- 49 -
4. TROUBLE SHOOTING
4.3.6 Checking Antenna Switch & Mobile Switch
Figure 4-15
SW400.ANT
SW400.RF
FL400.5
FL400.3
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
VC 1
VC2
0
0
ANT SW
DCS TX
EGSM TX
EGSM, DCS RX
0
1
0
1
Table 4-3.
Check SW400.ANT, RF
with RF Cable connected.
Yes
Changing SW400
Check SW400.ANT, RF
with RF Cable disconnected
Yes
Changing CN401
No
No
Check L405, L404
Check whether Ant SW
Set as TX mode
• Refer to Graph 4-14,15
• Refer to Table 4-3
Yes
Check VC1, VC2
Check RF Level of
FL400 Pin 5 (for GSM)
& Pin 3 (for DCS)
Pin5 : ~29.5dBm
Pin 3 : ~26.5dBm
Open
Short
No
Yes
No
Changing board
Go to 4.3.5 Checking
PAM control signal
END
For the test,
TX Stand alone Mode is needed.
Refer to chapter 00 (PL=7 for
GSM, PL=2 for DCS)
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 ...