4. TROUBLE SHOOTING
- 88 -
4.6.3 Checking RF Rx Level
Rev.1.2
ANT100
WFL-R-SMT10
ANT
G1
G2
G3
56p
C100
100nH
L101
C102
NA
ANT
G1
G2
RF
KMS-512
SW100
L100
0.5p
0
R100
3
VC1
14
13
VC2
12
ANT
19
1
GSM1800RX1
GSM1800RX2
2
FL100
ANT_SEL0
ANT_SEL1
Rev. 1.0
20dB
Rev. F
C175
22u
R121
2.7nH
L117
1nH
C160
22p
FL104
ANT
2
1
GND1
GND2
4
8
GND3
GND4
9
GND5
6
GND6
3
7
RX
5
TX
SAYZY1G95EB0B00
EF
12p
C174
C180
NA
3.3p
C162
L125
NA
C161
2.7p
2
4
3
Q100
SCDY0003402
50OHM
4
3
COUP
2
IN
1
OUT
U103
100p
C186
C177
100p
C184
1.8nH
2p
L119
100p
C183
0.75p
C163
C181
1.5nH
C176
0.01u
3nH
L118
3nH
L120
6.8nH
C165
0.01u
C178
EFCH2140TDE1
G1
2
G2
5
IN
1
O1
3
O2
4
3
GND2
6
7
GND3
9
GND4
GND5
11
2
RFIN
RFOUT
8
VCC1
1
10
VCC2
4
VMODE
VREF
5
FL102
AWT6277R
U104
GND1
27p
L124
0
R120
C185
0.75p
33p
C182
8.2nH
C169
C159
6.8nH
L123
8.2nH
+VPWR
VDD_RX
WLNA_OUT
TP1
TP2
TP3
Vbias
TP4
Содержание U970
Страница 1: ...Date April 2007 Issue 1 0 Service Manual Model U970 KU970 Service Manual U970 KU970 ...
Страница 3: ... 4 ...
Страница 20: ...3 TECHNICAL BRIEF 21 Fig 1 2 RTR6275 RX feature ...
Страница 23: ...3 TECHNICAL BRIEF 24 Figure 1 4 RTR6275 IC functional block diagram WCDMA_2100_TX WCDMA_2100_RX ...
Страница 28: ...3 TECHNICAL BRIEF 29 Figure1 7 PM6650 Block Diagram ...
Страница 41: ...3 TECHNICAL BRIEF 42 Table 1 1 Summary of MSM6280 device features ...
Страница 45: ...3 TECHNICAL BRIEF 46 Figure 1 1 PM6650 Functional Block Diagram ...
Страница 76: ...4 TROUBLE SHOOTING 77 4 1 RF CRF Component TOP SIDE BOTTOM SIDE 4 TROUBLE SHOOTING ...
Страница 81: ...4 TROUBLE SHOOTING 82 Check C412 of PMIC U400 Check R214 of MSM U200 ...
Страница 83: ...4 TROUBLE SHOOTING 84 Logic Table of the FEM ...
Страница 89: ...4 TROUBLE SHOOTING 90 4 7 Checking GSM Block ...
Страница 91: ...4 7 3 Checking RF Tx level 4 TROUBLE SHOOTING 92 ...
Страница 94: ...4 TROUBLE SHOOTING 95 ...
Страница 100: ...4 TROUBLE SHOOTING 101 R403 Q402 Q401 Q400 Charging part Main PCB Front ...
Страница 103: ...4 TROUBLE SHOOTING 104 Q400 X 200 USB part 1 Main PCB Front U503 USB part 2 Main PCB Rear ...
Страница 112: ...4 TROUBLE SHOOTING 113 CN601 CN701 CN700 ...
Страница 115: ...4 TROUBLE SHOOTING 116 C500 C501 R501 R502 ...
Страница 117: ...4 TROUBLE SHOOTING 118 SPK Audio Amplifier Analog Switch ...
Страница 119: ...4 TROUBLE SHOOTING 120 MIC800 R507 C520 ...
Страница 121: ...4 TROUBLE SHOOTING 122 R303 Ear_Sense_N C210 MIC Input ...
Страница 141: ...5 DOWNLOAD 142 ...
Страница 147: ...5 DOWNLOAD 148 Read IMEI BT address from UE 2 Step 4 Check IMEI and Bluetooth address ...
Страница 158: ...6 BLOCK DIAGRAM 159 Table 2 1 RF Block Component ...
Страница 163: ...6 BLOCK DIAGRAM 164 6 2 4 Placement Top Side ...
Страница 164: ...6 BLOCK DIAGRAM 165 Bottom Side ...
Страница 165: ... 166 ...
Страница 175: ... 176 8 PCB LAYOUT U970 KU970 ...
Страница 176: ... 177 8 PCB LAYOUT U970 KU970 ...
Страница 177: ... 178 8 PCB LAYOUT U970 KU970 ...
Страница 178: ... 179 8 PCB LAYOUT U970 KU970 ...
Страница 179: ... 180 8 PCB LAYOUT ...
Страница 180: ... 181 8 PCB LAYOUT ...
Страница 181: ... 182 ...
Страница 187: ... 188 ...
Страница 189: ... 190 ...
Страница 209: ...Note ...
Страница 210: ...Note ...