4. TROUBLE SHOOTING
- 64 -
4.12 SIM Detect Trouble
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
J500 = 2.85V ?
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 18 of
U301 = 2.85V ?
No
Check the soldering
condition of J500.
Re-solder J500
Yes
No
Yes
Check the contact between
J500 and SIM card.
Replace J500
No
Yes
The SIM is malfunctioned.
Change the SIM.
Yes
Does it work properly after
re-downloading SW ?
Change
the main
board.
SIM will be detected.
No
No
Yes
JJ550000
PPIIN
N 11
Figure 4-27
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Summary of Contents for G1610
Page 1: ...Service Manual Model G1610 Service Manual G1610 P N MMBD0045701 Date February 2005 Issue 1 0 ...
Page 52: ...4 TROUBLE SHOOTING 51 Graph 4 14DCS TX Graph 4 15EGSM TX VC1 VC2 VC1 VC2 VC1 VC2 VC1 VC2 ...
Page 70: ...5 DISASSEMBLY INSTRUCTION 69 5 DISASSEMBLY INSTRUCTION Figure 5 1 Figure 5 2 ...
Page 71: ...5 DISASSEMBLY INSTRUCTION 70 Figure 5 3 Figure 5 4 ...
Page 72: ...5 DISASSEMBLY INSTRUCTION 71 Figure 5 5 ...
Page 73: ...5 DISASSEMBLY INSTRUCTION 72 Figure 5 6 1 3 2 4 Figure 5 7 1 2 3 ...
Page 74: ...5 DISASSEMBLY INSTRUCTION 73 Figure 5 8 4 2 3 1 2 1 Figure 5 9 ...
Page 75: ...5 DISASSEMBLY INSTRUCTION 74 Figure 5 10 ...
Page 86: ...7 BLOCK DIAGRAM 85 7 BLOCK DIAGRAM Power supply ...
Page 87: ... 86 ...
Page 108: ...12 AUTO CALIBRATION 107 12 3 Equipment Setup Figure 12 1 Equipment Setup ...
Page 111: ...12 AUTO CALIBRATION 110 ...
