4. TROUBLE SHOOTING
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Test Point (Bluetooth Block )
1608
NA
C521
L500
2.7nH
TP500
C526
2.2u
33p
C516
C524
1000p
R505
0
1.8p
C612
VDD_A
14
VDD_MSM
12
XTAL_IN
4
RB06A
ANT
16
9
CLK_REF
1
GND1
7
GND2
15
GND3
LDO1
2
3
LDO2
13
NC
RX_BB_TX_BB
8
SBCK
10
11
SBDT
SBST
6
5
SYNC_DET_TX_EN
U502
TP501
C517
0.01u
1u
C527
33p
C519
C514
0.01u
1u
C518
C515
1u
BT_SBCK
BT_SBDT
BT_TX_RX_N
BT_CLK
BT_SBST
VREG_MSMP_2.7V
BT_DATA
TCXO_BT
VREG_BT_2.85V
1000p
C435
5
TC7S04FU
U402
GND
3
2
4
VCC
R409
100K
C430
1000p
TCXO_BT_IN
VREG_BT_2.85V
TCXO_BT
Schematic of Bluetooth RF Block
TP2
TP1
TP5
TP3
TP4
Содержание U890
Страница 1: ...Date April 2006 Issue 1 0 Service Manual Model U890 U890c Service Manual U890 U890c ...
Страница 3: ... 4 ...
Страница 20: ...3 TECHNICAL BRIEF 21 ...
Страница 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram ...
Страница 70: ...4 TROUBLE SHOOTING 71 4 2 SIGNAL PATH ...
Страница 109: ...4 TROUBLE SHOOTING 110 CN600 50pin LCD connector CN901 C907 C911 FB901 FB902 ...
Страница 115: ...4 TROUBLE SHOOTING 116 C226 C227 for MIC serial capacitor ...
Страница 118: ...4 TROUBLE SHOOTING 119 Q400 Q401 Q402 VBATT GND ...
Страница 139: ...Table 2 1 1 RF Block Component 6 BLOCK DIAGRAM 140 ...
Страница 140: ...6 BLOCK DIAGRAM 141 6 2 Interface Diagram U890 Interface Diagram ...
Страница 142: ...6 BLOCK DIAGRAM 143 Top Side ...
Страница 143: ...6 BLOCK DIAGRAM 144 Bottom Side ...
Страница 152: ... 153 8 pcb layout ...
Страница 153: ... 154 8 pcb layout ...
Страница 154: ... 155 8 pcb layout ...
Страница 155: ... 156 8 pcb layout ...
Страница 156: ... 157 8 pcb layout ...
Страница 157: ... 158 8 pcb layout ...
Страница 163: ...9 CALIBRATION 164 9 3 HOT KIMCHI Example Choose_U890 ...
Страница 164: ...9 CALIBRATION 165 Click APPLY button Click START button ...
Страница 165: ...9 CALIBRATION 166 Click Run button to lunch RF AUTOTEST ...
Страница 167: ... 168 ...
Страница 191: ...Note ...
Страница 192: ...Note ...