1 Use the Table 001 as a reference to change each four bit hex
_
word into binary coded hex as follows:
1st snapshot word 7F81 (H) 15 bit 0 0111 1111 1000 1(H) 2nd snapshot word 3rd snapshot wordFDFF (H) FFFF (H)15 bit 0 15 bit 01111 1101 1111 1111 1111 1111 1111 1111
4th snapshot word 8FCF H 15 bit 0 1000 1111 1100 1111 5th snapshot word0002 H15 bit 00000 0000 0000 0010
1EFF : 301-399, 1 28-42-00Page 570 1 1 Aug 01/05R 1 1 1CES 1
2_ Record your result of the change from hex to binary 1s and 0s
on the related snapshot words. Start with bit 0 at the bottom
of the snapshot table and finsh with bit 15 at the top. Put
your 1s and 0s in front of the applicable True or False
entries in the column identified VALUE.
NOTE : All the Snapshot Word 1 tables start at bit 4. This is____
because the first hex character/digit stays in that
format. From it you can find which trigger description
(from those listed) that gave the original fault
message.
(b) Trigger Number 1 Make a record of the original hex character and stay in Para.
_
4.R. - FQIC MONITORING 1. 2 Go to:
_
-snapshot word 1 for trigger numbers (H) 1 thru C
-snapshot word 2 for trigger numbers (H) D thru 0. 3 In the second column under TRIG, find your trigger hexadecimal
_ character/number.
4 Make a record of the trigger description from the table.
_ NOTE : From the Troubleshooting data message example this is
____ 1. From Para. 4.R - FQIC MONITORING 1, snapshot word 1 TRIG 1 (on row/line bit 04) = CPU healthy boolean before confirmation - not healthy
(3) The Decoded (complete list) of the hexadecimal troubleshooting
example
065C 7F81 FDFF FFFF 8FCF
0002
is as follows:
The FAILURE INDEX is: *fqic master pin prog status
The EVENT is: FQIC MONITORING 1
1EFF : 301-399, 1 28-42-00Page 571 1 1 Aug 01/05R 1 1 1CES 1
The SNAPSHOT Word Description (All data decoded) -----------------------------The Event triggered by word (Wd) 1 bit (bt) 4
Wd 1 Bt 4:CPU healthy boolean before confirmation - not he
Wd 1 Bt 5:SC1 board not failed
Wd 1 Bt 6:SC2 board not failed
Wd 1 Bt 7:OBRM Test result in RAM - passed
Wd 1 Bt 8:CPU RAM test result in RAM - passed
Wd 1 Bt 9:ARINC RAM test result in RAM - passed
Wd 1 Bt 10:ARINC EEPROM test result in RAM - passed Wd 1 Bt 11:WATCH DOG test result in RAM - passed Wd 1 Bt 12:POWER SUPPLY Monitoring test result in RAM - pas Wd 1 Bt 13:ARINC Monitoring test result in RAM - passed Wd 1 Bt 14:Discrete Inhibition test result in RAM - passed Wd 1 Bt 15:Data received from SR8A
Wd 2 Bt 0:No software exception Wd 2 Bt 1:Pin programming failed Wd 2 Bt 2:Watch dog stimuli is disabled Wd 2 Bt 3:Fuel quantity monitoring healthy Wd 2 Bt 4:Temperature monitoring healthy Wd 2 Bt 5:ARINC bus A hardware output healthy Wd 2 Bt 6:ARINC bus B hardware output healthy Wd 2 Bt 7:ACT pinprog acquistion MUX healthy Wd 2 Bt 8:Channel 1 used Wd 2 Bt 9:Channel 2 not used Wd 2 Bt 10:Opp 28V power supply present Wd 2 Bt 11:Opp CPU power supply healthy Wd 2 Bt 12:ADC on SC1 board healthy Wd 2 Bt 13:ADC on SC2 board healthy Wd 2 Bt 14:Temperature computation on chn 1 healthy Wd 2 Bt 15:Temperature computation on chn 2 healthy
Wd 3 Bt 0:ADC MUX on SC1 board healthy Wd 3 Bt 1:ADC MUX on SC2 board healthy Wd 3 Bt 2:Driver MUX on SC1 board healthy Wd 3 Bt 3:Driver MUX on SC2 board healthy Wd 3 Bt 4:Simul capa MUX on SC1 board healthy Wd 3 Bt 5:Simul capa MUX on SC2 board healthy Wd 3 Bt 6:Ref temperatures on SC1 board healthy Wd 3 Bt 7:Ref temperatures on SC2 board healthy Wd 3 Bt 8:VOS from chn 1 is healthy Wd 3 Bt 9:VOS from chn 2 is healthy Wd 3 Bt 10:LOZ Driver 1 on SC1 board valid Wd 3 Bt 11:LOZ Driver 2 on SC1 board valid Wd 3 Bt 12:LOZ Driver 3 on SC1 board valid Wd 3 Bt 13:LOZ Driver 4 on SC1 board valid
1EFF : 301-399, 1 28-42-00Page 572 1 1 Aug 01/05R 1 1 1CES 1
The SNAPSHOT Word Description (All data decoded) -----------------------------Wd 3 Bt 14:LOZ Driver 1 on SC2 board valid Wd 3 Bt 15:LOZ Driver 2 on SC2 board valid
Wd 4 Bt 0:LOZ Driver 3 on SC2 board valid
Wd 4 Bt 1:LOZ Driver 4 on SC2 board valid
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