Read Sharp LC-32SB25EB Service Manual online
103
2. POWER SCHEMATIC DIAGRAM for 26” and 32”
LC-26SB25E/S
, LC-32SB25E/S
, LC-42SB55E/S
/RU
/RU
/RU
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
1
2
3
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
To
scaler
T
o
panel
!
!
36g
82g
30g
62g
O/P >15W
!
BD901 A1
CN901 E1
CN902 G8
CN903 F10
C901 D2
C902 C2
C903 C1
C904 C2
C905 A2
C906 F1
C907 A5
C908 F1
C909 B4
C910 B3
C911 B3
C912 C4
C913 C3
C914 C3
C915 C4
C916 B3
C931 D6
C932 E3
C933 E3
C934 F3
C935 F4
C936 E5
C937 E5
C938 F4
C939 E5
C940 F5
C941 F6
C942 G2
C943 E8
C944 E9
C945 E9
C946 E8
C947 E9
C948 G3
C949 G3
C951 A7
C952 F5
C953 A6
C954 E6
C956 F8
C957 G9
C958 G8
C959 A8
C960 B5
C980 B7
C981 C7
C982 C7
C983 C7
C984 B9
C985 B9
C986 B10 C987 H6
C989 C9
C989 C9
D902 A5
D903 B4
D914 F9
D935 B9
D951 D5
D952 E5
D955 D8
D956 E8
D980 B7
D981 B7
D982 A8
FB902 A2
FB904 A5
FB905 A6
FB980 B9
F901 E1
F903 E9
HBD901 A1
HD902 A4
HD935 A9
HD955 D7
HQ901 B5
HQ951 D6
HQ952 D6
IC901 B3
IC931 C6
IC932 C8
IC951 E4
IC952 G2
IC953 G3
IC982 C8
IC991 G6
L901 C2
L902 B2
L903 A2
L904 B1
L905 B2
L906 A3
L907 E5
L931 E8
L971 D8
L980 B9
NR901 D1
Q901 B4
Q931 C6
Q945 G5
Q951 E6
Q952 E6
Q988 G6
Q992 D10 Q993 D9
RV901 E2
RV901 E2
RV902 A6
RV903 B2
R901 D2
R902 D2
R903 D1
R905 B3
R906 B3
R907 C3
R908 C3
R909 D4
R910 C5
R911 C4
R912 C4
R913 C4
R915 C5
R916 B4
R917 C4
R918 B4
R919 B4
R930 B6
R931 D6
R933 C5
R934 C5
R935 C5
R936 E5
R937 G5
R945 G6
R950 D10 R953 D4
R954 E4
R954 E4
R955 E4
R956 F4
R957 E3
R958 E3
R959 E2
R960 E5
R961 E5
R962 E5
R963 E6
R964 F5
R965 F6
R966 E3
R967 G2
R968 G3
R969 G3
R970 G3
R971 G4
R972 G3
R973 H3
R974 E9
R975 E9
R976 E9
R977 G9
R980 G6
R981 G4
R982 C7
R983 C9
R984 C7
R985 C9
R986 C10 R987 C10
R988 C7
R988 C7
R989 G1
R990 C9
R991 C9
R992 C9
R993 D9
R994 H6
R995 C9
R996 B8
R997 G8
R998 B7
R999 C7
SG901 C1
SG902 C2
SG903 C1
SG904 C2
T901 B8
T902 E7
ZD930 C6
ZD931 D5
ZD935 G5
ZD937 G4
ZD965 C10 ZD966 C10
ZD967 H2
ZD967 H2
ZD980 B7
ZD981 C7
ZD982 C8
RFmin_FB
STBY
RFmin
+5V
STANDBY_IN
VCC_PI
+5V
VCC_PI
STANDBY_IN
RFmin_FB
STBY
RFmin
BRIGHT-ADJ
INVERTER-ON-OFF
STANDBY_IN
STANDBY
BRIGHT-ADJ
INVERTER-ON-OFF
+400V_F
+400V_F
+24V_F
+24V_F
+24V
+24V
+12V
+12V
+400V
VCC_PFC
+5VSB
12V
+24V_A
+400V
VCC_PFC
VCC_PFC
+12V_F
+400V
+400V_F
12V
+24V
+24V_A
+5VSB
+24V
Vac_in
Vac_in
12V
R980
4.7K
R970
1K_NC
C914
1uF
ZD931
RLZ5.1B
1
2
ZD967
RLZ27B_NC
1
2
Q993
2N7002
1
3
2
C948
47N 50V
IC951
L6599D
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Css
DELAY
CF
RFmin
STBY
ISEN
LINE
DIS PFC_STOP
DELAY
CF
RFmin
STBY
ISEN
LINE
DIS PFC_STOP
GND
LVG
Vcc
N.C.
