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TM 11-5820-890-20-2
2-4
2.1.
OPERATIONAL CHECK. Continued
STEP 4. VAA REMOTE DC POWER CHECK:
STEPS TO PERFORM
CHECKS TO MAKE
ACTIONS TO TAKE
4.1
Check configuration
SRM configuration?*
YES: Go to STEP 5
NO:
Go to Step 4.2
4.2
Set VAA CB1 to ON
Is VAA an AM 7239A, B, C, or
D?
YES: Go to Step 4.3
NO:
Continue
AM 7239 VAA DS1 lit?
YES: Go to Step 4.3
NO:
Go to TS Chart 10
4.3
Set RT-A FCTN to SQ ON
RT-A display lights?
NO:
Go to Step 4.4
YES: Go to TS Chart 11
4.4
Set AM 1780 MAIN PWR to NORM
VAA CB1 trips?
NO:
Go to Step 4.5
YES: Go to TS Chart 12
4.5
Set RT-A FCTN to LD and back to SQ ON
RT-A display lights?
YES: Continue
NO:
Go to TS Chart 13
AM 7239A, B, C or D
VAA DS1 lit and steady?
YES: Continue
NO:
Replace DS1
AM 1780 DS501 lit?
YES: Continue
NO:
Go to TS Chart 14
CX 13417 present?
YES: Continue
NO:
Go to STEP 6
Two CX 13417 present?
NO:
Go to Step 4.6
YES: Go to Step 4.11
4.6
Set AM 1780 MAIN PWR to INT ONLY
N/A
Go to Step 4.7
4.7
Set RT-A LS 671 CB1 to ON
RT A LS 671 CB1 trips?
NO:
Go to Step 4.8
YES: Replace LS 671
4.8
Set RT-A FCTN to LD and back to SQ ON
RT-A display lights?
YES: Continue
NO:
Go to TS Chart 15
RT-A LS 671 DS1 lit?
YES: Continue
NO:
Go to TS Chart 16
RT-B LS 671 present?
YES: Go to Step 4.9
NO:
Go to STEP 6
4.9
Set RT-A LS-671 CB1 to OFF.
Set RT-B LS-671 CB1 to ON.
N/A
RT B LS 671 CB1 trips?
N/A
NO:
Go to Step 4.10
YES: Replace LS 671
4.10 Set RT-A FCTN to LD and back to SQ ON
RT-A display lights?
YES: Continue
NO:
Go to TS Chart 17
RT-B LS 671 DS1 lit?
YES: Go to STEP 6
NO:
Go to TS Chart 18
* SRM means Single Radio Mount
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