Bose BUILT-INvisible TA-1 Service Manual - Page 2
Browse online or download pdf Service Manual for Amplifier Bose BUILT-INvisible TA-1. Bose BUILT-INvisible TA-1 10 pages. Home theater amplifier
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A
Differential analog inputs
RN1C
RN1A
RN1D
RN1E
RN1B
R1 4.99K
5K
5K
14
3
1
16
R105
5K
5K
5K
13
4
12
5
2
15
1.00K
C3
C1
47pF
+12V
+12V
270pF NPO
3
RN1F
D25
1
5K
AZ23-C16
11
6
U1A
NE5532D8
U1B
NE5532D8
RN1H
RN1G
1
-12V
1
R106
5K
5K
-12V
Music
9
8
7
10
+12V
-12V
Audio
1.00K
C5
Inputs
270pF NPO
C6
3
D26
1
0.1uF
4
1
AZ23-C16
+
1
1
Left
2
-
3
RN2C
GND
5K
4
14
3
+
RN2A
Right
5
-
5K
R8 4.99K
1
16
RN2D
RN2E
RN2B
R109
J6
5K
5K
5K
13
4
12
5
2
15
C8
47pF
1.00K
C10
+12V
+12V
270pF NPO
RN2F
3
D31
5K
AZ23-C16
1
11
6
U2A
NE5532D8
U2B
NE5532D8
RN2H
RN2G
1
-12V
5K
1
R112
5K
-12V
9
8
7
10
+12V
-12V
1.00K
C14
270pF NPO
C15
3
D32
AZ23-C16
1
0.1uF
1
Close Switches
ML-
1
4
MR-
to Short
RN3C
5K
Negative Inputs
VL-
2
3
VR-
14
3
RN3A
S1
5K
R20 4.99K
1
16
RN3D
RN3E
RN3B
R116
5K
5K
5K
13
4
12
5
2
15
C19
47pF
1.00K
C21
+12V
+12V
3
270pF NPO
RN3F
3
D33
5K
1
11
6
AZ23-C16
U7A
U7B
NE5532D8
NE5532D8
RN3H
RN3G
1
-12V
1
5K
5K
-12V
Video
R117
9
8
7
10
+12V
-12V
Audio
1.00K
C25
C26
Inputs
270pF NPO
0.1uF
1
3
D34
1
RN4C
+
AZ23-C16
1
Left
5K
2
14
3
-
3
RN4A
GND
5K
R38 4.99K
4
RN4D
RN4E
RN4B
1
16
+
5K
5K
R118
5K
Right
5
13
4
12
5
2
15
-
C30
47pF
1.00K
C32
+12V
J21
+12V
RN4F
270pF NPO
3
D35
5K
AZ23-C16
1
11
6
U8A
NE5532D8
U8B
NE5532D8
1
-12V
RN4H
RN4G
1
-12V
R120
5K
5K
9
8
7
10
+12V
-12V
1.00K
C37
C38
270pF NPO
3
D37
0.1uF
AZ23-C16
1
1
2
U10D
MAX202E
R126
8
9
R2
1.00K
D39
3
AZ23-C16
+5V
U10A
1
Rx
14
RS232C
D40
2
3
R65
AZ23-C16
Serial
MAX202E
10
3
Tx
R86 100
R71
J9
D41
330
AZ23-C16
U10C
Music
1
2
K1
MAX202E
Relay shown
Center
3
deenergized
Input
R127
1
2
4
R1
(normal use).
