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VA1110,L1120,L1121
D1140,C1143
AC INLET
F1101
P1101
250V2A
SURGE
RECTIFIER
SUPPRESSOR
AND
SURGE
ABSORBER
IC1150
(SWITCHING IC)
VIN
7
2
F/B
9
5
Z/C
GND
VCC
1
3
4
T1150
POWER
SWITCHING
TRANSFORMER
D1270
1
P1
S2D
7
18
2
X SW+12.4V
3
S2C
17
S2B
16
S2A
15
P2
5
S1A
14
S1B
13
V2
3
S1C
12
V1
S1D
2
11
Q1200
(FEED BACK)
4
1
3
2
2
1
3
IC1200
(ERROR VOLTAGE DET.)
HOT
COLD
IC1400
(DC/DC CONVERTER)
1
VIN
VOUT
8
D+1.5V
ON/OFF GND
2
5
Q1700
(REG.X SW+3.8V)
QR1301
(POWER ON
H
:ON)
S
D
4
FET
G
IC1701
(DC/DC CONVERTER)
Current
1
Vin
8
3
Sense
FET
Gate
7
Drive
PW
2
GND
6
ON
Q1600
(REG.X SW+5.8V)
S
D
4
FET
G
IC1601
(DC/DC CONVERTER)
IP1601
Current
2
1
1
Vin
8
3
Sense
FET
Gate
7
Drive
QR1800,QR1801
PW
SWITCHING
2
GND
6
ON
Q1400
(REG.DR+5V)
S
D
4
FET
G
IC1401
(DC/DC CONVERTER)
IP1401
Current
2
1
1
Vin
8
3
Sense
FET
Gate
7
Drive
PW
2
GND
6
ON
QR1303
(POWER ON/OFF
CONTROL SW.)
QR1302
(
:ON)
H
Q1270
(DR+12V OUT)
1
S
D
2
FET
G
3
4
POWER P.C.B.
D+1.5V
POWER ON H
X SW+3.8V
1
2
5
6
X SW+5.8V
1
2
5
6
HDD PFAIL L
1
2
5
4
5
VCC
VOUT
6
IC1501
-
+
(HDD PFAIL
L
OUT)
Vref
2
3
DR P ON H
DR+12V
DR+5V
DR+5V
DR+12V
5
6
7
8
QR1304
(
H
:ON)
X SW+12.4V
MAIN P.C.B.
P1102
P1501
A
12,13
P1102
P1501
B
11
P1102
P1501
C
14
P1102
P1501
D
2,3
TO
P1102
P1501
HDD PFAIL
L
TIMER
22
IC7501-
47
SECTION
FROM
P1102
P1501
DR P ON
H
TIMER
IC7501- 49
15
SECTION
P1103
1
TO
P1103
HDD
4
P1102
P1501
20,21
TO
DVD-RAM/R DRIVE
P1102
P1501
16,17
IP1501
P1102
P1501
1
2
E
4,5
DMR-EH50GN
Power Supply Block Diagram
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