TM 11-6625-596-12
dome over its diaphragm. The test loudspeaker is
response .............................. 300 to 5,100 hertz i3 db.
movable on two support rods. The loudspeaker cable
Output....................................... 20dynes/cm2, with
mates with connector 1A2A14J13 ((4), below).
control adjusted for
(2) Spare Parts Assembly 1A2A3.
Assembly
A',
midscale deflection of
1A2A3 provides storage space for the spare fuses and
meter.
lamps listed in appendix B. A three-contact receptacle
c. Physical
which mates with the TS-716/U power plug is mounted
Weight (including
on the cover of 1A2A3. When the TS-716/U is prepared
carrying case ....................... 85 pounds.
for storage or shipment, the power plug is inserted in the
Operating tempera-
receptacle to prevent movement of the power plug.
ture range ................................. 32to 160 F (0 to 55
(3) Microphone Stand Assembly 1A2A4. Assembly
C).
1A2A4 includes a test microphone and an acoustical
1-6. Components and Running Spares of Telephone
Test Set TS-716/U
shipment or storage and are shown in figure 1-3 in the
operating position. The test microphone is mounted on a
a. Components. This equipment consists of the
support arm such that the microphone can be rotated
TS-716 only. The dimensions are 18 9/16 inches high by
360 on the support arm. The support arm may be
14 11/16 inches wide by 15 3/8 inches deep.
raised, lowered, or rotated on the coupler support bar as
required. The microphone holding fixture can be moved
b. Running Spares. Refer to appendix B for the
horizontally on its support arm and, by means of a
basic issue items list.
spring-loaded cylinder, can be moved vertically to exert
1-7. Description of TS-716/U
pressure on any item that is to be held over the
The TS-716/U is housed in a plastic waterproof carrying
microphone cable mates with connector 1A2A14J12 ((4),
case. Bottom case assembly 1A1 contains test rack
below).
assembly 1A3 and panel chassis assembly 1A4.
Assemblies 1A3 and 1A4 which contain the electronic
(4) Electrical Test Panel 1A2A14. Panel 1A2A14
circuitry, indicators and controls are physically connected
by a piano hinge and electrically connected by laced,
transducers to be tested, one receptacle for connecting
hard-wired cabling. Top case assembly 1A2 contains a
the test microphone, and one receptacle for connecting
test loud-speaker, a test microphone, electrical and
the test loudspeaker. The following chart lists the
mechanical coupling facilities, and a spare parts
compartment.
indicates what each mates with. The location of the
1-8. Description of Assemblies
Assembly 1A1 (the bottom of the carrying case) is a
Reference
plastic protective container for assemblies 1A3 (c below)
a
Mates with
designation
and 1A4 (d below).
J1 ........................ Carbon microphone plug.
J2 ........................ Microphone and earphone plug.
J3 ........................ Earphone plug.
1A2 (the top of the carrying case) contains the following
J4 ........................ Microphone and earphone plug.
items.
J5 ........................ Carbon microphone plug.
J6 ........................ Microphone and earphone plug.
(1) Loudspeaker 1A2A2. Loudspeaker 1A2A2 is
J7 ........................ Dynamic microphone plug.
a permanent magnet test loudspeaker mounted in a
J8 ........................ Microphone and earphone plug.
metal case with a perforated metal
J9 ........................ Dynamic microphone plug
J10 ...................... Dynamic microphone plug.
J11 ...................... Dynamic microphone plug.
J12 ...................... TS-716/U test microphone plug.
J13 ...................... TS-716/U test loudspeaker plug.
a
prefix reference designation with 1A2A14.
1-3