4. TROUBLE SHOOTING
- 80 -
RADIO
(FOR FM RADIO)
(10V,K,X5R)
NO RADIO
FOR RADIO
2.7K
RADIO
RADIO_DETECT
27K
2V8_VIO
FOR RADIO
C339
0.1u
0
R327
VBAT
R342
NA
47
R338
2V8_RADIO
R331
0
0.1u
C333
100K
R343
R334
10K
NA
R340
330K
R341
R329
20K
8
16
VA
11
VD
VIO
10
5
_RST
6
_SEN
2
FMIP
4
GND1
GND2
12
GND3
15
GPIO1
19
18
GPIO2
GPIO3
17
14
LOUT
NC1
1
20
NC2
PGND
21
9
RCLK
3
RFGND
13
ROUT
SCLK
7
SDIO
U302
SI4702-B16
R336
4.7K
FM_RST
NLAS5223BMNR2G
U305
COM1
3
COM2
9
GND
6
4
IN1
8
IN2
NC1
5
7
NC2
2
NO1
10
NO2
1
VCC
0
R328
20K
R330
C330
1u
9
BGND
BYPASS
23
GND
7
VDD
VIN1
1
VIN2
5
8
VOUT1
6
VOUT2
_SHDN
4
U303
LM4809LD
R333
39K
R337
4.7K
6
BGND
2
GND
NC
5
STBY
1
3
VIN
VOUT
4
1u
C329
BH28FB1WHFV
U304
2V8_RADIO
R344
240K
2V8_RADIO
R335
100K
TP301
RADIO_AMP_SHDN
100p
C331
C342
1u
C341
1u
R339
27K
2V8_RADIO
C332
0.1u
FM_INT
0.1u
C338
22n
C335
100K
R345
NA
C334
2V8_RADIO
NA
R325
2V8_RADIO
2V8_VIO
2V8_VIO
39K
R326
0.1u
C340
FM_ANT
FM_32K
EPPA1
FM_INT
RADIO_AMP_SHDN
RADIO_DETECT
RADIO_AMP_SHDN
RADIO_EN
RADIO_SPK_R
RADIO_SPK_L
FM_SCL
FM_SDA
RADIO_SPK_R
RADIO_SPK_L
FM_RST
AUXOP_FMR
AUXOP_FML
HEADSET_RADIO_SEL
EPPA1
CIRCUIT DIAGRAM
Summary of Contents for KG270
Page 1: ...Date April 2007 Issue 1 0 Service Manual Model KG270 MG160 Service Manual KG270 MG160 ...
Page 3: ... 4 ...
Page 87: ... 88 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM ...
Page 92: ... 93 8 PCB LAYOUT ...
Page 93: ... 94 8 PCB LAYOUT ...
Page 107: ...10 CALIBRATION 108 10 2 10 Calibration data will be saved to the following folder ...
Page 113: ... 114 ...
Page 124: ...Note ...
Page 125: ...Note ...