4.6.1 Checking VCO Block
Test Point (TXVCO Level)
4. TROUBLE SHOOTING
- 88 -
TP1
TP3
TP4
TP6
TP5
TP2
(2012)
(PPS)
FB1000
24
R1020
C1051
0.1u
R1015
51
0.1u
C1038
C1053
15p
VC
9
2
GND1
GND2
4
6
GND3
7
GND4
11
GND5
GND6
12
OUT1
5
OUT2
1
10
SW1
8
SW2
VB
3
MQW6V0C869M
X1000
100p
C1039
C1034
1000p
24
R1008
100ohm
R1016
200
R1012
C1029
10u
100ohm
R1019
150
R1013
C1043
10u
C1035
22n
C1050
33p
R1009
82
200
R1022
15p
C1052
150
R1018
120p
C1033
R1014
47
VREG_RFTX_2.85V
GSM_TX_VCO_0_EN_N
GSM_TX_VCO_1_EN_N
VREG_RFTX_2.85V
Schematic of RF TXVCO
TP5
TP1
TP4
TP6
TP2
TP3
Summary of Contents for U310
Page 3: ... 4 ...
Page 20: ...3 TECHNICAL BRIEF 21 ...
Page 33: ...3 TECHNICAL BRIEF 34 Figure 3 5 10 1 Bluetooth system architecture ...
Page 47: ...3 TECHNICAL BRIEF 48 Figure PM6650 2M Functional Block Diagram ...
Page 72: ...4 TROUBLE SHOOTING 73 4 2 SIGNAL PATH WCDMA Tx PATH WCDMA Rx PATH ...
Page 76: ...4 TROUBLE SHOOTING 77 ...
Page 90: ...4 TROUBLE SHOOTING 91 ...
Page 110: ...4 TROUBLE SHOOTING 111 CN501 C537 C538 MSM6250A ...
Page 116: ...4 TROUBLE SHOOTING 117 C216 C217 for MIC serial capacitor MSM6250A ...
Page 119: ...4 TROUBLE SHOOTING 120 Q400 Q401 Q402 VBATT GND ...
Page 149: ... 150 8 pcb layout ...
Page 150: ... 151 8 pcb layout ...
Page 151: ... 152 8 pcb layout ...
Page 152: ... 153 8 pcb layout ...
Page 153: ... 154 ...
Page 160: ...9 Calibration RF Auto Test Program 161 9 3 1 Example for Calibration Click START U310 ...
Page 163: ... 164 ...
Page 187: ...Note ...
Page 188: ...Note ...