Users Manual Part 3

Table 6-1. L1, L2 and L3 Codes (Cont)
Repair actionLog type
L3L2L1
DescriptionCode
Descrip-
tion
Code
Descrip-
tion
Code
Reboot the system, if
persist, replace BUC-
PA/BUC
Critical Faults
BUC-PA NOT
MUTED
DURING
SYSTEM TEST
3
BUC-PA TX
Mute
2
BUC-PA/
BUC-HPA
Input
Discrete
from
KANDU
41
Check connection
from KANDU to BUC-
PA. If still not work,
replace BUC-PA/BUC
Critical Faults
LINE NOT
RESPONDING
ON BUC-PA
4
BUC-PA TX
MUTE
2
BUC-PA/
BUC-HPA
Input
Discrete
from
KANDU
41
Status
Message
Asserted0Filter Select3
BUC-PA/
BUC-HPA
Input
Discrete
from
KANDU
41
Status
Message
De-asserted1Filter Select3
BUC-PA/
BUC-HPA
Input
Discrete
from
KANDU
41
Check connection
from KANDU to BUC-
PA. If still not work,
replace BUC-PA/BUC
Critical Faults
LINE NOT
RESPONDING
ON BUC-PA
4Filter Select3
BUC-PA/
BUC-HPA
Input
Discrete
from
KANDU
41
Check connection to
IRU source and the
IRU sourceCritical FaultsInactive Link0Unknown0
IRU Input
Bus/
Aircraft
State Input
Bus
70/71
Turn on/align A429
signal, check APM
systemconfigCritical FaultsMISSING1
Pitch Angle
Label
1
IRU Input
Bus/
Aircraft
State Input
Bus
70/71
Page 6-54
23-15-84
EFFECTIVITY
ALL
11 Nov 2020
© Honeywell International Inc. Do not copy without express permission of Honeywell.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
JetWave™ MCS-8562 Terminal