LG LG-D175F - Page 38

3. TROUBLE SHOOTING
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Check TP1(C1607) at FL1600
Check if there is any major dierence referring
To Figure 3.1.1(b) Is any signal detected at that
point?
START
All WCDMA_B1 Rx check is complete.
If the phone sill do not work ,replace main board
Check L1600, C1607, C1608
Replace FL1600
Yes
Yes
Is any signal detected at that point?
No
No
3.1.1.4 Checking RF signal path (Duplexer)
2.140GHz
TP1
Figure 3.1.1 (b)