LG LG-K430DSF - Page 31

31
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3. TROUBLE SHOOTING
3.6 WCDMA RF PART
3.6.2 Checking RF Signal RX path(SW, WCDMA B1)
Checking Flow
START
Main
Top
Image
TP2
Check TP1 Signal exist?
Check
SW1001
NO
Soldering
U1001
TP1
YES
Check TP2 Signal exist?
Check
U1001
NO
Soldering
Circuit Diagram
YES
Check next step
TP1
TP2