Service Manuals, User Guides, Schematic Diagrams or docs for : BOSE Audio 3-2-1 GS Series II 3-2-1 series II_GS series II_GSX BassBox-IO-270926-Rev00_sht1
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8 7 6 5 4 3 2 1
J4 TO SPEAKER CABLE
J7 PLUGS TO DSP J150
D D
271899-010 J4
J7 260917-09 2 J5
TP7 LC- 1 271897-002
1 1
TP8 LC+
2 2
LS-
3 3 S1-NV
LS+ TP9 RC+ TP4 TP5
4 4 1 2
LC- TP10 RC- 2 J2-NV
TP6 TP41
5 5
LC+ TP11 1 271897-002
LS+ F1
6 6 TP1 TP2 TP3TP45
RC+ TP12 LS-
7 7
RC- TP13 RS- 2.500A
8
RS+ TP14 RS+
8 J1 VR1-NV
TP42
9 9 273692-001 TP43
RS- 273545-001
10 10 MTH 1 TP44
11 MTH
120 VAC 2
PGND
TP23 TP36 TP37
V-UNREG TP42-TP44 ARE NOT CONNECTED ON THIS DESIGN.
THEY ARE CONNECTED TO SIGNALS ON THE DUAL I/O
PGND C6
4700uF
C C
PGND XJ3
SHGND SHGND
XJ3 IS A GND SHIELD FOR J3
J3
C5
LAC1315-0002
GND 16 V-UNREG 1 V_UNREG
TP16 C1 2.2uF
R+ 15 2 PGND
TP15
R- 14 2.2uF C10 3 SPDIF-
TP47 TP48
AGND 13 4 MUTE
TP17 C4
2.2uF
L+ 12 C7-NV 5 DSP SHUTDOWN
TP18 C3
2.2uF
L- 11 6 A_RETURN
2.2uF 0.010uF
DGND 10 7 DGND
TP20 TP27
SPDIF+ 9 8 L-
TP19 TP28
SPDIF- 8 9 L+
B TP25 B
DGND 7 TP49 10 R-
TP21
CONSOLE MUTE 6 11 SPDIF+
TP22 TP26
SS 5 12 R+
TP29
SPKR_SENSE 4 13 SS
GND 3 14 MTG
TP24
DSP-SHUTDOWN 2
TP38
C8 J3 PLUGS TO MAIN BD. BASSBOX CONN
GND 1 TP30
PGND 0.010uF
J6 SG12 SG11 SG10 SG9 SG8 SG7 SG6 SG2
SG3
SG4 SG5 SG1
270584-016
J6 PLUGS TO DSP J7100 C9
TP46
0.010uF SHGND PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND
R
A A
FRAMINGHAM, MA 01701-9168
PS321 II Bass Module
Input /Output (I/O) PCB
PCB P/N: 270926 Rev. 00
Sheet 1 of 1
8 7 6 5 4 3 2 1
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