EIA Test Theory. - continued - TM-9-4931-363-14-P0036

TM 9-4931-363-14&P

z. Refer to step 25 in figure 2-6 and in the EIA test

ad. Refer to step 29 in figure 2-6 and in the EIA test

table. With S5 set to position 3, the gunner elevation error

table. With other switch positions remaining the same and

signal output from the A13 card in the EIA is connected

S9 set to position R3, the R3 output of test set resolver B1

is connected to the meter and A2 card for readout. This

through J1-p, through J1-R, through contacts 8 and 9 of

S9, and through S5A to the meter and A2 card for display.

test checks buffer amplifier A1.

The other connections remain the same as in v (step 21).

With no input signal to the A13 card from the linkage, R4

ae. Refer to step 30 in figure 2-6 and in the EIA test

is adjusted for a null. (The inputs to amplifier card A13 in

table. Setting S3 to position 2 connects the same excitation

the EIA are grounded through EIA J3-46 and J4-28 to

inputs to buffer amplifier A3 in the EIA as were connected

insure that the readout is not affected by these inputs

to A1. The buffer amplifier outputs are connected to the

during this zeroing.)

test set resolver as shown in figure 2-6. The R2 output from

the test set resolver is connected for readout on the meter

aa. Refer to step 26 in figure 2-6 and in the EIA test

and A2 card.

table. With other switch positions remaining the same and

S9 set to position R3, the pilot azimuth error signal output

af. Refer to step 31 in figure 2-6 and in the EIA test

from the A13 card in the EIA is connected through J1-Z,

table. Setting S9 to position R3 connects the R3 output of

through J1-F, through contacts 7 and 9 of S9, and through

the test set resolver to the meter and A2 card for readout.

S5-A to the meter and A2 card for display. With no input

signal to the A13 card from the linkage, R3 is adjusted for a

ag. Refer to step 32 in figure 2-6 and in the EIA test

null. (The inputs to amplifier card A13 in the EIA are

table. Setting S3 to position 3 connects the excitation

grounded as in z (step 25).)

inputs to buffer amplifier A5 in the EIA. With S9 set to

position R2, the R2 output of the test set resolver is

ab. Refer to step 27 in figure 2-6 and in the EIA test

connected to the meter and A2 card for readout.

table. With other switch positions remaining the same and

S5 set to position 2, the pilot elevation error signal output

ah. Refer to step 33 in figure 2-6 and in the EIA test

table. Setting S9 to position R3 connects the R3 output of

from the A13 card in the EIA is connected through J1-E,

through J1-E in the test set, through contacts 4 and 6 of

the test set resolver to the meter and A2 card for readout.

S9, and through contact 3 and wiper 1 of S5-A to the

meter, and through contact 9 and wiper 2 of S5-A to the

ai. Refer to step 34 in figure 2-6 and in the EIA test

A2 card. With no input signal to the A13 card from the

table. Setting S3 to position 4 connects the excitation

linkage, R1 is adjusted for a null. (The inputs to amplifier

inputs to buffer amplifier A7 in the EIA. With S9 set to

card A13 are grounded as in y (step 24).)

position R2, the R2 output of the test set resolver is

connected to the meter and A2 card for readout.

ac. Refer to step 28 in figure 2-6 and in the EIA test

table. The 10 volts ac, phase angle 0 degrees, is connected

aj. Refer to step 35 in figure 2-6 and in the EIA test

through wiper 1 and contact 4 of S4-D, through wiper 1

table. Setting S9 to position R3 connects the R3 output of

and contact 2 of S3-A, through J1-B, and through J1-B of

the test set resolver to the meter and A2 card for readout.

the EIA as one simulated turret input. The 5 volts ac, phase

angle 0 degrees, is connected through wiper 1 and contact 4

ak. Refer to step 36 in figure 2-6 and in the EIA test

of S4-F, through wiper 1 and contact 2 of S3-C, through

table. Setting S3 to position 5 connects the excitation

J1-A, and through J1-A of the EIA as another simulated

inputs to buffet amplifier A2 in the EIA. With S9 set to

turret input. These inputs excite buffer amplifier A1 in the

position R2. the R2 output of the test set resolver is

EIA and the buffer amplifier outputs are brought to the

connected to the meter and A2 card.

resolver in the test set for readout. The buffer amplifier

outputs at J3-5, -6, -1, -2, -8, and -3 are connected

al. Refer to step 37 in figure 2-6 and in the EIA test

respectively through J1-x, -AA, -Y, -BB, and -z, and through

table. Setting S9 to position R3 connects the R3 output of

the test set resolver to the meter and A2 card for readout.

J2-a of the test set to test set resolver B1. The R2 output of

test set resolver B1 is connected through contact 4 and

am. Refer to step 38 in figure 2-6 and in the EIA test

wiper 1 of S4-I, through contacts 2 and 3 of S9 set to

table. Setting S3 to position 6 connects the excitation

position R2, and through S5-A to the meter and phase

inputs to buffer amplifier A4 in the EIA. With S9 set to

detector card A2 for readout.

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