JBL SB 250 (serv.man2) Service Manual ▷ View online
SCHEMATIC DIAGRAM - EQ & IR
C813
100NF
100NF
C810
100NF
100NF
R836
5.1K
LIN
K
_
LED
+5V_STB
D811
LED
SHIED
0
2
1
3
3
CON812
SS-12F41
R829
1K
R828
100
+3.3V_STB
C821
100NF
1
3
2
4
SW810
=Value
Pair SW
RV810
R818 33
R819 33
R820 33
C817
100NF
100NF
C818
100NF
C819
100NF
C834
100NF
RV812
C833
100NF
RV811
LINK_LED
EQ_SWITCH
EQ_SWITCH
PAIR SW
USB_D-
USB_D+
+3.3V_STB
+5V_STB
EQ_SWITCH
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
CON810
CON_11POL_1.0mm
GND_D
C835
100NF
PAIR_A
LINK
EQ
MCU_D-
MCU_D+
+5V_STB
+3.3V_STB
R800
100
R801
2.2K
2.2K
C802
100NF
100NF
C803
10UF
10UF
C804
47PF
47PF
+3.3V_STB
IR_IN
OUT
1
GND
2
VCC
3
IR801
HRM138aB710FC_3P
IR_IN
+5V
MCU_D+
MCU_D-
EQ
LINK
+3.3V
PAIR
CTRL
GND
GND
GND
IR_IN
C815
100NF
C814
10NF
2
1
3
6
5
4
U811
RClamp0542T
L811
MPZ2012S331A
L810
MPZ2012S331A
R821
0
R822
0
SHELL
5
USB GND
4
USB D+
3
USB D-
2
USB PWR
1
SHELL
6
J810
USB_A
L812
MPZ2012S331A
+
C816
47UF
16V
USB POWER
GND_C
USB_D+
USB_D-
+5V_STB
NM
2014-02-15
R830
10K
10K
2014-02-15
2014-02-15
R825
10K
+3.3V_STB
2014-02-18
2014-03-17
SCHEMATIC DIAGRAM - DSP PART
1A
1
GND
2
2A
3
2Y
4
VCC
5
1Y
6
U250
74LVC2G04GW
1
3
4
2
Y250
12.288MHZ
R258
1M
1M
C268
20PF
C271
20PF
R257
1K
1K
R259
33R
C261
4.7UF
C262
1000PF
L250
BLM18BD471SN1
C272
22PF
Y1
1
GND
2
Y0
3
Z
4
VCC
5
S
6
U252
74LVCG3157GV
R279
0
C277
100NF
L252
1K @ 100MHz
R280 NM
C283
100NF
100NF
R277
10K
10K
R276 100
R278
0
R275
0
VL
5
CLOCK
1
VPLL
2
GND
3
VD
4
CLK/SCL
6
CS
7
MISO/SDA
8
MOSI
9
BUSY/HS0
10
INT/HS1
11
DBCK
13
VL
14
GND
15
DBDA
17
MCLK
18
DAO_D1
19
DAO_LRCLK
20
DAO_SCLK
21
DAI_D1
22
DAI_LRCLK
23
DAI_SCLK
24
RESET
12
VD
16
U251
CS48L11_QFN24
R267
4.7K
R268
4.7K
R270
4.7K
R272
4.7K
R273
4.7K
R315
100
C281
100NF
C282
100NF
C279
2.2uF
2.2uF
C280
100NF
R274
4.7K
C278
100NF
C275
100NF
C276
100NF
C273
2.2uF
C274
100NF
R265
4.7K
R260
33
R261
33
R262
33
R263
33
R264
33
R266
33
R269
4.7K
4.7K
R271
4.7K
C266
10PF
C265
10PF
10PF
C269
10PF
C264
10PF
10PF
C263
10PF
10PF
C270
10PF
10PF
VQ
17
FILT+
18
