4.2.4 Checking Antenna Switch & Mobile Switch
- 40 -
4. TROUBLE SHOOTING
VC1
VC2
0
0
ANT SW
DCS TX
EGSM TX
EGSM, DCS RX
0
1
0
1
Check L404, L405
Check whether Ant SW
Set as RX mode
• Refer to Table 4-2
Yes
VC1: Low
VC2: Low
Check SW400 Pin ANT, RF
with RF Cable connected.
Open
Yes
Changing SW400
Check SW400 Pin ANT, RF
with No RF Cable Connected
Short
Yes
Changing SW400
For these 2 test case,
No Call connection is needed
No
No
Changing the Board.
Check RF Level of
FL400.10 (for GSM) &
FL400.1 (for DCS)
Ant SW & Mobile SW is OK.
See next Page to check
Rx IQ Signal.
Pin10 : ~ -62dBm
Pin 1 : ~ -63dBm
No
Changing FL400
Yes
No
For this RF Level test case,
RX Stand alone Mode is needed
refer to chapter 11
Table 4-2.
SW400.ANT
SW400.RF
FL400.10
FL400.1
L405 (VC1)
L404 (VC2)
C410
22p
8
ANT
1
DCS_RX
DCS_TX
3
EGSM_RX
10
EGSM_TX
5
GND1
4
GND2
6
GND3
7
GND4
9
GND5
12
GND6
13
14
GND7
VC1
11
VC2
2
SHS-C090DR
FL400
27p
C431
C430
10p
ANT
G1
G2
RF
KMS-507
SW400
10p
C434
C433
3.3p
33nH
L405
33nH
L404
ANT_SW2
ANT_SW1
Figure 4-6.
Содержание C3100
Страница 1: ...Service Manual Model C3100 Service Manual C3100 P N MMBD0033001 Date June 2004 Issue 1 0 ...
Страница 51: ...Graph 4 15 EGSM TX 50 VCX VC2 VCX VC2 4 TROUBLE SHOOTING Graph 4 14 DCS TX ...
Страница 67: ...5 DISASSEMBLY INSTRUCTION Figure 5 1 Figure 5 2 66 5 DISASSEMBLY INSTRUCTION ...
Страница 68: ... 67 5 DISASSEMBLY INSTRUCTION Figure 5 3 Figure 5 4 ...
Страница 69: ... 68 Figure 5 5 5 DISASSEMBLY INSTRUCTION ...
Страница 70: ... 69 5 DISASSEMBLY INSTRUCTION Figure 5 6 Figure 5 7 1 3 2 4 1 2 3 ...
Страница 71: ... 70 Figure 5 8 Figure 5 9 5 DISASSEMBLY INSTRUCTION 4 2 3 1 2 1 ...
Страница 72: ... 71 5 DISASSEMBLY INSTRUCTION Figure 5 10 ...
Страница 83: ... 82 7 BLOCK DIAGRAM 7 BLOCK DIAGRAM Power supply ...
Страница 90: ... 89 9 PCB LAYOUT 9 PCB LAYOUT ...
Страница 91: ... 90 9 PCB LAYOUT ...
Страница 98: ... 97 11 3 HW Test Software for Standalone Test Setup 11 STAND ALONE TEST ...
Страница 100: ... 99 Tx Stand alone Test Setting 11 STAND ALONE TEST ...
Страница 102: ... 101 Rx Stand alone Test Setting 11 STAND ALONE TEST ...
Страница 104: ... 103 12 3 Equipment Setup Figure 12 1 Equipment Setup 12 AUTO CALIBRATION ...
Страница 107: ... 106 12 AUTO CALIBRATION ...
Страница 108: ... 107 13 EXPLODED VIEW REPLACEMENT PART LIST 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 Exploded View ...
Страница 109: ... 108 13 EXPLODED VIEW REPLACEMENT PART LIST ...