3. TROUBLE SHOOTING
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3.7.3.4 Checking LTE PAM DC Power Circuit (B28 A&B)
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TP2
TP1
U1653
U1601
Check TP1 +1V8_VREG OK?
Check TP2 0.5V≤TP2≤4.2V?
START
Check next step
Yes
Yes
No
No
The Problem may be Other part
Check Logic part
Check DC-DC Power Block Refer to 3.3