2.2.1 Check Regulator(PMIC) Circuit
TEST POINT
Circuit Diagram
Checking Flow
+2.6V_TX
+2.8V_MSMP
+2.85V_TX_REG
+4.2 Vbatt
OK?
U201 Pin E14
TX ON High?
Replace U201
Replace U400
Regulator Circuit is OK
See Next Page to Check
VCTCXO
Check Pin
4, 13, 16, 29
U400
U201
YES
YES
NO
NO
U400
Pin 29
(+2.6V_Tx)
U400
Pin 16
(+2.8V_MSMP)
U400
Pin 4
(+4.2V_Vbatt)
U400
Pin 13
(+2.85V_TX_REG)
21
Z3X-BOX.COM
Содержание LG-MC2670
Страница 1: ...LGE LG Electronics Inc CDMA PORTABLE CELLULAR PHONE LG MC2670 SERVICE MANUAL Z 3 X B O X C O M ...
Страница 17: ...LG MC26 70 DCN Mode Graph 2 1 2 1763 04MHz DCN384 14 Z 3 X B O X C O M ...
Страница 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 ...
Страница 32: ...LG MC2670 Circuit Diagram 29 Z 3 X B O X C O M ...
Страница 33: ...LG MC2670 Figure 2 3 1 PMIC PM6610 FUNCTIONAL BLOCK DIAGRAM 2 3 Logic Part Trouble 30 Z 3 X B O X C O M ...
Страница 55: ...LG MC2670 Appendix Z 3 X B O X C O M ...
Страница 56: ...Z 3 X B O X C O M ...
Страница 58: ...Z 3 X B O X C O M TX Line RX Line Local Line RD2670 ...
Страница 59: ...Z 3 X B O X C O M TX Line RX Line MIC Line SPK Line RD2670 ...
Страница 60: ...Z 3 X B O X C O M RD2670 ...
Страница 61: ...Z 3 X B O X C O M SPK Line MIC Line RD2670 ...
Страница 65: ...Description LG Part No Q ty MAIN PCB SPFY0083001 1 2 PCB Z 3 X B O X C O M ...