Bose BUILT-INvisible TA-1 User manual

A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
R16 20.0K
D22
2
1
3
4
-+
U15B
NE5532D8
R121 100K
U10A
MAX202E
1114 T1
RN2H
5K 89
D38
BAV99
1
23
R124 100K
C72
0.1uF
R9
100K
D31
AZ23-C16
1 2
3
R125 100K
C10
270pF NPO
Q1
MMBT3904
2
13
R29 4.75K
4.75KR31 4.75KR30
U15A
NE5532D8
J9
1
2
3
C52
0.1uF
4.75KR35
C50
22uF
10V
+
4.75KR34 4.75KR33 4.75KR32
D1
7.5V SOT-23
31
U9 DG409CY
EN
2
S1A
4
S2A
5
S3A
6
S4A
7
DA 8
DB 9
S4B
10 S3B
11 S2B
12 S1B
13
GND 15
A0
1
A1
16
+VCC
14
-VCC
3
U12 7805
Vi
1Vo 3
GND 2
R36 4.75K
R109 1.00K
D23
BAV99
1
23
D40
AZ23-C16
12
3
J14
1
2
3
4
U8A
NE5532D8
U16
SN74AHC1G08
A
1
B
2
GND
3
Y4
VCC
5
C27
0.1uF
C26
0.1uF
D19
BAV99
1
2 3
D8 BAV99
1
23
C14
270pF NPO
0 ohmR81
U2B
NE5532D8
J6
1
2
3
4
5
C35
0.1uF
D9 BAV99
1
23
C34
0.1uF
C77 0.1uF
C65
0.001uF
J8
1
2
3
4
C69
0.068uF
U10B
MAX202E
10
7T2
C68
0.1uF
R72 1.00K
R122 100K
R71 330
T1
1 8
4 5
R77
47K
R116 1.00K
C16
0.1uF
C15
0.1uF
R95
10.0K
D33
AZ23-C16
1 2
3
U7A
NE5532D8
R10 100
R18 2.00K
R67
10.0K
K1
TX2SA-5V
4
3
5
98
10
1
12
C70
0.1uF
C21
270pF NPO
D32
AZ23-C16
1 2
3
R112
1.00K
C71
0.1uF
R99
100K
C38
0.1uF
RN1H
5K 89
R115
100K
C67
.001uF R98
3.65K
Q2
MMBT3904
2
13
R75 2.00K
C75
0.1uF
C7
0.1uF
R79
47K
C6
0.1uF
Q4
MMBT3904
2
13
D18
BAV99
1
2 3
J18
HEADER 3
1
2
3
R106 1.00K
C60
0.1uF
JP1 1 2
C25
270pF NPO
R65
10
C24 .001uF
R74
10.0K
J1
HEADER 6X2
12
34
56
78
910
11 12
C78 0.1uF
C13
.001uF
R128
200K
C31 .001uF
C62
47pF
R90
100
U7B
NE5532D8
R69
200
Y1
8MHZ
R119 1.00K
R104 4.99K
R123 1.00K
D26
AZ23-C16
12
3
R3
470
U5
PIC16F877-20/L
MCLR
2
RA0/AN0
3
RA1/AN1
4
RA2/AN2
5
RA3/AN3
6
RA4
7
RA5/AN4
8
RB0/Int
36
RB1
37
RB2
38
RB3
39
RB4
41
RB5
42
RB6
43
RB7
44
OSC1
14
RE0/AN5
9
RE1/AN6
10
RE2/AN7
11
RD0/PSP1
21
RD1/PSP1
22
RD2/PSP2
23
RD3/PSP3
24
RD4/PSP4
30
RD5/PSP5
31
RD6/PSP6
32
RD7/PSP7
33
RC0
16
RC1
18
RC2
19
RC3
20
RC4/SDI
25
RC5/SDO
26
RC6/Tx
27
RC7/Rx
29
OSC2
15
D34
AZ23-C16
1 2
3
R117
1.00K
C81
0.1uF
R2
2.00K
R25 75
C80 0.1uF
C40
.033uF R53 10
U4
MAX809
GND 1
VCC
3
RESET 2
R73 10
C45.033uF
C79 0.1uF
C44 .033uF
R70 10
R66
100
C32
270pF NPO
R4
470
R131 1.00K
C57
0.1uF
U1A
NE5532D8
C61
0.1uF
C59
22uF
10V
+
J22
JST XH 2.5MM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R19 2.00K
C58
0.1uF
C37
270pF NPO
R22 2.00K
U14 7808
Vi
1Vo 3
GND 2
R21 2.00K
C74
0.001uF
C56
0.1uF
R23 2.00K
C55
0.1uF
R24 2.00K
R27 2.00K
C42 .033uF
R26 2.00K
R64 10
C54
0.1uF
D24
BAV99
1
23
R76 300
C11
0.1uF
R82 100
C64
47pF
S10
1 2
R80 2.00K
C18
15pF
S7
1
2
3
4
8
7
6
5
U3 DG409CY
EN
2
S1A
4
S2A
5
S3A
6
S4A
7
DA 8
DB 9
S4B
10 S3B
11 S2B
12 S1B
13
GND 15
A0
1
A1
16
+VCC
14
-VCC
3
C17
15pF
C12
0.1uF
RN1G
5K
7 10
J12
1
2
3
4
C41 .033uF
R63 10
C22 0.1uF
RN1B
5K
2 15
RN1C
5K 314
C23
0.1uF
U8B
NE5532D8
RN1F
5K 611
C19 47pF
D37
AZ23-C16
1 2
3
C1 47pF
RN1D
5K 413
C20
.001uF
RN1A
5K
1 16
J21
1
2
3
4
5C29
0.1uF
R49 10
C33 .033uF
C28
0.1uF
S9
JP2 1 2
S1
1
24 3
R20 4.99K
J15
1
2
D25
AZ23-C16
12
3
R94
0 ohm
R89 10.0K
RN3E
5K 512
C2 .001uF
JP3 1 2
S4
SW DIP-4
1
2
3
4
8
7
6
5
U10D
MAX202E
8 9
R2
RN3A
5K
1 16
R108
470
R83 10.0K
R84 10.0K
U10C
MAX202E
13 12
R1
R28 75
R14 10.0K
RN3B
5K
2 15
RN3C
5K 314
R37 75
C46
0.1uF C47
0.1uF
R1 4.99K
C48
0.1uF
R126 1.00K
RN3F
5K 611
R86 100
C49
0.1uF
R93
10.0K
R92
10.0K
R39 75
F4
5MM T3A 250V
12
RN3G
5K
7 10
R120 1.00K
D27
LED GRN
2 1
RN3D
5K 413
J7
6
5
4
3
2
1
7
8
U2A
NE5532D8
D28
LED YEL
2 1
D29
LED RED
2 1
RN3H
5K 89
D30
LED YEL
2 1
D36
BAV99
1
23
C51
1000uF
35V
+
U10E
MAX202E
C1+
1
C1-
3
C2- 5
C2+ 4
V-
6
V+ 2
GND 15
+5V
16
T4
SC937-02
1 8
4 5
D39
AZ23-C16
1 2
3
C66
47pF
omit
T3
1 8
4 5
RN4F
5K 611
T2
1 8
4 5
R130 100
R129 470
C76
0.1uF
J4
JST RC-D14-290
12
34
56
78
910
11 12
13 14
20.0K
F2 RXE010
12
U6
24C01A
GND 4
SDA 5
SCL 6
PP 7
VCC
8
S0
1
S1
2
S2
3
J11
1
2
3
R17 2.00K
C53
4.7uF
35V
+
C8 47pF
F1 RXE010
12
RN4C
5K 314
200KR47
R38 4.99K
200KR48 200KR45
R44 200K
R78
75
U11
RPM-638CBL
Vcc 3 OUT 1 GND 2
RN4B
5K
2 15
200KR46
J10
1
2
3
4
5
C4
0.1uF
RN4E
5K 512
D3
2 1
C3
270pF NPO
R8 4.99K
R88 300
RN4D
5K 413
