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)
