3. TROUBLE SHOOTING
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START
No
No
No
No
No
No
Not good
OK?
Check next step
Check TP1 Signal exist?
Check TP2 Signal exist?
Check TP3/TP4 Signal exist?
Check TP5 Signal exist?
Check TP6 Signal exist?
Check TP7 Signal exist?
Check Transceiver physical damage
or soldering condition
Check SW2002 Soldering
Check FL2001 Soldering
Check FL2006 Soldering
Check FL2004 Soldering
Check FL2003 Soldering
Check FL2010 Soldering
Replace U2002
Yes
Yes
Yes
Yes
Yes
Yes