4. TROUBLE SHOOTING
- 52 -
Check C537,C531
Check whether Ant SW
Set as RX mode
RRefer to Table 4-2
Yes
VC1 :Low
VC2 :Low
Check SW500 Pin ANT,RF
with RF Cable connected.
Open
Yes
Changing SW500
Check SW500 Pin ANT,RF
with No RF Cable Connected
Short
Yes
Changing SW500
For these 2 test case,
No Call connection is needed
No
No
Changing the Board.
Check RF Level of
FL500.10 (for GSM) &
FL500.1(for DCS)
Ant SW & Mobile SW is OK
See next Page to check
Rx IQ Signal
Pin10 : ~ -62dBm
Pin 1 : ~ -63dBm
No
Changing FL500
Yes
No
For this RF Level test case,
RX Stand alone Mode is needed
refer to chapter 11
ANT SW
EGSM, DCS RX
VC1
VC2
0
0
DCS TX
EGSM TX
0
1
0
1
Checking Flow
Table 4-2
Содержание C2100
Страница 1: ...Service Manual Model C2100 Service Manual C2100 P N MMBD0048201 Date April 2005 Issue 1 0 ...
Страница 54: ...4 TROUBLE SHOOTING 55 4 2 TX Trouble SW500 U503 X500 FL500 U501 U505 5 4 1 3 2 Test Points Figure 4 7 ...
Страница 70: ...4 TROUBLE SHOOTING 71 4 7 MIC Trouble Soldering Check U203 C225 C224 C230 Test Points Figure 4 18 ...
Страница 76: ...4 TROUBLE SHOOTING 77 4 10 KEY backlight Trouble Test Points Figure 4 21 ...
Страница 104: ... 105 8 PCB LAYOUT ...
Страница 105: ... 106 8 PCB LAYOUT ...
Страница 113: ...10 STAND ALONE TEST 114 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Страница 117: ...Note 118 ...
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