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MX8550
4.2.2.4 Check DCN RF Tx SAW
Test Point
Test Point
RF_OUT
F103
RF_IN
Checking Flow
Checking Flow
Start
Check pin1, 4
at F103. Referring to
Figure 4.2.2.5.
Is it similar?
NO
Replace F 103
LG Electronics Inc.
RF Tx SAW is
OK
YES
Circuit Diagram
Circuit Diagram
TP2
Waveform
Waveform
RF_IN fed up with CW signal
Figure 4.2.2.5
TP1
RF_IN
RF_OUT
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