Sharp LC-19LE320 Service Manual page 151

POWER SCHEMATIC DIAGRAM (for 32" and 37")
715G4065
!
1 2
FB905
60R
HBD901
Heatsink
C910
1 2 1U 450V
3 2
ER28
L906
BD901
KBJ608G
RV903
TVR14511 R905
L905 L904 68K
BEAD BEAD C995
!
15P 50V
Vac_in
3 2
SG903 ! SG904
DSP201M-A21F DSP201M-A21F
4 1
L902
! !
C903 C902
0.001uF/250V 0.001uF/250V
!
C909
0.001uF/250V
!
C904
0.47UF275V
C914
2U2 16V
3 2
SG901 ! SG902
DSP201M-A21F DSP201M-A21F
4 1
L901
R903 R902 R901
180K 220K 180K
SCK101R55LSY
NR901
! ! !
!
C901
!
470NF
!
R959
C932 C933
RV902 RV901
1M
TVR14561
0.22uF 330pF
! !
NC
27K_1%
F901 F902
R958
SG905 T4AH/250V T4AH/250V
!
NC
CN901
CONN
!
!
0.001uF/250V 0.001uF/250V
C908 C906
R987
6K8
Q990
BC847C +24V
RFmin
BC857C
Q932
R936
1
10K
R986
330R R968
4K7
R979
!
4K7
STBY
R969
R939
1K
4K7
IC952
TCET1103G
R972
S901 S903 S902 S904
22K_1%
metal plate metal plate metal plate metal plate C949
0.1uF
R970
3
22K
1
IC953
2
TL431
2008-03-14
FMN-1106S FB904
D991
D902
1N5408
1 2
C907
33uF 450V
C953
1500PF 1KV
VCC_PFC
TK12A60U
Q901
C911
1
330nF
D903
FB984
BAV103
R916
C960
1 2 51K
470pF/1KV
FB982
R919
Bead
150R
HQ901
Heatsink FB983 Vac_in
1 2
IC901
R935
SG6961
2M2
R917
330R
R934
R915
2M2
0R15 1% 1W
R907
24K
R933
2M2
+400V
R912
1M_1%
R908 R911
R910
33K
1M_1% 1M_1%
R913
C915
C913
18K_1%
1nF
330nF
R909
680R_1%
D951
BAV103
R966
R960
2.2K
100R
2 1 100N 50V
IC951
C936
1 16
Css VBOOT
2 15
3 DELAY HVG 14
CF OUT
RFmin 4 13
RFmin N.C. BAV103
STBY 5 12
STBY Vcc
6 11 D952
ISEN LVG
7 10
LINE GND
R957 8 9
DIS PFC_STOP
3K3
R962
1U/50V
L6599D
R967 100R
C937
+
330R
C990
10uF 50V
C942
1nF
+
C934
4U7 50V D954
BAV21
R964
390R
D953
R956 C940 BAV21
C935
0.1uF
33K
0.1uF
R955
100K
VCC_PI
R937
22R
R971
R946
22R
15K
BC327
Q945
R945
47K
R975 VCC_PFC
1K8 1/8W
!
+5V
+12V_F
IC991
TCET1103G
1 2 1 2
R981
R947
D958 ZD983
330R
47K_1% LL4148 BZX79-C24
R980
2.7K
1 2 STANDBY _IN
Q988
BC847C
R998
R973 10K
C994
2.2K _1%
10N 50V
+400V
+ + +
C918
C916
33uF 450V
33uF 450V
+400V
ZD980
C980
P6KE160A
1.5nF/500V
VCC_PI
D980
UG1006
D961 R990
10R 1/4W
BAV21
LL4148 +
D957 C981
33uF 50V
R930
R984
4.7M
IC931 47R
12K
5 4
R982
S D
6
ZD981
S
BZX79-C15
7 2
S BP/M
8 1
ZD930
S EN/UV
BZX79-C9V1
R989
10R
TNY 277
C983
0.1uF
R988
1
470K
BC857C
Q931
ZD931
R965
R931
BZX79-C5V1 6.8K
120K
R9128
1R 1/8W 5%
C991
BAV21
1nF 1R 1/8W 5%
D959
R9127
R9129
C998
5K1
D963
220N 50V
BAV21
+400V
MBRF20100CT
!
