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4. TROUBLE SHOOTING
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4.5.1 Checking VCXO Block
Refer to 4.3
4.5.2 Checking Ant. SW module
Refer to 4.4
4.5.3 Checking RF TX Level
TP
1
TP
2
TP
3
TP4
Test Point (RF TX Level)
WCDMA
GSM/DCS/PCS
1805-1880 MHz
925-960 MHz
L209
8.2nH
33p
C279
0.01u
C295
15K
R226
2
3
GSM1900_RX
1
GSM900_RX
13
GSM900_TX
9
VC1
VC2
8
5
VCG
VDD
10
WCDMA
4
U207
SFAY0004601
7
ANT
GND1
6
11
GND2
GND3
14
15
GND4
GND5
16
GSM18001900_TX
12
GSM1800_RX
L226
8.2nH
R236
150
D1
D2
D3
D4
G
S
C227
9p
Q200
SI3493DV
ANT200
NFM21PC105B1A3
G1
3
4
G2
1
IN
2
OUT
C289
15nH
L212
R223
0
1
OUT_GSM
9
SW1
11
SW2
3
VB
VC
10
GND1
2
GND2
4
GND3
6
7
GND4
GND5
8
GND6
12
13
GND7
GND8
14
5
OUT_DCSPCS
U210
MQW5V0C869M
R234
24
15
R228
R222
0
R212
270
C239
100p
27p
C642
L504
NA
C228
100p
L229
10nH
GND1
2
GND2
4
GND3
8
GND4
10
GND5
12
GND6
14
1
NC
3
RF_IN
11
RF_OUT
VBIAS
16
15
VCC1A
7
VCC1B
13
VCC2A
9
VCC2B
VCONT
6
5
VREF
SMPY0008201
U204
17
BGND
1p
C283
OUT
FL204
EFCH1950TDC1
G1
2
G2
5
G3
3
IN
1
4
NA
NA
C638
C280
68p
C299
22nH
L211
4.7u
C282
C305
0.01u
C297
100u
15p
C304
C224
6p
VBATT
17
VCC1A
2
VCC1B
6
C284
27p
DCS_PCS_OUT
15
18
ENABLE
5
GND1
7
GND2
GND3
8
9
GND4
GND5
10
12
GND6
GND7
13
14
GND8
16
GND9
GSM_IN
4
GSM_OUT
11
PGND
21
RSVD_GND
19
20
VAPC
U209
SKY77328
1
BS
3
DCS_PCS_IN
12p
C249
R214
0
22nH
L216
0
R224
RF200
KMS-507
ANT
G1
G2
RF
R225
100
C242
0.1u
C286
0.1u
RX
TX
DMF1950IHC
U202
ANT
GND
100p
C229
220
R235
C255
6p
100p
C277
C298
15p
22p
C293
L503
NA
L215
7.5nH
270
R229
G1
2
G2
5
IN
1
O1
3
O2
4
FL201
B7837
100p
C281
100
R227
100p
C285
7.5nH
L214
R233
200
0.01u
C303
100u
C296
R232
51
C235
0.1u
R221
2.2nH
10u
C259
47p
C292
L213
15nH
UMC4N
2
4
5
3
1
Q507
G1
2
G2
5
IN
1
O1
3
O2
4
FL202
B7844
PA_FET_N
VREG_RFTX_2.85V
+VPWR
VREG_RFRX_0_2.85V
VREG_PA
TX_AGC_ADJ
ANT_SEL2
ANT_SEL1
ANT_SEL0
GSM_PA_RAMP
GSM_PA_EN
GSM_PA_BAND
+VPWR
TP1
TP2
TP3
TP4
Содержание U8210
Страница 22: ...3 TECHNICAL BRIEF 23 Figure 3 2 1 1 RTR6250 IC Functional Block Diagram ...
Страница 37: ...3 TECHNICAL BRIEF 38 Figure 3 5 12 1 Bluetooth system architecture ...
Страница 110: ...4 TROUBLE SHOOTING 111 USB_D USB_D USB_VBUS X100 48M 48MHz ...
Страница 115: ...4 TROUBLE SHOOTING 116 LCD Control data flow ...
Страница 117: ...4 TROUBLE SHOOTING 118 LCD Control data flow ...
Страница 122: ...4 TROUBLE SHOOTING 123 TR400 ...
Страница 124: ...4 TROUBLE SHOOTING 125 FLASH_ON from Main Bíd PM6650 CN1 Flash LED ...
Страница 127: ...4 TROUBLE SHOOTING 128 FB503 CN500 FB502 CN2 CN1 ...
Страница 129: ...4 TROUBLE SHOOTING 130 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Страница 131: ...4 TROUBLE SHOOTING 132 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Страница 133: ...4 TROUBLE SHOOTING 134 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Страница 135: ...4 TROUBLE SHOOTING 136 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Страница 137: ...4 TROUBLE SHOOTING 138 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Страница 139: ...4 TROUBLE SHOOTING 140 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Страница 141: ...4 TROUBLE SHOOTING 142 MIC Contact C404 C401 ...
Страница 143: ...4 TROUBLE SHOOTING 144 C115 Head_Phone Input Pin 2 3 C102 CN304 R624 ...
Страница 146: ...4 TROUBLE SHOOTING 147 Receptacle 4 6V 4 6V ...
Страница 151: ...5 BLOCK DIAGRAM 152 Top Side ...
Страница 152: ...5 BLOCK DIAGRAM 153 Bottom Side ...
Страница 154: ...6 DOWNLOAD 155 It is ready for downloading ...
Страница 160: ...6 DOWNLOAD 161 6 Click on Download to download ...
Страница 165: ...6 DOWNLOAD 166 Downloading the Module image Finally Download has been complete ...
Страница 168: ...6 DOWNLOAD 169 When you meet the NV Restore error Connect to the phone ...
Страница 170: ...6 DOWNLOAD 171 Select the proper file and click on Restore Reading the NV file and restore NV ...
Страница 200: ... 201 9 PCB LAYOUT ...
Страница 201: ... 202 9 PCB LAYOUT ...
Страница 202: ... 203 9 PCB LAYOUT U8210 KEYPAD SPEY0032001 1 1 TOP ...
Страница 203: ... 204 9 PCB LAYOUT ...
Страница 204: ... 205 9 PCB LAYOUT ...
Страница 206: ... 207 ...
Страница 207: ... 208 ...