ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Malfunction
Bit Location
GMALF
Not used
0
Program instruction/data checksum
1
Subroutine entrance checksum
2
IMU calibration data checksum
3
Variable data memory test
4
CDU instruction/register test
5
Output discrete word parity
6
A/D converter self test
7
Computer serial data bus
8
Platform 1/0 short loop test
9
CDU serial data bus/display register
10
Not used
11
Serial data bus long loop test (SPU)
12
Platform 1/0 long loop test (SPU)
13
1/0 discrete long loop test (SPU)
14
A/D converter long loop test (SPU)
15
GMALF + 1
IMU hardware no-go
0
Heading synchro rate test
1
Roll synchro rate test
2
Pitch synchro rate test
3
IMU temperature test
4
IMU discrete test
5
Alignment timing error
6
Alignment quality error
7
Synchro/accelerometer
8
Not used
9
Not used
10
Not used
11
Not used
12
Time out counter inoperative
13
Time out counter interrupt invalid
14
Computer over-temp at power dwn int
15
BOFAIL (OP CODE)
Or of following bits
0
LDA, STA, SUB, SKZ
1
CPY
2
LBP, SBP
3
LXB, SXB LXP, SXP, LXL
4
DLA, DSA, LAL
5
SNZ, TPA, TMA, TAL, TRR, TIX
6
DAD, DSB
7
MPY
8
DIV
9
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