JBL Charge 4, Руководство по обслуживанию

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1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
Title
Number Revision Size
A3
Date: 2018/8/16 Sheet of
File: E:\
项目
\..\Charge4_MAIN_2_AMP_V5_1.SchDoc Drawn By:
PCM5121
CPVDD
1
CAPP
2
CPGND
3
CAPM
4
VNEG
5
OUTL
6
OUTR
7
AVDD
8
AGND
9
VCOM/DEMP
10
SDA/MOSI/ATT2
11
SCL/MC/ATT1
12
GPIO5/ATT0
13
GPIO4/MAST
14
GPIO3/AGNS
15
ADR2/GPIO2/DOUT
16
MODE1
17
MODE2/MS
18
GPIO6/FLT
19
SCK
20
BCK
21
DIN
22
LRCK
23
ADR1/MISO(GPIO1)/FMT
24
XSMT
25
LDOO
26
DGND
27
DVDD
28
U300
TPA3128D2
MODSEL
1
INNL
11
SDZ
2
FAULTZ
3
INPR
4
INNR
5
GAIN/SLV
8
GVDD
7
PLIMIT
6
GND
9
INPL
10
MUTE
12
AM0
15
AM2
13
SYNC
16
AM1
14
AVCC
17
PVCC
18
PVCC
19
BSNL
20
OUTNL
21
GND
22
OUTPL
23
BSPL
24
GND
25
BSNR
26
OUTNR
27
GND
28
OUTPR
29
BSPR
30
PVCC
31
PVCC
32
0
Thermal Pad
U301
VCC_3V3_OP
10uF
6.3V
C309
100nF
C310
GND
0R R310
33R R313
33R R319
I2C_SDA
I2C_SCL
100K
R314
100K
R315
GND
2.2uF
6.3V C304
2.2uF
6.3V C306
GND
VCC_3V3_OP
10uF
6.3V
C300
100nF
C301
1nF
50V
C302
100nF
C303
GND
GND
GND
100nF C305 NC R302
NC R301
PCM5121_MUTE
AMP_MUTE
0R R304
GND
I2S_BCLK
I2S_LRCK
I2S_DATA_OUT
0R R309
GND
100K R311
VDD_PCM5121
VDD_PCM5121
10K R312
0R
R317
10K
R318
100K
R316
GND
1.02K R305
1.02K R303
1.02K
R307
1.02K
R308
GND GND
Audio_out_R
Audio_out_L
2.2uF C318
2.2uF C319
GND
Audio_out_R
0R R323
0R R320
GND
1K R322 AMP_SDZ
1uF
16V
C321
GND
20K
R325
100K R324
GND
GND
47K
R326
GVDD
GVDD
MMBT3904
1
3
2
Q300
100K
R329
10K
R328
GND
AMP_MUTE
220uF
25V
+
C311
VCC_AMP
1nF
50V
C314
0.1uF
25V
C313
10uF
25V
C312
220uF
25V
+ C328
VCC_AMP
1nF
50V
C331
0.1uF
25V
C330
10uF
25V
C329
GND
GND
0.22uF
50V
C317
0.22uF
50V
C322
0.22uF
50V
C323
0.22uF
50V
C325
GND
GND
GND
4.7uH
1
1
2
2
L300
4.7uH
1
1
2
2
L301
0805
3.3R
R321
0805
3.3R
R327
680nF
50V
C316
680nF
50V
C327
0.01uF
50V
C324
0.01uF
50V
C320
1nF
50V
C315
1nF
50V
C326
1
2
P300
Header 2H
GND
R2003 NC to 1K
，
add C2031,C2030
1nF
50V
C307
GND
R301 NC,add R334
5.1R R330
5.1R R331
add R330 & R331
Add R332,R333.R332-oR,R333-NC
DV1 to DV2 :
R303,R305 1K to 1.02K
DV2.5
Delate R332,R301
Change R313,R319 0R to 33R
Add R334 10K
TP302
TP303
TP304
TP305
TP300
TP301
10K R334
C307 to 0402,delete R307,R303,C308