Dukane 1A951 User manual

COMMUNICATIONCONTROL PANEL
1A951
DUKANE
D
FEATURES
VOICE CALL-IN AND PRIVACY
AUDIBLE AND VISIBLE MONITORING
MICROPHONE AND AUXILIARY INPUTS
EMERGENCY AND ALL CALL FACILITIES
35 WATTS PROGRAM, 4 WATTS INTERCOM
FULL PROGRAM AND INTERCOM FACILITIES
GENERAL DESCRIPTION
Model 1A95 1 is a solid state control pan e l that standard features. The “EMERGENCY’ feature requires
provides separate amplifiers for the intercom and program no external emergency microphone. The Control Panel
functions with provisions for an external boaster amplifier operates on
105-125 volts, 50-60 Hz with 24 vdc avail-
if mare power is required in the program system. able far external use. The Panel is 5-l/4” high, 19”
The Control Panel provides “voice call-in”, wide and
10-l/2” deep and finished in black and light
” privacy” ,“all call” and “EMERGENCY’ functions as gray with bright aluminum trim.
SPECIFICATIONS
RATED OUTPUT (CONTINUOUS):
Program:
35 watts or external booster ampli-
fier.
Intercom: 4 watts.
FREQUENCY RESPONSE:
Program:
20 to 20kHz ±2 dB (treble control
flat).
intercam: Shaped for best voice articulation.
DISTORTION:
Less than 5%.
NOISE LEVEL:
Progran: Microphone -50dB, Auxiliary
-60dB.
REGULATION:
Less than 2 dB.
INPUT FACILITIES:
3 low
impedance, balanced or single ended micro-
phones.
2 high impedance auxiliary.
1 high impedance bridging.
SENSITIVITY:
Microphone: 400 microvdh.
Auxiliary: $00 millivolts.
Bridging: 1 volt.
Intercan: 1 millivolt.
OUTPUT FACILITIES:
Program: 25 vdh balanced line.
Intercam:
Bridging:
STABILITY:
25 volts balanced line.
100 millivolts.
Intercom
& Program: No spurious oscillation from
full load to no load with capacitive load from
IOOpf
to 10µf with rated input and driven 6dB
above rated input at 100 Hz.
CONTROLS:
Program
selector switch, made selector switch,
program volume control, monitor volume control,
program-listen-talk switch, power switch.
METER:
VU Type reads ”0” with 10 volts across 25 volt
line for program and IC .
FUSE: 2 amp.
SLO-BLO.
AUXILIARY POWER:
24 VDC available.
DIMENSIONS:
5-l/4” high,
19” wide, l0-l/2” deep.
FINISH:
Black and light gray with bright aluminum trim.
WEIGHT:
23pounds.
TERMI NATIONS:
Screw terminals and receptacles.
OPTIONAL EQUIPMENT
438-270 Time Tone Generator
438-246 Supervisory Signal Genemtar
438-273 Repetitive Audible Tone
(Continued on reverse side)
CORPORATION COMMUNICATIONS SYSTEMS DIVISION ST. CHARLES, ILLINOIS 60174

DUKANE
External Connections
COMMUNICATIONS CONTROL PANEL IA951
GENERAL DESCRIPTION
The Dukane Model lA951 Communications Control Panel provides microphone and
auxiliary inputs, program and intercom amplifiers, monitoring
facilities, ALL
CALL and EMERGENCY functions, and power control for Compact Communications Centers.
GENERAL TERMINAL CONNECTIONS AND FUNCTIONS
Terminal
BOOSTER
(pair)
BRIDGE
CALL-IN
(pair)
COM
IC (pair)
M
MIC 1,2,
and 3
OFF (pair)
Connects to
PROG terminals on Model
9A14 16
OR
Optional external booster
amplifier output
High impedance tape in-
put or output
ANN terminal on Model
9A1416
Call-in switch at room
station, if provided
24 VDC, negative terminal
IC terminal on Model
9A1416
One OFF terminal on Model
lA951 through approximate-
ly 3300 ohms. (connection
is optional)
L O Z, balanced or single-
ended microphone
OFF terminals on Model
9A1416
Function
Jumpered to PROG terminals, provides
35 Watt program output.
Connected to booster amplifier out-
put, provides booster power for
program output.
Provides high impedance input or
output connection for record, play,
and monitor functions.
Provides +24 VDC for annunciator
Power.
Provides microphone level input
for Voice Call-in.
Ground connection for control
functions.
Provides connection for intercom
Line,
Meter All-Call or Emergency ann-
ouncements.
Microphone input connections.
Provides connections for Speaker
Selector Panel OFF lines when
EMERGENCY, ALL-CALL or time pro-
gramming are used,
402-322

