4.2.4 Check RFT6100 Circuit
Test Point
Circuit Flow
I,Q Level is Appear?
YES
NO
Level (near 1V) is Appear?
NO
Control Signal is OK
See next page to check
PAM Circuit
Check C158,C159
YES
Check U201
Replace U103
Check U103 Pin12
NO
Output signal
CELL is Appear?
YES
Check U103 Pin23
Replace U103
C158,C159
(TX_I, Q)
U103 Pin12
(TX_CP)
U103 Pin23
(CELL_OUT)
Z3X-BOX.COM
Summary of Contents for LG-RD2750
Page 33: ...DCN Mode Graph 4 2 1763 04MHz DCN384 Z 3 X B O X C O M ...
Page 37: ...Waveform DP101 Pin 7 Graph 4 3 c DP101 Pin2 Graph 4 4 c Z 3 X B O X C O M ...
Page 48: ...Circuit Diagram Z 3 X B O X C O M ...
Page 49: ...Figure 4 3 1 PMIC PM6610 FUNCTIONAL BLOCK DIAGRAM 4 3 Logic Part Trouble Z 3 X B O X C O M ...
Page 68: ...RD2750 Block Diagram Z 3 X B O X C O M ...
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