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3.2.1.3 Checking B1/ B5 TX PA
Check TP1 at U103/U104
Check if there is any major difference referring
To Figure 3.2.1.4 Is it similar ?
Check TP2 at U103/U104
Check if there is any major difference referring
To Figure 3.2.1.4 Is it similar ?
Check TP3 at U103/U104
Whether it is higher than 1.5V
Replace U103/U104
LGE Internal Use Only
START
Yes
No
Yes
No
Check anything point
Yes
PAM circuits OK See next page
No
The Problem may be Logic part
Refer to Logic troubleshoot
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3. TROUBLE SHOOTING
Only for training and service purposes
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