D955
2
T902 HD955
EFD43 Heatsink
Q951 +
2SK4096 7 1 2
C943
1000uF 35V
R961
8
51K
PRI
3
9
C954
Q952 100PF 1KV
2SK4096 10
D956
5 SB240
1 2 +12V_F
R963
11 1 2
C941
51K
22NF 630V
D962
1 SB240 C946
+
12
C955 330uF/25V
100PF 1KV
62g
R938 D984
D983
100R SR210
SR210
R977
+
10K
C992
330uF/50V
FB985
75R W6RH3.5X10X1.0 D987 D988
D986
+24V_A
CN902 BAW56 BAW56 BAW56
1 INVERTER-ON-OFF
2
3 +12V
BRIGHT-ADJ
4
R9111
5
10K
6
7
8
9
10
11
STANDBY _IN
12
2SK2381 2SK2381
13
R925 Q992 Q993
+5VSB
3K3 R928
3K3
HEADER 13
R926
HQ992 R923
Heatsink
33R 33R
1 2
1 1
IC992 IC993
KIA2431AP KIA2431AP
R924 R927
11.5R 1/2W 11.5R 1/2W
CN903 CN904 BC857C +12V
3 Q933 2
+60V
1 1
2 2
3 3
LED1 LED5 R942
4 LED2 LED6 4
470R
5 LED3 LED7 5
6 6
LED4 LED8
7 7
10N 50V
R943
C996
3K3
BC847C
Q904
R999
HEADER 7 HEADER 7
3K3
Q905
BC847C R952
R948
1K5
22K
151
LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320
HD935
Heatsink
1 2
FB980
! 1 2 1 2
Bead C984
T901 10nF/100V
1 10 +5VSB
9 1
2
+5V
3 3
L980
1000uF 10V
D935 3.5uH
C985
+ + +
SRF1060
2 8
C986
47uF 25V
C987
7
1000uF 10V
4 6
5
EF-20
!
R983
470R
IC932 R995
3.3K
TCET1103G
R991
12K_1%
R985
10K
C989
R993
0.1uF 27K_1%
10K
IC982 R932
TL431 R992 Q989
BC847C
18K_1%
C993
10N 50V
HQ991
Heatsink
1 2
D985
MBRF10100CT
+24V
L907 2
ER28
R994 Q991
+ +
4K7 TK12A10K3 C945
100uF/100V
BC847C
C956
Q906 470pF/1KV
ZD984
2 1
BZX79-C15 FB986
R9120
R9113
D960
L931 22R
BAV21 330R
R996
3.5uH +12V
R920 10K
100R R906
0R15 1% 1W
R904
R918
0R15 1% 1W
330R
+
R978
C947 4K7
47uF 25V
330nF
IC902 R997
C912 R9100
47K_1%
15K SG6961
0R05 1/4W
R9103
R922
2.2K _1% 220K
R921 R914
3.3nF
C948 15K
C938
C917
+60V
100pF
100nF
R9107
22K
Q903
D989
BAW56 2N7002
1U 25V
R9116
C997
R9110
100R
33K
R9109
Q902
10K
R9112 BC847C
D990
3K3
LL4148
R9114
1K5
2SK2381 2SK2381 2SK2381 2SK2381
Q994 Q995 Q996 Q997
R949 R9102
R941 R950 R944
3K3
3K3 3K3 3K3 3K3
R929 R954
R951 R974
33R 33R 33R 33R
1 1 1 1
IC995
IC994 IC996 IC997 IC998
KIA2431AP KIA2431AP KIA2431AP KIA2431AP KIA2431AP
R940 R953 R976 R1000
11.5R 1/2W 11.5R 1/2W 11.5R 1/2W 11.5R 1/2W
HQ994 HQ997
Heatsink Heatsink
1 2 1 2
BRIGHT-ADJ
INVERTER-ON-OFF
R9108
3K3
STANDBY _IN
C950
100uF/100V
FB987
BEAD
C951
+
4.7uF/160V
2SK2381 2SK2381
Q998 Q999
R9105
3K3
R9119
R9118
33R 33R
1 1
IC999
KIA2431AP
R1001 R1002
11.5R 1/2W 11.5R 1/2W
HQ999
Heatsink
1 2