LG LG-K430DSF - Page 55

3. TROUBLE SHOOTING
55
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START
Check TP1
Check
Signal is over 21dBm?
NO
SW1002
Soldering
YES
Check TP2
Signal is over 21dBm?
NO
Check U1001
Soldering
YES
Check next step
3.7 LTE RF PART
3.7.12 Checking RF Signal TX path(SW, LTE B7/B28)
Checking Flow
Main
Image
TP1 TP2
Circuit Diagram
TP1
U1001
TP2
TP2
TP1