2.2 Tx Trouble
Test Point
Checking Flow
START
√
Connect the phone to UART connector
√
Press H/W or F7, then click ‘offline-d’
-Click ‘Band select‘ to CDMA & TX on &Power Amp
On
-Set channel to 384 & AGC :400
√
Spectrum analyzer setting
√
Oscilloscope setting
1. Check
Regulator(PMIC) Circuit
2. Check
VCTCXO Circuit
3. Check
SBI Control Signal
4. Check
RFT6122 Circuit
7. Check
Duplexer & Mobile SW
Circuit
√
Re-download SW, CAL
6. Check
PAM Circuit
Mobile
S/W
Duplexer
PAM
RFT6122
VCTCXO
20
Z3X-BOX.COM
Summary of Contents for LG-MC2670
Page 17: ...LG MC26 70 DCN Mode Graph 2 1 2 1763 04MHz DCN384 14 Z 3 X B O X C O M ...
Page 21: ...LG MC2670 Waveform DP101 Pin 5 Graph 2 1 4 c DP101 Pin 8 Graph 2 1 4 b 18 Z 3 X B O X C O M ...
Page 32: ...LG MC2670 Circuit Diagram 29 Z 3 X B O X C O M ...
Page 55: ...LG MC2670 Appendix Z 3 X B O X C O M ...
Page 56: ...Z 3 X B O X C O M ...
Page 58: ...Z 3 X B O X C O M TX Line RX Line Local Line RD2670 ...
Page 59: ...Z 3 X B O X C O M TX Line RX Line MIC Line SPK Line RD2670 ...
Page 60: ...Z 3 X B O X C O M RD2670 ...
Page 61: ...Z 3 X B O X C O M SPK Line MIC Line RD2670 ...
Page 65: ...Description LG Part No Q ty MAIN PCB SPFY0083001 1 2 PCB Z 3 X B O X C O M ...