Hitachi Alpha L42A404, Service Manual

Page: 26 / 72

L42A404
26
Power Board
715G3261P02000003S
!
!
!
CN902
CONN
L
1
N
2
!
CN904
CONN
1
2
3
4
5
6
7
8
9
10
11
12
13
12V
PS_ON
Q903
STP10NK60ZFP
57G 667 50
5V
Q902
STP10NK60ZFP
57G 667 50
!
R924
4.7K 1% 1/8W
R911
10K 1/8W
L904
3.0uH +-10%
+
C908
10uF
IC902
EL817MA
56G 139 7 1
1
2
4
3
24V
R917
10K 1/8W
C930
100N 50V
C901
680pF 250V
B+
R929
5.1K 1% 1/8W
C906
680pF 250V
R920
2K 1/8W
C913
1uF
C926
1N
R926
3K 1% 1/8W
HS3
HEAT SINK (IC901)
1
2
CN905
CONN
1
2
3
4
5
6
7
8
9
10
11
12
R923
0R05 1/8W
CN903
CONN
1
2
3
4
5
6
7
8
9
10
11
12
13
R909
30K 1% 1/8W
C927
100N
R930
2K 1% 1/8W
VCC1
!
L901
20.0MH
73L 174 49 LG
1 4
2 3
R975
0R05 1/8W
R925
24K 1% 1/8W
C924
100PF/2KV
C916
1N
L903
20.0MH
1 4
2 3
R928
56K 1% 1/8W
R919
7.5R 1/4W
R905
2M 1% 1/4W
C923
100N
R976
0R05 1/8W
R907
2M 1% 1/4W
R906
2M 1% 1/4W
C907
1N 50V
C919
22pF/3KV
IC903
KIA431A-AT/P
56G 158 12
+
C922
470UF 25V
D905
EG01A
+
C910
1000UF 35V
!
C909
0.1uF
+
C911
1000UF 35V
L902
2.0MH
73L 174 52 LG
1 4
2 3
C915
0.033uF 1KV
R927
20K5 1/8W 1%
D906
SBT15006JST
93G 60298
1
2
3
R904
0.1 ohm
+
C912
470UF 35V
C920
22pF/3KV
!
D902
IN4148
R922
150R 1/8W
D904
IN4148
R921
1K 1% 1/8W
R910
47R 1/8W
C914
470N
R
912
5.
1K 1/
4W
!
R
913
5.
1K 1/
4W
L905
3.5uH
+
C928
4.7uF
R
914
5.
1K 1/
4W
+
C921
1000uF25V
12V
R
915
5.
1K 1/
4W
C918
1uF 25V
R
918 2K 1/
8W
R908
2K 1/4W
!
C917
1uF 25V
R916
47R 1/8W
errors or ommissions.
NOTES:
This schematic,we can not guarantee the accuracy of this information,
after the date of publication and disclaims liability for changes ,
C937
100N
!
VCC1
!
!
R931
1K2 /8W 1%
+
C934
100uF/450V
PS_ON
+
C936
47uF 25V
!
R946
1K 1/8W
IC905
EL817MA
56G 139 7 1
1
2
4
3
C945
100N
D910
IN4148
D901
FMXA-1106S
Vcc
VCC1
R943
5K1 1/8W
C943
1N
R947
220R 1/8W
IC906
ICE2PCS02G
56G 379104
GND
1
ICOMP
2
ISENSE
3
VINS
4
VCOMP
5
VSENSE
6
VCC
7
GATE
8
R948
2K7 1/8W
R938
10K 1/8W
R942
51K 1/8W
C932
NC
R949
2K 1/8W
R932
0.1R 3W
!
