4. TROUBLE SHOOTING
- 120 -
4.13 Speaker Trouble
Figure 4-77.
Figure 4-78.
Figure 4-79.
Connect to
CN102(Key)
Connect to
CN700
U603
U700
U201
U204
CN102(Key)
U404
U405
U403
L401
L402
U401
TEST POINT
Figure 4-80.
SPEAKER AMPLIFIER
(GPIO_17)
0.01u
C411
C412
0.01u
100K
R424
R415
0
80.6K
R416
33uH
L401
C417
33u
C418
1u
VBAT
C419
1u
NC
B4
VDD1
C4
VDD2
D4
VO+
VO-
A4
A1
_SD
GND1
A2
A3
GND2
GND3
B3
C2
GND4
GND5
C3
D2
GND6
GND7
D3
IN+
C1
IN-
D1
B1
U401
TPA2005D1ZQYR
R421
0
33uH
L402
NA
C422
80.6K
R419
C424
22n
0
R418
39K
R425
C415
NA
NA
C414
SND_HPLOUT
SND_SPK-
SND_HPROUT
LOUD_SPK_EN
AUDIO_CODEC
R707
47K
0
R720
10u
C703
R706
2.2K
R718
100K
C704
0.1u
C702
1u
2V8_MM
0
R721
NA
C709
R709
NA
C708
1u
R712
0
R715
0
100K
R717
R714
0
2V8_MM
1u
C706
2V8_MM
R716
100K
LOUT2
16
MCLK
1
22
MICBIAS
MODE
29
10
MONOOUT
OUT3
11
33
PGND
RINPUT1
27
RINPUT2
25
RINPUT3
23
12
ROUT1
15
ROUT2
32
SCLK
SDIN
31
VMID
21
20
VREF
9
ADCLRC
AGND
19
AVDD
18
5
BCLK
30
CSB
DACDAT
6
7
DACLRC
DBVDD
3
2
DCVDD
4
DGND
HPGND
14
17
HPVDD
28
LINPUT1
26
LINPUT2
24
LINPUT3
LOUT1
13
WM8973LEFL
U700
ADCDAT
8
0.1u
C705
R713
0
100p
C707
0
R711
R710
0
100K
R708
CAM_MIC_IN
CODEC_LRCK
DAC_DATA
CODEC_BCK
CODEC_CLK
ADC_DATA
CODEC_HPLOUT
CODEC_HPROUT
I2C_CLK
I2C_DATA
(GPIO_12)
(GPIO_37)
(AUXCS1)
64POLY MIDI
68K
R201
R203
100K
C211
1000p
22n
C204
C202
0.1u
1000p
C224
27p
C206
C228
FB201
27p
0.1u
C203
1u
C225
0
R221
0.1u
C216
10u
C209
0
R220
120p
BGND
11
4
BYP
EN1
2
EN2
3
6
GND
5
NC1
NC2
7
8
NC3
1
VIN
10
VOUT1
VOUT2
9
C201
U201
MIC2211-GMYML
R204
30K
0.1u
C219
C222
1u
33K
R205
100K
R202
MIDI_CS
3.3K
2V8_MIDI
R208
R209
NA
C227
0.1u
NA
C212
2V8_MIDI
1u
C223
C226
MIDI_IRQ
1u
1u
C205
C220
0.1u
0.01u
E8
TXOUT
VREF
F7
_CS
H3
_IRQ
D4
H4
_RD
_RST
B4
_WR
J2
2V8_VEXT
C207
B2
MTR
NC1
A1
A8
NC2
J1
NC3
H5
PLLC
RXIN
C6
SDI
D1
B7
SPOUT1L
SPOUT1R
J8
B8
SPOUT2L
H8
SPOUT2R
SPVDDL
A6
J6
SPVDDR
A7
SPVSSL
SPVSSR1
H7
J7
SPVSSR2
B6
EXTIN
EXTOUT
D7
D6
GPIO0
C5
GPIO1
GPIO2
C1
GPIO3
C4
F6
HPC
C8
HPOUTL
C7
HPOUTR
HPVSS
D8
IOVDD1
H1
B3
IOVDD2
C2
LDE1_GPIO4
LED0
C3
LED2_GPIO5
B1
D3
LRCK
D5
F2
E3
D6
D7
E2
DVDD1
J4
DVDD2
A2
F1
DVDD3
J3
DVSS1
DVSS2
A3
DVSS3
E1
EQ1L
B5
J5
EQ1R
A4
EQ2L
EQ2R
G6
EQ3L
A5
H6
EQ3R
G7
EXC
YMU787
G4
A0
AVDD
G8
F8
AVSS
E6
BBL
BBR
E7
D2
BLCK
CLKI
G5
H2
D0
D1
G3
G2
D2
D3
F3
G1
D4
VBAT
U204
C217
0.1u
C221
1V8_MIDI
22u
1V8_MIDI
1u
C218
C208
1u
VBAT
47p
C214
C213
47p
M
SPK_P_SM
MIDI_SPK-
MIDI_HPLOUT
DATA08
WR_N
MIDI_RST
RD_N
MIDI_CS
ADD00
MIDI_IRQ
26MHZ
MIDI_HPROUT
DATA15
DATA14
DATA13
DATA12
DATA11
DATA10
DATA09
(GPIO_46)
VBAT
NLAS4684FCT1G
U405
COM1
C3
COM2
A3
GND
B1
IN1
C2
IN2
A2
NC1
C1
NC2
A1
NO1
C4
NO2
A4
V+
B4
R430
0
C433
1u
MIDI_SPK-
SND_SPK-
SPK_SRC_SEL
SPK+
SPK-
M
CIRCUIT
Содержание KG920
Страница 3: ... 4 ...
Страница 48: ...3 TECHNICAL BRIEF 49 3 8 2 AFE Analog Front End Figure 3 22 ...
Страница 52: ...3 TECHNICAL BRIEF 53 3 8 5 MBGM01 5M CCD ISP Figure 3 25 ...
Страница 55: ...3 TECHNICAL BRIEF 56 3 8 6 MV8620 5M back end IC Multi Media Function Figure 3 26 ...
Страница 58: ...3 TECHNICAL BRIEF 59 3 9 MIDI IC YMU787 Figure 3 27 YMU787 BLOCKDIAGRAM ...
Страница 87: ...4 TROUBLE SHOOTING 88 Graph 4 8 BLUE RST Graph 4 9 DEBUG_TX RX Graph 4 10 PCM_SYNCS TX RX USC0 ...
Страница 96: ...4 TROUBLE SHOOTING 97 4 7 KEY backlight Trouble TEST POINT Q101 R122 Q101 LD101 LD119 Figure 4 38 Figure 4 39 ...
Страница 108: ...4 TROUBLE SHOOTING 109 CIRCUIT WAVEFORM Figure 4 59 Graph 4 11 Figure 4 60 Figure ...
Страница 109: ...4 TROUBLE SHOOTING 110 TEST POINT U602 FB602 U100 Q100 Q101 C113 C114 Figure 4 61 Figure 4 62 ...
Страница 111: ...Figure 4 65 Graph 4 12 4 TROUBLE SHOOTING 112 C102 C113 U101 Figure 4 66 C137 U103 TEST POINT WAVEFORM ...
Страница 112: ...4 TROUBLE SHOOTING 113 Figure 4 67 Figure 4 68 CIRCUIT ...
Страница 115: ...4 TROUBLE SHOOTING 116 WAVEFORM Graph 4 13 ...
Страница 139: ...6 BLOCK DIAGRAM 140 6 BLOCK DIAGRAM Figure 6 1 ...
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