D21
BAV99
1
23
R87
0 ohm
D2
BAV99
1
23
RN1E
5K 512
R127
1.00K
RN2E
5K 512
RN4H
5K 89
D41
AZ23-C16
1 2
3
C39
0.1uF
R40 10.0K
C30 47pF
RN2A
5K
1 16
J5
2 1
NH
RN2B
5K
2 15
RN2C
5K 314
U1B
NE5532D8
RN4G
5K
7 10
D35
AZ23-C16
12
3
R118
1.00K
Q6
1
2 3
J13
1
2
Q5
1
2
6 4
T5 71
9
10
6 12
3
4
R91
0 ohm
C5
270pF NPO
Q7
MMBT3904
2
1
3
RN2F
5K 611
C73
0.068uF
R11
47K
RN4A
5K
1 16
RN2G
5K
7 10
R105 1.00K
RN2D
5K 413
R12
47K
R13
47K
Center2
LS_Spkr_data
IR_IN
Cmnd_LED
TREBLE_PWM
Bass1
Front1
FAULT_LED
Buf_Protect_N
Rx_RS232
L+SPKR
R+SPKR
C-
B-
RS+SPKR
LS+SPKR
RS-LS-
L-
B+SPKR
C+SPKR
+8V_FUSED
SETUP_LED
Bass2
Surround2
Surround1
Center1
Front2
Protect
TV_on
Right_Input
Right_Input
Right_Input
Left_Input
Left_Input
Left_Input
Amp_Power
MR-
DIG_SEL_B
Set_Audio Set_Audio
Left_Music_Input
Right_Music_Input
Right_Video_Input
AEQ
No_LSn
DIG_SEL_A
Left_Video_Input
DIG_EN
Tx_RS232
Protect
Right_Input
TTY_OUT
SHUTDOWN_N
TREBLE
BASS_PWM
BASS
DC_offset
Left_Input
SPDIF-IN
LS-TX
H
Amp_Power
Buf_Protect_N
SPARE TREBLE_PWM TREBLE
BASS
BASS_PWM
LS_Spkr_data
LS_Turn_On
LS_Turn_On
IR_In
+5V_FUSED
TV_on
SPARE_1
ML-
SPARE_1
VL-
ML- VR- MR-
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+8V
+8V
+5V
+5V
+5V
+5V
+12V
-12V
1
1
11
1
1
1
1
1
1
1
1
1
1
1
1
-12V+12V
+12V
-12V -12V
+12V +12V
-12V
+12V
-12V
+12V
-12V
+12V
-12V
+12V
-12V
-12V
+12V
+12V
-12V
+12V -12V
+12V -12V
1 1
1 1
1 1
+12V
-12V
1
1
+5V
1
+5V
1
+5V
+5V
+5V
1
+12V -12V
1
+5V
+5V+12V
-12V
+12V +5V
+5V
+12V
-12V
+12V -12V
+5V
1 1
+5V
+5V
+5V +5V
+5V
+5V
+5V
Rx_RS232
Rx_RS232
Tx_RS232
Tx_RS232
Music
Audio
Inputs
Left
Right
+
-
GND
+
-
AC TRANSFORMER
+
+
+
-
Front
Speakers
+
Surround
Speakers
Bass
Speaker
-
-
+
+
Center
Speaker
Left
Right
-
-
-
RS232C
Serial
Spkr Data/Tx
GND
Turn-On/Rx
Ant/DTR
Music
Center
Input
GND
IR
Input
GND
IR+
IR Sensor
TV
Sensor
+8V
IR-
+5V
On
-
+
-
Right +
Left
Video
Audio
Inputs
GND
Power Cmnd Fault Setup
RJ45
S/PDIF
INPUTS
Secondary
Wired
Directly to
Amplifier
PCB
B15B-XH-A
TOP ENTRY
DIGITAL GND
MECCA @ C50
MINUS PIN U5U5U6U10U4
SOCKETED
Switch for
Development
Use Only
AC Mains Input Bose
P/N: 146563
Only on Euro
version. Insert
shorting jumper on
other variants
Differential analog inputs
Power supply failure monitor
level translator
SPDIF inputs and selector
Connections from
power amp PCB
Connection to/from DSP PCB
analog source selector
Speaker EQ
selector switch
Micro Controller
Tamura
PL2.5-20-130B
120V: install JP1 & JP3
240V: install JP2
Header to Test
Accessory
REPLACE WITH
FUSE OF EQUAL
RATING
P/N: 181561-3000
Rx
Tx
Relay shown
deenergized
(normal use).
U16
!
!
!
!
!
Close Switches
to Short
Negative Inputs
!!!
R15
!!
Left
Right
R
FRAMINGHAM, MA 01701-9168
TA-1 Home Theater Amplifier
Input/Output PCB
PCB P/N: 256441 Rev. 01
Sheet 1 of 1
Service Manual P/N: 263494 Rev. 00

A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
R16
20.0K
D22
2
1
3
4-+
U15B
NE5532D8
R121 100K
U10A
MAX202E
1114 T1
RN2H
5K 89
D38
BAV99
1
23
R124 100K
C72
0.1uF
R9
100K
D31
AZ23-C16
1 2
3
R125 100K
C10
270pF NPO
Q1
MMBT3904
2
13
R29 4.75K
4.75KR31 4.75KR30
U15A
NE5532D8
J9
1
2
3
C52
0.1uF
4.75KR35
C50
22uF
10V
+
4.75KR34 4.75KR33 4.75KR32
D1
7.5V SOT-23
31
U9
DG409CY
EN
2
S1A
4
S2A
5
S3A
6
S4A
7
DA 8
DB 9
S4B
10 S3B
11 S2B
12 S1B
13
GND 15
A0
1
A1
16
+VCC
14
-VCC
3
U12 7805
Vi
1Vo 3
GND 2
R36 4.75K
R109
1.00K
D23
BAV99
1
23
D40
AZ23-C16
12
3
J14
1
2
3
4
U8A
NE5532D8
U16
SN74AHC1G08
A
1
B
2
3
Y4
5
C27
0.1uF
C26
0.1uF
D19
BAV99
1
2 3
D8 BAV99
1
23
C14
270pF NPO
0 Ohm R81
U2B
NE5532D8
J6
1
2
3
4
5
C35
0.1uF
D9 BAV99
1
23
C34
0.1uF
C77 0.1uF
C65
0.001uF
J8
1
2
3
4
C69
0.068uF
U10B
MAX202E
107T2
C68
0.1uF
R72
1.00K
R122 100K
R71
330
T1
1 8
4 5
R77
47K
R116
1.00K
C16
0.1uF
C15
0.1uF
R95
10.0K
D33
AZ23-C16
1 2
3
U7A
NE5532D8
R10 100
R18 2.00K
R67
10.0K
K1
TX2SA-5V
4
3
5
98
10
1
12
C70
0.1uF
C21
270pF NPO
D32
AZ23-C16
1 2
3
R112
1.00K
C71
0.1uF
R99
100K
C38
0.1uF
RN1H
5K 89
R115
100K
C67
.001uF R98
3.65K
Q2
MMBT3904
2
13
R75 2.00K
C75
0.1uF
C7
0.1uF
R79
47K
C6
0.1uF
Q4
