Harman Kardon SB 26 Service Manual ▷ View online
SB26 Soundbar block diagram
g
L W
f
30W
2xHDMI IN
Avnera
Module
AVMD6301
Sub I2S
ARC IN
I2Sx4
HDMI
Repeater
SiI9523
L Woofer 30W
BT
MCU_I2C
AVMD6301
HDMI OUT
Down mix
I2S*1
8
ȍ
Woofer
8
ȍ
SiI9523
16Mb Flash
BT
BM153
L Channel
(SPDIF IN)
MCU_UART
Woofer
4
ȍ
Tweeter
TPA3116
AUX_IN
OP
ARC IN
OMCK
CS42528
8
ȍ
L Tweeter 30W
C
LK
I2Sx4
I2Sx1
R Woofer 30W
Optical_IN
RMCK
MUX
L F
8
ȍ
Woofer
8
ȍ
Woofer
H M
C
I2Sx4
I2C
Auto On DET
DSP
CS497014
X’tal
MUX
MCLK
A
T
O
Auto Turn On
4
ȍ
Tweeter
R Channel
4MB
Fl
h
R Tweeter 30W
TPA3116
P
I_3
SPI_2
SPI
Auto Turn On
Flash
USB
ҙछ
㑻⫼
㑻⫼
MCU
STM32F205V
MUX
SPI_1
S
P
Upgrade
CP2.0C
I2C_2
MCU_UART
IR &IR
repeater
MCU_I2C
LDO
LDO
+3.3V
㑻⫼
2K bit
EEPROM
STM32F205V
E
I2C_1
+1.8V 500mA
D
FRONT PANEL
Key*5
Ͼ 㡆
Ͼ㪱㡆
repeater
Power
Adaptor
+24V 2.7A
MOS
LDO
+3.3V_STB
+5V
DC-DC
+5V_STB
+5V_STB
AD
LE
D
Standby power 0.5w
MOS
2Ͼঠ㡆LEDˇ1Ͼ㪱㡆LED
+24V AMP
6-1
6-1
Harman Kardon
SB 26 Service Manual
Page 14 of 44
SB26 SUBWOOFER block diagram
Sub I2S
P i i
100W*1
TAS5612LA
Avnera
Module
AVMD6210
TAS5538
Pairing
4
ȍ
LED
t
Crossover
Phase
MCU
I2C
mute
SD
OTW
mute
Standby
OTW
+12V
+
5V
DC-DC
MOS
A5V
A12V
MOS
L
POWER SUPPLY
Standby power 0.5w
+
33V/4A
AGND
MOS
A_33V
POWER SUPPLY
6-2
6-2
Harman Kardon
SB 26 Service Manual
Page 15 of 44
A
A
B
B
C
C
D
D
E
E
1
1
2
2
3
3
4
4
USB
Close to DC-DC
1.02A
No Through Hole !
100 ohm - Impedance
HDMI Port
Differential Signal !
Standby
OPT_RX
OPT_RX
IR_Repeat
AUX_R_IN
AUX_L_IN
USB_DP
USB_DN
F_TX2-
HDMI_SDA
HDMI_SCL
TX_CEC
F_TX0+
F_TX0-
ARC_IN_N
HDMI_SCL
F_TX2+
TX_CEC
HDMI_SDA
F_TXC+
F_TXC-
TX_CEC
HDMI_VCC
LINK_LED
LINK_LED
PAIR_SW
PHASE_SW
IR_Repeat
PHASE_SW
Standby
F_TX1-
F_TX1+
PAIR_SW
USB_DN
USB_DP
USB_DP
OPT_RX
IR_Repeat
IR_Repeat
Repeater5V
Repeater3.3V
AVCC
VCC_AMP
+5V_STB
+5V_USB
VSYS
VSYS
+5V_USB
Repeater5V
Repeater1.3V
Repeater5V
HDMI_VCC
Repeater5V
+5V_STB
Repeater5V
HDMI_VCC
Repeater5V
+5V_STB
+3.3V_STB
+3.3V_STB
Repeater3.3V
VSYS
VCC_AMP
+3.3V_STB
Standby
AUX_R_IN
AUX_L_IN
AUX_IN_R-
AUX_IN_L+
AUX_IN_R+
AUX_IN_L-
OPT_RX
IR_Repeat
DDC_SCL_RX0
DDC_SDA_RX0
TX_CEC
T0X2-
8
T0X2+
8
T0X1+
8
T0X1-
8
TX0_HPD
8
T0XC-
8
T0X0-
8
T0X0+
8
ARC_IN_N
ARC_IN
T0XC+
8
LINK_LED
PAIR_SW
MODE_SW
R
304
4.
7K
R
304
4.
7K
C5
5
100pF/
50V/
NP0
C5
5
100pF/
50V/
NP0
C
364
0.
