LG D337 - Page 39

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3.2.1.3 Checking B1/B2/B5/B8 TX PA
START
Replace Main B/D
Check
TP1 at U1602(B1),
U1600(B2/B5/B8)
Check if there is any major dierence referring
To Figure 4.2.1.4 Is it similar ?
Check
TP2 at U1602(B1),
U1600(B2/B5/B8)
Check if there is any major dierence referring
To Figure 4.2.1.4 Is it similar ?
Check TP3 at U1602(B1), U1600(B2/B5/B8)
Whether it is higher than 1.5V
Check anything point
The Problem may be Logic part
Refer to Logic troubleshoot
PAM circuits OK. See next page
YES
YES
YES
NO
NO
NO