MMBT3904
2
13
D18
BAV99
1
2 3
J18
EUR0-3
1
2
3
R106
1.00K
C60
0.1uF
JP1 1 2
C25
270pF NPO
R65
10
C24 .001uF
R74
10.0K
J1
HEADER 6X2
12
34
56
78
910
11 12
C78 0.1uF
C13
.001uF
R128
200K
C31 .001uF
C62
47pF
R90
100
U7B
NE5532D8
R69
200
Y1
8MHZ
R119 1.00K
R104 4.99K
R123 1.00K
D26
AZ23-C16
12
3
R3
470
U5
PIC16F877-20/L
MCLR
2
RA0/AN0
3
RA1/AN1
4
RA2/AN2
5
RA3/AN3
6
RA4
7
RA5/AN4
8
RB0/Int
36
RB1
37
RB2
38
RB3
39
RB4
41
RB5
42
RB6
43
RB7
44
OSC1
14
RE0/AN5
9RE1/AN6
10 RE2/AN7
11
RD0/PSP1 21
RD1/PSP1 22
RD2/PSP2 23
RD3/PSP3 24
RD4/PSP4 30
RD5/PSP5 31
RD6/PSP6 32
RD7/PSP7 33
RC0 16
RC1 18
RC2 19
RC3 20
RC4/SDI 25
RC5/SDO 26
RC6/Tx 27
RC7/Rx 29
OSC2 15
D34
AZ23-C16
1 2
3
R117
1.00K
C81
0.1uF
R2
2.00K
R2575
C80 0.1uF
C40 .033uF
R53 10
U4
MAX809
GND 1
VCC
3
RESET
2
R73 10
C45 .033uF
C79 0.1uF
C44 .033uF
R70 10
R66
100
1 2
C32
270pF NPO
R4
470
R131 1.00K
C57
0.1uF
U1A
NE5532D8
C61
0.1uF
C59
22uF
10V
+
J22
JST XH 2.5MM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R19 2.00K
C58
0.1uF
C37
270pF NPO
R22 2.00K
U14 7808
Vi
1Vo 3
GND 2
R21 2.00K
C74
0.001uF
C56
0.1uF
R23 2.00K
C55
0.1uF
R24 2.00K
R27 2.00K
C42 .033uF
R26 2.00K
R64 10
C54
0.1uF
D24
BAV99
1
23
R76 300
C11
0.1uF
R82 100
C64
47pF
S10
1 2
R80 2.00K
C18
15pF
S7
1
2
3
4
8
7
6
5
U3 DG409CY
EN
2
S1A
4
S2A
5
S3A
6
S4A
7
DA 8
DB 9
S4B
10 S3B
11 S2B
12 S1B
13
GND 15
A0
1
A1
16
+VCC
14
-VCC
3
C17
15pF
C12
0.1uF
RN1G
5K
710
J12
1
2
3
4
C41 .033uF
R63 10
C22 0.1uF
RN1B
5K
215
RN1C
5K 314
C23
0.1uF
U8B
NE5532D8
RN1F
5K 611
C19 47pF
D37
AZ23-C16
1 2
3
C1 47pF
RN1D
5K 413
C20
.001uF
RN1A
5K
116
J21
1
2
3
4
5
C29
0.1uF
R49 10
C33 .033uF
C28
0.1uF
S9
JP2 1 2
S1
1
2
4
3
R20 4.99K
J15
1
2
D25
AZ23-C16
12
3
R94
0 ohm
R89 10.0K
RN3E
5K 512
C2 .001uF
JP3 1 2
S4
SW DIP-4
1
2
3
4
8
7
6
5
U10D
MAX202E
8 9
R2
RN3A
5K
116
R108
470
R83 10.0K
R84 10.0K
U10C
MAX202E
13 12
R1
R2875
R14 10.0K
RN3B
5K
215
RN3C
5K 314
R3775
C46
0.1uF C47
0.1uF
R1 4.99K
C48
0.1uF
R126
1.00K
RN3F
5K 611
R86 100
C49
0.1uF
R93
10.0K
R92
10.0K
R3975
F4
5MM T3A 250V
1 2
RN3G
5K
710
R120
1.00K
D27
LED GRN
21
RN3D
5K 413
J7
6
5
4
3
2
1
7
8
U2A
NE5532D8
D28
LED YEL
21
D29
LED RED
21
RN3H
5K 89
D30
LED YEL
21
D36
BAV99
1
23
C51
1000uF
35V
+
U10E
MAX202E
C1+
1
C1-
3
C2- 5
C2+ 4
V-
6
V+ 2
15
16
T4
SC937-02
1 8
4 5
D39
AZ23-C16
1 2
3
C66
47pF
T3
1 8
4 5
RN4F
5K 611
T2
1 8
4 5
R130 100
R129 470
C76
0.1uF
J4
JST RC-D14-290
12
34
56
78
910
11 12
13 14
R15
20.0K
F2 RXE010
12
U6 24C01A
GND 4
SDA 5
SCL 6
PP 7
VCC
8
S0
1
S1
2
S2
3
J11
1
2
3
R17 2.00K
C53
4.7uF
35V
+
C8 47pF
F1 RXE010
12
RN4C
5K 314
200KR47
R38 4.99K
200KR48 200KR45
R44 200K
R78
75
U11
RPM-638CBL
Vcc 3 OUT 1 GND 2
RN4B
5K
215
200KR46
J10
1
2
3
4
5
C4
0.1uF
RN4E
5K 512
D3
2 1
C3
270pF NPO
R8 4.99K
R88 300
RN4D
5K 413
D21
BAV99
1
23
R87
0 ohm
D2
BAV99
1
23
RN1E
5K 512
R127
1.00K
1 2
RN2E
5K 512
RN4H
5K 89
D41
AZ23-C16
1 2
3
C39
0.1uF
R40 10.0K
C30 47pF
RN2A
5K
116
J5
2 1
NH
RN2B
5K
215
RN2C
5K 314
U1B
NE5532D8
RN4G
5K
710
D35
AZ23-C16
1 2
3
R118
1.00K
Q6
1
2 3
J13
1
2
Q5
1
2
6 4
T5 71
9
10
612
3
4
R91
0 ohm
C5
270pF NPO
Q7
MMBT3904
2
13
RN2F
5K 611
C73
0.068uF
R11
47K
RN4A
5K
116
RN2G
5K
710
R105
1.00K
RN2D
5K 413
R12
47K R13 47K
Center2
LS_Spkr_data
IR_IN
Cmnd_LED
TREBLE_PWM
Bass1
Front1
FAULT_LED
Buf_Protect_N
Rx_RS232
L+SPKR
R+SPKR
C-
B-
RS+SPKR
LS+SPKR
RS-LS-
L-
B+SPKR
C+SPKR
+8V_FUSED
SETUP_LED
Bass2
Surround2
Surround1
Center1
Front2
Protect
TV_on
Right_Input
Right_InputRight_Input
Left_Input
Left_InputLeft_Input
Amp_Power
MR-
DIG_SEL_B
Set_Audio Set_Audio
Left_Music_Input
Right_Music_Input
Right_Video_Input
AEQ
No_LSn
DIG_SEL_A
Left_Video_Input
DIG_EN
Tx_RS232
Protect
Right_Input
TTY_OUT
SHUTDOWN_N
TREBLE
BASS_PWM
BASS
DC_offset
Left_Input
SPDIF-IN
LS-TX
H
Amp_Power
Buf_Protect_N
SPARE
TREBLE_PWM TREBLE
BASS
BASS_PWM
LS_Spkr_data
LS_Turn_On
LS_Turn_On
IR_In
+5V_FUSED
TV_on
SPARE_1
ML-
SPARE_1
VL-
ML-
VR-
MR-
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+8V
+8V
+5V
+5V
+5V
+5V
+12V
-12V
1
1
11
1
1
1
1
1
1
1
1
1
1
1
1
-12V+12V
+12V
-12V -12V
