4. TROUBLE SHOOTING
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4.10 SIM Detect Trouble
USB Initial sequence of 600V is :
VREG_USIM_2.85V(C429 of PM6650-2M) go to 3.0V -> USIM_CLK,USIM_RST,USIM_DATA
triggered -> USIM IF work(Schematic and place are refer to SIM technical brief)
Start
Work well?
VREG_USIM_2.85V is 3.0V?
USIM_P_CLK is run?
Change the Main board
End
Check J300,
TP_UCLK,TP_UDAT,
VREG_USIM_2.85V
Yes
No
YES
NO
Re-insert the SIM card
Change SIM card
Work well?
End
Yes
No
USIM_P_DATA
(J300 Pin 6)
VREG_USIM_2.85V(J300 Pin 1)
USIM_P_CLK
(J300 Pin 3)
USIM_P_RST
(J300 Pin 2)
Summary of Contents for U310
Page 3: ... 4 ...
Page 20: ...3 TECHNICAL BRIEF 21 ...
Page 33: ...3 TECHNICAL BRIEF 34 Figure 3 5 10 1 Bluetooth system architecture ...
Page 47: ...3 TECHNICAL BRIEF 48 Figure PM6650 2M Functional Block Diagram ...
Page 72: ...4 TROUBLE SHOOTING 73 4 2 SIGNAL PATH WCDMA Tx PATH WCDMA Rx PATH ...
Page 76: ...4 TROUBLE SHOOTING 77 ...
Page 90: ...4 TROUBLE SHOOTING 91 ...
Page 110: ...4 TROUBLE SHOOTING 111 CN501 C537 C538 MSM6250A ...
Page 116: ...4 TROUBLE SHOOTING 117 C216 C217 for MIC serial capacitor MSM6250A ...
Page 119: ...4 TROUBLE SHOOTING 120 Q400 Q401 Q402 VBATT GND ...
Page 149: ... 150 8 pcb layout ...
Page 150: ... 151 8 pcb layout ...
Page 151: ... 152 8 pcb layout ...
Page 152: ... 153 8 pcb layout ...
Page 153: ... 154 ...
Page 160: ...9 Calibration RF Auto Test Program 161 9 3 1 Example for Calibration Click START U310 ...
Page 163: ... 164 ...
Page 187: ...Note ...
Page 188: ...Note ...