Power Supplies - Samyung SI-30 Service Manual

9-8 POWER SUPPLIES

1
D
F1
24V_IP
FUSE3A
0V_IP
C
12V L50 1uH
B
C137
100/25(AL)
A
H1 H2 H3 H4 H5 H6 H7 H8
HOLE HOLE HOLE HOLE HOLE HOLE HOLE HOLE
1
2
C150
2200p240VAC
D10 C177 C211
SMCJ24A 330n 330n
C146
L45
330n
590uH
C332
2200p240VAC
12V L53
1 A
1uH
R218 R135
120R 3K9
R136
1K
C140
10n
IC11
L44
LM2670S-ADJ
FB CB
2 VIN 1
ON/
GND
OFF SYNC
22uH
C212 D13 C138
C213
10u MBRS2040LT3 100u/25(AL)
100/25(AL)
R244
C37
1K
100p
PSU_SYNC
PSU_SYNC
PL16_1
2
3
POWER+ OUT+
C147 C210 C208
100/50 10n 100/25(AL)
POWER- OUT-
R219
220R
R202
1K
C220
10n
IC22
L52
LM2670S-ADJ
FB CB
2 2 VIN 1
B
ON/
GND
OFF SYNC
22uH
D14 C218
C217 C221
MBRS2040LT3 100/25(AL)
100/25(AL) 10n
IC22_7
R243
C40
1K
100p
PSU_SYNC
L51 1uH 6V
6V
C215 C216
10n 10n
R220
C226 C227 10K
100/25(AL) 10n(NF)
C139
C214
100u/25(AL)
100/25(AL)
1 2 PL16_2
PL16
HEADER_2X1
1 2
PL17
HEADER_2X1
3
4
12V
FS2 1.5A
1 2
PL16_1
PL16_2
D1
MBRS2040LT3
C209
100/25(AL)
R201
1K5
3V3
L54 1uH
C223
100/25(AL)
C224 C225
10n 10n
C219
C222
100/25(AL)
100/25(AL)
5V
5V
5V
IC2 L55 1uH
LP3876-5.0
2 VIN 4 1 2
VOUT
C230 C228 C231
1 /SD 5
SENSE
10n 100/25(AL) 10n
GND GND
C229
100/25(AL)
4
D
C
B
A