4-3-6 Checking Ant SW & Mobile SW
4. TROUBLE SHOOTING
- 72 -
For these 2 test case,
No Call connection is needed
Check CN401 Pin 1 with
RF Cable connected.
Open
Yes
Changing CN401
Check CN401 Pin 1&2
with No RF Cable Connected
Short
Yes
Changing CN401
No
No
Check C448, C445
Check whether Ant SW
Set as TX mode
♦
Refer to Graph 4-10,11
♦
Refer to Table 4-1
Yes
Check VC1, VC2
Check C448,
C445 Is Set
for TX Mode
♦
Refer to
Table 4-1
Check RF Level of
FL401 Pin 5 (for GSM)
& Pin 3(for DCS)
Pin5 : ~33.5dBm
Pin 3 : ~31.5dBm
No
Yes
No
Changing board
VC1(C445) VC2(C448)
0
0
ANT SW
EGSM TX
DCS TX
EGSM, DCS RX
0
1
0
1
Table 4-2. ANT SW Control Logic
Check RF Level of
U401 Pin 8(connect to
C461)
GSM: ~32.5dBm
DCS : ~29.5dBm
Yes
Go to Next Chapter to
Check other RF Level
Changing FL401
END
For these 2 test case,
TX Stand alone Mode is needed
CN401.1
C445
C448
FL401
C425
CN401.2
Содержание G3100
Страница 32: ... 34 3 TECHNICAL BRIEF Figure 3 20 TX IQ Signal Figure 3 21 RX IQ Signal ...
Страница 40: ... 42 Figure 3 26 1 Voice band circuit diagram Headset Hands free kit part 1 3 TECHNICAL BRIEF ...
Страница 42: ... 44 Figure 3 27 AD6521 circuit diagram 3 TECHNICAL BRIEF ...
Страница 73: ... 75 4 3 8 Receiver RF Level Figure 4 1 Test Points of Rx Level 4 TROUBLE SHOOTING ...
Страница 74: ... 76 4 3 9 Transmitter RF Level Figure 4 2 Test Points of Tx Level 4 TROUBLE SHOOTING ...
Страница 81: ... 83 The Receiver part Circuit Diagram C203 C207 C206 4 TROUBLE SHOOTING ...
Страница 87: ... 89 R202 MIC201 R204 C204 C201 R208 R206 C208 Q203 4 TROUBLE SHOOTING ...
Страница 93: ... 95 Test SIM Connector Check J301 4 TROUBLE SHOOTING ...
Страница 97: ... 99 J201 R240 C234 L201 R241 4 TROUBLE SHOOTING U205 U203 U204 ...
Страница 101: ... 103 CN302 U203 U204 4 TROUBLE SHOOTING ...
Страница 102: ... 104 U205 4 TROUBLE SHOOTING ...
Страница 104: ...5 DISASSEMBLY INSTRUCTION 106 3 Detach the rest components as shown below Figure 5 3 Detaching the rest components ...
Страница 108: ...3 Press Start and Wait until Erase is completed 110 1 Press Start 2 Confirm completion 6 SOFTWARE DOWNLOAD ...
Страница 117: ... 119 9 PCB LAYOUT 9 1 Rear Part ...
Страница 118: ...9 2 Front Part 120 ...
Страница 124: ... 126 11 2 Standalone Test Equipment Setup GSM Test Equipment Power Supply PC JIG RS 232 Cable Phone 11 STAN ALONE TEST ...
Страница 134: ... 137 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 Exploded View ...