1
5
1.00K
13
12
R72
Turn-On/Rx
10
R88
2
300
9
Spkr Data/Tx
8
1.00K
3
R75
2.00K
1
Ant/DTR
C74
12
TX2SA-5V
0.001uF
4
GND
C65
0.001uF
2
Q4
J8
R77
MMBT3904
47K
R129 470
D23
D3
+5V
BAV99
IR
1
2
1
3
2
Input
IR+
2
R130
100
IR-
3
R131
1.00K
1
IR Sensor
4
+5V_FUSED
2
1
+5V
F1
RXE010
5
GND
C81
0.1uF
J10
D24
+5V
BAV99
3
2
R104 4.99K
1
On
TV
+8V_FUSED
2
2
1
+8V
+8V
Sensor
C75
3
F2 RXE010
R79
GND
0.1uF
47K
J11
A
B
Left_Input
Right_Input
+5V
Set_Audio
R93
10.0K
analog source selector
U3 DG409CY
C7
Left_Music_Input
4
DA 8
Left_Input
S1A
0.1uF
Left_Video_Input
5
DB 9
Right_Input
S2A
6
S3A
7
S4A
Right_Music_Input
13
S1B
Right_Video_Input
12
S2B
11
S3B
10
S4B
1
A0
16
A1
2
EN
14
+VCC
3
-VCC
1
+12V
-12V
C12
C11
0.1uF
0.1uF
1
1
1
C16
0.1uF
1
SPARE_1
Speaker EQ
+5V
selector switch
R18 2.00K
1
8
2
7
3
6
4
5
R19 2.00K
SW DIP-4
R21 2.00K
S4
R22 2.00K
R23 2.00K
R24 2.00K
R26 2.00K
C27
0.1uF
R27 2.00K
1
+5V
J1
1
2
3
4
5
6
7
8
9
10
SPARE
11
12
C39
R40 10.0K
HEADER 6X2
0.1uF
Header to Test
1
Accessory
LS_Turn_On
11
T1
Tx_RS232
Rx_RS232
D21
+5V
BAV99
3
2
LS_Spkr_data
R128
+5V
200K
U10E
1
2
V+
C1+
+5V
C46
4
C2+
0.1uF
U11
3
+5V
C47
C1-
C48
0.1uF
RPM-638CBL
6
C2- 5
0.1uF
V-
C49
R78
R9
+5V
75
100K
U16
0.1uF
MAX202E
SN74AHC1G08
1
A
Y 4
IR_In
2
B
+
C53
4.7uF
U10B
35V
7
10
T2
MAX202E
TV_on
B
C
+5V
Switch for
Development
Use Only
R80 2.00K
Micro Controller
U4
2
PIC16F877-20/L
MAX809
RESET
+5V
S10
1
2
U5
2
Buf_Protect_N
MCLR
3
RA0/AN0
RD0/PSP1
BASS_PWM
4
RA1/AN1
RD1/PSP1
LS_Spkr_data
5
RA2/AN2
RD2/PSP2
LS_Turn_On
6
RA3/AN3
RD3/PSP3
IR_IN
7
RA4
RD4/PSP4
TV_on
8
RA5/AN4
RD5/PSP5
Front1
36
RB0/Int
RD6/PSP6
37
Front2
RB1
RD7/PSP7
38
Center1
RB2
39
Center2
RB3
41
Surround1
RB4
Surround2
42
RB5
Bass1
43
RB6
RC4/SDI
Bass2
44
RB7
RC5/SDO
Amp_Power
11
RE2/AN7
10
RE1/AN6
+5V
+5V
9
RE0/AN5
14
OSC1
+5V
R15
20.0K
U6
24C01A
R16
R17 2.00K
20.0K
1
SDA 5
S0
2
SCL 6
S1
3
S2
PP 7
SOCKETED
Y1
C17
8MHZ
15pF
RJ45
S/PDIF
INPUTS
1
2
3
4
J7
5
6
7
8
+12V
C68
0.1uF
R121 100K
R122 100K
TREBLE_PWM
U15A
C69
NE5532D8
+12V
-12V
0.068uF
-12V
D2
+5V
C70
C71
BAV99
3
2
0.1uF
0.1uF
+12V
C72
0.1uF
R124 100K
R125 100K
BASS_PWM
Amp_Power
U15B
!
C73
NE5532D8
0.068uF
REPLACE WITH
!
-12V
AC Mains Input Bose
FUSE OF EQUAL
P/N: 146563
AC Power Switch
RATING
N H
2
1
H
5MM T3A 250V
!
F4
S9
1
2
J5
Only on Euro
version. Insert
+5V
shorting jumper on
other variants
R66
100
R69
200
!
1
Q5
2
1
R74
2
Q7
MMBT3904
10.0K
R76 300
!
