TM 11-5820-890-20-1
3.1.
OPERATIONAL CHECK. Continued
STEP 2. POWER CHECKS:
STEPS TO PERFORM
2.1
Set VAA CB1 to ON
and RT-A LS-671 CB1 ON
CHECKS TO MAKE
VAA CB1 trips? *
VAA DS1 lights?
VAA DS1 blinks continuously?
ACTIONS TO TAKE
NO: Continue ¯
YES:
Go to TS Chart 1
YES: Continue ¯
NO:
Go to TS Chart 2
NO: Continue ¯
YES: Replace VAA
LS-671 CB1 trips?
NO:
Continue ¯
YES: Replace LS-671
LS-671 DS1 lights?
YES:
Go to Step 2.2
NO:
Go to TS Chart 3
2.2
Set RT-B LS-671 CB1 ON
LS-671 CB1 trips?
NO: Continue ¯
and RT-A LS-671 CB1 OFF
YES: Replace LS-671
LS-671 DS1 light?
YES:
Go to Step 2.3
NO:
Go to TS Chart 4
2.3
Set RT-A LS-671 CB1 to ON
PA Mount CB1 trips?
NO: Continue ¯
and set PA mount CB1 to ON
YES:
Go to TS Chart 5
PA Mount DS1 lights?
YES:
Go to Step 2.4
NO:
Go to TS Chart 6
2.4
Set RT FCTN to Z-FH or
RT display lights?
YES: Continue ¯
Z for RT-1523E
NO:
Go to TS Chart 7
RT display reads GOOD?
YES: Continue ¯
NO:
Replace RT if it reads other
than GOOD
RT HUB lit? **
NO:
Go to STEP 3
YES: Replace HUB
RT HUB still lit?
NO:
Go to STEP 3
YES: Replace RT
*
If VAA CB1 still trips after completing a TS Chart 1 corrective action, go back to TS Chart 1 and continue.
* *
RT1523E does not have a HUB display.
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