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3.4.2.3 Abnormal UNI Operation
Start
Buffer(U2, U3) input
signals are normal?
Yes
Buffer(U2, U3) input
signals are normal?
Yes
CPLD(U1) input is normal?
Yes
CPLD(U1) output is normal?
Yes
End
3-22
No
After checking the MB output,
replace MB.
No
Replace the buffer.
No
Check the signal pattern and take
actions.
No
Replace U1.
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