TM 11-6625-2440-12
Seq
Item
Procedure
Reference
No.
∆ V self-test
37
a. Set EU SIGNAL INPUT switch to 9
b. Set EU TEST SET SCAN switch to 2
c. Observe counter for an indication of 1.0
( 0.5) Hz and scope for waveform D,
∆ V self-test .........................
38
a. Set EU SCAN SELECT switch to CHAN X
b. Observe counter for an indication of 1.0
( 0.5) Hz and scope for waveform D,
∆ V self-test .........................
39
Set EU TEST SET SCAN switch to 3, and
Observe scope for waveform E,
∆ V self-test .........................
40
Set EU SCAN SELECT switch to CHAN Y,
and observe scope for waveform E,
∆ V self-test .........................
a. Set EU SIGNAL INPUT switch to 8
41
b. Set EU TEST SET SCAN switch to 4, and
observe scope for waveform E,
∆ V self-test .........................
42
Set EU SCAN SELECT switch to CHAN X,
and observe scope for waveform E,
∆ V self-test .........................
a. Set EU SCAN SELECT switch to Z
43
b. Set EU TEST SET SCAN switch to 1, and
observe scope for waveform F, figure
3-3.
∆ V self-test .........................
a. Set EU SIGNAL INPUT switch to 9
44
b. Set EU TEST SET SCAN switch to 2, and
observe scope for waveform F, figure
3-3.
∆ V self-test .........................
a. Set C-D GYRO BIAS switch to GB1
45
b. Set EU TEST SET SCAN switch to 1, and
observe scope for waveform F, figure
3-3.
∆ V self-test .........................
a. Set EU SIGNAL INPUT switch to 8
46
b. Set EU TEST SET SCAN switch to 2, and
observe scope for waveform F, figure
3-3.
Note. Procedures In sequence numbers 47
through 52 must be performed with counter
set to at least 100-second gate.
a. Set EU SCAN SELECT switch to CHAN X
47
Velocity-torque logic ...........
b. Set EU TEST SET SCAN switch to 7, and
observe that counter indicates between
113.25 and 114.75 Hz.
48
Velocity-torque logic ...........
Set EU SIGNAL INPUT switch to 9, and
observe that counter indicates between
110.25 and 111.75 Hz.
a. Set C-D GYRO BIAS switch to GB2
49
Velocity-torque logic ...........
b. Set EU SCAN SELECT switch to Y, and
observe that counter indicates between
110.25 and 111.75 Hz.
50
Velocity-torque logic ...........
Set EU SIGNAL INPUT switch to 8, and
observe that counter indicates between
113.25 and 114.75 Hz.
a. Set EU SCAN SELECT switch to CHAN Z
51
Velocity-torque logic ...........
b. Set EU TEST SET SCAN switch to 6
c. Observe that with LATITUDE switch set to
NORTH, counter indicates between
37.88 and 93.88 Hz; with LATITUDE
switch set to SOUTH, counter indicates
between 54.12 and 150.12 Hz.
a. Set EU SIGNAL INPUT switch to 9
52
Velocity-torque logic ...........
b. Observe that with LATITUDE switch set to
NORTH, counter indicates between
149.88 and 205.88 Hz; with LATITUDE
switch set to SOUTH, counter indicates
between 206.12 and 262.12 Hz.
53
Mode control .......................
Set C-D GC1 switch to HOLD, and observe
that GC2 indicator goes out and GC1
indicator lights.
54
Divide-by-5 logic .................
Set EU TEST SET SCAN switch to 3, and
observe counter for an indication of
11.25 ( 1) Hz.
TM 11-6625-2440-12
3-14
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