S/5
TM
UPINET Board, B-UPI4NET-02
11
Document no. M1137269-02
4Troubleshooting
4.1 Troubleshooting
Digital_section_trbl_flowch_b-upi4net-02.vsd
Digital section faulty.
Remove all modules and boards
except CPU, UPI and display
controller board
OK ?
A
beep is
heard when
monitor is
turned
on ?
Insert one of the removed
boards.
Turn
the monitor on.
OK ?
Replace faulty board
Replace CPU or Display controller
Replace CPU board.
Is tone
same as at
OK start but
longer ?
Is tone
lower and longer
than at OK
start ?
Replace UPI-board
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Is tone
same as at
OK start ?
Try with another display
OK?
Yes
Yes
No
No
Replace display
Turn
the monitor on.
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