Bogen Mct-1 Control Center 电路图.pdf

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1、BOGEN A DIVISION OF LEAR SIEGLER, INC. MCT-1 MODELS 15-1, SERIES 15 C o n t r o l C+- 15T-1,15-2,15-3 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

2、, 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 B

3、SR 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 cons

4、ole. 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 o

5、r 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 convers

6、ation 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. Model 15-2 In addition to the control panel, each Series 15 con- solet

7、te 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 (Sy

8、stems 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

9、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 l

10、eaving the factory. If the unit has been damaged, make an immediate claim to the dealer or dis- tributor from whom it was purchased. If the unit was shipped to you, notify the transport company without delay and place your claim. Printed in USA 8005 CENTRALIZED SCHOOL SOUND SYSTEM 54-5665-04 RadioFa

11、ns.CN 收音机爱 好者资料库 LOCATION OF CONSOLE/CONSOLETTE Where possible locate the console centrally, relative to the rooms being served, in order to minimize the length of speaker cables. The rear of the unit must remain accessible for maintenance and for changing in- put and output connections. It is advis

12、able that the unit be oriented in such a manner that the operator, program director and other interested parties are able to observe the controls at all times. Provide adequate lighting and ventilation. Do not locate the unit close to heat sources, such as radiators and warm-air ducts, or against a

13、wall which prevents proper ventilation. The Series 15-1 and 15T-1 consolettes are 21” (54 cm.) wide x 16” (40.6 cm.) high x 16” deep. The Series 15-2 consolette is 40” (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.

14、 POWER Connect the 3-wire cord with ground to a 105-125V, 50/60 Hz source. Make certain that the ground terminal of the power receptacle connects to earth ground. Two 50W AC power receptacles are provided on the rear panel for a tuner, automatic record changer or aux- iliary equipment. Line voltage

15、is applied to these com- ponents when the consolette or console power switch is on. Plug AC line cords into appropriate receptacle. INPUT CONNECTIONS MICROPHONE INPUTS. Two terminal strips on the rear of the MCT-1 provide for two low impedance balanced or unbalanced microphone inputs. Two- conductor

16、 shielded microphone cable should be used (Bogen #l008 or equivalent). Connect shield to terminal 1. TUNER/PHONO-TAPE INPUTS. Two jacks accept single-conductor shielded cable. TAPE RECORDER/BOOSTER AMP INPUT. Ac- cepts a two-conductor shielded cable (Bogen BB 8450 or equivalent). INTERCOM CALL-IN LI

17、NE. Connect parallel lines from station call-in switches with 2-conductor shielded cable. Connect shield to terminal 3. SWITCHBANK CONNECTION. Eleven-pin plug connects three shielded pairs plus annunciator wire from a switchbank. Also accommodates three lines for optional telephone system. TIME CLOC

18、K INPUT. Terminal strip connects a single-circuit time clock, closing contacts to activate the optional Model SST-l Module. GENERAL WIRING RUNNING CABLES WIRES. Class II wiring may be used for all audio and annunciator lines. Make certain to properly support cables to prevent sagging or strain. Keep

19、 wires clear of objects which would subject them to heat, friction, or other abuse. Use No. 20 AWG shielded pairs with insulated outer jacket (Bogen BB-8450, or equivalent) for speaker lines. Annunciator lines require a third wire, which usually is No. 22 AWG insulated wire with red insulation (Beld

20、en 8937, or equivalent). The number and types of wires running from each room to the consolette and running inside the classroom depend upon the type of speaker operation required. Consult Table I for the wires re- quired in your particular system. TABLE I. CABLE RUNNING CHART FOR SERIES 15 Wires fr

21、om Room to Consolette Wires From Room Switch to Room Speaker Type of Classroom Switch or Device Shielded Pair No. 22 AWG Used with Speaker Shielded Pair (Jacketed) Single Conductor (Jacketed) Refer to (Bogen BB-8450) Figure (Belden 8937) (Bogen BB-8450) None (Speaker Only) 1 0 0 l Call (Model CA-l0)

