3. TROUBLE SHOOTING
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START
No
No
Check next step
Check TP1 +VPWR OK?
Check TP2 0.5V≤TP2≤4.2V?
The Problem may be Other part
Check Logic part
Check DC-DC Power Block
Refer to 3.3
The Problem may be Other part
Check Logic part
No
Yes
Check High Level
of each mode ?(1.4V≤TP ≤3.0V)
Check TP3
with Control Logic in each mode
Refer Next page
Yes
Yes