HC-X1 POWER SUPPLY CIRCUIT(3) BLOCK DIAGRAM
IC3401
(MPEG CODEC)
1
2
3
8
7
IC1621
(SYNCHRONOUS
STEP-DOWN
CONVERTER)
COMP
SS
4
5
FB
BOOT
SW GND
VIN
EN
6
PW +B
IC1711
(DC-DC CONVERTER)
6
5
4
3
1
2
GND
FB
VIN
SW
CTRL COMP
1
2
3
6
8
7
IC1811
(DC/DC CONVERTER)
VOUT
PWM
4
5
FB
ISET
SW GND
VIN
EN
XLR1 9V
PW AUD12V
(To XLR REAR P.C.B.)
E LCD BL IN
(From LCD UNIT)
PW LCD BL OUT
(To LCD UNIT)
R1801
LCD BL ON H
J2
GPIO29
BL CONT
R7
GPIO36
EVF ON H
B18
GPIO145
CH1681
CH1775
FUSE RESISTOR:
(R1701/R1801)
Please check the Fuse Resistor when an output
voltage does not output.
VIN
VOUT
3
1
2
IC4303
(REGULATOR)
VSS
PW AUD9V
VIN
VOUT
3
1
2
IC4510
(REGULATOR)
VSS
CL1611
8
7
6
1
2
IC1611
(SYNCHRONOUS
STEP-DOWN
CONVERTER)
PVCC
EN
5
4
SS
VIN
SW GND
BST
FB
3
8
7
6
1
2
IC1631
(SYNCHRONOUS
STEP-DOWN
CONVERTER)
PVCC
EN
5
4
SS
VIN
SW GND
BST
FB
3
8
7
6
1
2
IC1641
(SYNCHRONOUS
STEP-DOWN
CONVERTER)
PVCC
EN
5
4
SS
VIN
SW GND
BST
FB
3
8
7
6
1
2
IC1651
(SYNCHRONOUS
STEP-DOWN
CONVERTER)
PVCC
EN
5
4
SS
VIN
SW GND
BST
FB
3
8
7
6
1
2
IC1661
(SYNCHRONOUS
STEP-DOWN
CONVERTER)
PVCC
EN
5
4
SS
VIN
SW GND
BST
FB
3
POWER CTL1
POWER CTL3
PW 5V
POWER CTL2
PW REG1.2V
PW HDM1.2V
CL1641
PW DDR1.0V A
PW ANA1.0V A
PW VID1.0V A
CL1651
CL1661
CL1671
CL1774
CL1684
CL1683
PW DDR1.0V B
PW ANA1.0V B
PW FPG1.0V
PW EVF10V
(To EVF UNIT)
PW VID1.0V B
CL1631
PW DDR1.2V A
PW DDR1.2V B
CL1621
PW MOS2.3V
Q1601
QR1601
R1701
CE
NC
VOUT
VIN
5
1
4
3
2
IC1774
(REGULATOR)
VSS
CL1681
CL1682
