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Chapter 1. INTRODUCTION - TM-11-6625-2843-140007
Up
TM-11-6625-2843-14 Test Set Synchro TTU-23/E Manual
Next
Chapter 2. OPERATING INSTRUCTIONS - TM-11-6625-2843-140009
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,
a
power
transformer,
an
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 .
Items
Comprising
an
Operable
Equipment
Function
Test
set,
synchro
Tests
26-volt,
400
Hertz,
self-synchronous
and
servoed
synchro'
indicators
and
transmit-
TTU-23/E
ters.
Contains
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
B
Provides extension for power source cables QB86031-1, QB86032-1, and QB86033-1.
QB86063-1
Connects
teat
set
to
26-volt,
400-Hertz
power
source
in
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
G
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-
11
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

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