Table of Contents
S3. Block Diagram
S3.1. Power Supply Block Diagram
S3.1.1. Power Supply Block Diagram (1)
VA11101,
L11101,L11102
D11101,C11107
AC SOCKET
P11101
F11101
A
~
3
+
1
SURGE
SUPPRESSOR
AND
RECTIFIER
SURGE
N
ABSORBER
~
4
-
2
IC11301
(SWITCHING IC)
VIN
7
2
F/B
9
5
Z/C
GND VCC
1
3
4
D11304
D10101
D11305
D10102
Q10101
(POWER CONT.)
D11303
T11301
POWER
TRANSFORMER
P1
NS12-2
1
12
D13201
NS12-1
11
3
10
P2
9
B1
5
8
6
7
B2
IC12201
(ERROR VOLTAGE DET.)
Q12201
(FEED BACK)
4
1
1
3
2
3
2
Q10102
(FEED BACK)
4
1
3
2
QR10101
(S P SAVE
L
:OFF)
HOT
COLD
IC14201
Q14202
(DC-DC CONVERTER)
(REG.DR+5V)
14
VIN
EXT
11
3
G
1
2
D
5
6
F
B
CS
13
4
S
6
EN 16
Q13102
(REG.DR+12V)
4
S
1
2
D
3
G
5
6
QR13101
(DR P ON
H
:ON)
IC14301
Q14301
(DC-DC CONVERTER)
(REG.X SW+5.9V)
EXT UP
15
3
G
2
SEL SYNC
VIN
16
4
S
6
FB
OSC 9
EXT LO 11
Q14302
(REG.X SW+5.9V)
3
G
QR10103
S P SAVE
L
:OFF)
4
S
S-5
DR+12V
DR+5V
DR+5V
DR+12V
IC1601
(RESET)
HDD P FAIL
L
2
VDD
V OUT
1
IC59501-
59
DR P ON
H
IC59501-
43
SP SAVE
L
IC59501-
60
1
2
D
5
6
1
2
D
5
6
DMR-BW780EB/BW880EB
Power Supply Block Diagram (1/2)
P1602
1
TO HDD
P1602
4
P1601
4
TO
BD DRIVE
P1601
1
TO/FROM
TIMER
BLOCK
SECTION
X SW+12.3V
A
X SW +5.9V
B
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