363-205-401 RT Turn Up:
Issue 7, March 1997 Page 1 of 2
DLP-526
Perform RT Indicator Test
1. Press and hold
LED TEST
pushbutton on
ADU
.
2. Are all indicators listed in Table A lighted during LED test?
If
YES,
then
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO,
then continue with Step
3.
3. Are any of the indicators lighted during LED test?
If
YES,
then continue with Step
4.
If
NO,
then proceed to Step
5.
4.
!
CAUTION:
Any time a circuit pack containing option switches is replaced in an RT
assembly, ensure that any option switches are set per the work order or
engineering records. Incorrectly set LIU, LSU, or ADU option switches
may result in immediate or future loss of service or may introduce errors
into the digital bitstream.
Replace unit(s) that contain indicators that do not light and repeat from Step
1.
5. Replace
BCU
.
6. Press and hold
LED TEST
pushbutton on
ADU
.
Table A
Series 5 RT LED Test
Unit Indicator
Lighted
AUB27( ) ADU All LEDs
BCU All LEDs
TRU All LEDs
LIU All LEDs
CTU FAIL
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