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9
(Continued)
0
Read the following note, then go to Part 2 of this chapter and perform the
External Port Test. When that is finished, RETURN TO THIS POINT.
Note:
You have already disconnected up to three cables from the 7426 and now
you will test the cab/e to the failing terminal. When performing the Externat
Port Test, you will be directed to remove all the cables from all the ports on
the 7426. DO NOT REMOVE THE GABLE TOBE TESTED. You will be
directed to move a test p/ug from port to port. When you get to the port with
the cable attached, set the test plug aside because the cable will have a test p/ug
attached. Continue the other procedures as directed, then RETURN TO THIS
POINT.
Did the port with the cable attached fail the test?
YES
NO
1
0
Disconnect the test plug from the cable and store it for future use.
0
Reconnect the cable to the terminal.
0
Go to the Chapter
3
checklist.
0
Replace the failing cable. (This may have tobe ordered by your site planner.)
10
Power
Lamp
•
Test
Mode
0
Unit
Ready
0
Line
Ready
0
Co mm
Check
0
Machine
Check
•
0
Press the Power Switch to OFF (0) then to ON ( 1).
Does the Machine Check lamp remain on?
YES
NO
1
0
Go to the Chapter 3 checklist.
0
Replace the 7426 by following your local procedures.
4-8
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