LG -D175F Service Manual page 61

3.2.1.4 Checking RF signal path (DPX)
Check TP1(C1607) at FL1600
Check if there is any major difference referring
To Figure 3.1.1(b) Is any signal detected at that
Is any signal detected at that point?
DPX is OK. See next page to check PAM
1.950GHz
LGE Internal Use Only
START
point?
Yes
Yes
Figure 3.1.1(b)
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3. TROUBLE SHOOTING
No
Check L1600
No
Replace FL1600
TP1
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