- 107 -
4.15.4 Microphone for Main MIC
Main Microphone path as below:
MIC -> C528,C529 -> MSM6250A -> MIC feed back gain logic -> MSM internal CODEC
MIC
C521
22n
10p
C523
C520
47p
22n
C517
R518
0
10u
C514
SP0102BE3
U501
G1
2
3
G2
5
G3
1
OUT
PWR
4
33p
C522
MIC1N
MIC1P
MICBIAS
Close to MSM
W15
HPH_R
W17
HPH_L
W18
MICOUTN
MIC1N
AF22
MICINP
AF24
CCOMP
AF18
EAR1OP
AF19
AUXIN_AUXIR
AF20
AUXIP_AUXIL
AE20
MIC1P
AE22
MICINN
AE23
MICBIAS
AE19
AUXON_AUXOR
AC19
MIC2P
AC20
MICFBP
AC21
MICFBN
AC17
EAR1ON
AC18
AA17
AUXOP_AUXOL
AA18
MIC2N
AA19
MICOUTP
C207
22n
C227
0.1u
MICFBN
MICFBP
MIC2P
M_RCV-
MICOUTP
MIC1N
M_RCV+
MICBIAS
MICINN
MIC1P
MICINP
MICOUTN
HPH_L
HPH_R
GND_RET
Start
MIC_BIAS(C514,C517) is 1.8V
Change the Main B'd
NO
Make a call
Can you scoping some
sound signal at C520,C521
Change the MIC
NO
YES
YES
Change the Main B'd
make some sound or
voice to MIC
Work well?
END
YES
NO
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 ...