LG -D385 Service Manual page 122

3.4.1.3 Checking RF signal path (Tx Module)
START
Check TP2(C1002) at U1000
Check if there is any major difference referring
To Figure 3.1.1(b). Is any signal detected at that
point?
Check TP1(R1004) at U1000
Check if there is any major difference referring
To Figure 3.1.1(c). Is any signal detected at that
point?
TX module is OK. Replace Main B/D
LGE Internal Use Only
No
Yes
No
Yes
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3. TROUBLE SHOOTING
Check C1001, L1001, L1000
Is any DC signal detected at that points?
Yes
Replace U1000
The Problem may be Logic part
Refer to Logic troubleshoot
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Only for training and service purposes
No