Tabulated Data

TM 11-6625-2843-14

B 2 0 2 . It boosts the power of the control signal induced

d. Transmitter B201 is used to test self-synchronous

i n t o the servoed indicator to the level required by the

indicators and, with servoamplifier A201, to test ser-

low-inertia motor. The servoamplifier consists of two

voed indicators. It is manually driven through a gear

dual

triodes,

power

transformer,

output

train by a knob that protrudes from the control panel

transformer, and a silicon rectifier.

bezel. Dual concentric pointers sweep a dial which is

graduated from 0 to 360 degrees in 10-degree incre-

h. Power transformer T201 permits the test set to be

m e n t s for the slow pointer, and 0.1 -degree increments

energized either from a 115-volt 400Hz or a 26-volt

for the fast pointer. The transmitter is calibrated so

4 0 0 H z power source. For either source, the transformer

t h a t its electrical zero and the zero dial readings are in

s e c o n d a r y provides a 26-volt output to energize the test

coincidence.

c i r c u i t and a 10.8-volt output to enable electrical zero

e. I n d i c a t o r B 2 0 2 i s u s e d t o t e s t s y n c h r o t r a n s m i t -

c h e c k s of synchronous indicators.

t e r s and, with servoamplifier A201 and locked autosyn

i. Nine cables and one test adapter are supplied for

B 2 0 3 , to teat differential synchros. It consists of a con-

u s e when connecting the test set to a power source and

t r o l transformer that is driven through a gear coupling

t o the units under test. Refer to table 1-2.

b y a low-inertia motor. Dual concentric pointers sweep

j. A booklet of calibration tables for various autosyn

a dial which is graduated from 0 to 360 degrees in 10-

indicators and transmitters is also supplied with the

d e g r e e increments for the slow pointer, and 0.1-degree

test set and is located in a compartment inside the

increments for the fast pointer.

c o v e r of the case.

f. L o c k e d a u t o s y n B 2 0 3 i s u s e d w i t h i n d i c a t o r B 2 0 2

1-9. Tabulated Data

and servoamplifier A201 to test differential synchros.

Tabulated data on the major items of the test set are

For this test configuration, the indicator is locked at

given in the following

electrical zero, and the output of its stator feeds the

a. T a b l e 1 - 2 -- Items comprising an operable equip-

stator of the differential under test.

ment.

g. S e r v o a m p l i f i e r A 2 0 1 i s u s e d i n t h e t r a n s m i t t e r

and indicator test circuits to drive either the servoed

b. T a b l e 1 - 3 -- T e s t s e t , p h y s i c a l c h a r a c t e r i s t i c s .

i n d i c a t o r under test or self-contained servoed indicator

c. T a b l e 1 - 4 -- T e s t s e t , e l e c t r i c a l c h a r a c t e r i s t i c s .

Table

1-2.

Items

Comprising

Operable

Equipment

Function

Test

set,

synchro

Tests

26-volt,

400

Hertz,

self-synchronous

and

servoed

synchro'

indicators

and

transmit-

TTU-23/E

ters.

Contains

calibration

tables

for

selected

autosyn

indicators

and

transmitters.

Calibration

booklet

Power source cable A

Connects test set to 115-volt, 400-Hertz power source.

QB86062-1

Adapter

cable

Provides extension for power source cables QB86031-1, QB86032-1, and QB86033-1.

QB86063-1

Connects

teat

set

26-volt,

400-Hertz

power

source

aircraft

through

QB86063-1.

Used

QB86033-1

Power source cable C

with

servoed

indicators.

Power source cable E

Connects test set to 26-volt, 400-Hertz power source in aircraft through cable QB86063-1.

QB86031-1

Used

with

transmitters

and

synchronous

indicators.

Power source cable F

Connects test set to 26-volt, 400-Hertz power source in aircraft through cable QB86063-1.

QB86032-1

Used

with

indicators.

Test

adapter

cable

provides extension for test cables QB84967-1, QB84998-1, and QB86029-1.

QB86030-1

Servoed indicator test cable H

Connects test set through cable QB86030-1 to servoed indicator under test.

QB84967-1

Connects test set through cable QB86030-1 to 4-pin instrument under test.

QB84998-1

Autosyn teat cable J

Dual indicator test cable K

Connects test set through cable QB86030-1 to dual indicator under test.

QB86029-1

Test

plug

QB83704-1

Connects teat set transmitter to test set indicator for self-test, and to check locked synchro

B203

and

servoamplifier

A201.

Table 1-3. Test Set, Physical Characteristics

Table 1-4. Test Set, Electrical Characteristics

Characteristics

Specification

Characteristics

Dimension

Test

set

18 inches wide

Power source

115-volt, 400 Hertz, single phase, or 26-

1/8

inches

deep

volt, 400-Hertz, single phase

9 inches high

Power

consumption

25 watts at 115 volts

Weight

22 pounds

35 watts at 26 volts

1-2