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MX8550
4.2.1.4 Check DCN RF Tx SAW
Test Point
Test Point
F104
RF_IN
Checking Flow
Checking Flow
Start
Check pin1, 3
at F104. Referring to
Figure 4.2.1.5.
Is it similar?
NO
Replace F 104
LG Electronics Inc.
RF_OUT
RF Tx SAW is OK
YES
Circuit Diagram
Circuit Diagram
TP2
Waveform
Waveform
RF_IN fed up with CW signal
RF_IN
RF_OUT
Figure 4.2.1.5
TP1
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