17 Block Diagram
17.1. Power Supply Block Diagram
H
H
H
H
H
H
H
Sense
Current
8
Sense
Current
8
E
D
C
B
A
IP1501
2
1
MAIN P.C.B.
POWER P.C.B.
SECTION
TIMER
FROM
49
IC7501-
DR P ON
X SW+3.8V
DR+12V
DR+5V
DR P ON
X SW+5.8V
POWER ON
D+1.5V
X SW+12.4V
14
P1501
P1102
DVD-RAM/R DRIVE
TO
16,17
20,21
P1501
P1501
P1102
P1102
15
P1501
P1102
2,3
P1501
P1102
12,13
11
P1501
P1501
P1102
P1102
D+1.5V
4,5
P1501
P1102
HOT
COLD
(ERROR VOLTAGE DET.)
IC1200
3
2
1
(FEED BACK)
Q1200
1
2
3
4
Drive
Gate
FET
ON
PW
GND
IC1701
Vin
6
(DC/DC CONVERTER)
7
2
1
6
5
2
1
3
4
(REG.X SW+3.8V)
Q1700
G
S
D
FET
( :ON)
QR1304
4
X SW+12.4V
8
7
6
5
3
2
1
(DR+12V OUT)
Q1270
G
S
D
FET
( :ON)
QR1302
CONTROL SW.)
(POWER ON/OFF
QR1303
D1401
(REG.DR+5V)
VOUT
VIN
IC1401
3
5
:ON
2
1
GND
(REG.X SW+5.8V)
Q1600
8
7
6
5
4
3
2
1
G
S
D
FET
(DC/DC CONVERTER)
IC1601
GND
Drive
Gate
FET
ON
PW
Vin
6
7
2
1
QR1800,QR1801
SWITCHING
IP1601
1
2
(POWER ON :ON)
QR1301
(DC/DC CONVERTER)
IC1400
GND
ON/OFF
VOUT
VIN
8
5
2
1
X SW+12.4V
D1270
2
3
1
11
12
13
14
15
16
17
18
S1D
S1C
S1B
S1A
S2A
S2B
S2C
S2D
VIN
7
V1
V2
P2
2
3
5
F/B
Z/C
GND VCC
(SWITCHING IC)
IC1150
5
9
4
3
1
2
P1
7
TRANSFORMER
SWITCHING
POWER
T1150
RECTIFIER
D1140,C1143
VA1110,L1120,L1121
250V2A
F1101
ABSORBER
SURGE
AND
SUPPRESSOR
SURGE
P1101
AC INLET
DMR-ES20EG/EP/EE
Power Supply Block Diagram
DMR-ES20EG / DMR-ES20EP / DMR-ES20EE
37
Содержание DMR-ES20EG
Страница 2: ...2 DMR ES20EG DMR ES20EP DMR ES20EE ...
Страница 7: ...5 Each Button 7 DMR ES20EG DMR ES20EP DMR ES20EE ...
Страница 12: ...Error Occurring Disc State 12 DMR ES20EG DMR ES20EP DMR ES20EE ...
Страница 25: ...12 2 Checking and Repairing of Digital P C B 25 DMR ES20EG DMR ES20EP DMR ES20EE ...
Страница 26: ...12 3 Checking and Repairing of Main P C B 26 DMR ES20EG DMR ES20EP DMR ES20EE ...
Страница 27: ...12 4 Checking and Repairing of DVD RAM Drive 27 DMR ES20EG DMR ES20EP DMR ES20EE ...
Страница 36: ...DMR ES20EG DMR ES20EP DMR ES20EE 36 ...
Страница 42: ...DMR ES20EG DMR ES20EP DMR ES20EE 42 ...
Страница 54: ...DMR ES20EG DMR ES20EP DMR ES20EE 54 ...
Страница 63: ...20 Exploded Views 20 1 Casing Parts Mechanism Section 63 DMR ES20EG DMR ES20EP DMR ES20EE ...
Страница 64: ...20 2 Packing Accessories Section 64 DMR ES20EG DMR ES20EP DMR ES20EE ...