REF
G
ND
19
AOUTB4
-
20
AOUTB4
+
21
AOUTA4
+
22
AOUTA4
-
23
VA
24
AGND
25
AOUTB3
-
26
AOUTB3
+
27
AOUTA3
+
28
AOUTA3
-
29
AOUTB2
-
30
AOUTB2
+
31
AOUTA2
+
32
AOUTA2-
33
AOUTB1-
34
AOUTB1+
35
AOUTA1+
36
AOUTA1-
37
MUTEC
38
LPFLT
39
AGND
40
VARX
41
RXP7/GPO7
42
RXP6/GPO6
43
RXP5/GPO5
44
RXP4/GPO4
45
RXP3/GPO3
46
RXP2/GPO2
47
RXP1/GPO1
48
CX_SDIN1
1
CX_SCLK
2
CX_LRCK
3
VD
4
DGND
5
VLC
6
SCL/CCLK
7
SDA/CDOUT
8
AD1/CDIN
9
AD0/CS
10
INT
11
RST
12
AINR-
13
AINR+
14
AINL-
15
AINL+
16
RXP
0
49
TX
P
50
CX_
S
DIN2
64
VD
51
CX_
S
DIN3
63
DGND
52
CX_
S
DIN4
62
VL
S
53
SA
I_SC
LK
61
SA
I_
SD
O
U
T
54
SAI_
LRCK
60
RMCK
55
OMCK
59
CX_
S
DOUT
56
ADCIN1
58
ADCIN2
57
U253
CS42528-CQZ
R296
10K
R298
10K
R294 10K
R293 10K
R297 10K
R295
R295
10K
R301
100
R299
100
L257
BLM18BD471SN1
C305
1UF
C301
1uF
C299
22UF
22UF
C300
100NF
L256
BLM18BD471SN1
C295
NM
C293
NM
C294
NM
C298
22PF
C297
NM
NM
C284
47PF
47PF
C287
47PF
C285
47PF
R
2
86
1K
1K
R2
8
8
5
1K
C292
10NF
10NF
C288
1UF
L254
BLM18BD471SN1
C291
1UF
C289
22UF
C290
100NF
L255
BLM18BD471SN1
C303 10NF
C304
100NF
C306
100NF
C307 10NF
C308 10NF
C309 10NF
C302 10NF
C310
22UF
22UF
C312
100NF
C311
1UF
L258
BLM18BD471SN1
C313
1000PF
1000PF
R300
1.37K
R302
33
R303
0
R304
0
C314
100NF
100NF
C321
100pF
C320
10UF
10UF
+
C323
100UF
C322
1UF
R307
0
R308
0
C325
1UF
1UF
C326
10UF
10UF
C324
100NF
L259
BLM18BD471SN1
C327
22UF
22UF
C328
100NF
L260
UPZ2012E331-2R5TF
C315
22NF
L253
BLM18BD471SN1
L251
BLM18BD471SN1
AOUT_SW_(W_L+)
AOUT_SW_(W_L-)
AOUT_R+(W_R+)
AOUT_R-(W_R-)
CODEC_MUTE
+5V_CODEC
HDMI_SPDIF
SPDIF_BT
OPTICAL_IN
DCV+3.3V
DCV+3.3V
CODEC_DAI_D1
CODEC_DAI_LRCK
CODEC_DAI_SCLK
DSP_CLK
DSP_DAO_D3
DSP_DAO_D1
DCV+3.3V
DCV+3.3V
42528_INT
42528_RST
ADC_AINR-
ADC_AINR+
ADC_AINL+
ADC_AINL-
+5V_CODEC
+5V
+5V_CODEC
DSP_CLK
DSP_SPI_CLK
DSP_CS
DSP_MISO
DSP_SPI_MOSI
DSP_INT
DSP_BSY
D
SP_RESET
CODEC_DAI_SCLK
CODEC_DAI_LRCK
SW_DAI_DI
DSP_DAO_D1
DSP_DAO_D2
DSP_DAO_D3
CODEC_RMCK
DSP_CLK
MCU_I2S_CTRL
SW_DAI_DI
DCV+3.3V
CODEC_DAI_D1
MCU_DAO
DDV+3.3V
DV+1.2V
DDV+3.3V
DSP_CLK-
X10
_--48IL11_PIN1
