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13.2. POWER
2
3
4
1
3
$
3
2
C1143
3
2
A
N
P
HOT
COLD
TIMER
RESTERT
COMPARATOR
OCP THRESHOLD
BURST MODE
COMPARATOR/
OCP THRESHOLD
GND
3
VCC
UVLO
UVLO
FB
Z/C
2
1
VIN
DRAIN
4
5
/OCL
SOURCE
DET./ONDEAD TIMER
ZERO CURRENT
TIMER
ON WIDTH
CIRCUIT
STANDBY
PROTECTOR
OVER HEATING
PROTECTOR/
OVER VOLTAGE
LATCH RELEASE/
/VCC(STOP)
VCC(START)
-
+
CIRCUIT
CONTROL
CIRCUIT
SOFT-DRIVE
BURST)SENS.
IDP(LIMIIT/
/VCC(STARTUP ON)
VCC(STARTUP OFF)
-
+
CIRCUIT
START-UP
CC
VREF/SS
V5/PWON
VIN
FB
GND
EXT
CS
COMP
CNT.
-
+
SHIFT
LEVEL
UVLOcomp
VREF
0.8V
V5
+
-
RESET
CONTROL LOGIC
+
-
+
-
8
4
3
2
1
DMR-EX75EG/EC/EB
DMR-EX85EG/EB
POWER
SCHEMATIC DIAGRAM
K1129
ZA1107
ZA1106
ZA1105
P1101
F1101
250V T2AL
VA1110
ZA1103
ZA1104
C1120
L1120
1
C1121
K1122
K1123
D1140
4
1
2
3
LB1122
D1141
$
C1125
T1150
P1
12
PU
P2
NC
V2
V1
11
10
9
8
7
NC 6
5
4
3
2
1
NC
D1270
ZA1270
ZA1271
L1400
L1270
P1102
TO P1501 MAIN P.C.B.
MAIN NET (1/4) SECTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
NC
X_SW5R8VT
X_SW5R8V
X_SW5R8V
X_SW5R8V
X_SW5R8V
GND
GND
GND
GND
GND
X_SW12V
X_SW12V
X_SW12V
X_SW12V
X_SW3R8V
X_SW3R8V
P_ON_H
D3R8V
P_SAVE_L
FANLOCK
FANLOCK
FAN_GND
FAN_GND
FANOUT
FANOUT
P1103
C1122
C1123
LB1124
1
R1803
R1800
C1272
C1271
C1270
ZA1150
IC1150
2
4
7
LB1126
R1153
R1150
LB1123
D1151
C1150
Q1200
4
1
C1202
R1209
R1208
D1800
QR1800
QR1801
R1802
C1800
R1801
R1200
R1207
C1200
R1210
R1151
R1152
9
5
3
1
ZA1151
1
1
1
2
2
2
3
3
3
C1151
D1157
D1156
R1157
D1152
R1154
IC1200
1
3
2
C
A
R
R1205
R1206
C1201
R1201
Q1600
1
2
3
4
5
6
7
8
Q1700
D
G
D
D
D
S
1
2
3
4
5
6
C1153
C1152
R1156
R1155
C1154
D1155
R1158
R1701
C1701
C1702
C1703
C1704
R1702
C1705
1
2
3
4
8
7
6
5
IC1701
C1706
L1701
LB1700
R1704
R1703
C1707
IP1601
R1601
L1601
C1608
C1607
R6104
R1603
LB1600
8
7
1
2
3
6
5
4
C1605
R1602
R1605
D1601
C1606
IC1601
C1604
C1603
C1602
C1601
R1705
D1701
2
2
1
7
6
5
7
9
IC1150
SWITCHING IC
IC-DETAIL BLOCK DIAGRAM
IC1601, IC1701
SWITCHING IC
IC-DETAIL BLOCK DIAGRAM
Note:
Marked $ (spare) parts are not assembled
* Optional Parts
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.
DMR-EX75EG / DMR-EX75EC / DMR-EX75EB / DMR-EX85EG / DMR-EX85EB
54