1uF/
16V/
Y5V
C
364
0.
1uF/
16V/
Y5V
ESD21
LVSL10180Z020/18V/2pF
ESD21
LVSL10180Z020/18V/2pF
2
1
C7
9
0.
1uF/
25V/
Y5V
C7
9
0.
1uF/
25V/
Y5V
FB24
300/3A
FB24
300/3A
R4
5.1K/1%
5.1K/1%
R4
5.1K/1%
5.1K/1%
C88
0.1uF/16V/X7R
C88
0.1uF/16V/X7R
R113
0
R113
0
C148
22uF/
6.
3V/
Y5V
C148
22uF/
6.
3V/
Y5V
R1003
1K
R1003
1K
C81
10pF/50V/NP0
C81
10pF/50V/NP0
C927
1uF/25V/Y5V
C927
1uF/25V/Y5V
R300
22K/1%
R300
22K/1%
R310
4.7K
4.7K
R310
4.7K
4.7K
R299
10
R299
10
C86
NC/27pF
C86
NC/27pF
C197 10uF/10V/Y5V
C197 10uF/10V/Y5V
R10
680
R10
680
U15
AS2910
U15
AS2910
VIN
1
GND
2
EN
3
ADJ
4
VOUT
5
C3
4
100pF/
50V/
NP0
C3
4
100pF/
50V/
NP0
R7
100
R7
100
C25
100pF/50V/NP0
C25
100pF/50V/NP0
C89
1000pF/50V/X7R
C89
1000pF/50V/X7R
R109
600/500mA
R109
600/500mA
ZD2
LL4148
LL4148
ZD2
LL4148
LL4148
C147 0.1uF/16V/Y5V
C147 0.1uF/16V/Y5V
FB21
300/3A
FB21
300/3A
R104
10
R104
10
R1
15K/1%
15K/1%
R1
15K/1%
15K/1%
P5
5PIN/CKX-3.5-30
P5
5PIN/CKX-3.5-30
1
1
2
2
3
3
4
4
5
5
C1
4
100pF/
50V/
NP0
C1
4
100pF/
50V/
NP0
Q13
NPN_3DG3904M
NPN_3DG3904M
Q13
NPN_3DG3904M
NPN_3DG3904M
+
CE7
100uF/16V
+
CE7
100uF/16V
L5
NC/ACM2012H-900-2P
L5
NC/ACM2012H-900-2P
1
3
2
4
5
6
7
8
C82
10uF/10V/Y5V
C82
10uF/10V/Y5V
U6
AS431
U6
AS431
3
1
2
C84
3300pF/50V/X7R
C84
3300pF/50V/X7R
R
305
2.
7K
R
305
2.
7K
R905
680
R905
680
R303
12K
12K
R303
12K
12K
R2
100K
100K
R2
100K
100K
C8
1000pF/50V/X7R
C8
1000pF/50V/X7R
C11
100pF/50V/NP0
C11
100pF/50V/NP0
C2
0.1uF/50V/X7R
C2
0.1uF/50V/X7R
C13
100pF/50V/NP0
C13
100pF/50V/NP0
R116
47K
47K
R116
47K
47K
Q1
PNP_3CG9012M
Q1
PNP_3CG9012M
R311
22K/1%
22K/1%
R311
22K/1%
22K/1%
C6
3
100pF/
50V/
NP0
C6
3
100pF/
50V/
NP0
ESD20
LVSL10180Z020/18V/2pF
LVSL10180Z020/18V/2pF
ESD20
LVSL10180Z020/18V/2pF
LVSL10180Z020/18V/2pF
2
1
Q14
P_AP2305
Q14
P_AP2305
G
D
S
FB22
300/3A
FB22
300/3A
U5
DQR-012
U5
DQR-012
OPTI
3
+5V
1
GND
2
C87
0.1uF/16V/Y5V
C87
0.1uF/16V/Y5V
C265
0.1uF/25V/Y5V
C265
0.1uF/25V/Y5V
ESD16
PESD5V0S1BA/
30K/
35pF
ESD16
PESD5V0S1BA/
30K/
35pF
2
1
ESD15
PESD5V0S1BA/
30K/
35pF
ESD15
PESD5V0S1BA/
30K/
35pF
2
1
C4
1
100pF/
50V/
NP0
C4
1
100pF/
50V/
NP0
FB19
600/200mA
FB19
600/200mA
U23
AT1526
U23
AT1526
VCC
1
REF
2
GND
3
FB
4
EN
5
PGND
6
LX
7
VIN
8
TP
9
C264
0.1uF/25V/Y5V
C264
0.1uF/25V/Y5V
C85
3300pF/50V/X7R
C85
3300pF/50V/X7R
XP2
12PIN/2.0mm
12PIN/2.0mm
XP2
12PIN/2.0mm
12PIN/2.0mm
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
L6
NC/ACM2012H-900-2P
L6
NC/ACM2012H-900-2P
1
3
2
4
5
6
7
8
ESD18
LVSL10180Z020/18V/2pF
ESD18
LVSL10180Z020/18V/2pF
2
1
Q52
NPN_3DG3904M
NPN_3DG3904M
Q52
NPN_3DG3904M
NPN_3DG3904M
C198
0.1uF/16V/Y5V
C198
0.1uF/16V/Y5V
XP5
7PIN/2.0mm
XP5
7PIN/2.0mm
1
1
2
2
3
3
4
4
5
5
6
6
7
7
C8
0
0.
