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Flow Chart of Troubleshooting
9-10
Digital External Interface
OUT4
GND
IN1 1
2
IN2
IN3 3
4
IN4
OUT1
5
6
OUT2
OUT3
7
8
F600
ICVE10054E250R201FR
GND
9 10
2
GND
IO1
1
IO2
34
IO3
IO4
5
6
IO5
ESDALC6V1-5M6
ZD601
C600
TA600
C602
VBAT
R601
C608
V_EXT_CHARGE
+VDD_IO_HIGH_2.9V
R604
6
6
7
7
8
8
9
9
22 22
23
23
24 24
25
25
26 26
3
3
4
4
5
5
15 15
16
16
17 17
18
18
19 19
2
2
20
20
21
21
IFC600
1
1
10
10
11
11
12
12
13
13
14
14
RD2R020HB1
R603
4
5
6
+VDD_IO_HIGH_2.9V
ZD600
NUP5120X6T2G
2
1
3
R606
200K,1%
C604
L605
C606 C607
R605
L604
10K,1%
C603
TXD1
RXD1
AUX_ON
AUX_ON_IF
RXD1_IF
TXD1_IF
EAR_SWITCH
JACK_IN
EARSPK_R
EARSPK_COM
EARSPK_L
EARMIC_P
EARMIC_N
USB_D+
USB_D-
+VBUS
EAR_ADC
Close to MCP
MICROPHONE
C611
C618
MIC_BIAS_2.15V
R607
N
O
1
2
10
NO2
1
V
C
C
NLAS5223BMNR2G
3
COM1
9
COM2
6
G
N
D
4
IN1
8 IN2
NC1
5
N
C
7
U601
TP603
R613
DF2S5.6FS(TPL3)
ZD604
R608
BLM15BB750SN1D
L600
C613
R616
TA601
C612
C616
C610
L601
BLM15BB750SN1D
C617
MIC_BIAS_2.15V
L603
BLM15BB750SN1D
L602
BLM15BB750SN1D
R614
ZD605
DF2S5.6FS(TPL3)
C619
MIC600
MIC_N
MIC_P
JACK_EN
EARMIC_P
EARMIC_N
9-6. Speaker & Receiver Part