Sharp LC-19LE320 Service Manual page 152

LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320
POWER SCHEMATIC DIAGRAM (for 42" )
715G4171
!
1 2
FB905
60R
HBD901
Heatsink
C910
1 2
1U 450V
3 2
ER28
L906
BD901
KBJ608G
TVR14511
RV903 R905
L905 L904
68K
BEAD BEAD C995
!
15P 50V
Vac_in
3 2
SG903 ! SG904
DSP201M-A21F
DSP201M-A21F
4 1
L902
13mH 2A
! !
C902
C903 0.001uF/250V
0.001uF/250V
!
C909
0.001uF/250V
!
R908
C904 33K
470NF
C914
2U2 16V
3 2
SG901 SG902
!
DSP201M-A21F
DSP201M-A21F
4 1
L901
13mH 2A
R903 R902 R901
180K 220K 180K
SCK101R55LSY
NR901 ! ! !
!
C901
470NF
!
!
R959
C933
RV902 RV901
1M
TVR14561 C932 330pF
! ! 0.22uF
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
1
R936
10K
R986
R968
330R
4K7
!
R979 4K7
STBY
R969
4K7
1K
R939
22K_1%
R972
S901 S903 S902 S904
C949
metal plate metal plate metal plate metal plate
0.1uF
R970
22K
3
1
IC953
2
TL431
FMN-1106S FB904
D991
D902
1N5408
1 2
C953
1500PF 1KV
VCC_PFC
TK12A60U
Q901
BAV103
C911
D903 1
330nF
FB984
R916
C960
51K
1 2 470pF/1KV
FB982
R919
Bead
150R
HQ901
Heatsink Vac_in
FB983
1 2
IC901
R935
SG6961
2M2
R917
330R
R934
R915
2M2
0R15 1% 1W
R907
24K
R933
2M2
+400V
R912 R911 R910
1M_1% 1M_1% 1M_1%
ZD931
C913 C915 R913
BZX79-C5V1
330nF 1nF 18K_1%
R909
680R_1%
D951
BAV103
R966
R960
2.2K
100R
2 1
100N 50V R961
IC951
C936 51K
1 16
Css VBOOT
2 15
3 DELAY HVG 14
CF OUT
RFmin 4 13
RFmin N.C. D952
STBY 5 12
BAV103
6 STBY Vcc 11
ISEN LVG
7 10
LINE GND
8 9
R957
DIS PFC_STOP
3K3 R962
C937
L6599D 100R
R967 1U/50V
+
330R
C990
10uF 50V
C942
1nF
+
C934
D954
4U7 50V BAV21
R964
330OHM +-5% 1/8W
D953
BAV21
C935
C940
R956
0.1uF 0.1uF
33K
R955
100K
CN902
VCC_PI
R937
22R
R971
R946
22R
15K
BC328-40
Q945
R945
R975 VCC_PFC 47K
1K5 1/8W
HEADER 13
!
+5V
+12V_F
IC991
TCET1103G
1 2 1 2
R981 ZD983
R947
D958
BZX79-C24
330R
47K_1% LL4148
R980
2.7K
1 2
STANDBY _IN
Q988
BC847C R998
10K
R973
C994
2.2K _1%
10N 50V
+400V
+ + +
+400V
ZD980
P6KE160A
VCC_PI
D980
UG1006
D961 R990
BAV21 10R 1/4W
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
10R
TNY 277
C983
R989
0.1uF
R988
1
470K
BC857C
Q931
R965
C931
R931 6.8K
330nF
120K
R9128
1R 1/8W 5%
C991 R9127
BAV21 1R 1/8W 5%
1nF
D959
D963
R9129
BAV21
C998
5K1
220N 50V
+400V MBRF2060CT
D955
!
