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Receiver / Speaker phone Circuits
A single analog switch is employed to support both voice and speaker Phone mode with RCV_P. In the
speaker phone mode the SPK_PHN_EN port sets ‘H’ and RCV_SPK_SEL port sets ‘H’ , then the RCV_P
will be connected with MIDI sound path(NO) and operate as loud speaker. The other case, the
SPK_PHN_EN port and RCV_SPK_SEL port will remain ‘L’ state and RCV_P will be connected with
receiver path.(NC)
ANALOG S/W
22
R223
47p
C237
C239
10p
C234
10p
COM
5
3
GND
IN
1
4
NC
NO
6
2
V+
DG2011DX-T1-E3
U203
0.1u
C230
0.1u
V_IO
C236
R224 22
A3
GND
B1
C2
IN1
A2
IN2
NC1
C1
A1
NC2
C4
NO1
A4
NO2
B4
V+
VBAT
U202
DG3535DB-T5-E3
COM1
C3
COM2
10p
C238
SPK_RCVN
RCV_SPK_SEL
SPK_RCVP
RCV_P
SPKN
SPKP
RCV_N
SPK_PHN_EN
MIDI_SPK_I
Figure 21. Receiver and Speaker phone mode system switch
Z3X-BOX.COM
Содержание MG210
Страница 1: ...Date May 2006 Issue 1 0 Service Manual MG210 Service Manual Model MG210 Z 3 X B O X C O M ...
Страница 3: ... 2 Z 3 X B O X C O M ...
Страница 5: ...Z 3 X B O X C O M ...
Страница 32: ...3 H W Circuit Description 31 Figure 14 Power Supply Scheme Z 3 X B O X C O M ...
Страница 45: ...4 2 KEYPAD Components Placement 4 TROUBLE SHOOTING 44 U301 MIC200 Z 3 X B O X C O M ...
Страница 46: ...4 TROUBLE SHOOTING 45 4 3 FPCB Components Placement 4 4 Baseband Components LD1 BAT1 CN2 CN3 Z 3 X B O X C O M ...
Страница 87: ...4 TROUBLE SHOOTING 86 Waveform PA_ON VRAMP Z 3 X B O X C O M ...
Страница 91: ...5 DOWNLOAD 90 5 2 Download Procedure 5 2 1 Computer Program file MultiGSM exe Click Z 3 X B O X C O M ...
Страница 93: ...5 DOWNLOAD 92 5 2 3 Configuration Setting C GSMULTI Model MG210 dll Z 3 X B O X C O M ...
Страница 94: ...5 DOWNLOAD 93 5 2 4 Press Start Button MG210 Z 3 X B O X C O M ...
Страница 95: ...5 DOWNLOAD 94 5 2 5 After Start Button Which Stand by condition MG210 Z 3 X B O X C O M ...
Страница 96: ...5 DOWNLOAD 95 5 2 6 SW downloading Condition MG210 Z 3 X B O X C O M ...
Страница 97: ...5 DOWNLOAD 96 5 2 7 SW downloading END Condition MG210 Z 3 X B O X C O M ...
Страница 100: ...6 SERVICE AND CALIBRATION 99 4 Click on CALIBRATION START button MG210 MG210 Z 3 X B O X C O M ...
Страница 101: ... 100 Z 3 X B O X C O M ...
Страница 106: ... 105 8 pcb layout Z 3 X B O X C O M ...
Страница 107: ... 106 8 pcb layout Z 3 X B O X C O M ...
Страница 111: ... 110 Z 3 X B O X C O M ...
Страница 126: ...Note Z 3 X B O X C O M ...
Страница 127: ...Note Z 3 X B O X C O M ...