1uF/
25V/
Y5V
C8
0
0.
1uF/
25V/
Y5V
TVS Arrays
D3
NC/PESD_TPD4S010B
TVS Arrays
D3
NC/PESD_TPD4S010B
1
1
2
2
GND
3
4
4
5
5
6
6
7
7
GND
8
9
9
10
10
J4
ESTD-008
J4
ESTD-008
1
2
3
ESD19
LVSL10180Z020/18V/2pF
LVSL10180Z020/18V/2pF
ESD19
LVSL10180Z020/18V/2pF
LVSL10180Z020/18V/2pF
2
1
+
100uF/16V
CE2
+
100uF/16V
CE2
TVS Arrays
D7
NC/PESD_TPD4S010B
TVS Arrays
D7
NC/PESD_TPD4S010B
1
1
2
2
GND
3
4
4
5
5
6
6
7
7
GND
8
9
9
10
10
R309
1K
1K
R309
1K
1K
FB23
300/3A
FB23
300/3A
R3
47K/1%
47K/1%
R3
47K/1%
47K/1%
R301
10K
10K
R301
10K
10K
SW12
SW05P
SW05P
SW12
SW05P
SW05P
1
2
3
5
4
C394
0.1uF/16V/Y5V
C394
0.1uF/16V/Y5V
C9
1000pF/50V/X7R
C9
1000pF/50V/X7R
R118
1.8K
1.8K
R118
1.8K
1.8K
FB20
600/200mA
FB20
600/200mA
C
928
22uF/
6.
3V/
Y5V
C
928
22uF/
6.
3V/
Y5V
R307
22K/1%
22K/1%
R307
22K/1%
22K/1%
LED27
LED_BULE
LED27
LED_BULE
R6
5.1K/1%
5.1K/1%
R6
5.1K/1%
5.1K/1%
R120
0
R120
0
R298
33K/1%
R298
33K/1%
C10
0.1uF/50V/X7R
C10
0.1uF/50V/X7R
C12
100pF/50V/NP0
C12
100pF/50V/NP0
R308
10K
R308
10K
ESD17
LVSL10180Z020/18V/2pF
ESD17
LVSL10180Z020/18V/2pF
2
1
F4
SMD0805-035
F4
SMD0805-035
FB9
600/500mA
FB9
600/500mA
L17
2.2uH/3A
L17
2.2uH/3A
C179
0.1uF/16V/Y5V
C179
0.1uF/16V/Y5V
R
306
100K
R
306
100K
R119
1.8K
1.8K
R119
1.8K
1.8K
P6
HDMI JACK
HDMI JACK
P6
HDMI JACK
HDMI JACK
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
11
12
13
14
15
16
17
18
19
22
21
20
23
C3
22uF/
6.
3V/
Y5V
C3
22uF/
6.
3V/
Y5V
R92
470
R92
470
ESD22
LVSL10180Z020/18V/2pF
ESD22
LVSL10180Z020/18V/2pF
2
1
C83
0.1uF/25V/Y5V
C83
0.1uF/25V/Y5V
C4
0
100pF/
50V/
NP0
C4
0
100pF/
50V/
NP0
P7
P7
1
1
2
2
3
3
R90
4.7K
4.7K
R90
4.7K
4.7K
C90
0.1uF/16V/Y5V
C90
0.1uF/16V/Y5V
SW1
TAC020
SW1
TAC020
C
365
0.
1uF/
16V/
Y5V
C
365
0.
