BOSE SD262082 Schematic
A BCD EFGH
1
+15V2
-15V2
A m p P o w e r G n d
>Speaker Return Currents
>Decoupling Return Currents
>Multiple connections to chassis
2
via output stage shield cage
W1
W2
W3
P600
1
VSNeg/ BLU
2
AmpPwrGnd/ BLK
3
ReferenceGnd/ BRN
4
VSPos/ RED
+15V/ RED
-15V/ WHT
GND/ BLK
Input Module Power
Supply to Power Amplifier Assy
1
2
J300
THERMAL-SW
D403
D402
.1/250V
C400
C401
.1/250V
1N4004
-
D404
1N4004
D405
1N4004
D400
1N4004
D401
1N4004
+
.1/250V
C402
C403
.1/250V
C405
2200/35
C407
2200/35
C404
6800/63V
C406
6800/63V
C408
.1/250V
C410
.1/250V
C409
.1/250V
C411
.1/250V
R400
4.7K 2W
R402
4.7K 2W
R401
2.2K 1W
R403
2.2K 1W
WL400
RED
YELLOW
3
Leads from
Power Xfmr
Secondary
VIOLET
RED/ YELLOW
RED
YELLOW
WL401
WL402
WL403
WL404
WL405
39Vac
18Vac
Thermal Switch
CT
39Vac
18Vac
MB254W
4
NOTES
Unless otherwise noted:
1. Resistors are 1/8W, in Ohms;
Capacitors in uF;
Diodes are 1N4148.
5
F400
10A T
F401
10A T
F402
2A
F403
2A
PS-UP
VSPOS
FLTRGND
VSNEG
VS1POS
FLTRGND
VS1NEG
C h a s s i s G n d
E400
Made via PEM standoff
to chassis
C414
0.47
C415
0.47
IN
1
GND
IN
U400
7815F
2
2
1
U401
7915F
GND
3
OUT
OUT
1N4004
1N4004
3
D408
D409
D406
1N4004
D407
1N4004
C416
0.47
C417
0.47
THERMAL-SW
C418
100/25V
C419
100/25V
+15V2
-15V2
+15V
-15V
+15V3
VSNEG
PS-UP
VSPOS
C420
10/35V
1
Signal Gnd
2
3
4
5
6
7
8
Signal Gnd
9
10
11
12
13
14
15
16
Power Gnd
17
18
19
20
U403
7815F
3
1
OUT
IN
2
GND
1N4004
1
GND
3
2
OUT
IN
U402
7915F
Supply to Signal Processor Assy
D413
1N4004
C444
D412
D411
1N4004
D410
1N4004
C425
0.47
C422
0.47
100/25V
C423
100/25V
C446
0.47
IN
1
GND
U404
7815F
2
3
OUT
D414
1N4004
D415
1N4004
OpenR404
OpenR405
C445
0.47
+15V
+15V2
+15V3
C447
100/25V
3
4
5
-15V
-15V2
OpenR406
G r o u n d i n g S y m b o l K e y
C a g e C h a s s i s G n d
C
C h a s s i s G n d
6
I n p u t G n d
P o w e r G n d
Model 2150 Amplifier
Power Supply PCB
6
Part Number 262082
Service Manual Part Number 216306 Rev. 00
A
B
C
D
E
F
G
Sheet 1 of 1
H
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