3. TROUBLE SHOOTING
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START
No
No
No
No
OK?
Check next step
Check TP1 Signal exist?
Check TP2/3/4 Signal exist?
Check TP5 Signal exist?
Check TP6 Signal exist?
Check Transceiver physical damage
or soldering condition
Check SW2000 Soldering
Check FL2011 Soldering
Check FL2013 Soldering
Check FL2022 Soldering
Replace U2002
Yes
Yes
Yes
Yes
Not good