22、 1 1 1 l Call/Privacy (Model CA-l 1) 1 1 1 10 Voice Call-In, Non-Private 2* 0 1 2, 7 (Model CA13) *Alternate method: Run two cables from room nearest consolette and one cable from each remaining room. Run one cable in a loop or branch circuit connecting all room switches. -2- RadioFans.CN 收音机爱 好者资料库

23、 OUTLET BOXES. Where flush-mounting switches are used, single-gang outlet boxes will be installed. In installing such boxes, make certain to place them in a location that permits personnel to operate the switch while communicating via the room speaker. The normal height (above the finished floor) fo

24、r room switches is approximately four feet, while speakers are normally placed at a height of about seven and one-half feet. SOLDERING INSTRUCTIONS SOLDER. Do not use acid-core solder or acid paste. Make all solder connections with standard 60/40 resin- core radio solder. Do not apply excessive heat

25、. Solder- ing irons or guns from 75 to 200 watts will provide ample capacity. GROUNDS. Do not connect cable shields to earth ground or to convenient metal objects. It is important to connect cable shields only as shown in the wiring diagrams. CLASSROOM WIRING CONNECTIONS Refer to the left-hand colum

26、n of Table I for the type of classroom operation used in your system. The corres- ponding right-hand column calls out the wiring diagram required. Solder the wires as shown in the proper dia- gram and wrap with insulating tape. CAUTION Make certain to connect all wires in accor- dance with the color

27、 codes given on the dia- gram. SECURING SWITCHES The Model CA switches are designed for flush mounting in a standard single-gang electrical outlet box, BOGEN 25-VOLT ROOM LINE MATCHING SPEAKER TRANSFORMER (SEE NOTE-P) (SEE NOTE-I) - Iz II- lo 22AWG MIN.(TYP.) g(BELDEN 8937, OR EOUIV.) TO CONSOLE SWI

28、TCH BANK BOGEN 25-VOLT ROOM LINE MATCHING SPEAKER TRANSFORMER (SEE NOTE-2) I I TO CONSOLE SWITCH BANK NOTES : - I- CONNECT AS FOR NON-PRIVATE OPERATION, AS FOR NON-PRIVATE WITH ANNUNCIATOR, OR AS FOR PRIVATE WITH ANNUNCIATOR. 2- MODEL TS-2A (1/2 WATT TAP) SHOWN. SEE TEXT FOR TS-I6A T R A N S F O R M

29、 E R AND ADDITIONAL INFORMATION. Figure 1 - Connection Diagram, Speaker Installation -3- 7 4 - 2 5 8 8 - A L I N E Figure 2 - Room Speakers with Voice Call-In Switch, Connection Diagram or for surface mounting in a standard deep single-gang wire mold outlet box. Install the box in a location which p

30、rovides convenient access to both the switch and the room speaker. LINEMATCHING TRANSFORMERS The installation diagrams show Bogen line-matching transformers of or %-watt capacity (Models TS-025 or TS-05). Other recommended transformers are shown in figure 3. The console output is designed for a 25-v

31、olt constant voltage distribution system and all system loudspeakers must be provided with line-matching transformers. CAUTION Speakers and transformers must be proper- ly matched with respect to power require- men ts. CONSOLETTE WIRING Remove the Phillips-head screws securing the louvered pane1 on

32、the rear of the consolette (or console). There are three rows of solder terminals across the rear of each switchbank. Each selector switch corresponds to the three terminals directly behind it, one terminal from each row. White tabs are provided for identifying the room con- trolled by each selector

33、 switch. Insert the tabs in the slots provided in the transparent switch knobs. When rooms are identified by number, it is common practice to start numbering the switches from left to right (view- ing from the front or operator position), starting with the top switchbank. SWITCHBANK WIRING Wire the

34、switchbanks as shown in figure 4. If annun- ciator lamps are used (Model SBL), always solder the single annunciator wire to the top solder terminal. For all switch banks, solder the speaker lines to the center and bottom terminals, with the shield to the ground bus bar. This is the only place where

35、speaker shields should be grounded. VOICE CALL-IN OPTION Figure 2 shows the room connections and switch re- quired for installing an optional voice call-in system. The wiring must be completed by connecting the shielded pair from the switch to the terminal strip on the rear of the MCT-1 chassis. The

