Table of Contents
Advertisement
4.2.4 Checking Antenna Switch & Moblie Switch
Figure 4-6
For these 2 test case,
No Call connection is needed
Check SW400 Pin ANT,RF
with RF Cable connected.
Check SW400 Pin ANT,RF
with No RF Cable Connected
Check L404, L405
Check whether Ant SW
Set as RX mode
? Refer to Table 4-2
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
For this RF Level test case,
RX Stand alone Mode is needed
refer to chapter 11
SW400.ANT
SW400.RF
FL400.10
FL400.1
L405 (VC1)
L404
(VC2)
No
Open
Yes
No
Short
Yes
VC1 :Low
No
VC2 :Low
Yes
Pin10 : ~ -62dBm
No
Pin 1 : ~ -63dBm
Yes
- 41 -
SW400
KMS-507
C410
22P
SHS-C090DR
FL400
4
GND1
6
GND2
EGSM_TX
7
GND3
DCS_TX
9
GND4
12
GND5
13
GND6
EGSM_RX
14
GND7
DCS_RX
Changing SW400
Changing SW400
Changing the Board.
Changing FL400
ANT SW
D D C C S S T T X X
E E G G S S M M T T X X
EGSM, DCS RX
4. TROUBLE SHOOTING
5
3
10
1
ANT_SW2
C430
C431
10p
27p
ANT_SW1
C433
C434
3.3p
10p
Table 4-2
VC1
VC2
0
1
1
0
0
0
Advertisement
Table of Contents
