4. TROUBLE SHOOTING
- 114 -
4.17.4 Microphone for Main MIC
Main Microphone path as below:
MIC -> C504,C506 -> MSM6250A -> MIC feed back gain logic -> MSM internal CODEC
MIC
33p
C513
G1
2
3
G2
5
G3
1
OUT
PWR
4
SP0102BE3
U500
C502
47p
10u
C500
22n
C504
R503
0
C506
22n
C507
NA
10p
C514
MICBIAS
MIC1N
MIC1P
Near to MSM
AUDIO
C218
0.1u
C216
22n
22n
C217
HPH_R
W15
HPH_L
W17
MICOUTN
W18
AF19
MIC1N
AF20
MICINP
AF22
AF24
CCOMP
EAR1OP
AF18
AUXIN_AUXIR
AUXIP_AUXIL
AE19
MIC1P
AE20
MICINN
AE22
MICBIAS
AE23
EAR1ON
AUXON_AUXOR
AC18
AC19
MIC2P
MICFBP
AC20
MICFBN
AC21
AC17
AUXOP_AUXOL
AA17
MIC2N
AA18
MICOUTP
AA19
MICFBN
MICFBP
RCV-
MICOUTP
MID_SPK-
MICINP
MIC1N
RCV+
MICBIAS
MICINN
MIC1P
HPL_R
HPL_L
MICOUTN
MIC2N
MIC2P
GND_RET
Start
MIC_BIAS(C505) is 1.8V
Change the Main B'd
NO
Make a call
Can you scoping some
sound signal at C504,C506
Change the MIC
NO
YES
YES
Change the Main B'd
make some sound or
voice to MIC
Work well?
END
YES
NO
Содержание U310
Страница 3: ... 4 ...
Страница 20: ...3 TECHNICAL BRIEF 21 ...
Страница 33: ...3 TECHNICAL BRIEF 34 Figure 3 5 10 1 Bluetooth system architecture ...
Страница 47: ...3 TECHNICAL BRIEF 48 Figure PM6650 2M Functional Block Diagram ...
Страница 72: ...4 TROUBLE SHOOTING 73 4 2 SIGNAL PATH WCDMA Tx PATH WCDMA Rx PATH ...
Страница 76: ...4 TROUBLE SHOOTING 77 ...
Страница 90: ...4 TROUBLE SHOOTING 91 ...
Страница 110: ...4 TROUBLE SHOOTING 111 CN501 C537 C538 MSM6250A ...
Страница 116: ...4 TROUBLE SHOOTING 117 C216 C217 for MIC serial capacitor MSM6250A ...
Страница 119: ...4 TROUBLE SHOOTING 120 Q400 Q401 Q402 VBATT GND ...
Страница 149: ... 150 8 pcb layout ...
Страница 150: ... 151 8 pcb layout ...
Страница 151: ... 152 8 pcb layout ...
Страница 152: ... 153 8 pcb layout ...
Страница 153: ... 154 ...
Страница 160: ...9 Calibration RF Auto Test Program 161 9 3 1 Example for Calibration Click START U310 ...
Страница 161: ...9 Calibration RF Auto Test Program 162 9 3 2 Example for RF Auto Test Click Run button U310 U310 U310 U310 ...
Страница 163: ... 164 ...
Страница 187: ...Note ...
Страница 188: ...Note ...