3. TROUBLE SHOOTING
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START
No
Check next step
Yes
Check TP1
+VPWR is OK?
The Problem may be Logic part
Refer to Logic trouble shoot
The Problem may be Logic part
Refer to Logic trouble shoot
The Problem may be Logic part
Refer to Logic trouble shoot
Check U1000 Physical Damage or
soldering condition
No
No
No
Yes
Yes
Check TP2
1.2V ≤ TP2 ?
Yes
Check TP3
0.2V ≤ TP3 ≤ 1.267V ?
Check TP4
0.35V ≤ TP4 ≤ 3.55V ?