DSP_SPI_CLK_--48IL11_PIN6
DSP_SPI_MISO--48IL11_PIN8
DSP_SPI_MOSI--48IL11_PIN9
DSP_DAO_D1&D2&D3_--48IL11_PIN19&20&21
CODEC_DAI_LRCLK--48IL11_PIN23
CODEC_DAI_SCLK_--48IL11_PIN24
42528_I2C_SDA
42528_I2C_SCL
DSP_CLK
ICT_TEST
ICT_TEST
D_MISO
DSP_SPI_MOSI
BSY
INT
DSP_RESET
DSP_SPI_CLK
DSP_CS
DSP_MISO
DSP_SPI_MOSI
DSP_INT
DSP_BSY
DSP_RESET
ICT-TEST
R281
0R
R283
0R
R309
10R
R310
0
R292
33
R305
0
L261
BLM18BD471SN1
DDV+3.3V
C286
2.2uF
2.2uF
L262
BLM18BD471SN1
DV+1.2V
C2
22PF
C1
22PF
2015-05-18
C4
22PF
C3
22PF
2015-05-18
C6
22PF
C5
22PF
C8
22PF
C7
22PF
2015-05-18
2015-06-02
2015-06-02
2015-07-28
2015-07-10
2015-07-28
2015-07-28
2015-07-28
2015-07-28
2015-07-28
2015-07-28
2015-07-30
2015-07-30
2015-07-30
2015-07-30
BOOT
1
VIN
2
EN
3
SS
4
PH
8
GND
7
COMP
6
VSNS
5
U456
TPS54231DDA
R473
NA
R474
47K
R470
332K
C490
22NF
C487
100NF
C484
10UF
L460
UPZ2012E331-2R5TF
D451
SS24T3G
L458
15UH
C477
100NF
C481
100NF
C480
33UF
+
C478
100UF
R468
384
R471
10K
R475
1.91K
R472
21K
C488
1800PF
L457
UPZ2012E331-2R5TF
1
3
2
Q452
AP2305AGN
C482
100NF
R469
120K
Q453
MMBT3904
C492
10NF
R477
NM
R476
1M
R466
22 OHM
C472
470PF
1
2
2
CON450
CON2
C455
100NF
R456
47K
R460
10K
S
1
S
2
S
3
G
4
D
5
D
6
D
7
D
8
U451
MEP4435Q8
Q451
MMBT3904
R462
NM
C457
10NF
R461
22K
C450
22UF
C451
100NF
+
C452
47UF
VIN
1
VSS
2
EN
3
NC
4
VOUT
5
U455
G9091-330T11U
C467
4.7UF
C468
4.7UF
ADJ/
GND
1
OUT
2
IN
3
OUT
4
U453
AZ1117H-1.2V-5.0TRE1
C463
100NF
C464
4.7UF
L450
BLM18BD471SN1
C465
10UF
C466
100NF
GND/
ADJ
1
VOUT
2
VIN
3
VOUT
4
U454
LM1117MPX_SOT223
C469
100NF
C459
100NF
C458
10UF
R463
560
R464
700
R465
220
+
C462
47UF
C460
100NF
C461
10UF
L451
UPZ2012E331-2R5TF
C471
100NF
C470
10UF
L454
BLM18BD471SN1
L455
BLM18BD471SN1
C475
1UF
C473
10UF
L456
BLM18BD471SN1
L459
BLM18BD471SN1
L461
BLM18BD471SN1
C476
100NF
C474
10UF
C483
47PF
C491
NM
STANDBY
PVCC
+24V
DV3.3V
+5V
+3.3V_STB
DV3.3V
DCV+3.3V
DDV+3.3V
3V3_BT
3V3_MCU
+5V
+5V_STB
+24V
L452
UPZ2012E331-2R5TF
DV+1.2V
DV3.3V
R314
1K@100MHz
R313
1K@100MHz
R312
1K@100MHz
R311
1K@100MHz
R306
1K@100MHz
R291
1K@100MHz
R289
