Hitachi L42A404 Service Manual page 26

Power Board
715G3261P02000003S
!
BO
BD901
KBJ1008 C931
1uF/520V
93G 50460 49
CN902
2 3
CONN
R932
2
0.1R 3W
N
1
L
R934
0.1R 3W
!
L903
20.0MH R941
220R 1/4W
!
C904 R943
0.47uF 275V
5K1 1/8W
!
L902
2.0MH
73L 174 52 LG
! !
C906
C901
680pF 250V 680pF 250V
!
B+
L901
20.0MH
73L 174 49 LG
!
C903
0.47uF 275V
! ! !
!
R901 R902 R903
NR901
330K 1/4W 330K 1/4W 330K 1/4W
NTCR
t
!
RV901
!
NC
F901
! FUSE
CN901
2 1
033G8105 3A X *2
SOCKET
NOTES:
This schematic,we can not guarantee the accuracy of this information,
after the date of publication and disclaims liability for changes ,
errors or ommissions.
HS2 HS3
HEAT SINK (D911) HEAT SINK (IC901)
1 1
2 2
HS5 HS6
HEAT SINK (Q902,Q903) HEAT SINK (D903,D906,D907)
1 1
2 2
!
D909
1N5408-E
D901
FMXA-1106S
!
C932
NC
L906
600uH 10%
D910
R933
51R 1/8W IN4148
!
VCC1
1
R936
R938 STW20NM60
33R 1/8W
57G 667 25
10K 1/8W
+ C937
100N
C936
47uF 25V
R940
20K 1/8W
1 8
GND GATE
2 7
ICOMP VCC
C943
3 6 1N
ISENSE VSENSE
R942
4 5
VINS VCOMP
51K 1/8W
IC906
ICE2PCS02G
56G 379104 C938
C940 C942 C941 C939
VCC1
470N
10N 4N7 1N 1uF 25V
MTZJ T-72 15B
R904
R906
0.1 ohm 2M 1% 1/4W
R907
R905
2M 1% 1/4W 2M 1% 1/4W
C907
R909
1N 50V
30K 1% 1/8W
1 18
VCC1
Vsen NC
2 17
+
R908
Vcc NC
C908 C909
2K 1/4W
3 16
10uF
0.1uF
FB VGH
4 15
GND VS
5 14
Css VB
6 13
OC NC
7 12
C914
RC NC
470N
8 11
Reg VGL
9 10
RV COM
IC904
SSC9502S
56G 379112
D905
R919
EG01A
7.5R 1/4W
C917
1uF 25V
C919
22pF/3KV
C916
1N
R921
1K 1% 1/8W
C926
1N
FB905 !
BEAD
C944
470pF/250V
1 2
FB903 !
BEAD
1 2
!
C929
470pF/250V
1 2
C902
FB901
470pF/250V
BEAD
1 2
FB904
BEAD
L42A404
B+
FB902
1 2 1 2
R950
BEAD
FB906 4.7 OHM 1W
! !
+ + BEAD
C905
10NF1KV C933 C934
R935 100uF/450V 100uF/450V
1M 1% 1/4W
067G 42Z10115K *2 067G 42Z10115K *2
R958
R939
1M5 1/4W 1%
1M 1% 1/4W
BO
Q901
R961
1M5 1/4W 1%
R944
1M 1% 1/4W
R963
R964 4.7M 1/4W
1M5 1/4W 1%
R945
22K 1% 1/8W
R931
1K2 /8W 1% R967
620K 1/8W 1% C960
220N
Q904
KTD1691/P R968
57G 761 7 1.2R 2W
Vcc
R946
1K 1/8W
5V
R947
220R 1/8W
R948
ZD902
!
2K7 1/8W
IC905
R949
EL817MA Q905 C945
56G 139 7 1 2N3904S-RTK/PS 2K 1/8W
100N
!
!
T902
Q903
POWER X'FMR
STP10NK60ZFP
12
D902
57G 667 50
IN4148
R975
9
0R05 1/8W
R911
R910
8
10K 1/8W
47R 1/8W
3
4
14
ZD901
6
C918
7
1uF 25V MTZJ T-72 15B
!
11
D904 10
Q902
IN4148
STP10NK60ZFP
57G 667 50
13
R916 R976
47R 1/8W R917
0R05 1/8W
10K 1/8W C915
0.033uF 1KV
2
C920
22pF/3KV
D906
SBT15006JST
93G 60298
C924
100PF/2KV
R922
150R 1/8W
R924
4.7K 1% 1/8W
R925
R923
24K 1% 1/8W
C927
0R05 1/8W
100N
+
!
C964
C928
470pF/250V
4.7uF
IC902
EL817MA
56G 139 7 1
IC903
KIA431A-AT/P
56G 158 12
26
1
!
R951 R952 C946
100K 1/4W 0.1NF 2KV
2 6
100K 1/4W
C948 7
NC R954 C947
9
R953 100K 1/4W 0.1NF 2KV
3 10
100K 1/4W
4
R956
D913
47R 1/4W
FR107
5
T901
R955 POWER X'FMR
3.3R 1/4W R957
80GL52T 5 L
47R 1/4W
D914
C954
PR1007
NC
IC901
93G110050152T
1 8
D916
S/OCP D/ST
Vcc
2 7
R962
BR D/ST
220R 1/8W
3
GND IN4148
+
4 5 C956
+
FB/OLP VCC
100uF 50V
C955 C958
A6069H
0.1uF 10uF
56T 379121
R966
1K 1/8W
ZD906
C959
MTZJ12B
4N7
!
IC907
EL817MA R970
2K 1/8W C961
56G 139 7 1
220N
PS_ON
IC908
KIA431A-AT/P
56G 158 12
D907
FMWN-2308
2
L904
3.0uH +-10%
D903
FMWN-2308
2
+ + +
C912
C910 C911 470UF 35V
1000UF 35V 1000UF 35V
12V
L905
3.5uH
+ +
C922
C921
C923
470UF 25V
1000uF25V
100N
R927
20K5 1/8W 1% R928
56K 1% 1/8W
R926
3K 1% 1/8W
R929
5.1K 1% 1/8W
C930
100N 50V
R930
2K 1% 1/8W
D911
SBT15006JST L907
93G 60298 3.5uH
5V
2
+ +
C950 C951 C952
330uF 16V 1000uF 16V 0.1uF
C949
2N2 500V
24V 12V
R965 ZD905 ZD903 ZD904
2.4K 1% 1/8W MTZJ5.6B MTZJ T-72 15B
MTZJ T-72 27B
D918
D919 D917
IN4148
IN4148 IN4148
R969
Q906 100R 1/8W
R971 PMBS3904
2.2K 1% 1/8W
C963 R972
100N 1K 1/8W
1 1
24V
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11 11
12 12
13 13
C913
1uF
CN904 CN903
CONN
CONN
1
2
3
4
12V
5
6
7
8
9
PS_ON
10
11
R920 12
5V
2K 1/8W
CN905
CONN