4. TROUBLE SHOOTING
- 75 -
4.13 Headphone Trouble
Check Points
-18pin IO connector
-Passive Parts slodering Status
TEST POINT
CIRCUIT DIAGRAM
FOR RADIO
12,13 : CHG
8 : JACK_D
(50V,C,NP0)
9,10 : BATT
4 : EAR_L
(10V,Z,Y5V)
FOR RADIO
I/O CONNECTOR
11 : R/ON
5 : EAR_R
2 : AUDIO
(50V,J,NP0)
(50V,J,NP0)
(2012)
1608
7 : RXD
(TOL:0.25P)
EAR_MIC
6 : TXD
39p
C325
VMIC
NA
R322
2V8_VIO
0.1u
C317
100K
R324
2V8_VIO
C336
3p
C326
39p
2V8_VIO
10p
C322
21
22
3
4
5
6
7
8
9
HSEJ-18S04-25R
1
10
11
12
13
14
15
16
17
18
19
2
20
100K
CN301
R323
18p
C337
C324
10u
2V8_VIO
VCHARGE
1800
FB301
C318
NA
10u
C319
L300
270nH
1
2
3
VBAT
CN302
R316
1.5K
C328
56p
R321
100K
C323
10u
R318
2.2K
39p
C321
C327
10u
FB302
1800
R332
0
C320
0.1u
FB300
1800
VBAT
BATT_TEMP
DSR
HS_DET
AUXOP_FML
AUXOP_FMR
RPWRON
RXD
TXD
FM_ANT
AUXIN
AUXIP
CN301
FB301
C321
C322
FB302
FB300
Содержание KG270
Страница 1: ...Date April 2007 Issue 1 0 Service Manual Model KG270 MG160 Service Manual KG270 MG160 ...
Страница 3: ... 4 ...
Страница 81: ...5 DOWNLOAD 82 5 DOWNLOAD 5 1 Download Setup Configure system like figure 5 1 Figure 9 1 Download Setup ...
Страница 87: ... 88 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM ...
Страница 92: ... 93 8 PCB LAYOUT ...
Страница 93: ... 94 8 PCB LAYOUT ...
Страница 104: ... 105 10 CALIBRATION 10 2 3 Click SETTING Memu 10 2 4 Setup Ezlooks menu such as the following fugure KG278 ...
Страница 106: ...10 CALIBRATION 107 10 2 7 Select MODEL 10 2 8 Click START for RF calibration 10 2 9 RF Calibration finish KG278 ...
Страница 107: ...10 CALIBRATION 108 10 2 10 Calibration data will be saved to the following folder ...
Страница 113: ... 114 ...
Страница 124: ...Note ...
Страница 125: ...Note ...