12
13
14
15
16
17
18
19
20
21
22
C
R1402
820
L1402 15u
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
X SW 5.8V
X SW 5.8V
X SW 12.4V
GND
GND
GND
GND
GND
POWER ON
D1.5V
D1.5V
X SW 3.8V
DR P ON
DR12V
DR12V
DRGND
DRGND
DR5V
DR5V
TO P1501
MAIN P.C.B.
(MAIN NET SECTION)
P1102
S
D
LB1400
J0JHC0000048
C1407
25V220
D1401
B0JCPD000021
D
G
D
D
L1400 10u
C1413
10V470
C1421
0.1
R1407
2700
C1410
0.022
C1409
0.1
R1409
4700
C1408
0.1
R1411
12K
C1273
16V120
Q1400
B1DHDD000022
(REG.DR+5V)
IC1401
C0DBAKG00005
(DC-DC CONVERTER)
1
2
3
4
5
6
C1411
180P
1
2
3
4
5
6
7
8
R1406
D1BFR0270001
R1405
51K
L1601 15u
2
1
IP1601
K5H3022A0013
S
D
LB1600
J0JHC0000048
C1601
25V220
D1601
B0JCPD000021
D
G
D
D
C1607
10V680
C1608
0.1
R1603
2400
C1604
0.1
C1603
0.1
R1605
2700
C1602
0.1
R1604
15K
Q1600
B1DHDD000022
(REG.XSW+5.8V OUT)
IC1601
C0DBAKG00007
(DC-DC CONVERTER)
1
2
3
4
5
6
C1605
180P
1
2
3
4
5
6
7
8
R1601
D1BFR0150001
R1602
51K
2
C1606
0.01
HDD PFAIL
2
1
IP1401
K5H3022A0013
3
4
DR GND
DR GND
DR5V
TO HDD
P1103
DR12V
L1270
10u
GND
ON/OFF
CTL.
Vout
Amp out
OSC
S/S
Amp(-)
IC1400
C0DAAJG00007
(DC-DC CONVERTER)
Vin
1
2
3
4
5
6
7
8
D1400
B0JCPE000015
L1701 22u
S
D
LB1700
J0JHC0000048
C1701
25V220
D1701
B0JCPE000015
D
G
D
D
CC
Vref/SS
PWON
Feed
Back
GND
Current
Sence
C1707
6V680
R1703
0
FET
Gate
Drive
C1704
0.01
C1703
0.1
R1705
4700
C1702
0.1
R1704
10K
Q1700
B1DDCC000009
(REG.XSW+3.8V)
IC1701
C0DBAKG00005
(DC-DC CONVERTER)
Vin
1
2
3
4
5
6
C1705
120P
1
2
3
4
5
6
7
8
R1701
D1BFR047A010
R1702
33K
C1412
0.01
R1518 10K
C1706
0.01
D
G
Q1270
B1DHED000008
(DR+12V OUT)
S
1
2
3
4
5
6
7
8
L1503
10u
C1513
10V470
1
4
VOUT
5
VCC
Vref
+
3
2
-
(DR P ON :ON)
(POWER ON/OFF
CTL.SW)
QR1303
UNR221300L
QR1302
UNR221300L
(SWITCHING)
QR1801
UNR221300L
QR1301
UNR221300L
(POWER ON :ON)
R1311
4700
(HDD PFAIL OUT)
IC1501
C0EBJ0000143
(SWITCHING)
R1800
470
QR1800
UNR211300L
D1800
MA2J11100L
R1801
100K
R1802
4700
C1800
25V47
R1803
10K
QR1304
UNR221300L
C1274
0.1
(DR P ON :ON)
R1270
4700
R1271
4700
R1410 150
R1404 1K
C1514
0.01
C1406
6V680
C1402
0.01
L1401
33u
R1401
100K
C1401
1
C1405
1000P
C1400
25V220
C1403
390P
C1404
4700P
A
B
C1272
16V1000
DMR-EH50EB/EG/EP,EH52EG
Power Supply
Schematic Diagram
DMR-EH50EB/EG/EP,EH52EG
Power Supply
Schematic Diagram
P
P
Vin
FET
Gate
Drive
Current
Sence
GND
Feed
Back
PWON
Vref/SS
CC
Vin
Vref/SS
CC
PWON
Feed
Back
FET
Gate
Drive
Current
Sence
GND
X SW 12.4V
H
H
H
H
L
H
L
53
Содержание DMR-EH50EB
Страница 2: ...2 ...
Страница 3: ...3 ...
Страница 31: ...10 8 HDD 1 Remove ATAPI Connector and HDD Power Connector 2 Remove 4 Screws A to remove HDD Angle with HDD 31 ...
Страница 39: ...12 3 Checking and Repairing of Main P C B 39 ...
Страница 40: ...12 4 Checking and Repairing of DVD RAM Drive 40 ...
Страница 41: ...12 5 Checking and Repairing of HDD 41 ...
Страница 52: ...20 2 Packing Accessories Section 52 ...
Страница 60: ...K7401 D0YBR0000002 CHIP RESISTOR 1 EB 60 ...
Страница 66: ...R7304 D0GB101JA002 1 10W 100 1 66 ...
Страница 74: ......
Страница 75: ......
Страница 76: ...1 A B C D 2 3 4 5 Nicam Decoder P C B DMR EH50EB EG EP EH52EG Nicam Decoder P C B VEP07A51A ...