3. TECHNICAL BRIEF
- 70 -
3.14 Headset Interface
Headset connector has 12pins function, Differential Microphone input, Stereo Single-Ended Receiver
Output and four function key buttons.
Microphone input is connected to AIN2P/AIN2N and Stereo Output is connected to AOUT3L/AOUT3R.
(MP3_PLAY/PAUSE)
(HOOK_DETECT)
(MP3_FF)
(MP3_REW)
680
R414
EVLC18S02015
VA409
VA410
EVLC18S02015
100
R413
14
2
3
4
5
6
7
8
9
CN401
1
10
11
12
13
100
R410
100
R411
R409
100
EVLC18S02015
VA407
VA406
EVLC18S02015
VA408
EVLC18S02015
KEY_ROW0
KEY_COL5
KEY_COL4
KEY_COL3
KEY_COL2
Figure 3-35.
(GPIO_9)
EVL5M02200
VA404
VA401
EVL5M02200
4.7
R408
C401
10u
100
R405
C409
47p
VA403
EVL5M02200
2V8_VMEM
14
2
3
4
5
6
7
8
9
CN401
1
10
11
12
13
R406
4.7
39p
C402
1K
R401
0.1u
C403
C410
47p
R402
100K
100
R404
47p
C407
C408
1u
100
R431
VA405
EVL5M02200
R403
2.2K
EVL5M02200
VA402
C406
1u
2V5_VMIC
2.2K
R412
JACK_DETECT
AUX_MIC_N
AUX_MIC_P
Содержание KG920
Страница 3: ... 4 ...
Страница 48: ...3 TECHNICAL BRIEF 49 3 8 2 AFE Analog Front End Figure 3 22 ...
Страница 52: ...3 TECHNICAL BRIEF 53 3 8 5 MBGM01 5M CCD ISP Figure 3 25 ...
Страница 55: ...3 TECHNICAL BRIEF 56 3 8 6 MV8620 5M back end IC Multi Media Function Figure 3 26 ...
Страница 58: ...3 TECHNICAL BRIEF 59 3 9 MIDI IC YMU787 Figure 3 27 YMU787 BLOCKDIAGRAM ...
Страница 87: ...4 TROUBLE SHOOTING 88 Graph 4 8 BLUE RST Graph 4 9 DEBUG_TX RX Graph 4 10 PCM_SYNCS TX RX USC0 ...
Страница 96: ...4 TROUBLE SHOOTING 97 4 7 KEY backlight Trouble TEST POINT Q101 R122 Q101 LD101 LD119 Figure 4 38 Figure 4 39 ...
Страница 108: ...4 TROUBLE SHOOTING 109 CIRCUIT WAVEFORM Figure 4 59 Graph 4 11 Figure 4 60 Figure ...
Страница 109: ...4 TROUBLE SHOOTING 110 TEST POINT U602 FB602 U100 Q100 Q101 C113 C114 Figure 4 61 Figure 4 62 ...
Страница 111: ...Figure 4 65 Graph 4 12 4 TROUBLE SHOOTING 112 C102 C113 U101 Figure 4 66 C137 U103 TEST POINT WAVEFORM ...
Страница 112: ...4 TROUBLE SHOOTING 113 Figure 4 67 Figure 4 68 CIRCUIT ...
Страница 115: ...4 TROUBLE SHOOTING 116 WAVEFORM Graph 4 13 ...
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