TM 11-5840-281-35/1
Control settings
Step No.
Test equipment
Equipment under test
Test procedure
Performance standard
a.
a.
2
As last indicated, except: As last indicated ----
On 35 v voltage regulator,
-38v mln.
Differential voltmeter
rotate -35V ADJ control
R3427 fully cw and observe
Note: Place
indication on differential
OPERATE-CALIBRATE
voltmeter.
switch to CALIBRATE
b.
b.
Rotate -35V ADJ control
-32v max.
and adjust CALIBRATE
R3427 fully ccw and observe
control to zero meter, then
indication on differential
return switch to
c.
voltmeter.
-35v
OPERATE position.
c.
Adjust -35V ADJ control
NULL: VTVM
R3427 for -35v as indicated
RANGE: 50
on differential voltmeter.
Polarity:-
a.
a.
None.
Remove differential voltmeter
3
As last indicated, except: ---
As last indicated ----
positive (+) test lead from
Differential voltmeter
-35V testpoint TP3402 and
Polarity: +
connect to +85V testpoint
NULL: VTVM, 10 to
TP3403 on 35v voltage
.01 in progressive steps.
regulator.
b.
b.
38v min.
On 35v voltage regulator, ro-
tate +35V ADJ control R3414
fully cw and observe indica-
tion on differential voltmeter.
c.
32v max.
c.
Rotate +36V ADJ control
R3414 fully ccw and observe
indication on differential
voltmeter.
d.
+85v
d.
Adjust +35V ADJ control
R3414 for 35v as indicated on
differential voltmeter.
e.
None.
e.
Remove differential voltmeter
(+) positive test lead from
+35V testpoint TP3403.
a.
None.
a.
Connect differential voltmeter
(+) test lead to +12V test-
4
As last indicated, except: ------------------------------
point TP1803 on 12v voltage
Differential voltmeter
regulator.
A:1
b.
b.
On 12v voltage regulator,
+13v min.
B:2
rotate +12V ADJ control
C:0
R1812 fully cw and observe
D:0
indication on differential
E:0
voltmeter.
c.
c.
Rotate +12V ADJ control
+11v max.
R1812 fully ccw and observe
indication on differential
voltmeter.
d.
d.
Adjust +12V ADJ control
+12v
R1812 for 12v as indicated
on differential voltmeter.
e.
e.
Remove differential voltmeter
None.
(+) positive test lead from
+12V testpoint TP1803.
a.
a.
Connect differential volt-
None.
5
As last indicated, except: ---
As last indicated --
meter (+) positive test lead
Differential voltmeter
to -12V testpoint TP1802
Polarity:
on 12v voltage regulator.
NULL: VTVM, 10 to
b.
b.
On 12v voltage regulator,
-13v min.
.01 in progressive steps.
rotate -12V ADJ control
R1825 fully cw and observe
indication on differential
voltmeter.
4-33
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