
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Earphone Trouble (2)
•
Earphone Sending Path
- HSMICP is the audio signal from the microphone of the earphone.
- R219, L201 and C226 make the path of the audio signal from the microphone of the earphone.
- This audio signal is delivered to ABB(IOTA).
•
Earphone Receiving Path
- HSO is the audio signal from ABB(IOTA).
Close to Earjack
5
J201
1
2
3
4
C224
47p
L201
100nH
C227
10u
C220
47p
R223
1K
47p
C230
4.7u
C223
SP201
5.6K
R214
47p
C222
C233
47p
4.7u
C221
R212
1K
47p
C229
27p
C231
C228
NA
R216
NA
0
R222
R221
4.7
C226
0.1u
15K
R213
3K
R211
R219
0
R218
4.7
SP202
27p
C232
R217
20K
15
R220
4.7u
C290
C225
27p
C234
47p
1K
R215
HSO
HSMICBIAS
JACK_DETECT
HOOK_DETECT
HSMICP
From
U102(IOTA)
To U102(IOTA)
The direction of the audio
Signal from ear-mic
The direction of the audio
Signal to ear-mic
Z3X-BOX.COM
Summary of Contents for LG9200
Page 3: ... 4 Z 3 X B O X C O M ...
Page 107: ... 120 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 108: ... 121 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 109: ...8 PCB LAYOUT 122 Z 3 X B O X C O M ...
Page 110: ... 123 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 111: ... 124 Z 3 X B O X C O M ...
Page 116: ...9 Calibration 129 E Calibration Equipment Setup Z 3 X B O X C O M ...
Page 123: ... 136 Z 3 X B O X C O M ...
Page 142: ...Note Z 3 X B O X C O M ...