3. TECHNICAL BRIEF
- 32 -
3.10 Main Speaker
The main speaker is driven directly by AD6720 AOUT1P and AOUT1N pins and the gain is controlled
by the PGA in an AD6720. The receiver is placed in the folder cover and connected to AOUT1x
terminal via FPCB.
Figure 3-13. MAIN SPEAKER
ACOUSTIC & MIDI
VA201
EVL5M02200
C205
1u
C200
10u
EVL5M02200
VA200
C4
NO1
A4
NO2
B4
V+
U204
MAX4684EBC_T
C3
COM1
A3
COM2
B1
GND
C2
IN1
A2
IN2
C1
NC1
A1
NC2
100K
R631
SPK_P
REC_N
REC_P
SPK_RCV_P
SPK_RCV_N
SPK_N
SPK_SEL
39p
C147
AOUT1N
AOUT1P
H16
L17
AIN3N
AIN3P
K17
R135
R133
4.7
REC_N
REC_P
120K
R214
1000p
C222
15
SPVDD
16
SPVSS
VDD
7
VREF
9
8
VSS
_CS
29
_IRQ
3
31
_RD
4
_RST
28
_WR
23
D4
22
D5
21
D6
20
D7
EQ1
12
EQ2
13
14
EQ3
HPOUT_L
10
HPOUT_R
11
IOVDD
32
2
LED
MTR
19
NC
5
6
PLLC
SPOUT1
17
18
SPOUT2
YMU762C-QZ
U203
30
A0
1
CLK1
D0
27
D1
26
D2
25
D3
24
C224
0.1u
C228
1u
R218
3.3K
33K
R212
2V85_VCAM
VBAT
C229
1u
0.1u
C227
2V85_VCAM
20K
R211
0.1u
C213
R210
NA
C218
270p
C214
0.01u
SPK
SPK_N
13MHz
26M_MIDI
DATA12
DATA13
DATA14
DATA15
_MIDI_CS
_MIDI_IRQ
_RD
_MIDI_RESET
_WR
SPK_P
ADD00
DATA08
DATA09
DATA10
DATA11
Содержание KG225
Страница 1: ...Date April 2006 Issue 1 0 Service Manual Model KG225 Service Manual KG225 M O B ILE CAM E R A ...
Страница 3: ... 4 ...
Страница 19: ...3 TECHNICAL BRIEF 20 Figure 3 4 SYSTEM INTERCONECTION OF AD6720 EXTERNAL INTERFACE ...
Страница 66: ...4 TROUBLE SHOOTING 67 4 12 KEY backlight Trouble Q300 R359 TEST POINT Figure 21 ...
Страница 79: ... 80 5 DOWNLOAD B Multi Download Procedure 1 Run GSM Multi Download program and select Setting ...
Страница 82: ... 83 5 DOWNLOAD 7 Check if the ADI option is set to Hermes 8 Press OK to end Configuration Select Rate ...
Страница 84: ... 85 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM ...
Страница 85: ... 86 ...
Страница 92: ... 93 KG225 8 PCB LAYOUT ...
Страница 93: ... 94 KG225 8 PCB LAYOUT ...
Страница 101: ... 102 10 STAND ALONE TEST Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Страница 109: ... 110 ...
Страница 125: ...Note ...
Страница 126: ...Note ...