DMR-EH54DEG
POWER 2/2
SCHEMATIC DIAGRAM
!
Note:
Marked $ (spare) parts are not assembled
Important Safety Notice:
Components identified with the mark have
the special characteristics for safety.
When replacing any of these components
use only the same type.
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
C1407
25V220
D1401
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
(REG.DR+5V)
IC1401
(DC-DC CONVERTER)
1
2
3
4
5
6
C1411
180P
1
2
3
4
5
6
7
8
R1406
R1405
51K
L1601 15u
2
1
IP1601
S
D
LB1600
C1601
25V220
D1601
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
(REG.XSW+5.8V OUT)
IC1601
(DC-DC CONVERTER)
1
2
3
4
5
6
C1605
180P
1
2
3
4
5
6
7
8
R1601
R1602
51K
2
C1606
0.01
HDD PFAIL
2
1
IP1401
3
4
DR GND
DR GND
DR5V
TO HDD
P1103
DR12V
L1270
10u
GND
ON/OFF
CTL.
V
out
Amp out
OSC
S/S
Amp(-)
IC1400
(DC-DC CONVERTER)
Vin
1
2
3
4
5
6
7
8
D1400
L1701 22u
S
D
LB1700
C1701
25V220
D1701
D
G
D
D
CC
Vref/SS
PW
ON
F
eed
Bac
k
GND
Current
Sence
C1707
6V680
R1703
0
FET
Gate
Dr
iv
e
C1704
0.01
C1703
0.1
R1705
4700
C1702
0.1
R1704
10K
Q1700
(REG.XSW+3.8V)
IC1701
(DC-DC CONVERTER)
Vin
1
2
3
4
5
6
C1705
120P
1
2
3
4
5
6
7
8
R1701
R1702
33K
C1412
0.01
R1518 10K
C1706
0.01
D
G
Q1270
(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
QR1302
(SWITCHING)
QR1801
QR1301
(POWER ON :ON)
R1311
4700
(HDD PFAIL OUT)
IC1501
(SWITCHING)
R1800
470
QR1800
D1800
R1801
100K
R1802
4700
C1800
25V47
R1803
10K
QR1304
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
P
P
Vin
FET
Gate
Dr
iv
e
Current
Sence
GND
F
eed
Bac
k
PW
ON
Vref/SS
CC
Vin
Vref/SS
CC
PW
ON
Fe
e
d
Bac
k
FET
Gate
Dr
iv
e
Current
Sence
GND
X SW 12.4V
H
H
H
H
L
H
L
DMR-EH54DEG
54
Summary of Contents for DMR-EH54DEG
Page 44: ...44 DMR EH54DEG ...
Page 46: ...DMR EH54DEG 46 ...
Page 52: ...DMR EH54DEG 52 ...
Page 64: ...DMR EH54DEG 64 ...
Page 72: ...DMR EH54DEG 72 ...
Page 73: ...22 EXPLODED VIEWS 22 1 CASING PARTS AND MECHANISM SECTION 73 DMR EH54DEG ...
Page 74: ...22 2 PACKING ACCESSORIES SECTION 74 DMR EH54DEG ...