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  TB 11-6625-2974-30
f.
+ 10 Vdc Adjustment. Adjust Al-R18 (fig. 4-13) to
n. - 15 Vdc (A) Adjustment. Adjust Al-R30 (fig. 4-13)
obtain a reading of +10.00 ± 0.04 Vdc on -_* DVM.
to obtain a reading of -15.00 ± 0.01 Vdc on DVM.
g.
+ 15 Vdc (A) Performance Check.
o
- 15 Vdc (B) Performance Check.
(1) Connect DVM to +15 VDC(A) red (+) and gray (-)
(1) Connect DVM to -15 VDC(B) red (+) and gray (-)
jacks on front panel.
jacks on front panel.
(2) Observe DVM. Reading should be + 15.0 +
(2) Observe DVM. Reading should be -15.0 ±
0.Vdc. If the performance standard is met, go to
0.Vdc. If the performance standard is met,
subparagraph i (below) for the next performance
perform step (3). If not, go to subparagraph p
check. If not, go to subparagraph h (below) for
(below) for adjustment.
adjustment.
(3) Set STE PRIME POWER AC and DC switches
h.
+15 Vdc (A) Adjustment. Adjust A1-R21 (fig. 4-
to OFF.
13) to obtain a reading of + 15.00 + 0.01 Vdc on DVM.
(4) Disconnect test setup. Calibration complete.
i.
+15 Vdc (B) Performance Check.
p.
-15 Vdc (B) Adjustment.
(1) Connect DVM to +15 VDC(B) red (+) and gray (-)
(1) Adjust A1-R33 to obtain a reading of -15.± 0.01
jacks on front panel.
Vdc on DVM.
(2) Observe DVM. Reading should be + 15.0 ±
(2) Set STE PRIME POWER AC and DC switches
0.Vdc. If the performance standard is met, go to
to OFF.
subparagraph k (below) for the next
(3) Disconnect test setup. Calibration complete.
performance check. If not, go to subparagraph j
4-8. Final Procedure
(below) for adjustment.
a.
Installation of Test Set.
j.
+15 Vdc (B) Adjustment. Adjust A1-R24 (fig.
(1) Install card cage cover on card cage A5.Install
five screws to secure cover.
k.
+15 Vdc (C) Performance Check.
(2) Set test set front panel into case.
(1) Connect DVM to +15 VDC(C) red (+) and gray (-
(3) Install 16 floating screws holding front panel to
) jacks on front panel.
case.
(2) Observe DVM. Reading should be + 15.0 ±
(4) Install case cover and snap four latches into
0.Vdc. If the performance standard is met, go to
place.
subparagraph m (below) for the next
b. Final Instructions. When all parameters are within
performance check. If not, go to subparagraph I
tolerance, annotate and affix DA Label 80 (US Army
(below) for adjustment.
Calibrated Instrument). When the test instrument (TI)
l.
+15 Vdc (C) Adjustment. Adjust A1-R27 (fig. 4-
receives limited or special calibration, annotate and affix
13) to obtain a reading of + 15.00 ± 0.01 Vdc on DVM.
DA Label 163 (US Army Limited or Special Calibration).
m
- 15 Vdc (A) Performance Check,
When the TI cannot be adjusted within tolerance, repair
(1) Connect DVM to - 15 VDC(A) red (+) and gray (-
the TI in accordance with the maintenance manual.
) jacks on front panel.
When repair is delayed for any reason or the TI cannot
(2) Observe DVM. Reading should be - 15.0 ±
be repaired with local resources, annotate and affix DA
0.Vdc. If the performance standard is met, go to
Form 2417 (US Army Calibration System Rejected
subparagraph o (below) for the next
Instrument) and inform the owner/user accordingly in
performance check. If not, go to subparagraph n
accordance with TB 750- 25-1.
(below) for adjustment.
4-17/(4-18 blank)
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