1uF/
16V/
Y5V
U11
LD1117STR
U11
LD1117STR
input
3
Vout
4
ADJ/GND
1
output
2
J3
USB-A/WT
J3
USB-A/WT
VCC
1
D-
2
D+
3
GND
4
Shell B
6
Shell A
5
7-1
7-1
HDMI Board Circuit Diagram for Soundbar:POWER & INPUT
Harman Kardon
SB 26 Service Manual
Page 16 of 44
A
A
B
B
C
C
D
D
E
E
1
1
2
2
3
3
4
4
Audio DET
Aux in
OP Circuit
AUX_R_IN
AUX_L_IN
AUX_R_IN
AUX_R
AUX_L
AUX_L_IN
L_PRE_OUT
L_PRE_OUT
AUX_L
R_PRE_OUT
R_PRE_OUT
AUX_R
+3.3V_STB
+3.3V_STB
+3.3V_STB
AVDD
AVCC
AVCC
AVDD1
AVDD1
AVDD
AUDIO_SENSE
AUX_L_IN
AUX_R_IN
AUX_IN_L-
AUX_IN_L+
AUX_IN_R-
AUX_IN_R+
C75
1uF/10V/Y5V
C75
1uF/10V/Y5V
R275
4.7K
R275
4.7K
R100
12K
12K
R100
12K
12K
C306
10uF/10V/Y5V
C306
10uF/10V/Y5V
R279
22K/1%
R279
22K/1%
C76
NC/3300pF/50V/X7R
NC/3300pF/50V/X7R
C76
NC/3300pF/50V/X7R
NC/3300pF/50V/X7R
+
-
U7A
NJM4565M
+
-
U7A
NJM4565M
3
2
1
8
4
R98
1M
1M
R98
1M
1M
R284
10K/1%
R284
10K/1%
R890
47
R890
47
C251
1uF/16V/Y5V
C251
1uF/16V/Y5V
R287
7.5K
R287
7.5K
R277
22K/1%
R277
22K/1%
C73
1uF/10V/Y5V
C73
1uF/10V/Y5V
R896
2K
R896
2K
Q7
NPN_3DG3904M
NPN_3DG3904M
Q7
NPN_3DG3904M
NPN_3DG3904M
C103 100pF/50V/NP0
C103 100pF/50V/NP0
R5
NC/4.7M
R5
NC/4.7M
C274
10uF/10V/Y5V
C274
10uF/10V/Y5V
C6
0
1000pF/
50V/
X7R
C6
0
1000pF/
50V/
X7R
R99
2.2M
2.2M
R99
2.2M
2.2M
+
-
U8A
NJM4565M
+
-
U8A
NJM4565M
3
2
1
8
4
C260
2200pF/50V/X7R
C260
2200pF/50V/X7R
C259
2200pF/50V/X7R
C259
2200pF/50V/X7R
R285
10K/1%
R285
10K/1%
R891
47
R891
47
C250
1uF/16V/Y5V
C250
1uF/16V/Y5V
C255
0.1uF/25V/Y5V
C255
0.1uF/25V/Y5V
R66
150K
R66
150K
Q5
2SC2712
2SC2712
Q5
2SC2712
2SC2712
C102 100pF/50V/NP0
C102 100pF/50V/NP0
R283
22K/1%
R283
22K/1%
C308
10uF/10V/Y5V
C308
10uF/10V/Y5V
Q6
2SC2712
2SC2712
Q6
2SC2712
2SC2712
R280
22K/1%
R280
22K/1%
R276
22K/1%
R276
22K/1%
C309
10uF/10V/Y5V
C309
10uF/10V/Y5V
R41
4.7K
R41
4.7K
C74
1uF/10V/Y5V
C74
1uF/10V/Y5V
R281
22K/1%
R281
22K/1%
C303
10uF/10V/Y5V
C303
10uF/10V/Y5V
+
-
U8B
NJM4565M
+
-
U8B
NJM4565M
5
6
7
8
4
R102
12K
12K
R102
12K
12K
R271
4.7K
R271
4.7K
C257
0.1uF/25V/Y5V
C257
0.1uF/25V/Y5V
R103
27K
27K
R103
27K
27K
C307
10uF/10V/Y5V
C307
10uF/10V/Y5V
R895
2K
R895
2K
R82
4.7K
R82
4.7K
R46
2.2M
2.2M
R46
2.2M
2.2M
R286
7.5K
R286
7.5K
C310
10uF/10V/Y5V
C310
10uF/10V/Y5V
R897
2K
R897
2K
C258
100pF/50V/NP0
C258
100pF/50V/NP0
C273
10uF/10V/Y5V
C273
10uF/10V/Y5V
C6
1
1000pF/
50V/
X7R
C6
1
1000pF/
50V/
X7R
R898
2K
R898
2K
D6
BAT54C
D6
BAT54C
1
3
2
R282
22K/1%
R282
22K/1%
R278
22K/1%
R278
22K/1%
C302
10uF/10V/Y5V
C302
10uF/10V/Y5V
C256
100pF/50V/NP0
C256
100pF/50V/NP0
+
-
U7B
NJM4565M
+
-
U7B
NJM4565M
5
6
7
8
4
C305
10uF/10V/Y5V
C305
10uF/10V/Y5V
R65
33
R65
33
7-2
7-2
HDMI Board Circuit Diagram for Soundbar:AUDIO IN
Harman Kardon
SB 26 Service Manual
Page 17 of 44
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