4. TROUBLE SHOOTING
- 76 -
• Earphone Sending Path
– HSMICP is the audio signal from the microphone of the earphone.
– R232 and C223 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 Ear-jack
(2012)
Close to Ear-jack
(2012)
N.A.
N.A.
33K
R223
(1608)
R211
R210
1K
10K
22
R216
R215 4.7
1K
R221
C227
27p
V_IO
C214
2.2u
27p
C232
47K
R213
C219 10u
68p
C229
C225
NA
22K
R225
100nH
L201
C228
47p
R220
100
R233
NA
VA204
AVL5M02-200
10u
C216
4.7
R218
0
R241
J201
1
2
3
4
5
C226
27p
R212
5.6K
C223 0.1u
AVL5M02-200
VA203
0
R232
HSMICP
AUXI
JACK_DETECT
HOOK_DETECT
HSO
HSMICBIAS
The direction of the audio
Signal to ear-mic
The direction of the audio
Signal from ear-mic
To U101(IOTA)
From
U101(IOTA)
R210, R212
"HEADSET MIC
BIAS"
ADIN1
"JACK_DETECT"
signal
R223,R225
C223,R232
C219,R216
the audio Signal to ear-mic
the audio Signal from ear-mic
Содержание L1150
Страница 1: ...Service Manual Model L1150 Service Manual L1150 P N MMBD0034601 Date June 2004 Issue 1 0 ...
Страница 3: ......
Страница 18: ...3 H W Circuit Description 17 Figure 1 Receiver Part Block Diagram ...
Страница 42: ...3 H W Circuit Description 41 A BaseBand Components Component Side ...
Страница 43: ...3 H W Circuit Description 42 B BaseBand Components Keypad Side C Digital Baseband DBB Processor ...
Страница 51: ...4 TROUBLE SHOOTING 50 BaseBand Part Troubleshooting 4 1 Baseband Components Component Side 4 TROUBLE SHOOTING ...
Страница 102: ...5 DISASSEMBLY INSTRUCTION 101 5 DISASSEMBLY INSTRUCTION 2 1 1 2 ...
Страница 103: ...5 DISASSEMBLY INSTRUCTION 102 1 2 3 ...
Страница 104: ...5 DISASSEMBLY INSTRUCTION 103 2 1 1 2 ...
Страница 105: ...5 DISASSEMBLY INSTRUCTION 104 3 ...
Страница 106: ...5 DISASSEMBLY INSTRUCTION 105 ...
Страница 113: ...7 BLOCK DIAGRAM 112 Baseband Part 7 BLOCK DIAGRAM The Block Diagram of the Baseband Part ...
Страница 122: ... 121 9 PCB LAYOUT ...
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