I1
I2
I4
I5
I
SCHEMATIC DIAGRAM - 15
SMPS CIRCUIT
SA-PT750P/PC SMPS CIRCUIT
1/2
2/2
:+B SIGNAL LINE
:-B SIGNAL LINE
H
TO
D-AMP CIRCUIT
(H5500)
IN SCHEMATIC
DIAGRAM - 14
C
TO
MAIN CIRCUIT
(CN2004)
IN SCHEMATIC
DIAGRAM - 10
TO SMPS
SECTION (2/2)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
L5721
J0JKB0000020
C5727
3300P
D5725
B0JAME000029
D5732
B0BC02900004
C5724
50V56
R5726
0.033
4
3
5
IC5701
C0DAAMH00004
SWITCHING REGULATOR
0.033
R5731
0.033
R5727
680
R5725
3
1
2
B0HBSM000043
D5801
R5834
2.2K
32
1
ZJ5801
2.2K
R5832
+30V_SENSE
FAN_18V
10K
R5863
DCDET
10K
8.2K
R5862
FAN_18V
C5823
0.1
-30V_SENSE
10K
R5864
DCDET
B1GBCFJN0033
QR5801
-30V_SENSE
R5801
12K
D5807
B0ACCK000005
+30V_SENSE
R5800
10K
R5860
Q5860
10K
0.1
C5831
0.1
C5832
5
6
1
3
4
2
8
7
CN5801
B1ADCF000001
Q5860
C5800
0.01
Q5862
R5861
Q5861 - Q5862
Q5861
B1ABCF000176
33K
R5703
33K
R5702
35V1200
C5805
B0HFRJ000012
D5803
35V1200
C5808
C5819 0.01
C5822
0.01
22
R5720
D5731
B0EAMM000057
3
2
1
D5702
B0ZAZ0000052
C5713
0.01
3
2
1
ZJ5803
C5700
F1BAF1020020
1000P
ETS42BM15GAD
MAIN TRANSFORMER
TH5860
D4CC11040013
C5821
0.01
C5820
0.01
PCONT
AM_BP
35V470
C5824
SYNC
SYS6V
2.2K
R5805
15K
R5806
A
R
3
2
C
1
C0DABFC00002
SHUNT REGULATOR
FEED BACK CONTROL
FEED BACK
INVERTER
CURRENT
LIMITING SWITCH
CURRENT
LIMITING SWITCH
FEED BACK
IC5801
0.1
C5818
-13V
DCDET
0.1
C5815
C5812
0.1
DC_18V
0
R5803
47K
R5804
0.1
C5810
2.7K
R5802
C5896
0.1
6
8
9
7
2
1
4
5
3
10
11
CN5802
PCONT
B1GBCFLL0037
QR5810
330
R5809
330
R5807
3.3K
R5730
2.2K
R5808
4
3
1
2
B3PBA0000402
PC5720
R5817
330
R5810
330
4
3
1
2
B3PBA0000402
PC5701
1.5K
R5811
0.1
C5825
1.5K
R5816
8.2K
R5812
B0BC7R500001
D5806
SYS6V
-30V_SENSE
+30V_SENSE
2.7K
R5815
24K
R5813
Q5802
Q5802
B1ABCF000176
120
R5724
DC_18V
3
1
2
B0HBSM000043
D5802
-13V
FAN_18V
35V470
C5816
B0EAMM000057
D5805
C5826
0.01
D5804
B0EAMM000057
11
13
14
12
10
8
6
5
7
9
18
15
16
17
1
4
3
2
T5701
3
2
1
ZJ5802
C5813
35V1000
R5722
2.4K
C5722
470P
220P
C5721
R5750
0
10K
C5728
1000P
R5728
R5729
100K
D5724
B0EAMM000057
B1ABCF000176
Q5722
3.9K
R5721
D5722
B0BC01700015
B0ACCK000005
D5723
C5720
0.1
B0EAMM000057
D5729
B0BC01700015
D5721
D5726
B0EAKM000117
SWITCHING
1K
R5723
B1ADCF000001
Q5721
B0ACCK000005
D5728
2SC3940ARA
Q5720
Q5720
Q5722
R5732
0.033
35V1200
C5806
47
R5820
Q5803
2SC3940ARA
SWITCHING
47
R5824
AM_BP
R5825
1K
47
R5822
47
R5821
47
R5823
35V1200
C5809
D
S
GND
FB
VCC
+30V_SENSE
VIN
DRAIN
PCONT
DC18V
AM_BP
-13V
DCDET
DC18V
+18V.-12V_GND
+18V.-12V_GND
GND
GND
-30V_SENSE
FAN_GND
FAN_13V
-30V_SENSE
+30V
-30V
+FAN 18V
GND
+18V
AMPGND
-12V
SYS6V
SYNC
SYS_GND
+30V_SENSE
2
1
W5803
0
W5802
0
W5801
0
W5804
TRANSFORMER TEMP DETECT
TRANSFORMER TEMP DETECT
DC DETECT
0
W5806
0
SA-PT750P / SA-PT750PC
115
Summary of Contents for SA-PT750P
Page 12: ...12 SA PT750P SA PT750PC ...
Page 19: ...7 6 Using the Music Port 19 SA PT750P SA PT750PC ...
Page 55: ...10 2 Main Components and P C B Locations 55 SA PT750P SA PT750PC ...
Page 76: ...76 SA PT750P SA PT750PC ...
Page 90: ...SA PT750P SA PT750PC 90 ...
Page 98: ...SA PT750P SA PT750PC 98 ...
Page 100: ...100 SA PT750P SA PT750PC ...
Page 120: ...SA PT750P SA PT750PC 120 ...
Page 128: ...SA PT750P SA PT750PC 128 ...
Page 135: ...25 Exploded Views 135 SA PT750P SA PT750PC ...
Page 136: ...136 SA PT750P SA PT750PC ...
Page 137: ...25 1 Cabinet Parts Location SA PT750P SA PT750PC 137 ...
Page 138: ...SA PT750P SA PT750PC 138 ...