Table of Contents
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VANA_2.85V
TH200
JIG_ON
R203
EAR_P
SPK_N
SPK_P
VBAT
VCHG_5V
IFC300
1
1
2
2
3
L301
3
4
L302
4
5
L303
5
6
L304
6
7
L305
7
8
8
9
9
10
L306
10 11
11
12
R314
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
NC 21
22
NC
23
NC
NC 24
25
NC
NC 26
C313
NC 27
ZD300
C310
D(9)
D(10)
D(11)
D(12)
D(13)
D(14)
VGPIO_2.8V
D(15)
SCL
SDA
D200
D201
EAR_N
C232
C215
ZD301
L316
R313
R309
R310
UART1_TD_IF
UART1_RD_IF
JIG_ON_IF
D302
Digital External Interface- UART
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KEY_EN
UART_SW
BT_LDO_EN
MONO_SEL
SYS_CLK_REQ
BT_RST
VIB_EN
MIC_BIAS
MIC_N
C231
MIC_P
C216
EAR_MIC_N
EAR_MIC_P
C218
R206
EAR_SW
EAR_SW_REF
KEYIN(0)
KEYIN(1)
KEYIN(2)
KEYIN(0:2)
FM_ANT
L300
C300
L317
R312
C307
C308
C309
D303
VR300
9-11
Flow Chart of Troubleshooting
DATA9
E18
DATA10
D18
DATA11
B17
DATA12
B18
DATA13
A19
DATA14
C18
DATA15
W4
GPIO1
R219
V2
GPIO2
W2
GPIO5
V3
GPIO6
V4
determine VIO voltage level
GPIO7
G4
GPIO8
H5
GPIO10
W3
GPIO20
H4
GPIO38
J1
GPIO39
W1
GPIO40
V1
GPIO41
J4
GPIO57
R8
AUX_POK
M19
AUXADC0
N16
AUXADC1
P18
FM_L
AUXAUD_IN_L
R18
FM_R
AUXAUD_IN_R
W16
EAR_OUT_N|R
W17
EAR_OUT_P|L
T18
INTMIC_BIAS
U19
INTMIC_IN_N
V19
INTMIC_IN_P
0.2mm
U18
EXTMIC_BIAS
R19
EXTMIC_IN_N
T19
EXTMIC_IN_P
W18
HSET_OUT_N
W19
HSET_OUT_P
P19
HKSW_DET1
N19
HKSW_DET2
K1
KEYIN0
K2
KEYIN1
K4
KEYIN2
O( )
EAR_SW
L318
L319
L315
AUX_DET
UART1TD
UART1RD
JIG_ON
UART0_TD
UART0_RD
C336
C337
UCP200
R322
EAR_P
VCM_OUT
R306
EAR_N
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