LG -D175F Service Manual page 97

3.3.2.4 Checking RF Flow(SAW filter)
Check TP1(L1105) for 1800/1900band at FL1100
Check if there is any major difference referring
To Figure 3.1.1(b) Is any signal detected at that
SAW filter is OK. Replace main B/D.
LGE Internal Use Only
START
point?
Yes
No
Replace FL1100
Yes
To Figure 3.1.1(b) Is any signal detected at that
CCheck C1105, L1106
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3. TROUBLE SHOOTING
point
No
Only for training and service purposes