4. TROUBLE SHOOTING
- 111 -
4.16.4 Microphone for Main MIC
Main Microphone path as below:
MIC -> C508,C509 -> MSM6250A -> MIC feed back gain logic -> MSM internal CODEC
MIC
47p
C507
C511
10p
33p
C510
2
G1
G2
3
G3
5
OUT
1
4
PWR
U501
SP0204LE5-PB
22n
C509
10u
C506
C508
22n
0
R504
MIC1N
MIC1P
MICBIAS
Close to MSM
22n
C205
HPH_R
W15
HPH_L
W17
MICOUTN
W18
AF19
MIC1N
AF20
MICINP
AF22
CCOMP
AF24
EAR1OP
AF18
AUXIN_AUXIR
AUXIP_AUXIL
AE19
MIC1P
AE20
MICINN
AE22
MICBIAS
AE23
EAR1ON
AC17
AUXON_AUXOR
AC18
MIC2P
AC19
MICFBP
AC20
MICFBN
AC21
AUXOP_AUXOL
AA17
MIC2N
AA18
MICOUTP
AA19
0.1u
C225
RCV-
MICOUTP
MICBIAS
MICINN
MIC1P
MICFBN
MICFBP
MIC2P
MICINP
MIC1N
RCV+
MICOUTN
HPH_L
HPH_R
GND_RET
NO
NO
YES
YES
YES
NO
Start
MIC_BIAS(C506,
C507) is 1.8V
Change the Main B'd
Make a call
Can you scoping some
sound signal at C508,C509
Change the MIC
Change the Main B'd
make some sound or
voice to MIC
Work well?
END
Z3X-BOX.COM
Содержание L602i
Страница 3: ... 4 Z 3 X B O X C O M ...
Страница 34: ...3 TECHNICAL BRIEF 35 3 7 Hardware Architecture Figure Simplified Block Diagram Z 3 X B O X C O M ...
Страница 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram Z 3 X B O X C O M ...
Страница 71: ...4 TROUBLE SHOOTING 72 4 2 SIGNAL PATH WCDMA Tx PATH WCDMA Rx PATH Z 3 X B O X C O M ...
Страница 83: ...4 TROUBLE SHOOTING 84 4 5 5 Check RF Rx Level TP1 TP3 TP4 Bias1 TP2 Z 3 X B O X C O M ...
Страница 101: ...4 TROUBLE SHOOTING 102 LCD Control data flow Z 3 X B O X C O M ...
Страница 109: ...4 TROUBLE SHOOTING 110 AUDIO AMP R502 C501 R503 FP500 501 CN600 PIN 14 15 Speaker Soldering Point Z 3 X B O X C O M ...
Страница 113: ...4 TROUBLE SHOOTING 114 Z 3 X B O X C O M ...
Страница 126: ...5 DOWNLOAD 127 Download of Module image in progress Download process has completed successfully Z 3 X B O X C O M ...
Страница 130: ...5 DOWNLOAD 131 Click on X button to use another function Z 3 X B O X C O M ...
Страница 134: ...6 BLOCK DIAGRAM 135 Table 2 1 1 RF Block Component Z 3 X B O X C O M ...
Страница 137: ...6 BLOCK DIAGRAM 138 Top Side Z 3 X B O X C O M ...
Страница 138: ...6 BLOCK DIAGRAM 139 Bottom Side Z 3 X B O X C O M ...
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Страница 149: ... 150 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 150: ... 151 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 151: ... 152 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 152: ... 153 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 153: ... 154 LGMC 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 154: ... 155 LGMC 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 155: ... 156 8 PCB LAYOUT Z 3 X B O X C O M ...
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