2
T902
HD955
EFD43 Heatsink
C943
Q951 +
1000uF 35V
7 1 2
2SK4096
R994
10K
8
PRI
3
ZD984
9
Q952 C954
BZX79-C15
2SK4096 100PF 1KV
10
D956
5
SB240
L931
1 2 +12V_F
3.5uH
22NF 630V
R963
11 1 2
51K
C941
D962
C946
SB240
220uF/25V
C955 1
+
12
100PF 1KV
C947
47uF 25V
62g
R938
100R D983 D984
SR206 SR206
+
R977
10K
C992
330uF/50V
FB985
75R W6RH3.5X10X1.0
D986 D987
+24V_A
BAW56
BAW56
1
INVERTER-ON-OFF
2
3 BRIGHT-ADJ +12V
4
R9111
5
10K
6
7
8
9
10
11 STANDBY _IN
12
2SK2381 2SK2381
13
R925 Q992 R928 Q993
+5VSB
3K3 3K3
R926
R923
33R
HQ992
33R
Heatsink
1 2
KIA2431AP KIA2431AP KIA2431AP
1 1
IC992 IC993
R924 R927
11.5R 1/2W 11.5R 1/2W
CN903 CN904 BC857C +12V
3 Q933 2
+60V
1 1
2 2
3 LED1 LED5 3
R942
4 LED2 LED6 4
470R
5 5
LED3 LED7
6 LED4 LED8 6 BRIGHT-ADJ
7 7 10N 50V
R943
C996
3K3
BC847C
Q904
R999
HEADER 7 HEADER 7
3K3
Q905
BC847C R952
1K5
R948
22K
152
HD935
Heatsink
1 2
FB980
Bead
! 1 2 1 2
C984
T901 10nF/100V
1 10 +5VSB
9 1
L980
2 +5V
3 3
3.5uH
1000uF 10V
D935
C985
SBF1040CT + + +
2 8 C986
47uF 25V
C987
7
1000uF 10V
4 6
5
EF-20
!
R983
470R
R995
IC932
3.3K
TCET1103G
R991
12K_1%
R985
10K
C989 R993
0.1uF 27K_1%
IC982
STANDBY _IN
TL431 R992 Q989
BC847C
R932
18K_1%
10K
C993
10N 50V
HQ991
Heatsink
1 2
D985
MBRF10100CT
+24V
L907 2
P33
Q991
TK8A10K3 100uF/160V
C945
+
10R 1/8W 5%
R9130 C950
100uF/160V
C956
Q906
470pF/1KV
BC847C
2 1
FB986
R9131
10R 1/8W 5%
R9120 D960
Q980
BAV103 R9113
22R
R920 FDPF39N20
2K4 1/8W 1%
+12V
100R
10K OHM
R996
R906
R904 R918
0R1 1W 1%
0R1 1W 1% 330R
+
R978
4K7
R997
330nF 62K 1/8W 1%
R9100 IC902
C912 18K_1%
SG6961
R9103
0R05 1/4W
R922
220K 27K +-5% 1/8W
R914
3.3nF
C948
+60V
C938 C917
R921
100pF 100nF
2.2K _1%
R9107
+
22K
D988 D989 Q903
BAW56 BAW56 2N7002
R9116
C997 100R
R9110
1U 25V
33K
R9109
Q902
10K
BC847C
R9112
D990
3K3
BAV21
R9114
1K5
2SK2381 2SK2381 2SK2381 2SK2381 2SK2381
R941
Q994 R950 Q995 R949 Q996 R944 Q997 R9102
3K3 3K3 3K3 3K3 3K3
R929
R951 R954 R974
33R
33R
33R 33R
KIA2431AP KIA2431AP KIA2431AP KIA2431AP
1 1 1 1
IC994 IC995 IC996 IC997 IC998
R940 R953 R976 R9104 R9106
11.5R 1/2W 11.5R 1/2W 11.5R 1/2W 11.5R 1/2W 11.5R 1/2W
HQ994 HQ997
Heatsink Heatsink
1 2 1 2
INVERTER-ON-OFF
R9108
3K3
+
FB987
BEAD
C951
4.7uF/160V
2SK2381
R9105
Q998 Q999
3K3
R9118 R9119
33R 33R
KIA2431AP
1 1
IC999
R9117
11.5R 1/2W
HQ999
Heatsink
1 2