TB 9-6695-272-35
(4) Set TI to values listed in table 6 below. Using measuring receiver and Tuned RF
Level measurement techniques, measured power will indicate within limits specified.
NOTE
The output attenuator consists of a group of fixed attenuators.
These are used in a series combination to total 0 dB to -98 dB.
Therefore, a total of 60 dB will constitute a complete
calibration of all attenuators as all values above 60 dB are
duplicated.
Test instrument
range
Min
Max
+13.01
REFERENCE
+11.01
1.975
2.025
+9.01
3.975
4.025
+5.01
7.975
8.025
+3.01
9.975
10.025
-6.99
19.975
20.025
-26.99
39.97
40.03
-46.99
59.91
60.09
NOTE
Do not perform power supply check if all other parameters are
within tolerance.
a. Performance Check
(1) Assemblies A2 through A9 (fig. 1) must be installed before adjustments can
be made.
(2) Connect multimeter to +15 V and chassis ground located on Al motherboard (fig. 6).
If multimeter does not indicate between 14.99 and 15.01 V dc, perform b below.
b. Adjustments.
Adjust A14Rl0 (+15 V ADJ) (fig. 1) for a 15 V dc indication on