Terminal Connects to Function
PHONO
External phono Phono input connection,
PROG(pair)
BOOSTER terminals on Model
Jumpered to BOOSTER terminals, pro-
9A1416
vides 35 watt program output.
OR
Optional external booster Connected to booster amplifier
in-
amplifier input through
put, provides input for booster
appropriate transformer or
amplifier.
bridging network.
RCV
SP
SHLD,
SHLDS
SS
Hookswitch for handset, if Hookswitch breaks connection between
handset is used
RCV and SP when handset is lifted
from hookswitch to transfer audio
from loudspeaker to handset.
OR
SP terminal on Model
Allows sound to be heard at loud-
lA951 speaker.
Hookswitch for handset, if Hookswitcn breaks connection between
handset is used
SP and RCV when handset is lifted
from hookswitch to transfer audio
from loudspeaker to handset.
OR
RCV terminal on Model
Allows sound to be heard at loud-
lA951
speaker.
Cable shields
Provides connections for cable
shields.
SS terminals on Model
+24VDC control line for optional
9A1416 Supervisory Signal and Audible
Annunciator, if used.
T
TAPE
TLR
Time control switch on
Provides control for Time Tone
master clock
option.
Tape unit output
Tape unit connection.
N.0. contact on Talk-
Actuates Talk-Listen relay when
Listen Switch in handset switch is activated to place
ground on TLR.
TUNER
XM
Tuner output
Through N.C. contact on
hookswitch when handset
is off hook to handset
transmitter.
Tuner connection.
Provides telephone transmitter con-
nection to IC amplifier when using
handset.
RVC, Xl,
Not wired internally
Provided for possible options.
x2, x3, x4,
X5, X6, X7

OPERATING INSTRUCTIONS 1A951
MONITOR, SPEAKER/MICROPHONE l -
Reproduces program material when
PROGRAM-LISTEN-TALK switch is in
PROGRAM position. Volume is regu-
lated by MONITOR volume control.
Functions alternately as a speaker
and microphone when PROGRAM-LISTEN-
TALK switch is operated between
LISTEN and TALK position.
PROGRAM SELECTOR SWITCH
Selects input source to amplifier
for program distribution to selected
speakers.
VU METER
Indicates level of program material
being amplified by the program
amplifier. For average program
material,the meter needle should
fluctuate between -6 and +l.
POWER SWITCH e*
Controls primary power to the
panel. When placed to the ON
position, the VU meter is illuminated.
6PROGRAM VOLUME CONTROL
Regulates volume of program
material to selected speakers.
Advance control until VU meter
needle fluctuates between -6
to
+l on meter scale.
MONITOR VOLUME CONTROL.-
Regulates volume of program
material heard from the monitor
speaker.
Has no effect on outgoing
intercom volume.
When using a console micro-
phone, this control should be turned
down or off to prevent acoustic feed-
back or "howling."
b
PROGRAM-LISTEN-TALK SWITCH
In the PROGRAM position, this
switch connects any selected program
to the Monitor Speaker. In the
LISTEN position the Monitor Speaker
reproduces any speech from the
selected speaker.
In the TALK
position, anything spoken into the
Monitor Speaker is heard at the
selected speaker.
-e
EMERGENCY SWITCH - In the EMGY
position any announcement into the
Monitor Speaker is sent to all
speakers.
In the ALL position
any selected program is sent to
all speakers. For normal operation
the switch should remain in the
NORM position.
401-314