+12V +12V
-12V
+12V
-12V
+12V
-12V
+12V
-12V
+12V
-12V
-12V
+12V
+12V
-12V
+12V -12V
+12V -12V
1 1
1 1
1 1
+12V
-12V
1
1
+5V
1
+5V
1
+5V
+5V
+5V
1
+12V -12V
1
+5V
+5V
+12V
-12V
+12V +5V
+5V
+12V
-12V
+12V -12V
+5V
1 1
+5V
+5V
+5V +5V
+5V
+5V
+5V
Rx_RS232
Rx_RS232
Tx_RS232
Tx_RS232
Music
Audio
Inputs
Left
Right
+
-
GND
+
-
AC TRANSFORMER
+
+
+
Right
-
Front
Speakers
+
Surround
Speakers
Bass
Speaker
-
-
Left
+
+
Center
Speaker
Left
Right
-
-
-
RS232C
Serial
Spkr Data/Tx
GND
Turn-On/Rx
Ant/DTR
Music
Center
Input
GND
IR
Input
GND
IR+
IR Sensor
TV
Sensor
+8V
IR-
+5V
On
-
+
-
Right +
Left
Video
Audio
Inputs
GND
Power Cmnd Fault Setup
Secondary
Wired
Directly to
Amplifier
PCB
B15B-XH-A
TOP ENTRY
DIGITAL GND
MECCA @ C50
MINUS PIN
U5
U5U6
U10
U4
SOCKETED
AC Power Switch
AC Mains Input Bose
P/N: 146563
Only on Euro
version. Insert
shorting jumper on
other variants
Differential analog inputs
Power supply failure monitor
level translator
SPDIF inputs and selector
Connections from
power amp PCB
Connection to/from DSP PCB
analog source selector
Speaker EQ
selector switch
Micro Controller
Tamura
PL2.5-20-130B
120V: install JP1 & JP3
240V: install JP2
Header to Test
Accessory
REPLACE WITH
FUSE OF EQUAL
RATING
Rx
Tx
Relay shown
deenergized
(normal use).
U16
Close Switches
to Short
Negative Inputs
!
!
!
!
!!
NU
!
Switch for
Development
Use Only
RJ45
S/PDIF
INPUTS
R
FRAMINGHAM, MA 01701-9168
TA-1 Home Theater Amplifier
Input/Output PCB
PCB P/N: 256441 Rev. 02
Sheet 1 of 1
Service Manual P/N: 263494 Rev. 00

876543 1
2345678
A
B
C
DD
C
B
A
1
2
R
FRAMINGHAM, MA 01701-9168
TA-1 Home Theater Amplifier
Amplifier PCB
PCB P/N: 256421 Rev. 01
Sheet 1 of 2
Service Manual P/N: 263494 Rev. 00

876543 1
2345678
A
B
C
DD
C
B
A
1
2
R
FRAMINGHAM, MA 01701-9168
TA-1 Home Theater Amplifier
Amplifier PCB
PCB P/N: 256421 Rev. 01
Sheet 2 of 2
Service Manual P/N: 263494 Rev. 00

+12V
+12V
+20V
+20V
+20V
MUTE_LR
-40V -40V
-40V -40V
-40V
-40V -40V
-40V
-40V
-40V
-40V
+40V
+40V +40V
+40V +40V
+40V +40V
+40V
+40V
+40V
+40V +40V
RS_EQAUD
RS+SPKR
R_EQAUDC_EQAUD L_EQAUD
B_EQAUD
LS_EQAUD
-20V
-20V
-20V
B+SPKR_OUT
B+SPKR
CMP_OUT CMP_OUT
CMP_OUT CMP_OUT
CMP_OUT
CMP_BIAS CMP_BIAS
CMP_BIAS CMP_BIAS
CMP_BIAS
CMP_BIAS
LS+SPKR
-12V
-12V
-12V
C+SPKR L+SPKR
STBY
STBYSTBY
STBY
STBY
R+SPKR
7294_MUTE_C
7294_MUTE_LSRS
7294_MUTE_LSRS
7294_MUTE_LR7294_MUTE_LR
R
FRAMINGHAM, MA 01701-9168
876543 1
2345678
A
B
C
DD
C
B
A
1
2.0K
146818
2.0K
1
100K
100K
100K100K100K
100K
200
10.0M
TIP146T
SGSD200
TIP146T
SGSD200
2.0K
10/25
10/2510/25 10/25
10/25
1N5402
1N5402
1N5402
1N5402
1N5402
1N5402
2SA1179
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
1.0
1.0
1.0
TIP141T
SGSD100
TIP141T
SGSD100
3904
3904
3904
3904
3904
3904
3904
3904
5.6V
5.6V
5.6V
5.6V
LM339
(3=+12V,12=-12V)
LM339
(3=+12V,12=-12V)
LM339
(3=+12V,12=-12V)
LM339
(3=+12V,12=-12V)
LM393
(4=-12V,8=+12V)
LM393
(4=-12V,8=+12V)
NC2
MUTE
STBY
IN+MUTE
IN+
IN-
-VS -PWVSSTBYGND
NC3 +VS +PWVS OUT
BTSTRAP
NC1 NC2
MUTE
STBY
IN+MUTE
IN+
IN-
-VS -PWVSSTBYGND
NC3 +VS +PWVS OUT
BTSTRAP
NC1
NC2
MUTE
STBY
IN+MUTE
IN+
IN-
-VS -PWVSSTBYGND
NC3 +VS +PWVS OUT
BTSTRAP
NC1NC2
MUTE
STBY
IN+MUTE
IN+
IN-
-VS -PWVSSTBYGND
NC3 +VS +PWVS OUT
BTSTRAP
NC1
NC2
MUTE
STBY
IN+MUTE
IN+
IN-
-VS -PWVSSTBYGND
NC3 +VS +PWVS OUT
BTSTRAP
NC1
49.9K
1.5K
1.5K
1.5K
1.5K
1.0K
2.49K
1.0K
2.49K
49.9K49.9K
49.9K
49.9K
301
4559
(8=+12V,4=-12V)
(8=+12V,4=-12V)
4559
0.1
10/16
1.0/50
0.47/50
1.0/50
10/16
1.0/50
10/16
0.47/50
1.0/50
0.47/50
10/16
10/16
1.0/50
10/16
1.0/50
0.47/500.47/50
100/16 .001
.001
.001
.001
.001
.001.001
.001
.001
.001
.001
.001
.01
.01
.01
.01
3.65K
3.65K
330K
330K
330K330K 3.65K
3.65K
330K 3.65K
.001
270p
.001
.001
.001
.0033
.0033
.01
3906
3906 3906
3906
3906
3906
3906
140349
332
49.9K
332332
332
332
49.9K
3.65K
16.5K
2.49K
100K
2.49K
49.9K
16.5K
2.49K
2.49K
49.9K
16.5K
2.49K
4.22k
16.5K
100K
200K
3.65K100K
3.65K
49.9K
49.9K
16.5K
2.49K
2.49K
100K
3.65K
2.49K
33.2K
100K
2.49K
2.49K
16.5K
100K
100K
220 5.1
75
1.0K
1.0K
1.0K1.0K
1.0K
100K
