S-6
S3. Block Diagram
S3.1. Power Supply Block Diagram
S3.1.1. Power Supply Block Diagram (1)
L
3
4
1
2
FB
S
CS
EXT
D
2
6
5
1
G
3
Q14202
(REG.DR+5V)
4
D
2
6
5
1
S
4
Q13102
(REG.DR+12V)
G
3
13
EN 16
6
11
VIN
14
IC14201
(DC-DC CONVERTER)
FB
S
VIN
EXT UP
D
2
6
A
B
5
1
G
3
Q14301
(REG.X SW+5.9V)
4
S
D
2
6
5
1
G
3
Q14302
(REG.X SW+5.9V)
4
16
OSC 9
EXT LO 11
6
15
SEL SYNC
2
IC14301
(DC-DC CONVERTER)
2
IC12201
(ERROR VOLTAGE DET.)
1
3
(RESET)
IC1601
2
1
VDD V OUT
DR+12V
DR+12V
DR+5V
DR+5V
1
P1602
4
P1602
DMR-BS785EG/BS885EG
Power Supply Block Diagram(1/2)
L
QR10101
(S P SAVE
:OFF)
Q10101
(POWER CONT.)
H
QR13101
(DR P ON
:ON)
D13201
(FEED BACK)
Q10102
1
2
3
4
(FEED BACK)
Q12201
1
2
3
4
D11304
D10101
D10102
(SWITCHING IC)
F/B
Z/C
GND VCC
VIN
+
-
~
~
IC11301
7
9
3
1
4
5
2
N
A
RECTIFIER
D11101,C11107
HOT
COLD
6
5
3
P2
B1
B2
1
P1
NS12-2
NS12-1
12
11
10
8
9
7
POWER
TRANSFORMER
T11302
L11101,L11102
VA11101,
F11101
ABSORBER
SURGE
AND
SUPPRESSOR
SURGE
P11101
AC SOCKET
D11305
D11303
H
L
43
IC59501-
60
IC59501-
DR P ON
59
IC59501-
HDD P FAIL
L
SP SAVE
TO/FROM
TIMER
BLOCK
SECTION
TO HDD
4
P1601
1
P1601
TO
BD DRIVE
X SW+12.3V
X SW +5.9V
QR10103
S P SAVE
:OFF)
Summary of Contents for DMR-BS785EG
Page 2: ...2 ...
Page 6: ...6 2 2 Precaution of Laser Diode ...
Page 9: ...9 3 2 Service Information 3 3 Caution for DivX ...
Page 16: ...16 4 Specifications ...
Page 17: ...17 ...
Page 18: ...18 ...
Page 19: ...19 5 Location of Controls and Components ...
Page 20: ...20 ...
Page 50: ...50 9 2 6 Grease ...
Page 51: ...51 9 2 7 How to Clean the Lens of Optical Pick UP Follow the 9 2 1 Upper Base Ass y ...
Page 54: ...54 10 1 2 Checking and Repairing of BD Drive ...
Page 55: ...55 10 1 3 Checking and Repairing of AV IO P C B ...
Page 56: ...56 10 1 4 Checking and Repairing of HDD ...
Page 57: ...57 10 1 5 Checking and Repairing of Digital P C B ...
Page 96: ...S 37 ...
Page 115: ...S 56 ...