Procedure 8.20: CHECK LIGHT-EMITTING DIODES (LEDs)
PROCEDURE
1.
Locate unit power switch in Table 8.20-1 .
2.
Toggle
ACO/T
switch to right.
Response:
All power switch LEDs are lighted.
3.
Is
TN5
power switch being tested?
If
YES
, continue with the next step.
If
NO
, go to Step 5.
4.
Verify that all
TN10
LEDs are lighted and that
STATUS
indicates
B
.
5.
Is
TN6
power switch being tested?
If
YES
, continue with the next step.
If
NO
, go to Step 7.
6.
Verify that both LEDs are lighted on all
TN9
circuit packs.
7.
Return
ACO/T
switch to normal (left).
Results:
Light-emitting diodes (LEDs) checked.
Table 8.20-1 Unit Power Switch
UNIT
POWER SWITCH
CABINET/FRAME
a
b
CU 0
TN5
PC Bay 0
CU 1
TN5
PC Bay 1
DFC 0
TN3
PC Bay 0
DFC 1
TN3
PC Bay 1
IOP 0
TN6
PC Bay 0
IOP 1
TN6
PC Bay 1
340-MB MHD a
ED-4C481
T/D 0
340-MB MHD b
ED-4C481
T/D 1
Notes:
a.
CU = Control Unit.
DFC = Disk File Controller.
IOP = Input/Output Processor.
MB = Megabyte.
MHD = Moving Head Disk.
a = MHD 0, 1, 2, and 3.
b = MHD 4 through 11.
b.
PC = Processor Control.
T/D = Tape/Disk Cabinet.
8.
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
235-105-210
October 1999
Copyright © 1999
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Summary of Contents for 5ESS-2000
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Page 799: ...Figure 11 36 3 1 Cleaning Points 235 105 210 October 1999 Copyright 1999 Page 7 ...
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Page 1008: ...Figure 11 55 1 CTSNS DIP Switch Settings 235 105 210 October 1999 Copyright 1999 Page 2 ...
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Page 1289: ...Figure 15 17 2 AMATPS Data Link 235 105 210 October 1999 Copyright 1999 Page 2 ...
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Page 1360: ...Figure 15 47 2 Typical SCANS III Link Diagram 235 105 210 October 1999 Copyright 1999 Page 2 ...
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Page 1421: ...Table 1 1 O M Checklist 235 105 210 October 1999 Copyright 1999 Page 3 ...