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Page Title:
Section IV. CALIBRATION PROCESS |
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  TB 11-6625-2974-30
Section IV. CALIBRATION PROCESS
(2) Observe DVM. Reading should be + 10.0 ± 0.V.
NOTE
If the performance standard is met, go to
Each calibration procedure in this
subparagraph e (below) for the next
section is divided into two parts: a
performance check. If not, go to subparagraph d
performance check, and an adjustment.
(below) for adjustment.
If the parameter being measured is
d.
+ 10 V Adjustment. Adjust A6A1-R6 to obtain a
within tolerance during the performance
reading of + 10.0 + 0.3 V on DVM.
check, do not perform the adjustment.
e.
-15 V Performance Check.
Instead, go on to the next performance
(1) Connect DVM to A6Al-E14 (+) and
check.
chassis ground(-)
4-1. Regulator Assembly A6 Calibration
a. + 15 V Performance Check.
(2) Observe DVM. Reading should be - 15.0 + 0.V.
(1) Set STE PRIME POWER AC and DC switches
If the performance standard is met, perform step
(fig.4-1) to OFF.
(3). not, go to subparagraph f (below) for
(2) Lay test set back on its base plate and locate
adjustment.
regulator assembly A6 (fig. 4-2).
(3) Set STE PRIME POWER AC and DC switches
(3) Remove four screws securing regulator
to OFF.
assembly A6 to base plate. Lift regulator
(4) Reinstall regulator filter A6A1 on regulator
assembly A6 off base plate.
assembly A6. Install four screws to secure it.
(4) Remove four screws securing regulator filter
(5) Reinstall regulator assembly A6 on chassis base
A6A1 to regulator assembly A6. Pull regulator
plate. Install four screws to secure it.
filter A6A1 out just far enough to reach test
f.
-15 V Adjustment.
points on circuit card (fig.4-3).
(5) Connect DVM to regulator filter A6A1-E8 (+) (fig.
(1) Adjust A6Al-R9 to obtain a reading of -15.
± 0.3 V on DVM.
(6) Set STE PRIME POWER AC and DC switches
(2) Set STE PRIME POWER AC and DC switches
to ON.
to OFF.
(7) Observe DVM. Reading should be + 15.0 ± 0.V.
(3) Reinstall regulator filter A6A1 on regulator
If the performance standard is met, go to
assembly A6. Install four screws to secure it.
subparagraph c (below) for the next
(4) Reinstall regulator assembly A6 on chassis base
performance check. If not, go to subparagraph b
plate. Install four screws to secure it.
(below) for adjustment.
b. +15 V Adjustment. Adjust A6A1-R3 to obtain a
reading of + 15.± 0.3 V on DVM.
c. +10 V Performance Check.
(1) Connect DVM to A6Al-Ell (+) and chassis ground
(-).
4-1
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