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SIGNAL DATA CONVERTER CIRCUIT CARD REPLACEMENT (AVIM) | Up
TM-1-1520-238-23-5 Helicopter Attack AH-64A Apache (NSN 1520-01-106-9519) (EIC: RHA) Manual | Next
SIGNAL DATA CONVERTER POWER SUPPLY REPLACEMENT (AVIM) |
TM 1-1520-238-23
Change 3 8-51
8.19.
SIGNAL DATA CONVERTER CIRCUIT CARD REPLACEMENT (AVIM) – continued
b. Remove circuit card (5) from converter (2).
Wear grounding strap.
NOTE
Step c. is typical only for removal of oil
pressure excitation card A4.
c. Install shunt bar (6) on card (5). Use shunt bar.
8.19.4. Cleaning
a. Wipe guide slots. Use cloth (item 52, App F).
8.19.5. Inspection
a. Check signal data converter for cracks, nicks,
and dents. None allowed.
8.19.6. Installation
a. Install card (5) in converter (2).
(1) Remove bar (6), if installed.
(2) Insert card (5) in guide slots (7).
(3) Push card (5) until fully seated.
b. Inspect (QA).
c. Install cover (1). Torque four screws (3) and two
screws (4) to 37 INCH-OUNCES.
(1) Install four screws (3) and two countersunk
screws (4).
(2) Torque four screws (3) and two screws (4) to
37 INCH-OUNCES. Use torque wrench and
screwdriver bit.
d. Inspect (QA).
e. Perform appropriate test. Use Electronic Equip-
ment Test Facility (EETF) (TM 11-6625-3085-30).
END OF TASK
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M04-2946-2
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M04-2946-4
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