LG LG511C Service Manual page 58

LN510
Check if there is any major difference referring
to Fig.4.1.2 (c). Is any signal detected at
Check if there is any major difference referring
to Fig.4.1.2 (d). Is any signal detected at
All PCS Rx check is completed. If the phone still do
Not work, change Main B/D.
LG Electronics Inc.
Start
Check pin2 at U1001.
that point?
Yes
Is any signal detected at
that point?
Yes
Check pin2 at U1003.
that point?
Yes
Is any signal detected at
that point?
Yes
Checking Flow
Checking Flow
No
No
No
No
57/168
Replace Mobile S/W(U1001).
1
Check L1001, L1002.
Replace Quadplexer(U1003).
2
Check L1202,C1202,C1203,
C1211,C1209,L1204.