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4.12 SIM Detect Trouble
SETTING : Insert the SIM into J301. Connect PIF to the phone, and power on.
START
Does the SIM supports
3V?
Voltage at pin 1 of
J301 = 2.9V ?
Change the SIM and try
again. Does it work
properly?
Change the SIM. Our phone supports 3V SIM only.
Replace U301.
Yes
No
No
Yes
Voltage at pin 19 of
U301 = 2.9V ?
No
Check the soldering
condition of J301.
Re-solder J301.
Yes
No
Yes
Replace J301.
No
Yes
The SIM is malfunctioned.
Change the SIM.
Yes
Does it work properly after
re-downloading S/W ?
Change
the main
board.
SIM will be detected.
No
No
Yes
Check
the contact between
J301 and
SIM card.
4. TROUBLE SHOOTING
Summary of Contents for G3100
Page 32: ... 34 3 TECHNICAL BRIEF Figure 3 20 TX IQ Signal Figure 3 21 RX IQ Signal ...
Page 40: ... 42 Figure 3 26 1 Voice band circuit diagram Headset Hands free kit part 1 3 TECHNICAL BRIEF ...
Page 42: ... 44 Figure 3 27 AD6521 circuit diagram 3 TECHNICAL BRIEF ...
Page 73: ... 75 4 3 8 Receiver RF Level Figure 4 1 Test Points of Rx Level 4 TROUBLE SHOOTING ...
Page 74: ... 76 4 3 9 Transmitter RF Level Figure 4 2 Test Points of Tx Level 4 TROUBLE SHOOTING ...
Page 81: ... 83 The Receiver part Circuit Diagram C203 C207 C206 4 TROUBLE SHOOTING ...
Page 87: ... 89 R202 MIC201 R204 C204 C201 R208 R206 C208 Q203 4 TROUBLE SHOOTING ...
Page 93: ... 95 Test SIM Connector Check J301 4 TROUBLE SHOOTING ...
Page 97: ... 99 J201 R240 C234 L201 R241 4 TROUBLE SHOOTING U205 U203 U204 ...
Page 101: ... 103 CN302 U203 U204 4 TROUBLE SHOOTING ...
Page 102: ... 104 U205 4 TROUBLE SHOOTING ...
Page 117: ... 119 9 PCB LAYOUT 9 1 Rear Part ...
Page 118: ...9 2 Front Part 120 ...
Page 134: ... 137 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 Exploded View ...