LG -600 Series Repair Manual page 64

Appendix.
Rx Flow Chart & Solution
5-A) Check Placement of U202, FL1
5-B) Check FL1 Pin 5,7 Using Spectrum Analyzer
Yes
RF Output~ -72dbm ?
5-C) Check U202 Pin 7,9, Using Spectrum Analyzer.
Yes
Goto Block 6 !
GSM Handsets Lab.
RF Output
Pin 9 ~ -55dbm ?
Pin 7 ~ 58dbm ?
No
No
64
Check Soldering
Replace FL1
5-B) Test!!
Replace U202
5-C) Test!!