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3. TECHNICAL BRIEF
MIDI Ring Tone/MP3 (Headset)
MSM6275
(U101-1)
❈
MIDI Ring Tone/MP3 Headset Mode is routed as below
MSM6275 HPH_L, HPH_R
Audio & Sound Main Component
There are 6 main components in U830.
Component
1
MSM6275
2
Audio amp
3
Analog Switch
4
Receiver &
Load Speaker
5
MIC
6
MMI Conn
Head_Set
AMP
(U201)
Voice
Voice + MP3 + MIDI
➞
➞
18PIn MMI
Headset
Design No.
Maker Part No.
U101
MSM6275
U201
TPA2010D1YZF
U303
DG2799DN-T1-E3
1712-8K-02P
U200
SP0102BE3
CN700
HSEJ-18S04-25R
Table. Audio main component list
- 70 -
Analog
switch
(U303)
Receiver and
Loud Speaker
MIC
Head_set MIC
Note
Base-Band Modem
Class-D Audio Amp
3 Channel Analog SW
8 ohm receiver & Load
Speaker
-42 dB microphone
18Pin MMI Connector
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Troubleshooting
