TM 11-6625-2638-12
Section Ill. OPERATION UNDER USUAL CONDITIONS
2-2. General
Operation of the ALT test set consists of performing indicator lamp and fuse
checkout procedures (table 2-1 6).
Table 2-16. Lamp and Fuse Checkout
Step Procedure
Normal Indication
Corrective Action
1
Ensure POWER
switch is OFF.
2
Connect 28 VDC
Green wire to ground.
White wire to return.
power cord to 28
Black wire to 28 vdc.
VDC power.
3
Connect 115 vac
Green wire to ground.
White wire to return.
power cord to 115
Black wire tol 15 vdc.
VAC, 400 HZ power.
4
Place POWER
AC lamp lights.
Check 2 amp fuse;
replace if necessary.
switch to ON.
Check ac indicator
lamp; replace if neces-
sary per paragraph 3-9.
DC lamp lights.
Check 10 amp fuse;
replace if necessary
per paragraph 3-10.
NOTE
The power supply has a
built-in 10 sec (approx)
delay.
5
Press LAMP TEST.
All remaining lamps light
Replace lamps that do
(TFT lamp may stay on).
not light per paragraph
3-9.
2-3. Site and Shelter Requirements
Site and shelter requirements for the test set and test stand are determined by the
power requirements, physical characteristics, and environmental operating
ranges (para 1-10).
2-32
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