Dc/Dc (Main Pcb) - Samsung SMX-K40BN Service Manual

Schematic Diagrams

7-3 DC/DC (Main PCB)

F101
32V/1.25A
UNREG UNREG
2.62V
F102
32V/1.25A
R103
220K
R104
7.5K/F
R110
57.6K
R105
100K
1000nF
1000nF
C101
1000nF
R106
20K
R107
150K
C102
0.1nF
R112
57.6K/F
R108
R101 R102
220K
100K 57.6K
7-4
3.02V
1.29V
4.98V
C107
R115 R120 22/6.3V
R109
100K 1M/F
220K
L103
4.7uH
R116 R121
34K/F
150K/F
L105
4.7uH
D101
RB491D
R117
R111 R122
220K
100K 220K
23
INV3
24
INV4
25
INV2
26
GND
C103
IC101
27
VREGA
28
VCCOUT BD9757MWV
C104
29
INV5
30
VREF6
31
NON6
32
INV7
33
INV8I
6 1
5 2
4 3
R113 R118
34K/F 1M/F
12.0V
9.85V
R114 R119 R123
-7.5V
20K 34K/F 470K/F
3.02V
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C109
22/6.3V
C108
10000nF
11
STB4
10
STB2
9 L106
HX4
10uH
8
LX4
C115
7 L107
22/6.3V
PGND24
4.7uH
6
LX2
C116
5
HX2 22/6.3V
4 L108
HX5
C117
4.7uH
22/6.3V
3
LX5
2
PGND5
1
STB5
C112
10000nF
C110
10000nF
D102 C113
1SS416 10000nF
C114
D103
1SS416 10000nF
VCC_1.2V
VCC_5V
VCC_M5V
L109
C118
10uH
10000nF
IC103
RP130N471D
VCC_CAM5V
1 VDD VOUT 5
2 GND
C123
3 CE NC
4
1000nF
CAM_DD_ON
VCR_DD_ON
VCC_3V
IC102
R1114N181D
VCC_1.8V
1 IN
OUT 5
C121
2 GND
1000nF
3 Cout PASS 4
C120
100nF
VCC_2.5V
PI_LCD3V
Q104
UMF5
LCD3V
6
1 Tr1
R1
2 5 C122
R2 1000nF
4
3
DTr2
R128
R129
22K
3.3K
LCD_ON
Q102
UMF5
VCC_CAM3V
6
1 Tr1
R1 C119
2 5
R2 1000nF
4
3
DTr2
R125 R127
22K
3.3K CAM_DD_ON
VCC_A3V
CAM_DD_ON
LCD_BL_ON
BL10V_FB
PI_BL10V_FB
VCC_CCD-7.5V
PI_LCD_BL10V
VCC_BL10V
VCC_CCD12V
PI_GND2 PI_GND4 PI_GND8
PI_GND6
PI_GND1 PI_GND3 PI_GND5PI_GND7
*TO AFE
VCC_CCD12V
VCC_CCD12V
VCC_CCD-7.5V
VCC_CCD-7.5V
VCC_CAM3V
VCC_CAM3V
*TO LENS
VCC_CAM3V
VCC_CAM3V
VCC_CAM5V
VCC_CAM5V
VCC_M5V
VCC_M5V
*TO DSP
VCC_2.5V
VCC_2.5V
VCC_1.2V
VCC_1.2V
VCC_A3V
VCC_A3V
*TO
OneNAND/DDR
VCC_3V
VCC_3V
*TO STORAGE
VCC_1.8V
VCC_1.8V
VCC_3V
VCC_3V
*FROM/TO
SYSCON
CAM_DD_ON
CAM_DD_ON
VCR_DD_ON
VCR_DD_ON
LCD_ON
LCD_ON
LCD_BL_ON
LCD_BL_ON
VCC_3V
VCC_3V
VCC_5V
VCC_5V
*TO AUDIO
VCC_3V
VCC_3V
VCC_1.8V
VCC_1.8V
*FROM/TO
JACK
USE TOP(CHARGE)
UNREG
UNREG
USE TOP(ZOOM)
VCC_3V
VCC_3V
USE LCD
VCC_BL10V
VCC_BL10V
LCD3V
LCD3V
BL10V_FB
BL10V_FB
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