Nortel North American DMS-100 Instruction Manual page 523

1-502 Trouble locating and clearing procedures (continued)
TOPS MP Operator complaint (standalone)
Clearing screen trouble
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297-8021-544 Standard 14.02 May 2001
(end)
If the VDU screen
stays dark
Turn off the MP position.
Secure the MP VDU power cord to the AC connector. Refer to the figure in
step 2.
Turn on the MP position.
If the VDU screen
lights
stays dark
Turn off the MP position.
Remove the MP VDU power cord from the wall socket.
Test the wall socket for power supply.
If power is
present
not present
Replace MP VDU. Refer to Card Replacement Procedures and return to this
point.
If the VDU screen
lights
stays dark
For additional help, contact the next level of support.
Perform the common procedure Placing an MP position in service
(standalone) .
This procedure is complete.
Do
step 6
Do
step 14
step 9
Do
step 12
step 13
Do
step 14
step 13