4. TROUBLE SHOOTING
- 85 -
4.6.1 Checking VCO Block
TP4
TP5
TP2
TP6
TP3
TP1
Test Point(TXVCO Level)
TX VCO CONTROL LOGIC
HIGH
HIGH
GSM850/900
NO OSCILLATION
LOW
HIGH
SW2
HIGH
LOW
DCS1800/PCS1900
SW1
VREG_MSMP_2.7V
220
R1020
C1066
15p
4.7u
tcc_1608h_9_r
C1062
5.6n
C1045
ECHU1C562JX5
100
33p
C1063
R1018
270
R1021
220
R1017
100
1000p
C1054
R1016
15
C1040
330p
12
GND6
GND7
13
14
GND8
OUT_DCSPCS
5
OUT_GSM
1
SW1
9
SW2
11
VB
3
10
VC
X101
MQW5V0C869M
2
GND1
4
GND2
6
GND3
GND4
7
8
GND5
R1014
15
0.1uF
C1064
270
R1019
100
R1015
C1065
15p
33p
C1043
R1022
51
FB102
+VPWR
0.01u
C1503
VDD_M
43
TX_MOD_CP
40
42
TX_VCO_FB
41
VDDA12
RF
ON
TX
ON
44
SBCK
45
SBDT
SBST
46
82p
C1048
33
R1010
R1012
100
120p
C1039
C1055
100p
G2
1
IN
2
OUT
FL104
NFM21PC105B1A3
G1
3
4
VREG_RFTX_2.85V
D
GSM_TX_VCO_0_EN_N
GSM_TX_VCO_1_EN_N
TX_ON
Schematic of RF TXVCO
TP5
TP1
TP4
TP2
TP6
TP3
Содержание CU500 - Cell Phone
Страница 1: ...Date June 2006 Issue 1 0 Service Manual Model CU500_TU500 Service Manual CU500_TU500 ...
Страница 3: ... 4 ...
Страница 41: ...3 TECHNICAL BRIEF 42 Figure PM6650 Functional Block Diagram ...
Страница 68: ...4 TROUBLE SHOOTING 69 4 1 RF Component Bottom Side 4 TROUBLE SHOOTING ...
Страница 69: ...4 TROUBLE SHOOTING 70 ...
Страница 73: ...4 TROUBLE SHOOTING 74 Check R400 of PMIC U400 Check R223 of MSM U200 ...
Страница 77: ...4 TROUBLE SHOOTING 78 For testing Max power of UMTS 1900MHz is needed ...
Страница 85: ...4 TROUBLE SHOOTING 86 ...
Страница 87: ...4 TROUBLE SHOOTING 88 ...
Страница 91: ...4 TROUBLE SHOOTING 92 ...
Страница 93: ...4 TROUBLE SHOOTING 94 D701 VREG_MSMC VREG_MSME VREG_MSMA VREG_MSMP VREG_TCXO C1133 48Mhz X400 32 768Mhz ...
Страница 95: ...4 TROUBLE SHOOTING 96 R300 Q401 Q400 ...
Страница 98: ...4 TROUBLE SHOOTING 99 Q501 X 200 U505 ...
Страница 105: ...4 TROUBLE SHOOTING 106 CN602 CN1 ...
Страница 107: ...4 TROUBLE SHOOTING 108 C102 C104 R200 R201 ...
Страница 109: ...4 TROUBLE SHOOTING 110 CN602 SPK_LP L N SPK_RP RN AMP block ...
Страница 111: ...4 TROUBLE SHOOTING 112 MIC U303 ...
Страница 113: ...4 TROUBLE SHOOTING 114 Mic input 5 4 2 1 3 6 Headset detect port ...
Страница 129: ...5 DOWNLOAD 130 3 NV Restore error When you meet the NV Restore error ...
Страница 130: ...5 DOWNLOAD 131 Connect to the phone Click on Cancel ...
Страница 135: ...Table 6 1 1 RF Block Component 6 BLOCK DIAGRAM 136 ...
Страница 138: ...6 BLOCK DIAGRAM 139 Top Side ...
Страница 139: ...6 BLOCK DIAGRAM 140 Bottom Side ...
Страница 147: ... 148 8 pcb layout ...
Страница 148: ... 149 8 pcb layout ...
Страница 149: ... 150 8 pcb layout ...
Страница 150: ... 151 8 pcb layout ...
Страница 151: ... 152 ...
Страница 157: ...9 CALIBRATION 158 9 3 HOT KIMCHI Example Choose Exe_Cu500Ag_100 ...
Страница 158: ...9 CALIBRATION 159 Click APPLY button Click START button ...
Страница 161: ... 162 ...
Страница 185: ...Note ...
Страница 186: ...Note ...