Chapter 5 - BIT Error Codes
TM00358 Rev. A
October 2007
L-3 WESCAM
96
All Rights Reserved
5.2.7 GPS BIT Codes 20.x
8.7
No Video From EOW
MAJOR
Master control processor detected
loss of video. (no sync signal)
Check cable connections for bent
pins.
8.8
No Video From IR
MAJOR
Master control processor detected
loss of video. (no sync signal)
Check cable connections for bent
pins.
8.9
No Video From EON
MAJOR
Master control processor detected
loss of video. (no sync signal)
Check cable connections for bent
pins.
8.10
No Video From AVT
MAJOR
No video being sent out from
Autotracker.
Execute a BIT from the Level 2 AVT
Menu. If problem persists, replace
Turret.
8.12
Map Not
Communicating
MAJOR
No messages received from the
map system.
Fix map or cabling.
8.13
Loss of INS Data
MINOR
Loss of customer provided INS
aiding data.
Customer action.
8.14
MX Pod Not
Communicating
MAJOR
Turret not communicating with the
MX-Pod.
Check cabling, then MX-Pod power.
If the indication persists replace the
MX-Pod.
Table 5-8 Failure Descriptions for 20.x BIT Codes
BIT
#
Message
Category
Failure Description
Recommended Action
20.1
Not Communicating
MAJOR
GPS not communicating with Turret.
Check GPS communications
connections. Cycle system power.
20.2
Invalid Message
Threshold Exceeded
MINOR
Exceeded invalid message
threshold.
Check functionality of GPS by
performing a system BIT.
Cycle power, if GPS functionality is
not restored then replace Turret.
20.3
Checksum Error
Threshold Exceeded
MINOR
Exceeded checksum error
threshold. May indicate a problem
within the GPS functionality.
Check functionality of GPS by
performing a system BIT.
Cycle power, if GPS functionality is
not restored then replace Turret.
20.4
No Position
MINOR
Not receiving satellite data.
Check antenna.
Table 5-7 Failure Descriptions for 8.x BIT Codes (Continued)
BIT
#
Message
Category
Failure Description
Recommended Action