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3. TROUBLE SHOOTING
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START
Check TP2
Signal exist?
Check TP3
Signal exist?
Check TP4/5
Signal exist?
Check TP1
Signal exist?
Check FL1106 Soldering
Check U1100 Soldering
Replace U1500
Check FL1105 Soldering
No
No
No
No
Yes
Yes
Yes
Yes
Check next step