LG LG-K430DSF - Page 43

3. TROUBLE SHOOTING
43
Copyright ⓒ 2016 LG Electronics. Inc. All right
reserved. Only training and service purposes
http://eduwebcell.blogspot.com/
Image
Main
Top
U1001
TP2
TP1
3.7 LTE RF PART
3.7.2 Checking RF Signal RX path(SW, LTE B3)
Checking Flow
START
Check TP1 Signal exist?
YES
Check
SW1001
NO
Soldering
Check TP2 Signal exist?
Check U1001
NO
Soldering
YES
Check next step
TP1
TP2
Circuit Diagram