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18.7. SMPS Circuit
1
2
3
SCHEMATIC DIAGRAM - 16
A
N
SMPS CIRCUIT
B
DCDET
H5801*
+30V_SENSE
+30V_SENSE
8
FAN_18V
M
+30V_SENSE
7
TO
GND
6
D-AMP CIRCUIT
GND
5
(CN5500)
-30V_SENSE
4
IN SCHEMATIC
-30V_SENSE
-30V_SENSE
3
C
DIAGRAM - 15
2
FAN_GND
FAN_18V
1
FAN_18V
-30V_SENSE
+30V_SENSE
D
CN5802
DCDET
AM_BP
AM_BP
11
PCONT
PCONT
10
DC_18V
DC18V
9
B
DC_18V
AM_BP
TO
DC18V
8
MAIN CIRCUIT
C5812
+18V.-12V_GND
7
E
0.1
(ZJ2701*)
+18V.-12V_GND
6
C5815
0.1
-13V
IN SCHEMATIC
-13V
5
2SC3940ARA
DIAGRAM - 10
DCDET
DCDET
4
SYS_GND
3
-13V
SYS6V
SYS6V
2
SYNC
SYNC
1
FAN_18V
C5896
0.1
F
K1
0
0
K4
K7
0
+30V_SENSE
G
-30V_SENSE
SYS6V
PCONT
H
1
2
3
4
5
6
: +B SIGNAL LINE
: -B SIGNAL LINE
D5809
MA2J1110GL
Q5861 - Q5862
B1ABCF000176
TRANSFORMER TEMP DETECT
Q5860
2SA207700L
TRANSFORMER
TEMP DETECT
C5869
C5870
0.1
0.1
R5801
10K
D5807
MA2J1110GL
C5800
1
QR5801
R5840
0
82K
2
UNR221400L
3
DC DETECT
ZJ5801
QR5802
B1GDCFGA0018
DC DETECT
R5825
1K
Q5803
SWITCHING
IC5801
C0DABFC00002
SHUNT REGULATOR
C
1
3
A
Q5802
2
B1ABCF000176
R
FEED BACK CONTROL
D5806
MAZ8075GML
4
5
6
7
8
9
D5801
B0HBSM000043
1
2
3
T5701
ETS42BN1A6AD
MAIN TRANSFORMER
10
9
-30V
DRAIN
11
8
12
7
13
6
AMPGND
14
5
+30V
15
4
+FAN 18V
VIN
GND
3
2
1
16
3
+18V
VCC
17
2
D5803
R5720
B0HFRJ000012
D5802
22
18
1
B0HBSM000043
-12V
Q5720
2SC3940ARA
CURRENT
LIMITING SWITCH
D5805
B0EAMM000057
Q5722
B1ABCF000176
CURRENT
LIMITING SWITCH
R5730
1K
D5725
B0BC6R100010
PC5720
B3PBA0000402
R5809
R5807
330
330
1
4
2
3
FEED BACK
PC5701
B3PBA0000402
1
4
2
3
FEED BACK
QR5810
B1GBCFLL0037
INVERTER
7
8
9
138
10
11
12
R5703
R5702
100K
100K
3
1
2
D5726
B0EAKM000117
D5721
MAZ8180GML
D5729
Q5720
B0EAMM000057
R5722
R5721
D5728
1K
MA2J1110GL
10K
D5724
D5727
C5720
MA2J1110GL
MA2J1110GL
0.1
R5725
0
D5722
B0BC019A0007
C5728
1000P
C5737
470P
D5723
MA2J1110GL
C5700
F1BAF1020020
1000P
R5750
0
3 2
1
ZJ5803
1/2
2/2
SA-VK880EE SMPS
10
11
12
13
14
P1
1
2
TO SMPS
SECTION (2/2)
3
R5732
100
IC5701
C5HACYY00003
SWITCHING REGULATOR
7
OCP/BD
6
FB
5
OLP/SS
C5730
50V1
4
VCC
3
GND
2
S
1
D
R5726
0.82
6
CIRCUIT
13
14
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