Read JBL SB 250 (serv.man3) Service Manual online
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
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