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SERIES 15
DESCRIPTION
The Bogen Series 15-1 Centralized School Sound
System is designed to serve up to 50 rooms. It incorpo-
rates one Model MCT-1 Control Center and either one
or two Model SBS-25 Switchbanks, and is housed in a
desk-top consolette. The Series 15T- 1 accommodates up
to 25 rooms and includes one Control Center, one
Switchbank and one Model TP-160B AM/FM Tuner
housed in a desk-top consolette. The Series 15-2 consists
of one Control Center, one or two Switchbanks, one
AM/FM Tuner and one BSR 3-speed record changer. It
is housed in a desk-top, dual consolette and serves up to
50 rooms. The Series 15-3 consists of one Control
Center, one or two Switchbanks, one AM/FM Tuner
and one 3-speed record changer. It can accommodate up
to 50 rooms and is operated from a sturdy free-standing
console.
Each system has one 35-watt program channel and an
independent 4-watt intercom channel. The program
channel has two low-impedance microphone inputs
which can be used balanced or unbalanced. It also has
inputs for radio, phono and tape program sources and a
fader control to select either radio or phono-tape. The
selected program may be used alone or may be mixed
with the microphone program.
The MCT-1 control panel has a loudspeaker which
serves as both a program monitor speaker and an inter-
com transmitter/receiver. By means of the intercom
channel, the operator may hold a two-way conversation
with occupants of any room without disturbing the pro-
gram being transmitted to other rooms. If desired, the
intercom channel also may be used to permit the op-
erator to monitor any selected room through its room
speaker.
Printed in USA
8005
B O G E N
A DIVISION OF LEAR SIEGLER, INC.
MCT-1
CENTRALIZED SCHOOL SOUND SYSTEM
Model 15-2
In addition to the control panel, each Series 15 con-
solette or console has one or two switchbanks contain-
ing the individual room selector switches. In the stan-
dard system, these are 3-position lever switches used to
connect each room speaker to either the program (A)
channel or the intercom (C) channel, or to disconnect
the speaker from the system (Systems with optional
light-annunciator call circuit have four-position lever
switches). The units have an Emergency mode of opera-
tion which overrides these selector switches. When
operating in Emergency, the operator can transmit from
the control panel speaker to all room speakers, regard-
less of the settings of the room selector switches or of
other program inputs to the speakers. The Emergency
function operates whether the power switch is on or off.
INSTALLATION
UNPACKING
Inspect the shipping container and unit for indica-
tions of improper handling. The unit was carefully
checked before leaving the factory. If the unit has been
immediate
damaged, make an
tributor from whom it was purchased. If the unit was
shipped to you, notify the transport company without
delay and place your claim.
MODELS 15-1,
15T-1,15-2,15-3
claim to the dealer or dis-
54-5665-04

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Table of Contents
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Summary of Contents for Bogen SERIES 15

  • Page 1 25 rooms and includes one Control Center, one Switchbank and one Model TP-160B AM/FM Tuner In addition to the control panel, each Series 15 con- solette or console has one or two switchbanks contain- housed in a desk-top consolette. The Series 15-2 consists ing the individual room selector switches.
  • Page 2: Input Connections

    16” (40.6 cm.) high x 16” deep. The Series optional Model SST-l Module. 15-2 consolette is 40½” (102.9 cm.) wide x 16” high x 16” deep. The Series 15-3 console is 22” (55.9 cm.) wide x 46” (116.8 cm.) high x 31” (78.7 cm.) deep. POWER...
  • Page 3: Soldering Instructions

    SECURING SWITCHES connect cable shields only as shown in the wiring The Model CA switches are designed for flush diagrams. mounting in a standard single-gang electrical outlet box, BOGEN 25-VOLT BOGEN 25-VOLT LINE MATCHING ROOM LINE MATCHING ROOM...
  • Page 4 LINEMATCHING TRANSFORMERS and bottom terminals, with the shield to the ground bus The installation diagrams show Bogen line-matching This is the only place where speaker shields should bar. transformers of ¼ or %-watt capacity (Models TS-025 be grounded.
  • Page 5: Control Functions

    School Sound Systems are located on the front of the consolettes (consoles). The Series 15T-1 is equipped with an AM/FM radio tuner, while the Series 15-2 and 15-3 have both a tuner and an automatic record chang- er. The operating controls for the tuner and record...
  • Page 6: Operation

    Fader control sets level of radio or phono/ TO TURN CONSOLETTE-ON 2. Program. tape program as indicated on output meter. May be Set POWER ON-OFF switch to ON position. used with Microphone level control for program mixing. Sets outgoing level of intercom transmis- Intercom.
  • Page 7: Accessory Equipment

    BOGEN SERVICE TIME TONE OPTION We are interested in your Bogen equipment for as long as you have it. If trouble ever develops, do not The external single-circuit time clock closes contacts hesitate to ask our advice or assistance. Information can...
  • Page 8: Technical Specifications

    12.5 volts on the placed with genuine Bogen parts, available through V.T.V.M., turn the meter control R102 (potenti- Bogen distributors, service agency or directly from the ometer nearest to front panel) until the needle reaches factory.
  • Page 9 Figure 6 - Front view, MCT-1 Control Panel MICROPHONE INPUTS. For low-impedance AC POWER INPUT 3-wire cord with gr balanced or unbalanced mics. Use 2-conductor microphone cable (Bogen 1006. or equiv.). Con- 50/60 Hz source. Ci panel and convenience outlets. nect shield to terminal 1. PHONO INPUT...
  • Page 10 Schematic Schematic Reference Part No. Description Reference Part No. Description 45-9995-01 P.C. Board Assy, Amp. PL-101 94-o 197-O 1 Pilot lamp, # 19 C3A, 4A 79-008-03 1 Capacitor, Electrolytic, Q101-102 96-5232-02 Transistor - 3B, 4B, 12 l0µF, 16V RlOl, 102 77-00 l-576 Control, Level Adj., 5R C7A, 7B...
  • Page 13 (consoles). The Series 15T-1 is equipped tape program as indicated on output meter. May be with an AM/FM radio tuner, while the Series 15-2 and used with Microphone level control for program 15-3 have both a tuner and an automatic record chang- mixing.
  • Page 14 TO TURN CONSOLETTE ON switch. Speak clearly into the control panel speaker POWER ON-OFF switch to ON position. from a distance of approximately 12” (Note: Intercom function switch must be depressed to receive VOICE CALL IN from stations). DISTRIBUTE MICROPHONE PROGRAM TO OPERATE EMERGENCY Move...

This manual is also suitable for:

15-215t-115-115-3

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