LG D337 - Page 64

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Check TP1(C1101) at U1100
Check if there is any major dierence referring
To Figure 4.2.1.4 Is any signal detected at
that point?
Check TP2 at U1100
Check if there is any major dierence referring
To Figure 4.2.1.4 Is any signal detected at
that point?
Check TP3 at U1100
Do these be followed by logic table for each band?
START
Replace Main B/D
Yes
Yes
Yes
No
No
No
Check anything point
Replace U1100
The Problem may be Logic part
Refer to Logic troubleshoot
3.4.1.3 Checking RF signal path (FEM)