TM 11-6625-3081-23
8-3. ANALOG TO DIGITAL CONVERTER ASSEMBLY 2A2A13 (cont)
8 -3
7. Remove A/D converter CCA (9) from
slot J74 (7).
Install extender card
(8) in slot J74.
Install CCA (9) in
extender card.
8. Set extender card switches S1, S2,
and S3 to position 1.
9. Press front panel POWER switch to
apply power.
Press LOCAL/REMOTE
switch for local control.
10. Set extender card switch S1 to
position 3.
11. Press ANALOG switch on front panel.
Verify that ANALOG LED is on.
12. If necessary, adjust A/D converter
CCA OFFSET control (9) until front
panel DATA DISPLAY indicates as
close to O as possible.
(Upper
limit is 4 and lower limit is
177774.)
13. Press front panel POWER switch to
remove power.
CAUTION
The A/D converter contains parts and
assemblies sensitive to electro-
static discharge (ESD). Use ESD
precautionary procedures (para 2-21)
when touching, removing, or
inserting CCAS.
14. Remove CCA from extender card.
Remove extender card from slot J74.
Install CCA in slot J74.
SIGNAL PROCESSOR TIMING ADJUSTMENT
CAUTION
The A/D converter contains parts and
assemblies sensitive to electro-
static discharge (ESD). Use ESD
precautionary procedures (para 2-21)
when touching, removing, or
inserting CCAS.
Change 9
8-5
