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4.15.5 Microphone for Head_Set
MIC for Head_Set path as below:
Insert Headset -> EAR_SENSE_N(pin3) go 0V -> MSM6250A sense Head_Set insertion ->
MIC signal go to MSM
Ear jack
R503
100K
22n
C511
0
R508
PRSB6.8C
D507
NA
R509
R506
51
D510
PRSB6.8C
C512
33u
100K
R504
D508
PRSB6.8C
C513
33u
2.2K
R505
51
R507
10p
C519
33p
C518
1
10
11
12
13
14
2
3
4
5
6
7
8
9
CN502
HSEJ-10S-05
PRSB6.8C
D509
D506
PRSB6.8C
D505
PRSB6.8C
PRSB6.8C
D504
HPH_R
HPH_L
EAR_SENSE_N
UART_RX_EAR
MIC2P
STEREO_DET_N
VREG_MSMP_2.7V
MICBIAS
UART_TX_EAR
VREG_MSMP_2.7V
Start
EAR_SENSE_N is 0V?
Yes
END
Make a call
Check R505
Or change the Main Board
MIC_BIAS is 1.8V ?
Change the Main B'd
Yes
OK
NO
NO
NO
Try change the head set
Check connector pin and
Head_set soldering point
Or change the Main Board
Z3X-BOX.COM
Summary of Contents for L601i
Page 1: ...Date October 2006 Issue 1 0 Service Manual Model L601i Service Manual L601i Z 3 X B O X C O M ...
Page 3: ... 4 Z 3 X B O X C O M ...
Page 45: ...3 TECHNICAL BRIEF 46 Figure PM6650 2 Functional Block Diagram Z 3 X B O X C O M ...
Page 105: ...4 TROUBLE SHOOTING 106 Audio AMP 22 and 23 pin of CN501 Z 3 X B O X C O M ...
Page 109: ...4 TROUBLE SHOOTING 110 Ear_sense_n pin R506 R507 R505 Z 3 X B O X C O M ...
Page 112: ...4 TROUBLE SHOOTING 113 Q400 Q401 VBAT T GND Z 3 X B O X C O M ...
Page 125: ...5 DOWNLOAD 126 Click on X button to use another function Z 3 X B O X C O M ...
Page 130: ...6 BLOCK DIAGRAM 131 6 2 Interface Diagram L601i Interface Diagram Z 3 X B O X C O M ...
Page 132: ...6 BLOCK DIAGRAM 133 Top Side Z 3 X B O X C O M ...
Page 133: ... Bottom Side 6 BLOCK DIAGRAM 134 Z 3 X B O X C O M ...
Page 141: ... 142 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 142: ... 143 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 143: ... 144 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 144: ... 145 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 145: ... 146 Z 3 X B O X C O M ...
Page 151: ... 152 Z 3 X B O X C O M ...
Page 153: ... 154 Z 3 X B O X C O M ...
Page 176: ...Note Z 3 X B O X C O M ...
Page 177: ...Note Z 3 X B O X C O M ...