36、 polarity of the inner conductors is not critical, but make certain to connect the cable shield to the shield of the cable already con- nected to the terminal strip. Note that only one cable goes to the terminal strip. Usually, the cables from all room switches are con- nected by a common control ca

37、ble and one cable is run to the consolette. If this type of installation is not prac- tical, then the control cables for two or more switches are run to the consolette. In this case, connect all the cables in parallel in a junction box at the consolette and run a single control cable from the juncti

38、on box to the terminal strip on the MCT-1 chassis. CALL/PRIVACY OPTION Figure lc shows the room connections and switch re- quired for installing an optional annunciator/privacy function in the intercom system. 4- CONTROL FUNCTIONS All operating controls for the Series 15 Centralized School Sound Sys

39、tems 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 changer are described in their individual instructi

40、on manuals. MCT-1 CONTROL PANEL The controls on the Model MCT-1 Control Panel are: POWER ON-OFF SWITCH. Turns the system on and off. FUNCTION SELECTOR SWITCHES. These switches determine the mode of system operation. These operat- ing modes are: 1. Microphone. Connects microphone input to program cha

41、nnel (selected by MIC level control). 2. Program. Permits transmission of program material as determined by program distribution and program output switches. 3. Intercom. Enables and disables TALK/LISTEN switch. 4. Emergency. Permits operator to transmit to all sta- tions via panel speaker, regardle

42、ss of switchbank set- tings. Overrides all program and intercom functions. Operates with power switch On or Off. 5. Talk/Listen. Allows operator to communicate with room(s) selected on switchbank without affecting pro- gram distribution to remaining rooms. Enabled by In- tercom switch; depress to ta

43、lk, release to listen. CONSOLE SWITCH BANK , d$-; 0 0 0 0 0 o-l TYPE SBL SWITCH z )o 0 0 0 0 o-/-l : /BANK1 SHIELDED PAIR (BOGEN BB-8450, OR EOUIV.) NOTES : I-TERMINALS CORRESPOND TO SWITCH ON OPPOSITE SIDE OF FRONT PANEL. 2-DRESS SPEAKER LEADS TO PREVENT SHORTING LOWER TERMINALS TO GROUND BUS. Figu

44、re 4 - Consolette Switch Bank, Connection Diagram LEVEL CONTROL SWITCHES 1. Microphone. Fader control sets level of Mic 1 or Mic 2 program as indicated on output meter. May be used with Program level control for mixing. 2 5 VOLTS TS-2A 8 RED SEC J Wk; TS TS - 16A OHMS ONDARY 8 OHMS SECONDARY l/8 W R

45、ED l/4 w BLK/YEL l/2 w Y E L I w Y E L 2 W - TS- 16A I POWER TAP 2 w 4 w 8 w 16 W CENTER TAP WHT ORN ORN Figure 3 -Bogen Line-Matching Transformers -5- 2. Program. Fader control sets level of radio or phono/ tape program as indicated on output meter. May be used with Microphone level control for pro

46、gram mixing. 3. Intercom. Sets outgoing level of intercom transmis- sion to room speakers. 4. Monitor. Sets panel speaker level in program and intercom modes. 5. Tone. Provides flat response or reduces high-fre- quency response as control is moved toward HI CUT. PROGRAM OUTPUT METER. Color-coded to

47、clearly display 25 V reference level. PROGRAM SWITCHES 1. Program Distribution. Functions when program output selector is in SEND. NORM(a1) position pro- vides switchbank control over program distribution. ALL position distributes program to all rooms not con- nected to the intercom. 2. Program Outp

48、ut. SEND position enables program distribution switch. SET position disconnects program output from load for monitoring or presetting prior to distribution. Does not offset intercom functions. The program output switch should not be left in the SET position. Once adjustment is made, switch should be

49、 returned to SEND position. SWITCH BANKS MODEL SBS SWITCHBANK. Standard consolettes are equipped with one or two Model SBS Switchbanks. Each switchbank has 25 three-position lever switches for connecting individual rooms to the system. Each switch functions as follows: A - (Up position) - Connects classroom speaker to program channel for distribution of microphone, radio, or phono program. 0 - (Center position) - Disconnects classroom speaker from system, except when consolette is operating in Emergency mode. C - (Down position) - Connects classroom speaker to intercom cha