
R840
22K
PGND
C815
0.01U
50V
PGNDPGND
2
U802
AGND
R835
10M
!
!
AGND
7
8
9
NS
10
11
NS'
12
!
R877
1
2
U803
!
Z52
I
2
D806
Z48
YG902C
I
L803
R808
C827
1000P
100R
C804
C805
1000U
1000U
35V
35V
D824
FR104
1K
Z51
I
R843
4K7
R845
1K
C813
0.1U
3
Z53
I
1
U808
TL431
AGND
PGND
!
C842
220P
AGND
T802
5
GND
ND
4
16V
3
DRAIN
2
NS
NP
1
VC+
!
U804
4
2
3
PS2561
!
D809
SR160
6
7
8
9
10
AGND
1
Z111
I
C838
470U
16V
AGND
Z112
Z114
R838
I
1K2
I
U807
TL431_1V25
R825
2R7
R809
10R
R801
2R7
Z67
Z109
I
VC
D814
FR104
Z105Z106
C803
22U
50V
R880
6K8
R864
6K8
4148WS
PGND
I
!
R865
Z108
4R7
I
PGND
R855
27K
Z107
I
D820
PGND
PGND
U806
L6562A
1
INV
VCC
GDCOMP
3 6
MULT GND
4
ZCD
CS
Z31
I
680P
123
AGND
R842
10K
R846A
AGNDAGND
L805
NC
R850
200R
R854
10K
3
1
2
AGND
R841
39K
I
Z42
Z35
I
8
72
5
PGND
R886
1K
Z45
I
R823
3K3
Z49
I
C836
0.47U
160V
R844
20K
AGND
R846
4K74K7
R853
5K1
C820
0.15U
Z113
I
R852
3K
3A/600V
Z3
Z5
Z11Z12Z6
I
I II
I
PGND
Z7
Z8 Z10Z9
I II
I
R804
Z38
C811
1U
C812
R817
4R7
PGNDPGND
Z34
I
R872
100R
D802
18V
PGND
Z33
I
Z36
I
10R
1U
I
R807
Z37
47R
I
C
Z40
I
2222AL
2907AL
B
Q805
Q809
B
PGND
R806
Z39
47R
E
E
C
I
R805
10R
R839
27K
PGND
Z41
I
VBUS
D818
BYV29-600
I
Z32
PGND
0.047U
R860
5R
T
C830
VBUS
!
C840
C840A
120U
120U
450V
!
450V
F
PGND
Q802
SK3568
12A/500V
E
C833
Q801
SK3568
220P
12A/500V
R837
0.15R
PGND
HOT
COLD
R876
10K
Z13
Z22 Z21
I
AGND
D
Z18
P_ON
I
Z47
I
R875
R874
4K7
47K
AGND
Z14
I
C829
470U
C
35V
Q807
B
BC847A
E
AGND
II
+3.3VSB/0.2A
AGND
Z16
I
Z17
DIM
I
P802
11 12
10
9
7 8
56
3 4
1
2
BL_ON
AGND
C
AGNDAGND
B
A
R853A
240K
Q808
R820
BC847A
75R
E
C
B
R881
470R
Z46
R829
100R
AGND
R821
3K3
AGND
C839
NC
VOL?
AGND
I
C837
0.01U
AGND
I I
R824
3K3
R802
220K
Z15
I
D807
4V7
AGND
+24V/2A
Z50
I
D819
C821
4148WS
0.1U
AGND
L806
2.2UH
Z19Z20
AGND
AGND
2010-Nov-26
4678
3 21
18520_542_090313.eps
090313
Main Power Supply (42")
8 76554 3 21
Circuit Diagrams and PWB Layouts
EN 44TCM3.2L LA 10.
