LG LG-K430DSF - Page 20

20
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3. TROUBLE SHOOTING
START
Check TP1 Signal exist?
Check
SW1002
NO
Soldering
YES
Check TP2 Signal exist?
NO
Check
U1001
Soldering
YES
Check next step
3.5 GSM RF PART
3.5.2 Checking RF Signal RX path(SW, GSM850/900)
Checking Flow
Main
Top
Image
TP1 TP2
TP1
Circuit Diagram
U1001
TP2
TP1
TP2