k
NC
:;
- C8
Cl0
Cll,Cl2
Cl3
C14,C15
Cl6
Cl7
Cl8
C20
c21
CRl,CR2
CR7,CR8
CR9,CRl
CR11
CR3,CR4
CR5,CR6
Fl
Jl,J2;
J3, J4
J5,J6
J7
38
Kl,K2
Ll,L2
Ml
Pl - P3
Q1
Q2,Q3
Rl - R8
R9, RlO
ii:
9)
Rl6,R25
R17,R22
R18,R21
REPAIR PARTS LIST
IA951
DESCRIPTION
Capacitor,
.025 uF, lOO-volt ceramic disc
I,
1000 µF 35 WVDC 'lytic
I,
: .047 uF, 200-volt film
"
3000 µF 35WVDC 'lytic
"
: 0.33 uF, 200-volt film
"
,
.Ol uF, 1400-volt ceramic disc
"
.068 µF, 200-volt film
"
: 0.1 µF, 200-volt film
"
,
100 uF, 50 WVDC 'lytic
"
,220 PF, ceramic disc
Diode, silicon, lN4385; 600 PIV
II
, silicon, lN5401; 100 PIV
230-21-00100
Fuse, slow blow, 2 amperes 320-010-0200
Fuse holder; for Fl
321-10
Lamp, 28-volt; No. 1829 456-87
Jack double, phono pin
597-112
Connector, double male, 6-pin 210-14-00006
Receptacle, AC convenience
Relay, 4 form C'S, 24VDC
Inductor, 50 mHy
Meter, VU
Receptacle, female, 6-pin
Transistor, NPN; 2N5294
"
Resistor,
"
,
"
,
"
,
"
,
"
,
"
,
"
,
"
,
"
,
,
NPN; 2N3055
22 ohms, ½ watt
150 ohms,
½ watt
560,000 ohms,
½ watt
47,000 ohms,
½ watt
variable 100,000 ohms; PROGRAM
68,000 ohms, ½ watt
10,000 ohms; ½ watt
33 ohms, 5 watts; W.W.
300 ohms, 5 watts; W.W.
4.7 ohms, 4 watt
DUKANE PART NUMBER
199-1012-253
199-2053-108
199-4046-473
199-2053-308
199-4046-334 ,
199-9255
199-4046-683
199-4046-104
199-2048-107
199-1005-221
595-44
597-212
c96-126---J
393-18
485-2014
597-240-0006
720-32
720-31
600-0080-220
600-0080-151
600-0080-564
600-0080-473
601-332
600-0080-683
600-0080-103
600-1007-330
600-1007-301
600-0080-4R7

LEGEND
R19,R20
R23,R24
R26
R27
R28
R29
R40
R30
R31,R32
R33
R34
R35
R36
R37
R38,R39
R214
s:
S3
s4
s5
Tl
T32
T4
LS
REPAIR PARTS LIST
DESCRIPTION
Resistor,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
10 ohms, ½ watt
0.27 ohms, 5 watts;
W.W.
1.0 ohm, 5 watts; W.W.
6800 ohms, ½ watt
470,000 ohms, ½ watt
variable, 100,000 ohms, I.C. vol
variable, 100,000 ohms, Emer.
vol.
600-0073-0100
600-1050-R27
600-1007-1RO
600-0080-682
600-0080-474
601-330
601-330
variable, 600 ohms; MONITOR
601-331
4700 ohms, ½ watt
600-0080-472
330,000 ohms, ½ watt
600-0080-334
750 ohms, 5 watts; W.W.
600-1007-751
680 ohms, 1 watt 600-0116-681
47 ohms, ½ watt
600-0080-470
220,000 ohms, ½ watt
600-0080-224
750 ohms, 1 watt
600-0110-471
variable, 100,000 ohms, Treble
601-224
Switch, rotary;
PROGRAM SELECTOR
680-570
, lever; PROGRAM-LISTEN-TALK
680-571
"
, POWER
680-569
"
Rotary; NORM-ALL-EMERG
: thermostat
680-623
"
702-l
Transformer, AF driver
"
AF output
"
:IC output
"
,
AC power
MISCELLANEOUS PARTS AND HARDWARE
Clamp; for AC power cord
Cord, 3-wire, AC power
Grille
Grommet
Insulator, mica; for Q2, Q3
Jewel, red; for I1
Knob
Socket; for I1
"
; for Q2, Q3
"
; for Kl, K2
Speaker, intercom, 3-inch; 35 ohms
Wafer, capacitor mounting;
l-3/8 inches
Wafer, capacitor mounting; l-inch
191-49
200-204
347-264
350-8
395-118
420-45
440-264
566-3
635-99-00042
597-259
645-51
748-10607
748-9578
Amplifier Driver PC board, complete
110-1292
4-Watt I.C. Ampl. PC board, complete 110-1293
Single Mic Stage PC board, complete 110-1294
*Time Tone Generator 438-270
*Supervisory Signal Generator 438-246
*Repeating Audible Annunicator
438- 273
1A951
DUKANE PART NUMBER
710-1031
710-2144
710-2145
710-4217