A2
F
E
D
C
R977
75K
B
A
Power Supply Unit (42")
R902
C903
0.47U
AGND
AGND
3
C917A
47P
AGND
AGNDAGND
C924
0.01U
4R7
Z63
AGND
1U
I
C908
R930
NC
AGND
R934
33K
Z69
+24V/2A
C907
1U
2
RW977
2K
1
R957
75K
(56K For AUO)
C917
220P
DIM
R882
1K
HDR2
LDR1
LDR2
R956
47K
I
R928
10K
Z54
I
R904
R907
1
AGND
2
I
Z64
3
Z65
I
4
Z66
I
5
6
AGND
7
8
I
Z68
9
10
11
12
AGND
R915
Z70 Z71
2K2
R924
100K
2K2
R926
R925
100R
Q920
2N7002
HDR2
2K2
R908
R909
100R
Q915
2N7002
LDR2
2K2
R905
Z57
100R
Q913
2N7002
HDR1
2K2
R906
Z58
100R
I
Q914
2N7002
LDR1
U901
LDR1
LDR2
RPT
CT
SYNC
LCT
PDIM
VSEN_POL
OZ9926A
C920
0.022U
Z55
I
B
Z56
I
C
B
I
B
AGND
C
B
E
E
B
C
AGND
TIMER
SSTCMP
II
C
Q908
B
BT3904
E
E
Q911
BT3906
C
AGND
C
B
E
E
B
C
AGND
Q905
BT3904
E
E
Q909
BT3906
C
Q906
BT3904
Q912
BT3906
LX1LX2
HDR1HDR2
BST1BST2
VREF
VIN
ENAGNDA
ADIM
UVLS
OVPT
ISEN
Q907
BT3904
Q910
BT3906
R941
Z94
I
B
B
Z100
E
B
C
Z103
E
B
C
Z82
I
0R
R948
10R
E
Q916
BT3906
C
R947
Z96 Z97
10R
E
Q919
BT3906
C
R951
10R
I
Q917
BT3906
R952
I
10R
Q918
BT3906
+24V/2A
BL_ON
Z93
I
SK3561
Z101
I
Q903
SK3561
Z104
I
Q901
SK3561
Q902
II
PGND
II
PGND
Q904
SK3561
0.47U
C912
Y3
1
2
HOT
COLD
Z79
I
AGND
R927
4K7
C
E
2
2
B
Q923
BT3904
!
D905
4148WS
R903
4K7
!
D902
4148WS
T904
T903
Z78
P901
R945
10K
2
1
P902
2
1
Z24
R942
100R
Z90
AGND
I
I
C901
33P
C906
0.022U
Z86
I
C905
0.022U
Z88
I
C902
33P
Z23
I
D916
BAV70L
2
3
R944
10K
I
Z89
R954
100R
Z87
I
C930
0.022U
C931
0.022U
1
AGND
3
Z84
41
Z85
3
I
I
C913
470P
AGND
41
R975
R973
200R200R
R938
R935
200R
200R
R939
R937
200R200R
R940
R936
200R
200R
R916
R920
200R200R
R921
R919
220R
220R
R971
R970
200R
200R
R974
200R
R959
200R
R960
200R
R972
R963
200R
R961
200R
200R
D901
4148WS
R964
2K2
AGND
AGND
D913
BAV70L
21
3
C921
1000P
AGND
I
VREF
C927
R968
4700P
47K
Q924
BT3906
R918
E
B
C
4K7
AGND
R967
10K
Z80
I
AGND
Q922
BT3904
C
B
E
R966
4K7
Z81
I
AGND
R976
4K7
VBUS
Z95
R917
10K
I
R910
10K
R950
1K
R953
D904
4148WS
R949
1K
D903
4148WS
R946
1K
4148WS
D908
4148WS
1K
D907
R912
100R
Z61
I
6
7
8
9
GND
10
C911
1U
Z62
I
Z60
I
6
7
8
9
GND
NS
10
C910
T902
1U
Z59
I
5
GND1
ND
4
VCC
3
DRAIN
2
NP
NS
1
VC+
T901
R923
100R
!
R913
100R
5
GND1
ND
4
VCC
3
DRAIN
2
NP
1
VC+
R922
100R
!
Z92
I
R911
Z91
10K
I
Z98
I
R914
10K
Z99
I
Z102
I
24
Z72
AGND
23
22
21
20
19
18
17
16
15
14
13
C918
4700P
AGND
I
C914
HDR1
Z74
C909
0.47U
I
VREF
1U
R901
56R
AGND
AGND
Z75
I
R969
47K
(39K For AUO)
Z76 Z77
R931
10K
AGND
R962
750K
D909
4148WS
C916
0.047U
R932
56K
C922
0.01U
C915A
0.47U
Z83
I
R958
1K8
(2k4 For AUO)
AGND
AGND
AGND
C915
1U
2
RW978
470R
R978
C923
0.1U
AGND
AGND
3
1
1K8
F
E
D
C
B
A
AGND
AGND
2010-Nov-26
4678
3 21
18520_543_090313.eps
090313
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