1.0K
1.0K
1.0K
1.0K
1.0K
1.0K
1.0K
10K
100K
1.0K
10K
10K
1.0K
10K
1.0K
10K
1.0M
75
0.062
100K
1.0M
BAV99L
BAV99L BAV99L
BAV99L BAV99L
BAV99L
TP870
R826
Q726
R825
R788
R725
R772
R779R728R743
R733
R786
R783
Q700
Q715
Q705
Q718
R827
C716
C705C712 C721
C711
D710
D704
D711
D707
D706
D712
Q725
C733
C744
C763
C764
C736
C746
C760
C726
C771
C762
C765
Q706
Q720 Q709
Q719
Q710
Q712
Q713
Q722
Q702
Q703
Q708
Q714
D720
D721
D722
Q724 D709
D703
D708
D701
14
8
9
U702
2
4
5
U702
1
6
7
U702
13
10
11
U702
1
2
3
U706
7
6
5
U706
12 7 13
14
6
5
1581
11
10
9
4
3
2
U703
TDA7294
12 7 13
14
6
5
1581
11
10
9
4
3
2
U700
TDA7294
12 7 13
14
6
5
1581
11
10
9
4
3
2
U701
TDA7294
12 7 13
14
6
5
1581
11
10
9
4
3
2
U704
TDA7294
12 7 13
14
6
5
1581
11
10
9
4
3
2
U705
TDA7294
R756
R705
R703
R706
R702
R741
R775
R732
R797
R721R752
R777
R736
R794
1
2
3
U707
7
6
5
U707
C761
C708
C717
C709
C702
C715
C713
C718
C707
C720
C714
C710
C706
C704
C722
C727
C723C719
TP800
TP801
TP802
TP803
TP804
TP805
TP806
TP807
TP808
TP809
TP810
TP811
TP812
TP813
TP718
TP814
TP719
TP716
TP714
TP710
TP815
TP816
TP817
TP818
TP717
TP709TP711
TP715
TP713TP712
TP819
TP820
TP821
TP822
TP823
TP824
TP825
TP826
TP827
TP828
TP829
TP830
TP831
TP832
TP833
TP834
TP835
TP836
TP837
TP838
TP840
TP846
TP852
TP858
TP841
TP847
TP853
TP859
TP842
TP848
TP854
TP860
TP843
TP849
TP855
TP861
TP844
TP850
TP856
TP862
TP845
TP851
TP857
TP863
TP865
TP864
TP867
TP866
TP868
TP703
TP706
TP705
TP704
TP701
C725 C734
C754
C737
C745
C747
C756C738
C743
C748
C735
C755
C757
C751
C741
C752
C742
TP869
R807
R802
R820
R819
R818R817 R805
R804
R816 R806
C740
C759
C749
C739
C750
C766
C753
D723
C758
Q707
Q717 Q704
Q711
Q721
Q701
Q723
Q716
R904
R781
R905R900
R901
R903
R720
R731
R723
R719
R742
R729
R749
R750
R748
R753
R738
R737
R739
R793
R790
R768
R789
R760R767
R734
R787
R758
R757
R759
R755
R744
R762
R722
R784
R812
R776
R782
R780
R821
R727
R711 R710
R712
R735
R726
R766R795
R792
R778
R773
R769
R763
R761
R774
R771
R745
R785
R796
R747
R746
R770
R730
R740
R764
R765
R791
R707
R822
R824
R823
TP871
D718
D705 D702
D716 D715
D719
1
D
S
-
+
1/4
-
+
1/4
-
+
1/4
-
+
1/4
-
+
1/2
-
+
1/2
-
+
1/2
-
+
1/2
2
2
2 2
2
2
2 2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
22
2
2
22
1
1
1 1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1 1
1
1
1
1
1
TA-1 Home Theater Amplifier
Amplifier PCB
PCB P/N: 256421 Rev. 02
Sheet 1 of 2
Service Manual P/N: 263494 Rev. 00
2

+12V
+12V
+12V
+12V
+20V
+20V
+20V
+20V
+20V
MUTE_LR
GND12
-40V
-40V
+20V_FUSED
+40V
+40V
-40V_FUSED
-40V_FUSED
RS_EQAUD
RS+SPKR
+40V_FUSED
+40V_FUSED
R_EQAUD
C_EQAUD
L_EQAUD
B_EQAUD
LS_EQAUD
-20V
-20V
B+SPKR
B+SPKRB+SPKR
B+SPKR
CMP_OUT
LS+SPKR
-12V
-12V
-12V
C+SPKR
L+SPKR
STBY
R+SPKR
7294_MUTE_C
PROTECT
7294_MUTE_LSRS
7294_MUTE_LR
100V,6A
100V,6A
876543 1
2345678
A
B
C
DD
C
B
A
1
112027
112027
FUSIBLE
2W5.1
LM337T
LM317T
KBJ601
KBJ601
2.2uF
NU
3.65K
274K
3.65K
22.1K
100K
3906
100K
.01
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
.01
274K 5.6V
0.1
0.1
47
NON_POLARIZED
20,1/4W
20,1/4W
1.0K
1/2W
4700/50
4700/50
30K 30K30K
2200
22002200
2200
432
22.1K
24.9K 49.9K
NU
24.9K 49.9K
432
10.0K
1.00K
10.0K
.01
274K
274K
.01
R704
1J702
32
1
U708
23
1
U709
B700
B701
C790
D717
R801
R716
R798
R700
R715
Q727
R717
C792
C772
C774
C770
C777
C779
C778
C773
C775
C776
C701
R828 D724
C768
C767
C724
FTP747
FTP729
FTP717
FTP738
FTP715
FTP736
FTP734
FTP721
FTP725
FTP745
FTP746
FTP714
FTP712
FTP703
FTP704
FTP709
FTP711
FTP706
FTP701
FTP702
FTP720
TP700
FTP735
FTP731
FTP737
FTP705
FTP730
FTP732
TP708
FTP713
TP707
FTP722
TP720
FTP700
FTP748
FTP726
FTP708
R714
R713
FTP710
TP702
GND1
R803
2J701
13J701
15J701
14J701
12J701
10J701
9J701
1J701
3J701
5J701
4J701
7J701
11J701
6J701
8J701
2J702
4J702
3J702
5J702
C791
C730
R814 R815R813
1J700
17J700
3J700
12J700
11J700
14J700
10J700
6J700
13J700
5J700
4J700
7J700
2J700
8J700
16J700
18J700
9J700
15J700
C732
C781C780
C731
R800
R708
R751 R810
R811
R754 R809
R799
R709
R724
R808
C700
R718
R701
C703
1
111
ADJ
INOUT
INOUT
ADJ
STARGND
12
2
2
1
1
