JBL SB 250 (serv.man2) Service Manual ▷ View online
MAIN UNIT BLOCK DIAGRAM
Woofer
6 ohm
Tweeter
8 ohm
Woofer
6 ohm
Tweeter
8 ohm
USB
OPTI
AUX
BT
BM153
CS42528
PIC32MX450F256L
MCU
FRONT PANEL(KEY/LED)
OP
NJM4580
NJM4580
Auto On
DET
XTAL
CS48L11
DSP(Dobly digital)
SW
FLASH
XTAL
EEPROM
16Kbit
8MB
IR
LDO
+1.2V
+3.3V
+5V
+5V
+3.3V
DC/DC
+5V
LDO
+5V
SW
LDO
+3.3V
SW
SMPS 19V/3A
Upgrade
TPA3118
G9091-330T11U
MEP4435Q8
AP2305AGN
AZ1117H-1.2VTRE1
LM1117MPX
TPS54231
12.288MHz
4MHz
24C16
I2S
SUBWOOFER BLOCK DIAGRAM
Woofer
2 ohm
BT
BM153
FRONT PANEL(KEY/LED)
+3.3V
SW
SMPS 19V/3A
TPA3116
MEP4435Q8
DC/DC
TPS54231
SCHEMATIC DIAGRAM - MCU PART
RG15
1
VDD
2
AN22/RPE5/PMD5/RE5
3
AN23/PMD6/RE6
4
AN27/PMD7/RE7
5
RPC1/RC1
6
RPC2/RC2
7
RPC3/RC3
8
RPC4/CTED7/RC4
9
AN16/C1IND/RPG6/SCK2/PMA5/RG6
10
AN17/C1INC/RPG7/PMA4/RG7
11
AN18/C2IND/RPG8/PMA3/RG8
12
MCLR
13
AN19/C2INC/RPG9/PMA2/RG9
14
VSS
15
VDD
16
TMS/CTED1/RA0
17
RPE8/RE8
18
RPE9/RE9
19
AN5/C1INA/RPB5/RB5
20
AN4/C1INB/RB4
21
PGED3/AN3/C2INA/RPB3/RB3
22
PGEC3/AN2/C2INB/RPB2/CTED13/RB2
23
PGEC1/AN1/RPB1/CTED12/RB1
24
PGED1/AN0/RPB0/RB0
25
PGEC2/AN6/RPB6/RB6
26
PGED2/AN7/RPB7/TED3/RB7
27
VREF-/CVREF-/PMA7/RA9
28
VREF+/CVREF+/PMA6/RA10
29
AVDD
30
AVSS
31
AN8/RPB8/CTED10/RB8
32
AN9/RPB9/CTED4/RB9
33
CVREFOUT/AN10/CTED11PMA13/RB10
34
AN11/PMA12/RB11
35
VSS
36
VDD
37
TCK/CTED2/RA1
38
RPF13/RF13
39
RPF12/RF12
40
AN12/PMA11/RB12
41
AN13/PMA10/RB13
42
AN14/RPB14/CTED5/PMA1/RB14
43
AN15/RPB15/OCFB/CTED6/PMA0/RB15
44
VSS
45
VDD
46
RPD14/RD14
47
RPD15/RD15
48
RPF4/PMA9/RF4
49
RPF5/PMA8/RF5
50
RPF3/RF3
51
RPF2/RF2
52
RPF8/RF8
53
RPF8/R
54
RPF/SCK1/INT/RF
55
SDA/RG3
56
SCL/RG2
57
SCL2/RA2
58
SDA2/RA3
59
TDI/CTED/RA4
60
TDO/RA5
61
VDD
62
OSC1/CLKI/RC12
63
OSC2/CLKO/RC15
64
VSS
65
RPA14/RA14
66
RPA15/RA15
67
RPD8/RTCC/RD8
68
RPD9/RD9
69
RPD10/PMCS2/RD10
70
RPD11/PMCS1/RD11
71
RPD0/RD0
72
SOSCI/RPC13/RC13
73
SOSCO/RPC14/T1CK/RC14
74
VSS
75
AN24/RPD1/RD1
76
AN25/RPD2/RD2
77
AN26/RPD3/RD3
78
RPD12/PMD12/RD12
79
PMD13/RD13
80
RPD4/PMWR/RD4
81
RPD5/PMRD/RD5
82
PMD14/RD6
83
PMD15/RD7
84
VCAP
85
VDD
86
RPF0/PMD11/RF0
87
RPF1/PMD10/RF1
88
RPG1/PMD9/RG1
89
RPG0/PMD8/RG0
90
TRCLK/RA6
91
TRD3/CTED8/RA7
92
PMD0/RE0
93
PMD1/RE1
94
TRD2/RG14
95
TRD1/RG12
96
TRD0/RG13
97
AN20/PMD2/RE2
98