R934
0.1R 3W
C941
1N
ZD902
MTZJ T-72 15B
1
2
R935
1M 1% 1/4W
R939
1M 1% 1/4W
Q905
2N3904S-RTK/PS
R944
1M 1% 1/4W
FB902
BEAD
1 2
C931
1uF/520V
R941
220R 1/4W
R940
20K 1/8W
D909
1N5408-E
Q901
STW20NM60
57G 667 25
2
1
3
C942
4N7
5V
R945
22K 1% 1/8W
R936
33R 1/8W
C940
10N
C938
470N
R933
51R 1/8W
C905
10NF1KV
C939
1uF 25V
T902
POWER X'FMR
3
4
6
7
8
9
10
11
12
13
14
!
+
C933
100uF/450V
C904
0.47uF 275V
-
+
BD901
KBJ1008
93G 50460 49
2
1
3
4
C903
0.47uF 275V
IC904
SSC9502S
56G 379112
Vsen
1
Vcc
2
FB
3
GND
4
Css
5
OC
6
RC
7
Reg
8
RV
9
COM
10
VGL
11
NC
12
NC
13
VB
14
VS
15
VGH
16
NC
17
NC
18
HS2
HEAT SINK (D911)
1
2
!
HS5
HEAT SINK (Q902,Q903)
1
2
!
HS6
HEAT SINK (D903,D906,D907)
1
2
FB905
BEAD
1 2
C944
470pF/250V
L906
600uH 10%
1 2 12 11
CN901
SOCKET
1 2
3
!
!
C964
470pF/250V
Q904
KTD1691/P
57G 761 7
!
C952
0.1uF
C949
2N2 500V
L907
3.5uH
FB906
BEAD
1 2
!
R968
1.2R 2W
C954
NC
D911
SBT15006JST
93G 60298
1
2
3
IC908
KIA431A-AT/P
56G 158 12
IC907
EL817MA
56G 139 7 1
1
2
4
3
R956
47R 1/4W
D916
IN4148
Q906
PMBS3904
R950
4.7 OHM 1W
D913
FR107
R957
47R 1/4W
R967
620K 1/8W 1%
24V
5V
R962
220R 1/8W
Vcc
+
C950
330uF 16V
D907
FMWN-2308
1
2
3
033G8105 3A X *2
+
C956
100uF 50V
ZD906
MTZJ12B
1
2
R901
330K 1/4W
D919
IN4148
D918
IN4148
12V
D917
IN4148
R902
330K 1/4W
C946
0.1NF 2KV
+
C958
10uF
!
C947
0.1NF 2KV
BO
R903
330K 1/4W
R958
1M5 1/4W 1%
R961
1M5 1/4W 1%
R964
1M5 1/4W 1%
ZD904
MTZJ T-72 15B
1
2
D914
PR1007
93G110050152T
C961
220N
R963
4.7M 1/4W
ZD903
MTZJ T-72 27B
1
2
C960
220N
ZD905
MTZJ5.6B
1
2
R970
2K 1/8W
C959
4N7
!
R965
2.4K 1% 1/8W
D903
FMWN-2308
1
2
3
R951
100K 1/4W
R952
100K 1/4W
ZD901
MTZJ T-72 15B
1
2
R953
100K 1/4W
R954
100K 1/4W
R971
2.2K 1% 1/8W
R969
100R 1/8W
R955
3.3R 1/4W
FB901
BEAD
1 2
C963
100N
R972
1K 1/8W
C929
470pF/250V
!
+
C951
1000uF 16V
C955
0.1uF
R966
1K 1/8W
T901
POWER X'FMR
80GL52T 5 L
1
2
3
5
4
7
6
9
10
C948
NC
!
FB903
BEAD
1 2
067G 42Z10115K *2
FB904
BEAD
1 2
RV901
NC
!
F901
FUSE
!
BO
IC901
A6069H
56T 379121
S/OCP
1
BR
2
GND
3
FB/OLP
4
VCC
5
D/ST
7
D/ST
8
!
067G 42Z10115K *2
t
NR901
NTCR
1
2
!
B+
C902
470pF/250V