Panasonic DMP-BD10PP, Service Manual

Page: 36 / 98

S-4
S3. Block Diagram
S3.1. Power Supply Block Diagram
S3.1.1. Power Supply Block Diagram (1/2)
H
H
H
L
H
H
H
H
H
F
G
H
I
( :ON)
QR7502
D
49
IC7502-
P STANBY
SECTION
BLOCK
TIMER
FROM
77 IC7502-
P SAVE
SECTION
BLOCK
TIMER
FROM
BD/DVD DRIVE
TO
P OFF
P STANBY
X SW+5.8V
X SW+12V
P SAVE
X SW-12V
2
P1507 P1103
D1112
15 IC7701-
VP
SECTION
BLOCK
TIMER
TO
7,8,9,10
P1507 P1103
3
P1507 P1103
( :ON)
Q1109,Q1110
1
48
DP7701- (F-)
DP7701- (F+)
D1122
GND
HEATER-
+B
10
7
5
2
4
1
TRANSFORMER
POWER SWITCHING
DISPLAY HEATER
T1102
( :ON)
QR1102
P1103 P1501 P1507
11,12,13 1
4 18,19,20
P1501 P1507 P1103
6
P1507 P1103
FET
G
2
3
S D
4
(DR+12V OUT)
Q1103
1 5
7
8
6
G
D S
FET 4 2
6
5
1
(REG.X SW+3.8V)
Q1105
3
Sense
Current
Vin 1
ON
PW
2
8
7
6
Drive
Gate
FET
GND
(DC/DC CONVERTER)
IC1103
( :ON)
QR1104
ON
PW
2
G
D S
FET
3
2 6
8
7
5 1
(REG.DR+5V)
IC1104
4
Sense
Current
Vin 1
SS 3
8
7
6
Drive
Gate
FET
GND
(DC/DC CONVERTER)
IC1105
(DC/DC CONVERTER)
IC1106
6
7
8
2
1
ON
PW
Vin
GND
Drive
Gate
FET
Sense
Current
D
G
S
FET
3
2 6
8
7
5 1
(REG.X SW+5.8V)
Q1106
4
D1111
2
3
1
D1105
D1108
D1104
D1107
D1102
GND
VCC 7 Z/C 4
1
2
4
3
(FEED BACK)
Q1108
3 1
2
3
1
4,5
2
IP1110
1
10
9
11
12
2
1
7
4
6
TRANSFORMER
SWITCHING
POWER
T1101
Block Diagram(1/2)
Power Supply
DMP-BD10PP
SOURCE
5
E
C
B
A
(ERROR VOLTAGE DET)
IC1102
MAIN P.C.B. POWER P.C.B.
P1507 P1103
P1507 P1103
1 2
IP1109
COLD HOT
(SWITCHING IC)
IC1101
Z/C
DRAIN FB 9
1
2
RECTIFIER
D1101,C1177
VA1101,L1101,L1102
ABSORBER
SURGE
AND
SUPPRESSOR
SURGE
F1101
P1101
AC INLET