S3.1.2. Power Supply Block Diagram (2 - Panasonic DMR-BW500EF Service Manual

S3.1.2. Power Supply Block Diagram (2)

IC6801 IC6802
(REG. +5V) (USB HIGH SIDE SWITCH)
1 V IN VOUT 3 4 V IN
ON: H
2
P STANDBY H
A
IC7503
(BATTERY BACKUP SWITCHING)
XSW5VOUT 8
7 V IN
V OUT 6
V BATIN 3
RESET 5
IC1653
(REG. XN +4V)
5 V IN VOUT 4
H :ON
1
IC1651
(REG. X XN +3.3V)
5 V IN VOUT 4
H :ON
1
QR1651
(P STANDBY
IP7502
(IC PROTECTOR)
B 1 2
P6804- 1
V OUT 5
(V BUS)
TO
DUSB_BUSP_EN
P6803 P59301
EN 1 DIGITAL
4
P.C.B.
TO
XN+5V P7501 P7201
FRONT (R)
14
P.C.B.
IC7501
(+5V)
TO
XRESET XRESET
TIMER
12
IC7501- BLOCK
SECTION
XN+4V TO
P6703 P58006
DIGITAL
7
P.C.B.
QR1652
( L :ON)
Q1651
( H :ON)
FROM
P STANDBY H
TIMER
H :ON) IC7501- 44 BLOCK
SECTION
AV IO P.C.B.
X SW+13V P6704 P58007 P58002 P3003
10,11 1
X SW+5.8V P6704 P58007 P58002 P3003
8,9 13
IC3004
(REG. PS +5V)
4 V IN VO 5
ON
3
QR3701,QR3702
CONTROL
P STANDBY H P6703 P58006 P58002 P3003
17 3
UNREG 38V P6703 P58006 P58003 P3004
TU7801(+30V)
23 1
D7801
D7501
T7501
D7507
(DC/DC CONVERTER)
D7905
5
2
6
QR7511
( L :ON)
D7506
7
QR7510
( H :ON)
IP7501
(IC PROTECTOR) TU P ON
IC7501-
1 2
S-7
IC4002
(REG. PS +11.6V)
IC3001
1 V IN VOUT 3 (+11.6V)
H :ON
2
IC7402
(BOOSTER +5V) IC4001
(REG. AU +5V)
IC7401,
IC3001,IC3002
4 V IN VO 5 TU7801
IC3003
(+5V)
ON
(+5V) 1 V IN VOUT 3
3 H :ON
2
EXT CTL
IC3001-
QR7507
Q7507
L ( :ON)
( H :ON)
Q7506
( H :ON)
D7904
HEATER+
9
3
QR7502
(FILAMENT
D7503 L :ON)
+B
1
8
HEATER-
D7502
H
43
XN+3.3V
FL+3.3V
X SW+5.8V
P3003 P58002
AU+5V TO DIGITAL
12
P.C.B.
36
QR7508
( H :ON)
POWER SAVE L
IC7501- 41
FROM
TIMER
BLOCK
SECTION
FILAMENT ON L
IC7501- 63
FL F(+) P7501 P7201
4
FR F(-) P7501 P7201
2
TO
FRONT (R)
P.C.B.
FL VP P7501 P7201
6
TO
P6703 P58006
DIGITAL
4
P.C.B.
P7501 P7201
10
TO
P7501 P7201
FRONT (R)
12 P.C.B.
DMR-BW500EF
Power Supply
Block Diagram(2/2)