1
1
1
11 1
1
1
1
R
FRAMINGHAM, MA 01701-9168
TA-1 Home Theater Amplifier
Amplifier PCB
PCB P/N: 256421 Rev. 02
Sheet 2 of 2
Service Manual P/N: 263494 Rev. 00
2

PG 2
PG 2
(SHT 4 J8-4)
(SHT 2)
DC_OFFSET DC_OFFSET
SHUTDOWN SHUTDOWN
+3.3V
+3.3V
P60
P61
OVL-ERR
GND
GND
GND
GND
GND
+17V-FUSED
+5VA
+5VA
+5VA
+5VA
+5VA
AOUT5-F
AOUT5-F
+5V
+5V
+5V
+5V
+5V
+5V
+5VD
+5VD
+5VD
+5VD
+5VD
+5VD
SDIN3
SDIN3
DEM
DEM
SCLKAUX
SCLKAUX
LRCKAUX
LRCKAUX
SPDIF-IN2
SDIN2
SDIN2
UC-CLP
SCLK-F
SCLK-F
SCLK-F
RX1
RX1
SER-DATA-IN SCL
SDA
P50
SPDIF-IN
SPDIF-IN
DATAUX
DATAUX
B-EQAUD
+5V-REG
AOUT3-F
AOUT3-F
V_IDENT
AOUT6-F
AOUT6-F
RS-EQAUD
DSP2-IRQ1
AOUT2-F
AOUT2-F
AOUT4-F
AOUT4-F
TTY-OUT LS-EQAUD
LEFT_INPUT
ALL
ALL
ALL
ALL
ALL
C-EQAUD
AMP-GND-SENSE
AMP-GND-SENSE
R-EQAUD
RIGHT_INPUT
AOUT1-F
AOUT1-F
INPUT_GND_REF
L-EQAUD
TURN-ON
AIN1R
AIN1R
+12V
+12V
+12V
+12V+12V
+12V
+12V
+12V
+12V
DSP1-IRQ2
LRCK-F
LRCK-F
SDOUT1-F
SDOUT1-F
RFS
RFS
CMOUT
DSP1-DR1
DSP1-RCLK1
DSP1-RFS1
DSP2-FLAG3
DSP2-DT1
SDIN1
SDIN1
DSP1-FLAG2
DSP1-FLAG3
XT0
XT0
DSP2-FLAG2
P07
P06
P03
P04
P02
P05
P01
P00
DSP1-FLAG1
DSP1-FLAG0
DSP2-FLAG1
DSP2-FLAG0
AIN1L
AIN1L
XT1
XT1
-12V
-12V
-12V
-12V
-12V
-12V
J9
J9
J9
J9
J9
J9
J9
R201-4
R204-4
R202
C200
R205
J9
J9
J9
J9
J9
J9
J9
C201
Z102
TP181
C160
C159
C158
C156
C157
C155
R9
R8 WP3
WP2
C114
WP1
C4
C116
TP175
TP177
TP172
R7
D1
TP171
TP178
C150
TP170
TP168
TP167 TP166
TP165
TP164
TP163
TP162
TP161
TP160 TP159
TP158 TP157
TP156 TP155
TP154 TP153
TP152
TP180
TP150
TP151
TP148TP147
TP146
TP145
TP144
TP143
TP142
TP141
TP139
TP138
TP137
TP136
TP135
TP134
TP133
TP132
TP131
TP130
TP129
TP120
TP119
TP118
TP117
TP116
TP114
TP115
TP113
TP112
TP111
TP110
TP109
TP108
TP107
TP106
TP105
TP104
TP103
CR100
U101
U1
U106
C141
C146
R6
R11
R171
R170
R169
R168
R167
R166
TP140
M106
R1
C1
C7
M151
R2
R164
D105
R108
R101
R101
R100
R101
R100
R100R100
R101
D104
D102
D100
M152 Z106
Z107
Z103
C145
R176
R5
R191
C151
C115
R125
L2
C3
C144
M150
R175
R165
Z110
U104
Z100
Z104
Z108
Z105
TP102
Z109
M101
M102
M100
M104
M103
R190
R156
C8
R157
R160
J5
U104 C138
R151
D3
R185
R152
R155
U105
U105
R4
C111
C103
D2
C113
C105
R104
C102
C100
C110
C109
C108
U104 C135
R146
TP179
R147
R150
TP100
U103 C130
R186
R141
R187
R192
R142
R145
R111
U103
R103
R136
R102
R112
R137
R140
C121
C104
R188
R193
U103 C124
U103
R189
R12
R135
R132
R107
R116
TP101
D103
R131
U100
R194
C127
U102
R195
R196
R161
M105
C6
R197
R3
L1
C5
R10
R198
C139
C2
C140
C131 C132
C107C106
C112 R113
C117 C118
1
2
13
14
11
10
9
10K
.01
10K
8
7
12
6
5
3
4
.01
1000pF
100pF
100pF
100pF
100pF
100pF
NV
NV
0.22/35V
330pF
2.2uF/10V
6.19K
BAV99L
47pF
2
1
HC-49/S
11.2896MHz
20
19
18
17
16
15
14
13
12
1110
9
8
7
6
5
4
3
2
1
3
2
1
LM78M05
14
13
12
11
10
9
87
6
5
4
3
2
1
NV
0.01
3.48K
16/1W
100K
100K
100K
100K
100K
100K
75
.01
47pF
100
200
BAV99L
3.0K
65
1.0K
87
1.0K
21
1.0K
43
1.0K
43
1.0K
87
1.0K
65
1.0K
21
1.0K
BAV99L
BAV99L
BAV99L
.01
2.0
100
6.04K
.01
.022
3.0K
BEAD
.01
.01
1M
100K
8
9
10
TL074
1.00K
10.0K
1.0uF
60.4K
200
15 14
13
12 11 10 9
8765
4321
7
6
5
TL074
.001
10.0K
BAV99L
75
60.4K
200
7
6
5
(8=+12v,4=-12v)
4559
1
2
3
(8=+12v,4=-12v)
4559
30,5%
100P
100P
BAV99L
.001
.001
300
330pF
.001
330pF
.001
.01
1
2
3
TL074
.001
10.0K
60.4K
200
14
13
12
TL074
.001
75
10.0K
75
75
60.4K
200
1.00K
8
9
10
TL074
100
10.0K
1.00K
100
60.4K
200
.001
10uF/25V
1.00k
300
7
6
5
TL074
.001
1
2
3
TL074
6.04k
2.0K
200
60.4k
1.00K
1.00K
BAV99L
10.0K
40 19
21
22
23
24
25
26
20
14
13
11
12
10
9
15
16
184139
17
29
28
31
30
4
5
3
6
42
2
27
1
43
44
35
36
32
33
34
38
37
7
8
CS4226
300
.001
20
19
18
17
16
15
14
13
12
1110
9
8
7
6
5
4
3
2
1
300
300
75
1.0uF
300
2.0
BEAD
1.0uF
16/1W
300
39pF
10uF/25V
39pF
.01 .01
.01.01
10uF/25V 300
.01 .01
LEFT INPUT
DIFFERENTIAL AMP
DIFFERENTIAL AMP
RIGHT INPUT
SHT 3
SHT 3
SHT 2
SHT 2
SHT 3
SHT 3
SHT 3
BYPASS TL074
PINS 4 AND 11
BYPASS TL074
PINS 4 AND 11
BYPASSBYPASS
TO uC
SHT 4
SHT 4
SHT 4
SHT 4
SHT 4
SHT 4
NEAR J5
SHIELD
PLACE UNDER CODEC PIN 19 PLACE UNDER CODEC PIN 40
SHIELD
NOTE: LARGE PADS FOR HEAT SINKING,D2 D3.
