TM 11-6625-3041-30/TO 33A1-8-908-12
2-6. SG-1139 CHECK PROCEDURE (CONT)
q Set
control as
Step Input
follows :
7
Indicaters
POWER . . . . . . ON
TIMING . . . . . MASTER
DATA RATE . . 576
ATACS
Press and hold LAMP TEST pushbutton:
Green DATA IN
and TMG IN
indicators must
light. If they
do, release LAMP
TEST pushbutton and
proceed to step 8.
This step checks the following:
Receive 1 card . . . DATA IN lamp driver
TMG IN lamp driver
Control Filter . . . DATA IN indicator lamp
TMG IN indicator lamp
If DATA IN or TMG IN indicator does not light:
Remove LOGIC access cover (refer to TM 11-6625-3041-12) and
note which card contains a lit fault indicator. Replace that
card and repeat step 7.
If no card contains a lit fault indicator, possible cause is
Receive 1 card A5. Replace (refer to TM 11-6625-3041-12), and
repeat step 7.
If replacement card does not provide proper indication,
possible cause is Control Filter A8. Replace (refer to
para 2-13), and repeat step 7.
