Hitachi SK-HD1300-S3 Service Manual page 111

10uH/2.5A
L901
7E08L-100M
ZHD6K:900mA
UNREG+12V
R905
0/J6
A.GND
R906
R901
A.GND 0/J6 SW_GND1
0/J6
R902
0/J6
R903
A.GND D.GND
0/J6
R904
0/J6
PGOOD1
D+5V_ON/SS1
D+3.3V_ON/SS2
IC901
LM2642
1 28
KS1 RSNS1
2 27
ILIM1 SW1
3 26
COMP1 HDRV1
4 25
FB1 CBOOT1
5 24
PGOOD1 VDD1 C913
6 23 0.1U/Z3
UVDELAY LDRV1
7 22 C912
VLIN5 VIN
50V1U/EMK
8 21
SGND PGND
9 20
ON/SS1 LDRV2
C914
10 19
ON/SS2 VDD2 0.1U/Z3
11 18
FB2 CBOOT2
12 17
COMP2 HDRV2
13 16
ILIM2 SW2
14 15
KS2 RSNS2
SW Freq:300kHz
5V
R915
4R7/J3
R912
SW_GND1
0/J6
D
G
S
10uH/2.5A
L902
7E08L-100M
D+5V
D
FB:+1.238V
G
S
SW_GND1
S
G
FB:+1.238V
D 3.5uH/9.3A
L903
3.5UH/CDRH127/LD
1 2
D+3.3V
S
G
Ron:12m ohm
10A/30V
D
C931
100P/J3
R932
FB:+0.8V 100K/J3
2.5V REG
IC902
C1010
C933
0.1U/Z3
6.3V100U/TPB
10uH/2.5A
PGOOD3
L906
7E08L-100M
R927
1M/J3
C919
1000P/K3
LTC3412 C1008
6.3V100U/TPB
R919 R940
0/J6 0/J6
A.GND
C1012
0.1U/Z3
DGND-A
C932
100P/J3
R931 R939
180K/D3 47K/D3
2.5V REG
IC903
C1011 C934
0.1U/Z3 6.3V100U/TPB
10uH/2.5A
PGOOD4
n.u./7E08L-100M
R928
1M/J3
C1009
LTC3412
n.u. 6.3V100U/TPB
R918 R941
n.u.
0/J6 0/J6
C1013
0.1U/Z3
DGND-B
10uH/2.5A
L908
7E08L-100M
D+5VOUT
ZHD6K:600mA
D.GND
1.8uH/4900mA
L909
7E08L-1R8N
D+3.3VOUT
ZHD6K:2000mA
D.GND
10uH/2.5A
L910
7E08L-100M
D+1.7VOUT
ZHD6K:750mA
D.GND
SW_GND1
n.u.
10uH/2.5A
L907 L911
N.U/7E08L-100M
D+3.3VOUT
D.GND
SW_GND1
SK-HD1300-S3
POWER-SK1080P (PT-X3043B) (1/3)
SCHEMATIC DIAGRAM
C a p a c i t o r s
P X H
6 . 3 φ 6 . 3 V 8 2 U
8 φ 6 . 3 V 2 2 0 U 1 0 V 1 5 0 U
1 0 φ 1 6 V 1 8 0 U 2 0 V 8 2 U
P X A
1 0 φ 2 5 V 3 9 U
C a p a c i t o r s
H 6 : 5 0 v 2 1 2 5 T y p e
E 6 : 2 5 v 2 1 2 5 T y p e
H 3 : 5 0 v 1 6 0 8 T y p e
C 3 : 1 6 v 1 6 0 8 T y p e
R e s i s t o r s
J 8 : ± 5 % 3 2 1 6 T y p e
J 6 : ± 5 % 2 1 2 5 T y p e
J 3 : ± 5 % 1 6 0 8 T y p e
D 3 : ± 0 . 2 5 % 1 6 0 8 T y p e
N . U : N o t u s e d
6-63