BYPASS 4559
PINS 8 AND 4
NOT USED
J5
SHT 2
SHT 2
BASS
TREBLE
(NOT USED)
(SHT 2)
(SHT 2)
(SHT 1)
(SHT 1)
876543 1
2345678
A
B
C
DD
C
B
A
1
SHIELD
SHIELD
NEAR U100
TO DSP1
OE1
IN
OUT
IN
OUT
IN
OUT
IN
OUT
GND
VCC
OE2
OUT
IN
OUT
IN
OUT
IN
OUT
IN
CLK1
RESET1
K1
VCC
CLK2
RESET2
J2 Q2
Q2
K2
GND
Q1
Q1
J1
-
+
1/4
-
+
1/4
-
+
1/2
-
+
1/2
-
+
1/4
-
+
1/4
-
+
1/4
-
+
1/4
-
+
1/4
OE1
IN
OUT
IN
OUT
IN
OUT
IN
OUT
GND
VCC
OE2
OUT
IN
OUT
IN
OUT
IN
OUT
IN
R
FRAMINGHAM, MA 01701-9168
TA-1 Home Theater Amplifier
Digital Signal Processor (DSP)
PCB P/N: 256431 Rev. 00
Sheet 1 of 4
Service Manual Part Number 263494 Rev. 00
2

PG 1
PG 1
PG 1
PG 1
PG 1
SPEAKER OUTPUT
DC OFFSET
PG5 C/4
DC_OFFSET
SHUTDOWN
+3.3V
+3.3V
P66
P66
P16
P16
P65
P65
CLIP
DSP-RESET
P60
P62
P62
P73
P73
INH
P64
P64
TRST
P63
P63
P15
P15
MUTE-LSRSP74
P74
P17
P17
RESET
P61
MUTE-C
MUTE-LR
OVL-ERR
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
SPDIF-IN2
UC-CLP
UC-CLP
SER-DATA-IN
SCL
SDA
P50
+5V-REG
TTY-OUT
CMOUT
P72
P72
P07
P06
P03
P04
P02
P05
P01
P00
TP229
TP240
TP270
R282
R281
R280
TP271
R268
TP250
TP265
TP329
TP238
TP236
TP235
TP234
TP233
TP232
TP231
C217
R216
TP237
Q204
R262
R261
C215
M353
U202
C208
C216
R219
C214
X600
R266
R275
R253
R217
R218
R206
D202
R226
U201
C203
C204
C205
ZR201
ZR200
R265
Q201
R270
R263
C213
M200
TP200
TP201
R255
TP202
TP205
TP203
R230
R256
R232
C209 R233
R234
C211
TP204
TP206
U200
R247
TP207
C206
R207
R208
R248
TP208
TP209
TP210
TP211
TP212
TP213
R246
R211
R260
TP214
TP215
TP216
TP217
TP218
TP219
TP220
TP221
TP222
R250
L200
TP223
TP224
R245
TP225
R244
R252
TP226
TP227
D200
R251
R249 C212
TP228
R257
R254
Q200
C207
20K
20K
10K
2k
.001
20K
MMBT30904
1K
10K
330pF
40
18
12
11
10
9
8
7
6
5
27
28
4
3
2
1
44
43
42
41
17
13
26
25
24
23
22
21
20
19
39
38
37
36
35
34
33
32
31
30
29
14
16
15
TMP87C447
1.0/25V
330pF
NV
.001
8MHz
1K
30K
5%
2K
100K
20K
2.80K
BAV99L
40.2K
8
7
6
5
4
3
2
1
24C02A
.01
10uF/25V
33pF
5.6V
5.6V
2K
MMBT30904
2K
30K
5%
330pF
2K
20K
2.0K
200K
.001 200K
300
330pF
3
2
1
MAX809x
NV
5%
33pF
10K,THERMISTOR
10K
1K
1K
301K
1K
5%
1K
10K
10K
10K
MBAV70L
NV
5%
NV
5% 330pF
300
10K
2SC3395
1.0/25V
MICROCONTROLLER
PLACE NEAR J5
SHIELD
SHIELD
LEGACY TESTPOINT
DO NOT DELETE
(SHT 4 J8-13)
(SHT 1)
(SHT 1 J9-4)
(SHT 1 J9-5)
876543 1
2345678
A
B
C
DD
C
B
A
1
CD-5 SER DATA IN
SHIELD
PLACE TOPSIDE
(SHT 1 J9-8)
(SHT 1 J9-6)
(SHT 4)
(SHT 4 J8-18)
(SHT 4 J8-15)
(SHT 4 J8-16)
BEAD
2
R
FRAMINGHAM, MA 01701-9168
TA-1 Home Theater Amplifier
Digital Signal Processor (DSP)
PCB P/N: 256431 Rev. 00
Sheet 2 of 4
Service Manual Part Number 263494 Rev. 00

WR
WR
WR
WR
ADDR31-2
ADDR22-1
ADDR23-1
ADDR24-1
ADDR25-1
ADDR26-1
ADDR27-1
ADDR28-1
DMAR1
DMAR1
ADDR27-2
BR5
BR5
BR5
TCK
TCK
TCK
EMU
EMU
EMU
DSP2-TD0
DSP2-TD0
BR4
BR4
BR4
DSP1-TCLK0
DSP1-TCLK0
DSP1-TFS0
DSP1-TFS0
ADRCLK
ADRCLK
ADRCLK
BMS
BMS
BMS
BR6
BR6
BR6
DSP2-TFS0
DSP2-TFS0
BR3
BR3
BR3
BR2
BR2
BR2
ADDR28-2
BR1
BR1
BR1
ACK
ACK
40MHZ
40MHZ
DSP2-CLKIN
DSP2-CLKIN
SW
SW
ADDR0
ADDR0
ADDR0
ADDR26-2
ADDR25-2
ADDR14
ADDR14
ADDR14
ADDR18
ADDR18
ADDR18
DSP1-TDI
DSP1-TDI
ADDR29-2
DSP1-CLKIN
DSP1-CLKIN
JTAG-CLKIN
JTAG-CLKIN
RD
RD
RD
RD
ADDR24-2
ADDR23-2
DSP2-DT0
DSP2-DT0
DSP2-TCLK0
DSP2-TCLK0
ADDR22-2
ADDR31-1
DATA31
DATA31
ADDR20
ADDR20
ADDR19
ADDR19
ADDR30-1
+3.3V
+3.3V
+3.3V +3.3V
+3.3V+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
ADDR17
ADDR17
ADDR17
ADDR16
ADDR16
ADDR16
ADDR15
ADDR15
ADDR15
DATA16
DATA16
DATA16
ADDR13
ADDR13
ADDR13
ADDR12
ADDR12
ADDR12
ADDR11
ADDR11
ADDR11
ADDR10
ADDR10
ADDR10
ADDR9
ADDR9
ADDR9
ADDR8
ADDR8
ADDR8
ADDR7
ADDR7
ADDR7
ADDR6
ADDR6
ADDR6
ADDR5
ADDR5
ADDR5
ADDR4
ADDR4
ADDR4
ADDR3
ADDR3
ADDR3
ADDR2
ADDR2
ADDR2
ADDR1
ADDR1
ADDR1
ADDR21
ADDR21
DATA30
DATA30
DSP1-DT0
DSP1-DT0
ADDR29-1
ADDR30-2
DSP1-TD0
DSP1-TD0
TMS
TMS
TMS
DATA17
DATA17
DATA17
DSP-RESET
DSP-RESET
DATA18
DATA18
DATA18
DATA20
DATA20
DATA20
TRST
TRST
TRST
DATA19
DATA19
DATA19
DATA21
DATA21
DATA21
DATA22
DATA22
DATA22
DATA23
DATA23
DATA23
DMAG1
DMAG1
DATA24
DATA24
DATA25
DATA25
DATA26
DATA26
DATA27
DATA27
DATA28
DATA28
DATA29
DATA29
GNDGND
GND
GND
GND
GND
GND
GND
GND
GND
GND
DSP2-IRQ1
DSP1-IRQ2
DSP1-DR1
DSP1-RCLK1
DSP1-RCLK1
DSP1-RFS1
DSP1-RFS1
DSP2-FLAG3
DSP2-DT1
DSP1-FLAG2
DSP1-FLAG3
DSP2-FLAG2
DSP1-FLAG1
DSP1-FLAG0
DSP2-FLAG1
DSP2-FLAG0
TP444
TP473
TP475
TP474
TP476
TP472
TP471
TP470
TP469
TP468
TP467
TP466
