S-6
S3. Block Diagram
S3.1. Power Supply Block Diagram
S3.1.1. Power Supply Block Diagram (1)
TO
DIGITAL
P.C.B.
FB
CS
EXT
D
6
8
7
5
G
4
Q14201
(REG. DR +5V)
3
8
5
7
VIN
1
IC14201
(DC-DC CONVERTER)
FB
S
CS
EXT
D
6
8
B
A
7
5
G
4
Q14301
(REG. X SW +5.8V)
3
8
5
7
VIN
1
IC14301
(DC-DC CONVERTER)
R
IC12102
(ERROR VOLTAGE DET.)
C
A
R
IC12201
(ERROR VOLTAGE DET.)
C
A
(RESET)
IC1601
2
1
VDD
OUT
DR+12V
DR+5V
DR+5V
DR+12V
1
P1602
4
P1602
1
P1601
4
P1601
12,13
P58007
P6704
X SW+4.0V
X SW+12.5V
X SW+5.8V
DMR-BW500EF
Power Supply
Block Diagram(1/2)
QR10101
(DR P ON H :ON)
Q10101
(POWER CONT.)
(ERROR VOLTAGE
DET.)
D13201
(FEED BACK)
Q10102
1
2
3
4
(FEED BACK)
Q12201
1
2
3
4
(FEED BACK)
Q12102
1
2
3
4
(SWITCHING IC)
F/B
Z/C
GND VCC
D11307
D11204
D11202
D11302
D10101
IC11201
9
5
VIN 7
3
1
4
2
(SWITCHING IC)
F/B
Z/C
GND VCC
VIN
IC11301
7
9
3
1
4
5
2
A
N
RECTIFIER
D11101,C11107
HOT
COLD
6
5
3
P2
B1
B2
1
P1
P2
NS12
B1
B2
P1
8
12
1
2
3
(ERROR VOLTAGE DET.)
D13102
1
2
3
11
7
POWER
TRANSFORMER
T11301
6
5
3
11
9
1
POWER
TRANSFORMER
T11201
L11101,L11102
VA11101
F11001
ABSORBER
SURGE
AND
SUPPRESSOR
SURGE
P11001
AC SOCKET
D11203
D11303
D11304
H
42
IC7501-
DR P ON
40
IC7501-
HDD P FAIL
TO/FROM
TIMER
BLOCK
SECTION
TO HDD
TO
BD
DRIVE
1
S
2
FB
CS
EXT
D
6
8
7
5
G
3
Q14401
(REG. X SW +4.0V)
3
8
5
7
VIN
1
IC14401
(DC-DC CONVERTER)
1
S
2
1
2
Summary of Contents for DMR-BW500EF
Page 5: ...5 2 2 Precaution of Laser Diode ...
Page 13: ...13 4 Specifications ...
Page 14: ...14 ...
Page 15: ...15 ...
Page 16: ...16 5 Location of Controls and Components ...
Page 17: ...17 ...
Page 40: ...40 9 1 2 P C B Positions ...
Page 49: ...49 9 2 6 Grease ...
Page 50: ...50 9 2 7 How to Clean the Lens of Optical Pick UP Follow the 9 2 1 Upper Base Ass y ...
Page 52: ...52 10 1 2 Checking and Repairing of BD Drive ...
Page 53: ...53 10 1 3 Checking and Repairing of AV IO P C B ...
Page 54: ...54 10 1 4 Checking and Repairing of HDD ...
Page 112: ...S8 2 Frame and Casing Section 2 S 57 50 51 49 46 45 44 43 47 53 54 52 55 48 41 42 ...
