S-4
S3. Block Diagram
S3.1. Power Supply Block Diagram
1
2
3
IC3601
(+3.3V)
TO
DIGITAL
P.C.B.
FROM
DIGITAL
P.C.B.
TO
BD/ DVD
DRIVE
TO
DIGITAL
P.C.B.
TO
FRONT (R)
P.C.B.
FL F+
FL F-
FL VP
(FL ON
:ON)
FB
S
G
FET
FET
CS
EXT
D
7
5
6
8
4
Q1104
(REG. DR +5V)
1
2
3
8
V52
5
7
VIN
1
IC1103
(DC-DC CONVERTER)
3
D1110
(ERROR VOLTAGE DET.)
Q1107
(FL ON
:ON)
1
2
R
IC1101
(ERROR VOLTAGE DET.)
K
A
18
P7201
P7501
X SW +5 .8V
X SW +3.3V
X SW +13V
X SW +5 .8V
X SW +3.3V
DR +5V
DR +12V
FL +3.3V
17
P7201
P7501
4
P7201
P7501
12
P7201
P7501
1
P1601
4
P1601
7,8
P58007
P1102
19
P3001
P58002
19
P4001
P58003
21
P4001
P58003
18
P3001
P58002
23
P4001
P58003
2
P58003
P4001
P58003
P4001
20
22
P58003
P4001
9
P58007
P1102
5,6
P58007
P1102
20
P58005
P7503
6
P58004
P7504
14
P7201
P7501
6
P7201
P7501
DMP-BD50EG
Power Supply Block Diagram
H
H
QR1105
H
QR1101
( P STANDBY
:ON)
Q1021
(POWER CONT.)
D
S
G
6
8
7
5
1
2
3
Q1102
(DR +12V OUT)
4
H
QR1102
(DR P ON
:ON)
(FEED BACK)
Q1023
1
2
3
4
(FEED BACK)
Q1022
1
2
3
4
(SWITCHING IC)
F/B
Z/C
GND VCC
D1026
D1027
D1125
D1022
D1028
VIN
IC1021
7
9
3
1
4
5
2
N
A
RECTIFIER
D1006, C1014
HOT
COLD
6
5
3
1
2
4
12
13
16
17
11
10
9
8
POWER
TRANSFORMER
T1001
VA1001,
L1001, L1002
F1001
ABSORBER
SURGE
AND
SUPPRESSOR
SURGE
P1001
AC SOCKET
D1029
IC1651
(REG. +3.3V)
D1651
IC7501 (+3.3V)
V IN
5
V OUT
4
: ON
H
ON :
H
1
IC1102
(REG. +2.5V)
V IN
8
V OUT
1
: ON
H
5
GND
4
IC1653
(REG. +4V)
IC7503
(VOLTAGE DET.)
IC7504 (+13V)
V IN
5
V OUT
4
: ON
H
1
VDD
2
OUT
1
GND
H
3
IC1104
(REG. DR +5V)
V IN
2
V OUT
4
VC
1
IC3101
(REG. +5V)
V IN
1
V OUT
6
3
IC4001
(REG. +5V)
Q4004
QR4003,
QR4004
IC3005, IC3401
(+5V)
V IN
1
V OUT
3
ON:
2
40
L
IC7501-
P SAVE
29
L
IC7501-
DR P FAIL
91
H
IC7501-
DR P ON
REGULATOR
AU +9V
REGULATOR
AU -9V
CONTROL
2
L
L
IC7501-
FL ON
16
H
IC7501-
P STANDBY
H
P STANDBY
REG. -21V
IP7502
2
1
IP1103
2
1
IP1105
Q1106
REG. -12V
1
2
IP1102
1
2
IP1101
Q7506
QR7502
(FL ON
:ON)
D1108
D1107
Q1101
1
2
+3.3V
96
IC7501-
FL ON
H
X SW +5 .8V
X SW +13V
A DAC +5 V
AUDIO +9V
AUDIO -9V
ST +3.3V
X SW -12V
P STANDBY
H
AV OUT P.C.B.
Q1651, QR1652
QR1651
D7510
POWER P.C.B.
Summary of Contents for DMP-BD50EG
Page 5: ...5 2 2 Precaution of Laser Diode ...
Page 7: ...7 3 Service Navigation 3 1 Service Information ...
Page 8: ...8 4 Specifications ...
Page 9: ...9 5 Location of Controls and Components ...
Page 30: ...30 9 2 6 Grease ...
Page 32: ...32 10 1 2 Checking and Repairing of BD Drive ...
Page 33: ...33 10 1 3 Checking and Repairing of AV Out P C B ...
Page 34: ...34 10 1 4 Checking and Repairing of Digital P C B ...
Page 44: ...S 9 ...
Page 66: ...S 31 ...
Page 74: ...S 39 34 4 4 4 DMP BD50EG Power Timer P C B Foil Side 4 4 21 20 19 18 17 16 15 14 13 12 11 ...