4. TROBULE SHOOTING
- 42 -
4.2.5 Checking SAW Filter
FL401 FL402
Figure 4-7
For the test,
RX Stand alone Mode is needed.
Refer to chapter11
Check RF Level of
Saw Filter Input
For GSM : FL401.1
FL401.1 : ~ -61dBm
Yes
FL401.3: ~ -64dBm
FL402.3: ~ -64dBm
Check RF Level of
Saw Filter Input
For GSM : FL401.3
For DCS : FL402.3
Saw Filter is OK
See next Page to check
Rx IQ Signal
Yes
No
Check the parts are well
Soldered
For GSM : C422
Changing
C422 for GSM
No
Check the parts are well
Soldered
For GSM : L402,C420
For DCS : L403, C425
Yes
Soldering is
OK?
No
Changing
L402, C420for GSM
L403, C425for DCS
Changing FL401
for GSM, FL402
for DCS
G1 O1
G2 O2
IN
FL401
G1 O1
G2 O2
IN
FL401
GPO 11
C422
27P
2 3
5 4
2 3
5 4
EFCH942MTCA7
EFCH1842MTCA7
L402
27nH
L403
7.5nH
C420
1p
C425
1p
C423
1p
C426
1p
Содержание G1610
Страница 1: ...Service Manual Model G1610 Service Manual G1610 P N MMBD0045701 Date February 2005 Issue 1 0 ...
Страница 52: ...4 TROUBLE SHOOTING 51 Graph 4 14DCS TX Graph 4 15EGSM TX VC1 VC2 VC1 VC2 VC1 VC2 VC1 VC2 ...
Страница 70: ...5 DISASSEMBLY INSTRUCTION 69 5 DISASSEMBLY INSTRUCTION Figure 5 1 Figure 5 2 ...
Страница 71: ...5 DISASSEMBLY INSTRUCTION 70 Figure 5 3 Figure 5 4 ...
Страница 72: ...5 DISASSEMBLY INSTRUCTION 71 Figure 5 5 ...
Страница 73: ...5 DISASSEMBLY INSTRUCTION 72 Figure 5 6 1 3 2 4 Figure 5 7 1 2 3 ...
Страница 74: ...5 DISASSEMBLY INSTRUCTION 73 Figure 5 8 4 2 3 1 2 1 Figure 5 9 ...
Страница 75: ...5 DISASSEMBLY INSTRUCTION 74 Figure 5 10 ...
Страница 82: ...6 DOWNLOAD AND CALIBRATION 81 11 Wait until Sending Block is completed 1 Wait Until Sending Block is completed ...
Страница 86: ...7 BLOCK DIAGRAM 85 7 BLOCK DIAGRAM Power supply ...
Страница 87: ... 86 ...
Страница 101: ...11 STAND ALONE TEST 100 11 2 Standalone Test Equipment Setup GSM Test Equipment Power Supply RS 232 Cable PC JIG Phone ...
Страница 108: ...12 AUTO CALIBRATION 107 12 3 Equipment Setup Figure 12 1 Equipment Setup ...
Страница 111: ...12 AUTO CALIBRATION 110 ...
Страница 113: ...13 EXPLODED VIEW REPLACEMENT PART LIST 112 ...