TM 11-6625-3081-23
8-3. ANALOG TO DIGITAL CONVERTER ASSEMBLY 2A2A13
8 - 3
INITIAL SETUP
Equipment Required
Personnel Required
EO Calibration Kit 13231056:
Self-Test Connector 13231049
39B ATE Repairer
RF Cable Assembly 13231052
One Assistant
Electronic Test Extender card
13231055
Test Equipment Required
Extender Card AC70
Coaxial Shorting Plug
Oscilloscope (TEK 475 or
Coaxial Cable 13081706-69
equivalent)
BNC to Banana Plug Adapter (2)
Digital Voltmeter
Digital Voltmeter HP3456A or
Equivalent
Equipment Status
A/D converter removed (para 2-60)
NOTE
Perform the following procedures
at 12 months intervals.
PREPARATION FOR ALINEMENT
1.
Place A/D converter on workbench.
2.
Disengage six fasteners (1) and
remove top cover (2). Connect ac
power cable (3) to ac input
connector on rear of chassis.
Connect ac power cable to a
convenient 115 vac power source.
Ensure that straps to PWR RTN, SIG
RTN, and CHS RTN are in place on
rear of A/D converter.
3.
Press front panel POWER switch.
Allow minimum of 10 minutes warmup
time before proceeding.
POWER SUPPLY OUTPUT 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 insert-
ing CCAS.
Change 9
8-3
