
4. TROUBLE SHOOTING
- 90 -
4.5.5 Check RF Rx Level
TP3
Bias1
B as2
TP4
i
TP1
TP2
Test Point (RF Rx Level)
(1%)
C211
1p
33p
3.9nH
L204
C279
R200
100
22
R203
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
0.1u
C209
ANT200
G1
2
G2
5
IN
1
O1
3
O2
4
FL200
B7728
C213
0.1u
R223
0
C200
1p
R222
0
C207
4.7u
C214
100p
L229
10nH
L203
10nH
1p
C283
12p
C202
47nH
L207
0.1u
C218
C219
4.7u
C284
27p
L202
3.9nH
5.62K
0
R224
R201
RF200
KMS-507
ANT
G1
G2
RF
100p
C205
17
GND_SLUG
R_BIAS
16
7
SBCK
10
SBDT
SBST
8
UMTS_BIAS
3
UMTS_IN
4
11
UMTS_OUT
15
VDDA
VDDM
9
U201
DNC
2
GND1
1
GND2
5
6
GND3
GND4
12
13
GND5
GND6
14
RFL6200
C286
0.1u
RX
TX
DMF1950IHC
U202
ANT
GND
12p
C210
L208
47nH
L205
4.7nH
L206
10nH
100p
C277
2.2nH
L201
100p
C281
100p
C285
C645
0.5p
R221
2.2nH
1p
C215
UMC4N
2
4
5
3
1
Q507
100p
C203
100p
C217
8.2nH
L200
VREG_RFTX_2.85V
VREG_RFRX_0_2.85V
VREG_RFRX_0_2.85V
VREG_MSMP_TCXO
ANT_SEL2
ANT_SEL1
ANT_SEL0
SBCK
SBDT
SBST
TP1
TP2
TP3
Bias1
TP4
Bias2
Summary of Contents for U8210
Page 22: ...3 TECHNICAL BRIEF 23 Figure 3 2 1 1 RTR6250 IC Functional Block Diagram ...
Page 37: ...3 TECHNICAL BRIEF 38 Figure 3 5 12 1 Bluetooth system architecture ...
Page 110: ...4 TROUBLE SHOOTING 111 USB_D USB_D USB_VBUS X100 48M 48MHz ...
Page 115: ...4 TROUBLE SHOOTING 116 LCD Control data flow ...
Page 117: ...4 TROUBLE SHOOTING 118 LCD Control data flow ...
Page 122: ...4 TROUBLE SHOOTING 123 TR400 ...
Page 124: ...4 TROUBLE SHOOTING 125 FLASH_ON from Main Bíd PM6650 CN1 Flash LED ...
Page 127: ...4 TROUBLE SHOOTING 128 FB503 CN500 FB502 CN2 CN1 ...
Page 129: ...4 TROUBLE SHOOTING 130 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Page 131: ...4 TROUBLE SHOOTING 132 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Page 133: ...4 TROUBLE SHOOTING 134 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Page 135: ...4 TROUBLE SHOOTING 136 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Page 137: ...4 TROUBLE SHOOTING 138 R649 CN300 CN2 CN1 U605 C633 R648 C634 R622 R623 ...
Page 139: ...4 TROUBLE SHOOTING 140 C627 Head_set Output Pin 4 5 C626 CN304 R624 ...
Page 141: ...4 TROUBLE SHOOTING 142 MIC Contact C404 C401 ...
Page 143: ...4 TROUBLE SHOOTING 144 C115 Head_Phone Input Pin 2 3 C102 CN304 R624 ...
Page 146: ...4 TROUBLE SHOOTING 147 Receptacle 4 6V 4 6V ...
Page 151: ...5 BLOCK DIAGRAM 152 Top Side ...
Page 152: ...5 BLOCK DIAGRAM 153 Bottom Side ...
Page 154: ...6 DOWNLOAD 155 It is ready for downloading ...
Page 160: ...6 DOWNLOAD 161 6 Click on Download to download ...
Page 165: ...6 DOWNLOAD 166 Downloading the Module image Finally Download has been complete ...
Page 168: ...6 DOWNLOAD 169 When you meet the NV Restore error Connect to the phone ...
Page 170: ...6 DOWNLOAD 171 Select the proper file and click on Restore Reading the NV file and restore NV ...
Page 200: ... 201 9 PCB LAYOUT ...
Page 201: ... 202 9 PCB LAYOUT ...
Page 202: ... 203 9 PCB LAYOUT U8210 KEYPAD SPEY0032001 1 1 TOP ...
Page 203: ... 204 9 PCB LAYOUT ...
Page 204: ... 205 9 PCB LAYOUT ...
Page 206: ... 207 ...
Page 207: ... 208 ...