RPE3/CTPLS/PMD3/RE3
99
AN21/PMD4/RE4
100
U102
PIC32MX450F512L
C149
20PF
C148
100NF
C142
100NF
C141
10PF
C146
10PF
R124
33
R127
33
R165
33
R148
100
R146
100
R144
100
R141
100
R138
33
R135
100
R155
33
R128
33
R189
33
R150
33
R147
10K
R119
100
R113
100
C134
10NF
C133
100NF
C132
1UF
C127
10NF
C126
100NF
C125
1UF
C123
10NF
C122
100NF
C121
1UF
C117
10NF
C116
100NF
C115
1UF
R153
10
L103
1K @ 100MHz
C114
NM
C113
100NF
R112
470
R116
10K
R101
100K
R326
10K
C109
10NF
C108
100NF
C107
1UF
R103
NM
R105
10K
R102
10K
R104
NM
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
WP
7
VCC
8
U101
M24C16MNB
C101
10UF
C104
100NF
L100
BLM18BD471SN1
R195
10K
R191
10K
R130
33
R139
100
R154
33
R196
33
R160
33
R162
33
R158
33
R163
10K
R161
10K
R117
100
R136
10K
R140
10K
R145
100
C120
1UF
C119
100NF
C118
10UF
C131
1UF
C130
100NF
C129
10NF
Y100
4.000MHz
C124
22PF
C128
22PF
R164
499K
SPDIF_DET
R290
33
AUX_IN_DET
R288 33
CODEC_DAI_SCLK_C
R287
0R
C102
20PF
R284
0R
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SCK
6
HOLD
7
VCC
8
U103
S25FL208K0RMFI011
R106
10K
R1
0
0
7
NM
DSP_INT_B
R1
0
0
9
10K
DSP_BSY_B
R1
0
0
8
10K
R142
0R
R137
0R
R110
10K
R111
10K
SGND
MCU_RST
3V3_MCU
L102
BLM18BD471SN1
CLK_Debug
DATA_Debug
1
2
3
4
5
CON100
B 5B-ZR
R183
0
R184
0R
1
D
I
_
T
C
U
D
O
R
P
0
D
I
_
T
C
U
D
O
R
P
T
E
D
_
R
E
W
O
P
3V3_MCU
3V3_MCU
3V3_MCU
DDV+3.3V
+24V
C112
10UF
C110
10NF
MCU_FLASH_CLK
MCU_FLASH_MOSI
MCU_FLASH_CS
MCU_FLASH_MISO
42528_I2C_SDA
AMP_MUTE
EEP_SDA
POWER_DET
42528_I2C_SCL
SURROUND_LED
EEP_SCL
RESET_BT
EEP_SCL
EEP_SDA
DDV+3.3V
3V3_MCU
3V3_MCU
3V3_MCU
3V3_MCU
3V3_MCU
3V3_MCU
C136
1UF
C135
100NF
C137
100NF
3V3_MCU
DSP_RESET
UART_RX_BT
U2TX
CODEC_DAI_SCLK
MCU_DAO
MCU_RST
CODEC_DAI_LRCK
MCU_FLASH_CS
MCU_FLASH_MOSI
MCU_FLASH_MISO
LED_VOL-
LED_HDMI
LED_BT
LED_OPTICAL
3V3_MCU
3V3_MCU
KEY_POWER
LED_AUX
KEY_ADC
UART_TX_BT
STEREO_LED
DATA_DEBUG
F_3.3V
CLK_DEBUG
DSP_SPI_MOSI
IR_IN
UART_TX_BT
3V3_MCU
IR_IN
U2RX
DDV+3.3V
R132
10K
3V3_MCU
TX_MUTE
AUX_IN_DET_B
DSP_CS
DSP_BSY
DSP_INT
STANDBY
MCU_I2S_CTRL
42528_INT
SPDIF_DET_B
PRODUCT_ID0
PRODUCT_ID1
MCU_FLASH_CLK
42528_I2C_SDA
42528_I2C_SCL
3V3_MCU
EQ_SWITCH
LED_POWER_OFF
LED_POWER_ON
LED_VOL+
DDV+3.3V
3V3_MCU
C111
100NF
R177
0
3V3_MCU
CLK_Debug
DATA_Debug
3V3_MCU
MCU_RST
USB_D+
USB_D-
R330
