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400 SERIES MAINTENANCE MANUAL Page 3-9
P/N 190-00140-05 Rev. C
Table 3-5. Static Messages
(continued)
COM remote transfer key stuck Verify that Remote Transfer Key Line is not stuck
before replacing COM Board
Replace Com Board (see paragraph 4.5.4)
Heading input failure Replace Main Board (see paragraph 4.5.5)
CDI key stuck Replace Flex Cable (see paragraph 4.5.2.1)
Replace Key Board (see paragraph 4.5.2)
Replace Main Board (see paragraph 4.5.5)
OBS key stuck Replace NAV Receiver (see paragraph 4.5.6)
COM is not responding Replace Com Board (see paragraph 4.5.4)
GPS has failed Replace GPS Module (see paragraph 4.5.5)
GPS needs service Replace GPS Module (see paragraph 4.5.5)
G/S is not responding Replace G/S Receiver (see paragraph 4.5.6)
VLOC has failed Replace NAV Receiver (see paragraph 4.5.6)
VLOC needs service Replace NAV Receiver (see paragraph 4.5.6)