Power Block Diagram (1/2) - Sony MVC-FD85 Service Manual

3-3. POWER BLOCK DIAGRAM (1/2)

FU-146/140
BOARD
J901
BATTERY
TERMINAL
BATT UNREG
1
BATT SIG
S
2
Q001, Q002,
3
Q004 Q003
DC PACK SW
CHARGE
4
SWITCH
CN002
J902
DC IN
LF001
ACV UNREG
1
2
BATT/XEXT
3
CN001
IC001 rh
VCC
18
1.8Vp-p
2.0µsec
17 CT
IC001 rf RT
16
900mVp-p
2.0µsec
20 POW CONT
CTL B
21
22 CTL C,D
REF 2.5V 19 V REF
ZOOM/
RELEASE
UNIT
CN005
D3.2V
ZOOM
4 4 4 6
VR
CN003 CN002
IC001 r;
Note:FD85 model:MVC-FD85
FD90 model:MVC-FD90
16
( ) : Page No. shown in ( ) indicates the page to refer on the schematic diagram.
FC-72 BOARD
BATT SIG
9 1
BATT/XEXT
8 2
DC PACK SW
5 5
FAST CHARGE ON
7 3
INIT CHARGE ON
6 4
CN003 CN002
F004
5 8
F006
6 7 UNREG4
7 6
F002
8 5 UNREG3
9 4
F001
10 3 UNREG2
11 2
F005
UNREG1
12 1
CN004 CN001
IC001 (4-25)
DC/DC CONVERTER
45
VCC OUT
Q004
SWITCHING
L007
46
OUT A
6
+IN A
Q001 T001
SWITCHING
4
SCP:A 8
1
44
OUT B
12
+IN B
13
SCP:B
Q003
SWITCHING
L005
OUT C 40
+IN C 26
Q005-006
1.8V
REG
24
SCP:C Q002
SWITCHING
L004
OUT D 39
REF 2.5V
+IN D 31
29
SCP:D
IC001 el
800mVp-p
800mVp-p
2.0µsec
2.0µsec
3-5
5V
D002
RECT
L016
15V
5
D001
RECT
10.5V
6
Q010
8
EMERGENCY
DETECT
2
-10.5V
3
4.9V
Q009
EMERGENCY
DETECT
L011
L010
L008
Q003,004
RECT
Q014
Q018
3.2V
EMERGENCY
DETECT
Q013,016
4.9V
FDD P 5V
CAM 15V
Q025,028
Q031,034
CAM -7.5V
-7.5V REG
L015
CAM P 5V
REF 2.5V
L012
FDD 4.9V
L009
A 4.9V
D 1.8V
A 3.2V
CAM 3.2V
D 3.2V
Q026,029,035
PANEL -15.3V
-15.3V
REG
Q024,032,036,038
15V PANEL 13.2V
REF 2.5V
13.2V REG
Q027,030,033,037
10.5V PANEL 6.5V
6.5V REG
Q023
SW
L017
PANEL 4.9V
3-6
MVC-FD85/FD90
ST UNREG
BATT SIG
ACV UNREG
BATT UNREG
BATT/XEXT
DC PACK SW
FAST CHARGE ON
INIT CHARGE
CONTENUDE ON
(SEE PAGE
3-7)
BL UNREG
FDD 4.9V
PANEL -15.3V
PANEL 13.2V
PANEL 6.5V
PANEL 4.9V
CAM 15V
CAM -7.5V
CAM 3.2V
D 1.8V
D 3.2V
A 3.2V
A 4.9V
CAM P 5V
FDD P 5V
LCD DD ON
SYS DD ON