DUKANE
Service lnformat ion
COMMUNICATION CONTROL PANEL 1A951
Equipment consists of:
UNIT SERVICE INFORMATION
1A951 Communication Control Panel
with:
404-926.02 190-2002-03
110-1292 Power Amplifier Driver KB
110-1293 4-Watt IC Amplifier KB
Revised Repair Parts List
110-1294 Single Mic Stage KB
404-816 190-1832-00
$Ij-;; ;. ;; 190-l 833-01
404-818.01 190-1838-00

I IO- 1294
LEGEND
ClOl,
C102,
C103,
Cl06
C104,
Cl05
Cl07
QlOl
Q102
RlOl,
R102
R103
R104
R105
R106,
R107
R108
R109
RllO
REPAIR PARTS LIST
DESCRIPTION
Capacitor, 5 µF, 25 WVDC ‘lytic
II
,
470 pF, lOOO-volt ceramic disc
II
,
1000 µF, 25 WVDC ‘lytic
Transistor, NPN;
2N5088
720-49
II
,PNP; 2N5086
720-48
Resistor, 1000 ohms, l/2 watt
"
, 470,000 ohms, l/2 watt
"
, 100,000 ohms, l/2 watt
"
82,000 ohms, l/2 watt
II
: 680,000 ohms, l/2 watt
22,000 ohms,
l/2 watt
II
1 10 ohms, l/2 watt
II
,5600 ohms, l/2 watt
DUKANE PART NUMBER
199-2021-505
199-1014-471
199-2021-107
600-0080-102
600-0080-474
600-0080-104
600-0080-823
600-0080-684
600-0080-223
600-0080-100
600-0080-562

REPAIR PARTS LIST FOR 110-1736 PCB
LEGEND DESCRIPTION D’JKANE PART NO.
Cl, C4, C6,
CB, Cl9
C2, C9, ClO,
C11, C12
:: c7
C13, Cl5
Cl4
C16, C17, Cl8
C20
c21
c22
CR1
Ql
:: R13, R20
R3
R4, R9, R12,
R14, R16, R18
::
:;
RlO, Rll
R15
R17
Rl9.
Ul
u2, u3
Capacitor, .05uF/5OWVDC, Disc, cer
Capacitor, lOuF/5OWVDC, Lytic
Capacitor, 47uF/35WVDC, Tant
Capacitor, 22uF/35WVDC, Tant
Capacitor, .033uF/100WVDC, Mylar
Capacitor,
.Ol uF/lOOWVDC, Mylar
Capacitor,
lOOuF/25WVDC, Lytic
Capacitor, 22pF, Disc, cer
Capacitor,
15pF, Disc, cer
Capacitor,
68pF/lOOOV, Disc, cer
Diode, Zener
22.OV
Transistor, 2N3053
Resistor, 56K ohm,
1/2 Watt, 5%
Resistor, 1 ohm,
l/2 Watt, 5%
Resistor, Variable, 1 Meg ohm
Resistor,
10K ohm, l/2 Watt, 5%
Resistor, 91 K ohm,
l/2 Watt, 5%
Resistor,
100K ohm, l/2 Watt, 5%
Resistor, 300K ohm, l/2 Watt, 5%
Resistor, Variable, 5000 ohm, 20%
Resistor, Variable,
1OOK ohm
Resistor, 9100 ohm,
l/2 Watt, 5%
Resistor, 510 ohm, l/2 Watt, 5%
Resistor, 8200 ohm, l/2 Watt, 5%
Integrated Circuit, NE5534AN
Integrated Circuit, MC1 741SCP1
199-101 l-503
199-2048-l 06
199-2036-476
199-2036-226
1 OO-4007333
100-4007-103
199-2021-107
199-1013-220
199-1005-150
199-1013-680
230-19-00022
720-37
6oO-O073-563
600-0073-1 RO
601-343
600-0073-103
,
600-0073-913
600-0073-104
zzz3=
601-341
600-0073-912
600-OO73-511
60O-OO73-822
z
-7-