S-7
S3. Block Diagram
S3.1. Power Supply Block Diagram
44
IC9701-
H
DI P ON
47
IC9701-
L
(DC-DC CONVERTER)
4
2
IC11370
VIN
VOUT
SENSE
ON
5
1
D11152
D11156
D11151
D10102
Q10101
VCC
4
GND
3
IC11150
F/B
E/OCL 5
2
Z/C
(SWITCHING IC)
1
QR11270
sw
QR10103
OSC
9
DR_P_ON
IC9701 42
H
FROM
DIGITAL IF P.C.B.
TIMER SECTION
T11150
D11270
P9101
P6001
13,15
X_SW_5R8V
QR11700,QR11701
SW
1
IP9102
2
4
A
IC11201
3
K
R
2
1
2
4
3
Q11200
B2
B1
P2
P1
9
2
1
3
10
6
5
3
1
DMR-EZ49VEG/EC/EB
Power Supply Block Diagram
1
2
4
3
Q10102
QR11200
4
1
3
2
HOT
COLD
D11101
L11121
VA11110,L11120,
F11101
SURGE
SUPPRESSOR
AND
SURGE
ABSORBER
RECTFIER
SW TRANSFORMER
REG. D+12V
REG. D+5.8V
REG. AU+5.8V
REG. D+5.8V
REG. D+3.8V
REG. BE+3.8V
FROM
DIGITAL IF P.C.B.
TIMER SECTION
S_P_SAVE
FROM
DIGITAL IF P.C.B.
TIMER SECTION
TO
DIGITAL P.C.B.
TO
DIGITAL P.C.B.
TO
DIGITAL P.C.B.
TO
DIGITAL P.C.B.
TO
DIGITAL P.C.B.
TO
MAIN P.C.B.
TO
MAIN P.C.B.
TO
MAIN P.C.B.
(DC-DC CONVERTER)
(DC-DC CONVERTER)
(ERROR VOLTAGE DETECTOR)
POWER ON/OFF
CONTROLER
(FEED BACK)
(FEED BACK)
P11101
AC SOCKET
MECHA +12.5V
P9103
P6003
12
X_SW_12V
DR12V
DR12V
RAM_DR5V
P9703
P59001
64,66,68,70,72,74
P9703
P59001
22, 24
P9703
P59001
14, 16
ON: H
P9703
P59001
25
AU +5V
3
V OUT 5
4
IC9301
V IN
P9104
P6004
8,9,10
BE +3.3V
X SW +5.8V
V OUT
1
3
IC11750
V IN
3
4 S
D
D
G
D
D
2
5
1
6
Q11700
IC14301
4
3
S
D
D
G
D
D
5
2
6
1
Q14301
6
1
S
D
D
G
D
D
5
2
4
3
Q14302
6
1 S
EXTLO
EXT UP
VIN
SEL
SYNC
LX
FB
RS+
RS-
D
D
G
D
D
5
2
4
3
Q11270
7
1 VIN
CS
EXT
FB 5
8
V5
IC11700
D +3.8V P9703
P59001
60,62
2
2
13
16
15
11
6
7
8
DIGITAL IF P.C.B.
Содержание DMR-EZ49VEG
Страница 5: ...5 2 2 Precaution of Laser Diode ...
Страница 7: ...7 3 Service Navigation 3 1 Service Information 3 2 Caution for DivX except DMR EZ49VEB ...
Страница 10: ...10 4 Specifications ...
Страница 11: ...11 ...
Страница 13: ...13 ...
Страница 35: ...35 9 2 P C B Positions ...
Страница 46: ...46 10 1 2 Checking and Repairing of Main P C B ...
Страница 47: ...47 10 1 3 Checking and Repairing of RAM Digital P C B Module ...
Страница 75: ...S 23 ...
Страница 91: ...S 39 ...
Страница 126: ...S 74 ...
Страница 139: ...S 87 ABBREVIATIONS INITIAL LOGO VTR H VTR H VTR 12V VTR 12V X X IN OSCILLATOR INPUT X OUT OSCILLATOR OUTPUT ...
Страница 155: ...S8 2 Frame and Casing Section 2 S 103 2 7 45 68 13 13 3 13 6 13 7 13 1 13 10 13 5 13 4 13 9 13 8 13 2 46 47 13 11 ...
Страница 157: ...S8 4 Packing Parts and Accessories Section S 105 A3 BATTERY REMOTE CONT A4 A7 A3 1 A6 PC1 PC3 PC2 PC4 A8 A9 ...