0R
R282
0R
R250
0R
R248
0R
SGND
IC-TEST
IR_IN
SGND
NC
+3V3
PAIR_SW
LINK_LED
EQ_SW
USB_D+
USB_D-
+5V_A
AUX_IN DET
ICT_TEST
+5V_C
+5V_C
ADC_AINR-
ADC_AINR-
ADC_AINR+
ADC_AINR+
ADC_AINL+
ADC_AINL+
ADC_AINL-
ADC_AINL-
SPDIF_DET
OPTICAL_IN
OPTICAL_IN
+3V3_A
SGND
+5V
+3.3V_STB
LED_POWER_OFF
LED_POWER_ON
LED_VOL+
LED_VOL-
LED_HDMI
LED_BT
LED_OPTICAL
KEY_POWER
LED_AUX
KEY_ADC
STEREO_LED
SURROUND_LED
U2RX
SGND
+24V
U2TX
BT_DP1
BT_DN1
3V3_STB
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
20
21
22
11
12
13
14
15
16
17
18
19
20
21
22
CON206
FFC,20PIN,0.5MM Bottom Contact
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J204
FFC,14PIN,0.5MM Bottom Contact
R202
0
R205
0
R207
0
R209
0
R240
33
R241
33
R243
33
R245
33
R246
33
R249
33
R251
33
R252
33
R253
33
R254
33
R255
33
R256
33
L205
B
L
M18B
D
471SN
1
L206
BLM18BD471SN1
C200
10PF
10PF
C203
10PF
C201
10PF
10PF
C204
10PF
10PF
C254
100PF
100PF
C248
100PF
C255
100PF
C249
100PF
C256
100PF
C250
100PF
C257
100PF
C251
100PF
100PF
C258
100PF
C252
100PF
C259
100PF
100PF
C236
100NF
C237
100NF
100NF
+5V_STB
+3.3V_STB
LED_POWER_OFF
LED_POWER_ON
LED_VOL+
LED_VOL-
LED_HDMI
LED_BT
LED_OPTICAL
KEY_POWER
LED_AUX
KEY_ADC
SURROUND_LED
STEREO_LED
U2RX
U2TX
BT_DP1
BT_DN1
C247
220PF
C246
220PF
C245
220PF
C244
220PF
C243
220PF
C242
100PF
100PF
C241
NM
NM
C240
100PF
AUX_IN_DET
R247
1K@100MHz
+5V
ADC_AINR-
ADC_AINR+
ADC_AINL+
ADC_AINL-
SPDIF_DET
OPTICAL_IN
+3.3V_STB
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
11
CON201
FFC
_11PI
N
_1.0MM B
o
ttom C
o
nt
act
R201
33
R204
33
R206
33
C207
100NF
C206
100NF
100NF
C208
100NF
100NF
C335
10PF
10PF
C336
10PF
L201
BLM18BD471SN1
L200
BLM18BD471SN1
C202
100NF
100NF
C205
100NF
100NF
+5V_STB
USB_D-
USB_D+
EQ_SWITCH
LINK_LED
PAIR_SW
+3.3V_STB
2014-05-05
2014-01-10
STANDBY
+3.3V_STB
+5V_STB
R325
33
IR_IN
L263
1K @ 100MHz
L264 1K @ 100MHz
USB_D-_B
USB_D+_B
C1
2
2
0.1uF
C1
3
3
0.1uF
C1
4
4
0.1uF
R317
1K@100MHz
2015-06-23
OPTIC_ST-BY
2015-06-23
OPTIC_ST-BY_B
R318
1000PF
2015-07-28
2015-07-28
2015-07-28
aux
main
2015-07-28
