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3. TROUBLE SHOOTING
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3.6.2.1 Checking WCDMA PAM DC Power&Control Circuit
<Main Top>
TP2
TP1
U1301
Check TP1 +Vbatt 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