160
DSP_SPI_CLK
R126
33
DSP_MISO
R1
1K
2015-05-18
C11
47PF
C10
47PF
2015-05-18
C15
47PF
C9
47PF
2015-05-18
42528_RST
R2
150K
2015-05-29
2015-06-15
2015-06-15
OPTIC_ST-BY_A
2015-06-23
R316
0
OPTIC_ST-BY
2015-06-23
R166
100K
SCHEMATIC DIAGRAM - KEY & LED
SURROUND_LED
C400
100NF
C401
100NF
STEREO_LED
LED_POWER_ON
LED_POWER_OFF
KEY_POWER
KEY_ADC
R409
33
R408
33
R407
33
R406
33
R428
4.7K
R430
4.7K
R425
10K
R435
1K
R433
1K
R423
4.7k
+5V_STB
+5V_STB
LED_POWER_OFF
LED_POWER_ON
SURROUND_LED
STEREO_LED
R448
4.7K
R450
1K
R446
4.7K
LED_BT
+5V_STB
KEY_POWER
+3.3V_STB
1
2
SW403
SURROUND
1
2
SW404
VOL+
1
2
SW405
POWER
POWER
VOL+
SURROUND
R419
10.0K
1%
R421
4.7K
1%
R420
7.5K
1%
KEY_ADC
+3.3V_STB
1
2
SW400
BT
1
2
SW401
VOL-
1
2
SW402
SOURCE
SOURCE
VOL-
R400
10.0K
1%
R402
0R
1%
R401
7.5K
1%
R429
4.7K
R431
22K
R426
4.7K
R436
1K
R
4
34
1K
R424
4.7K
+5V_STB
+5V_STB
LED_AUX
LED_OPTICAL
R449
4.7K
R451
1K
R447
4.7K
LED_VOL+
+5V_STB
R441
4.7K
R445
1K
R439
4.7K
LED_VOL-
+5V_STB
R427
4.7K
R432
1K
R422
4.7K
LED_HDMI
+5V_STB
R440
22K
22K
R442
22K
22K
R438
4.7K
R444
1K
R443
1K
1K
R437
4.7K
+5V_STB
+5V_STB
R413
33
R412
33
R411
33
R410
33
R414
33
+5V_STB
+3.3V_STB
LED_BT
LED_AUX
LED_OPTICAL
LED_HDMI
LED_VOL+
LED_VOL-
2
3
1
Q403
S8550
2
3
1
Q401
S8550
1
3
2
Q406
S8050
1
3
2
Q405
S8050
2
3
1
Q408
S8550
2
3
1
Q409
S8550
2
3
1
Q400
S8550
2
3
1
Q407
S8550
1
3
2
Q404
S8050
2
3
1
Q402
S8550
C409
100PF
C410
100PF
C407
100PF
C408
100PF
C406
100PF
C405
100PF
C404
100PF
C403
100PF
C402
100PF
C411
100PF
C412
100PF
C413
100PF
R405
33
R404
33
R403
33
D404
BLUE
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
CON400
FFC,20PIN,0.5MM
R417
0
R416
0
R415
0
R418
0
U2RX
U2TX
BT_DP1
BT_DN1
+3.3V_STB
U2RX
U2TX
1
2
3
2
3
J400
03P-SJN
BT_DP1
BT_DN1
1
2
3
4
2
3
4
J401
04P-SJN
C414
100PF
C415
100PF
C416
100PF
C417
100PF
+5V
+3V
POW
P_N
VOL+
VOL-
HDMI
BT
OPTICAL
K_P
AUX
ADC
SUR
STER
U2RX
U2TX
B_P
BT_DN
G
D400B
WHITE
WHITE
D400A
ORANGE
D402B
ORANGE
D402A
White
D403
WHITE
WHITE
D405
WHITE
WHITE
D401C
ORANGE
ORANGE
D401B
Green
Green
D401A
NC
NC
RV410
RV411
C418
100PF
C419
100PF
2014-02-18
2014-02-18
2015-05-08
2014-02-18
2014-02-19
2014-02-19
2014-03-17
2014-03-17
R452
4.7K
1%
2015-05-08
2015-05-08
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