2015-07-28
2015-07-28
2015-07-29
SCHEMATIC DIAGRAM - DC-DC PART
SCHEMATIC DIAGRAM - AUX AUDIO
R
5
4
3
4
3
L
2
1
1
J351A
PHONEJACK_LF317
RV350
ESDA0402/
0
5
RV351
ESDA0402/
05
L354
1K8 @ 100MHz
L351
1K8 @ 100MHz
C358
1000PF
1000PF
C359
1000PF
1000PF
R363
47K
47K
R364
47K
47K
R361
82K
R362
82K
B
2
C
1
E
3
Q352
2SC2712
Q351
2SC2712
C353
100NF
C352
.1uF
.1uF
R359
1M
1M
R357
4.7M
4.7M
R358
10K
R354
200K
200K
R353
0
0
L350
1K @ 100MHz
3V3_STB
AUX_IN_DET
AUX_R
AUX_L
R350
240K
L356
1K @ 100MHz
+
C361
47UF
+
C362
47UF
+
5
-
6
7
U350B
NJM4580M
+
3
-
2
1
4
8
U350A
NJM4580M
C364
470PF
C366
470PF
C368
100NF
+
C365
10UF
+
C371
47UF
R365
634
R366
634
R371
634
R367
91
R372
10
C363
10UF
10UF
C369
10UF
C367
2700PF
2700PF
R369
100K
100K
R374
3.3K
3.3K
R373
2.7K
C370
100NF
100NF
R370
10K
10K
R368
10.5K
+
5
-
6
7
U351B
NJM4580M
+
3
-
2
1
4
8
U351A
NJM4580M
C381
470PF
C383
470PF
C385
100NF
+
C382
10UF
R375
634
R376
634
R381
634
R377
91
R382
10
C380
10UF
10UF
C386
10UF
C384
2700PF
2700PF
R379
100K
100K
R380
10K
10K
R378
10.5K
+5V
+5V_A
ADC_AINL+
ADC_AINL-
ADC_AINR+
ADC_AINR-
AUX_R
AUX_L
+5V_A
+5V_A
+5V_A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
3
4
5
6
7
8
9
10
11
12
13
14
J352
1014A0-014P
C378
100PF
100PF
C379
10PF
10PF
C376
100PF
100PF
C377
100PF
100PF
C374
100PF
C375
100PF
100PF
C372
100PF
100PF
C373
10PF
10PF
OPTICAL_IN
SPDIF_IN_DET
ADC_AINL-
ADC_AINL+
ADC_AINR+
ADC_AINR-
AUX_IN_DET
+5V
3V3_STB
GND
1
+5V
2
OPTI
3
J350
DTL1160
DTL1160
R360
33
C354
10PF
10PF
C357
100NF
100NF
C355
4.7UF
+
C356
47UF
OPTICAL_IN
+3.3V_OPT
L352
1K @ 100MHz
L355
600R/100MHz
AGND
L357
0R
AGND1
C390
100PF
C391
100PF
100PF
R385
100K
100K
Q354
S8050
R383
10K
R384
10k
10k
1/6W +/-5%
2
1
3
Q353
P5102
R386
NC
1/6W +/-5%
Q350
2SC2712
C351
100NF
100NF
R352
47K
R356
100K
R351
47
47
C350
100NF
100NF
OPTICAL_IN
SPDIF_IN_DET
3V3_STB
R355
4.7K
1/6W +/-5%
3V3_STB
OPTIC_ST-BY_B
R387
0.1UF
OPTIC_ST-BY_B
2015-07-10
2015-07-10
2015-07-28
2015-07-10
2015-07-10
2015-06-23
2015-07-10
2015-07-10
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