LG LG-K430DSF - Page 45

3. TROUBLE SHOOTING
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3.7 LTE RF PART
3.7.4 Checking RF Signal RX path(SW, LTEB7/28)
Checking Flow
Main
Top
Image
TP1
TP2
Circuit Diagram
TP1
TP2
START
Check TP1 Signal exist?
NO
Check
SW1002
Soldering
YES
Check TP2 Signal exist?
NO
Check U1001
Soldering
YES
Check next step
TP1
U1001
TP2