TP465
TP461
TP464
TP463
TP460
TP459
TP458
TP457
TP456
TP455
TP454
TP453
TP452
TP451
TP450
TP449
TP448
TP446
DSP2
R402
U401
R402
R421 R421
C410
TP447
DSP2
R412
U400
R421
C426
R402
R404 R404
C400
C414
R404R404
C404
C416
CR400
C403
C402
R406
C415
R407
R408
R411
R410
J401
R409
R418
C417 C418 C419 C420 C422C421 C423 C424 C425 C427 C428 C429
R415 R416
R417
R405
R419
R420
R425
R400
C411
R426
R425
R425
R425
R428
R428
R427
R426
R427
R427
R427
R428
R429
R429
R429
R430
R430
R430
R430
TP400
TP403
TP401
TP402
TP438
TP477
TP480
TP481
R435
TP482
TP405
TP404
TP406
TP407
TP413
TP408
TP409
TP410
TP411
TP412
TP428
TP414
TP415
TP416
TP417
TP418
TP419
TP420
TP421
TP422
TP423
TP424
TP425
TP426
TP427
TP430
TP429
TP431
TP432
TP434
TP433
TP436
TP435
TP439
TP437
TP445
DSP1
TP440
DSP1
TP441
TP442
TP443
R222
66
65
64
60
52
51
50
46
45
44
42
41
40
37
36
35
33
32
30
29
28
26
25
24
22
21
20
18
17
16
14
13
179
178
177
175
174
173
171
170
169
167
166
165
163
162
161
159
158
157
155
154
153
151
150
149
147
146
145
142
141
140
138
137
136
132
131
130
127
126
125
123
122
121
119
118
117
115
114
113
4
3
3.9K
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
1716
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
6
5
3.9K
2
1
3.9K
6
5
3.9K
33pF
236
237
238
235
232
234
79
233
229
230
231
104
105
106
107
108
109
98
102
58
89
99
94
93
92
90
91
71
100
69
101
70
85
84
83
82
81
80
77
76
75
74
73
72
68
59
57
56
55
54
204
129
7
11
10
9
8
5
240
239
6
4
2
1
510
14
13
12
11
10
9
87
6
5
4
3
2
1
4
3
3.9K
.033
2
1
3.9K
6
5
3.9K
8
7
3.9K
.033
.033
4
3
3.9K
2
1
3.9K
.033
.033
2
1
HC-49/S
40MHz
33pF
33pF
75
.033
75
75
3K
3.9K
1413
1211
109
87
65
43
21
EZ-ICE_EMULATOR
NV
510
3.9K
.033 .033 .033 .033 .033.033 .033 .033 .033 .033 .033 .033
3.9K 3.9K
3.9K
3.9K
3.9K
3.9K
87
NV
NV
33pF
43
NV
65
NV
43
NV
21
NV
65
NV
43
NV
43
NV
21
NV
87
NV
65
NV
21
NV
21
NV
65
NV
43
NV
21
NV
87
NV
65
NV
43
NV
21
NV
3.9K
236
237
238
235
232
234
79
233
229
230
231
104
105
106
107
108
109
98
102
58
89
99
94
93
92
90
91
71
100
69
101
70
85
84
83
82
81
80
77
76
75
74
73
72
68
59
57
56
55
54
204
129
7
11
10
9
8
5
240
239
6
4
2
1
66
65
64
60
52
51
50
46
45
44
42
41
40
37
36
35
33
32
30
29
28
26
25
24
22
21
20
18
17
16
14
13
179
178
177
175
174
173
171
170
169
167
166
165
163
162
161
159
158
157
155
154
153
151
150
149
147
146
145
142
141
140
138
137
136
132
131
130
127
126
125
123
122
121
119
118
117
115
114
113
10K
PART MOUNTED IN SOCKET
876543 1
2345678
A
B
C
DD
C
B
A
1
4 GATES 4 GATES
4 GATES
GND
VCC
R
FRAMINGHAM, MA 01701-9168
TA-1 Home Theater Amplifier
Digital Signal Processor (DSP)
PCB P/N: 256431 Rev. 00
Sheet 3 of 4
Service Manual Part Number 263494 Rev. 00
2

CABLE-CONT
+3.3V
+3.3V
CLIP
INH
MUTE-LSRS
MUTE-C
MUTE-LR
+17V-FUSED
+17V-FUSED
B-EQAUD
RS-EQAUD
LS-EQAUD
C-EQAUD
AMP-GND-SENSE
R-EQAUD
L-EQAUD
+12V
PROTECT
-12V
M360
TP308
J8
M361
M302
J8
J8
J8
J8
J8
J8
J8
J8
J8
J8
J8
J8
J8
J8
J8
J8
J8
M306
M316
M314
M315
M312
M311
M309
M305
M308
M303
M307
M313
M310
M301
M304
Q500
DSP2
L501
C505
DSP2
C504
R500
C501
U500
R510
DSP1
C515
C506
C500
C508
R503
C507 C509
R501
C503
R502
D500
TP507
TP500
TP501
TP502
TP503
TP504
TP505
TP508
L500
TP510
DSP1
16
1
15
14
13
12
11
10
9
2
3
4
5
6
7
8
17
18
2SC3395
228
220
212
196
195
181
180
172
164
156
148
139
135
128
120
112
110
97
95
88
78
67
61
53
48
43
34
27
19
12
221
219
205
197
188
176
168
160
152
144
143
134
133
124
116
111
103
96
87
86
63
62
49
47
39
38
31
23
15
3
22uH
470uF/25V
227
226
225
224
223
222
218
217
216
215
214
213
211
210
209
208
207
206203
202
201
200
199
198
194
193
192
191
190
189
187
186
185
184
183
182
.033
48.7K
.0012
20
19
18
17
16
15
14
13
12
1110
9
8
7
6
5
4
3
2
1
100
228
220
212
196
195
181
180
172
164
156
148
139
135
128
120
112
110
97
95
88
78
67
61
53
48
43
34
27
19
12
221
219
205
197
188
176
168
160
152
144
143
134
133
124
116
111
103
96
87
86
63
62
49
47
39
38
31
23
15
3
10uF/25V
0.47uF
470
33pF
4.99K
.0033 .0012
301K
FILM
0.22
49.9K
SOD6
90uH
227
226
225
224
223
222
218
217
216
215
214
213
211
210
209
208
207
206203
202
201
200
199
198
194
193
192
191
190
189
187
186
185
184
183
182
876543 1
2345678
A
B
C
DD
C
B
A
1
+3.3V +3.3V
+3.3V
+3.3V
GND
GND
R
FRAMINGHAM, MA 01701-9168
TA-1 Home Theater Amplifier
Digital Signal Processor (DSP)
PCB P/N: 256431 Rev. 00
Sheet 4 of 4
Service Manual Part Number 263494 Rev. 00
2