OUT
HVG
VBOOT
R955
2M
2M
C984
10nF/100V
1
2
L903
BEAD
BEAD
1
2
+ C946
470uF/25V
R993
22K_1%
C
980
1.5nF
/500V
C960
470pF/1KV
C906
2200pF/250V
R977
2.4K_1/2W
2.4K_1/2W
C951
2.2nF/1KV_NC
L931
3.5uH
3.5uH
C953
2.2nF/500V
R913
18K_1%
R917
220R
R965
0R43 5% 2W
0R43 5% 2W
R990
0R
D980
UG1007
IC901
SG6961
1
2
3
4
5
6
7
8
INV
COM
P
MOT
CS
Z
CD
GND
OUT
VCC
R907
33K
33K
C983
0.1uF
IC991
TCET1103G
1
2
4
3
HQ901
Heatsink
4
3
2
1
R909
680R_1%
680R_1%
R981
47K_1%
1
2
FB980
Bead
1
2
SG901
DSP201M-A21F
R991
11K_1%
D955
SP20100
1
2
3
SG902
DSP201M-A21F
DSP201M-A21F
L971
3.0uH
R959
1M
R974
5.1K
R995
3.3K
C945
0.1uF
0.1uF
R988
390K
HD935
Heatsink
1
F903
T2.5A
1
2
ZD930
RLZ9.1B_NC
1
2
SG904
DSP201M-A21F
DSP201M-A21F
F901
T5AH/250V
1
3
2
4
T901
EF-20
3
2
1
4
5
8
10
7
9
6
RV902
TVR14561_NC
TVR14561_NC
1
2
R969
3.3K
SG903
DSP201M-A21F
DSP201M-A21F
R950
100K
100K
R967
100R
100R
FB902
NC
1
2
CN902
1
2
3
4
5
6
7
8
9
10
11
12
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
11
12
R919
47R
C938
0.1uF_NC
CN903
1
2
3
4
5
6
7
8
9
10
11
12
13
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
11
12
13
C916
10pF
1
2
R930
2.2M_NC
Q945
BC337
2
1
3
D914
Jump wire
R992
18K_1%
R968
10K
R964
1K
R908
33K
R953
2M
R975
5.1K_NC
5.1K_NC
R937
10R
C956
0.1uF
_N
C
C
R985
10K
R989
0R_NC
C908
2200pF/250V
C952
1nF_NC
1nF_NC
R971
Jump
1
2
R997
1K
1
2
ZD981
RLZ15B
1
2
R958
18K_1%
R973
1.96K _1%
1.96K _1%
IC953
TL431
TL431
Q992
2N7002
1
3
2
L980
3.5uH
R905
47K
Q931
BC857C
BC857C
1
2
3
R954
2M
2M
R931
300K
C957
0.1uF_NC
C933
220pF
+
C959
10UF/50V
10UF/50V
+
C944
470UF35V
470UF35V
C931
0.33uF
0.33uF
C911
0.1uF
0.1uF
L905
BEAD
1
2
R918
10R
ZD980
P6KE160A
R999
1M_NC
C936
0.1uF
C909
2.2uF/25V
2.2uF/25V
HQ952
Heatsink
1
R903
150K
D982
RGP10D
C935
0.1uF
D935 SP1060
1
3
2
R986
100R
100R
+
C
986
47uF
25V
R960
22R
T902
ERL35
1
14
16
2
8
13
10
9
9
11
7
12
15
C903
470pF
470pF
C934
1uF
ZD982
RLZ5.1B_NC
1
2
-
+
BD901
KBJ608G
2
1
3
4
C939
2.2uF/25V
2.2uF/25V
R911
1M_1%
C982
100pF
R902
150K
R987
100R
C940
1nF
1nF
D981
1N4148
R910
1M_1%
C987
0.1uF
HQ951
Heatsink
1
D956
SP1060
1
2
3
C915
1nF
D902
STTH8L06FP
R976
1.2K_NC
1.2K_NC
R962
22R
FB905
Jump
1
2
R906
200K_NC
200K_NC
HD902
Heatsink
1
ZD935
RLZ15B
RLZ15B
1
2
R956
27K
R901
150K
Q951
STP10NK60ZFP
STP10NK60ZFP
t
NR901
SCK101R55LSY
1
2
D952
BAV103
ZD966
RLZ15B
1
2
IC932
TCET1103G
1
2
4
3
R966
3.9K_1%
1
2
R933
2M
D903
LS4148
R961
51K
Q988
2N7002
1
3
2
HBD901
Heatsink
4
3
2
1
Q952
STP10NK60ZFP
D951
BAV103
R982
47R
C942
4.7nF
R957
10K
IC952
TCET1103G
1
2
4
3
R916
51K
R972
20.5K_1%
20.5K_1%
CN901
SOCKET
1
2
3
C937
0.1uF
0.1uF
R984
12K
C958
0.1uF_NC
0.1uF_NC
+
C947
220uF/25V
+
C981
33uF_50V
R934
2M
FB904
Bead
1
2
R983
220R
220R
L906
PFC Choke_290uH
6
5
2
1
7
8
9
R994
100K
100K
Ω
1
2
R936 10R
C949
0.1uF_NC
HD955
Heatsink
4
1
3
2
C932
0.22uF
0.22uF
R963
51K
L902
13mH
1
2
4
3
C954
2.2nF/500V_NC
ZD937
RLZ15B
1
2
ZD965
RLZ27B
1
2
C910
10pF_NC
10pF_NC
C902
470pF
470pF
L907
33U
33U
C904
470nF
IC982
TL431
TL431
C989
0.1uF
+
C
985
2200uF
10
V
R935
2M
R998
0R
C941
27nF/1000V
Q901
STW20NM60
2
1
3
C912
220pF
+
C943
1000UF35V
C913
330nF
R945
10K
L904
BEAD
1
2
C901
470nF
+
C907
120uF450V
R912
1M_1%
L901
13mH
1
2
4
3
RV901
TVR14561
C905
1uF/450V
TNY277
IC931
1
6
2
7
4
8
5
EN/UV
S
BP/M
S
D
S
S
R915
0.12R_2W
0.12R_2W
RV903
TVR14511
R996
10R
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