120V: install JP1 & JP3
240V: install JP2
U12 7805
T5 7
1
1
2
1
3
JP1
1
Vi
Vo
3
9
4 -
+
D22
JP2
1
2
4
10
C51
JP3
1
2
6
12
+
1000uF
Tamura
35V
PL2.5-20-130B
DIGITAL GND
MECCA @ C50
MINUS PIN
U14 7808
1
3
Vi
Vo
C60
0.1uF
C
D
Set_Audio
+12V
+5V
+5V
+5V
R2
R4
R3
2.00K
470
470
D27
D28
D29
D30
LED GRN
LED YEL
LED RED
LED YEL
Power
Fault
Setup
Cmnd
R92
R108
10.0K
470
+5V
21
TREBLE_PWM
22
Cmnd_LED
23
FAULT_LED
R11
R12
R13
24
SETUP_LED
+5V
47K
47K
47K
30
31
AEQ
32
33
No_LSn
16
RC0
18
RC1
19
R14 10.0K
RC2
20
R83
10.0K
DIG_SEL_A
RC3
25
R84
10.0K
DIG_SEL_B
26
R89
10.0K
DIG_EN
27
R82
100
Tx_RS232
RC6/Tx
29
Rx_RS232
RC7/Rx
15
OSC2
C64
R90
47pF
100
C62
47pF
R67
10.0K
C18
15pF
D8
BAV99
D9
BAV99
3
2
3
2
SPDIF inputs and selector
1
8
R2575
C22
0.1uF
U9
T1
DG409CY
4
5
C23
1
8
4
DA 8
S1A
5
DB 9
0.1uF
R2875
S2A
T2
6
S3A
7
S4A
4
5
1
8
13
12 S1B
R3775
11 S2B
C28
T3
10 S3B
0.1uF
S4B
4
5
1
8
1
A0
16
R3975
A1
C29
T4
2
0.1uF
EN
4
5
14
SC937-02
+VCC
2
3
2
3
3
+12V
-VCC
D36
D18
D19
-12V
+5V
BAV99
BAV99
BAV99
3
2
C34
C35
TREBLE
0.1uF
C4
0.1uF
0.1uF
R119 1.00K
Connections from
D38
+5V
power amp PCB
BAV99
+5V
3
2
J22
1
BASS
R99
2
3
100K
R123 1.00K
Q1
4
MMBT3904
5
Buf_Protect_N
6
Q2
7
MMBT3904
8
R10 100
9
2
2
10
11
12
13
C67
14
.001uF
R98
15
3.65K
JST XH 2.5MM
B15B-XH-A
TOP ENTRY
Power supply failure monitor
level translator
Protect
!
!
AC TRANSFORMER
Q6
J18
Secondary
Wired
3
Directly to
2
Amplifier
1
PCB
EUR0-3
+5V
C50
+
C52
R91
R94
22uF
0.1uF
D1
R87
0 ohm
0 ohm
10V
0 ohm
7.5V SOT-23
U16
U10
1
U4
C76
C54
C55
0.1uF
0.1uF
0.1uF
+8V
+
C59
C61
22uF
0.1uF
10V
Service Manual P/N: 263494 Rev. 00
D
E
Left_Input
Right_Input
Connection to/from DSP PCB
S7
J4
8
1
TREBLE
7
2
BASS
1
2
SHUTDOWN_N
6
3
DC_offset
3
4
LS-TX
5
4
5
6
TTY_OUT
7
8
SPDIF-IN
9
SPARE_1
10
Left_Input
11
12
Right_Input
13
14
Tx_RS232
Rx_RS232
1
JST RC-D14-290
+5V
R95
R115
10.0K
100K
R81
0 Ohm
C66
47pF
NU
C24 .001uF
C33
.033uF
R49
10
4
+
3
Left
-
Front
2
Speakers
+
C31 .001uF
C77 0.1uF
Right
1
-
R53 10
C78 0.1uF
J12
C40
.033uF
L-
L+SPKR
2
C+SPKR
Center
+
R+SPKR
1
C-
Speaker
-
RS+SPKR
C41 .033uF
RS-LS-
J13
C13
LS+SPKR
B-
.001uF
R63 10
B+SPKR
Protect
.033uF
+12V
C42
C79
0.1uF
C20
.001uF
-12V
R64 10
4
+
3
Left
-
Surround
2
Speakers
+
1
Right
-
R70 10
C2 .001uF
J14
C44 .033uF
2
+
Bass
1
R73 10
-
Speaker
J15
C45 .033uF
C80 0.1uF
+5V
U6
U5
U5
FRAMINGHAM, MA 01701-9168
C56
C57
C58
0.1uF
0.1uF
0.1uF
TA-1 Home Theater Amplifier
Input/Output PCB
PCB P/N: 256441 Rev. 02
Sheet 1 of 1
E
4
3
2
1
R