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Bedienelemente
Operation elements
Elements d'operation
CD Ein/Aus-Schalter
On/Off switch
Interrupteur marche/arret
(2) NF-Eingangsbuchse, symmetrisch. Empfind-
lichkeit: 60 mV ... 3 V, Impedanz 10 kQ
AF-input socket, balanced. Sensitlvity: 60 mV
...3 V; impedance: 10 kQ
Prise d'entree BF symetrique. Sensibilite: 60 mV
...3 V; impedance 10 kQ
CD NF-Pegeleinsteller
AF-Ievel control
Regulateur du niveau BF
(4) Aussteuerungskontroll- und Betriebsanzeige
Modulation and operating indicator
Indicateur de niveau et de fonctionnement
Ci) Netzschalter
)
Mains switch
Interrupteur general
CD LEO-Kontrollanzeige12V Betriebsspannung
für Kanaleinschübe 4 - 8. Erlischt bel Fehler
in der Spannungsversorgung.
Indication 12 V operating voltage for chan ne I
modules 4 - 8. Ooesnot light up atfailure in
the voltage supply.
Affichage LEO de contröle de la tension 12 V
pour les modules 4 a 8. S'eteint en cas de
panne d'alimentation.
(i) LEO-Kontrollanzeige 12 V Betriebsspannung
für Kanaleinschübe 0 - 3. Erlischtbei Fehler
in der Spannungsversorgung.
Indication 12 V operating voltage for channel
modules 0 - 3. Ooes not light up at failure in
the voltage supply.
Affichage LEO de contröle de la tension 12 V
pour les modules 0 a 3. S'eteint en cas de
panne d'alimentation.
--
Systemkomponenten/Components of the system/Composants du systeme
CDLEO-Kontrollanzeige 32 V Betriebsspannung
für Infrarot-Strahler älterer Bauart, Typ
SZI1 019. Erlischt bei Fehler in der Span-
nungsversorgung.
Indlcation 32 V operating voltage for infrared
radiator SZI1 019. Ooes not light up at failure
in the voltage supply.
Affichage LEO de contröle de la tension 32 V
pour radiateur Infrarouge SZI1 019. S'eteint
en cas de panne d'alimentation.
CD Netzbuchse
Mains socket
Prise secteur
(iO)
Sicherungshalter
Fuse holder
Fusible
(ii)
+@HF-Ausgangsbuchsen zum Anschluß
der Strahler SZI1 019. 4-pol. XLR-Buch-
sen sind parallel geschaltet.
RF-output sockets for connecting
infrared radiators, type SZI1 019. 4-pin
XLR-sockets, connected in parallel.
Sorties HF permettant de brancher le
radlateur SZI1 019. Les bornes XLR sont
branchees en parallele.
@+(ii)HF-Ausgangsbuchsen zum Anschluß
der Strahler SZI1 019 A. BNC, Impedanz:
60 Q. Buchsen sind parallel geschaltet.
RF-output sockets for connecting
Infrared radiator SZI1 019 A. BNC,
impedance: 50Q. Sockets are
connected in parallel.
Sorties HF permettant de brancher le
radlateur SZI1O19 A. Les bornes BNC
so nt branchees en parallele, impedance
50Q.
@ Koppelpunktbuchse zum Verkoppeln zweier
SI 1019 A bei Erweiterung auf mehr als
9 Kanäle. BNC.
Sum socket for interconnecting two SI 1019 A
for building up a system with more than 9
channels.
Borne de couplage permettant de brancher
deux radiateurs SZI1 019 A, lorsque I'appareil
comporte plus de 9 canaux. Borne BNC.
Kanalmodul SIK 1019 A
Channel module SIK 1019A
Module de canal SIK 1019 A
Stromversorgungsmodul SIS 1019A 20
Power supply module SIS 1019 A 20
Module d'alimentation SIS 1019 A 20
Chassis SIC 1019 A 20
Chassis SIC 1019 A 20
ChassIs SIC 1019 A 20
Gehäuse SIG 1019
Housing SIG 1019
Boitier SIG 1019
Koffer EMK 1036
Carrying case EMK 1036
Valise EMK 1036
Blindplatte SIB 1019
Cover plate SIB 1019
Plaque vierge SIB 1019
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INFRAREDCONTROLTRANSMITTERSI1019 A
Introduction
The SI1 019 A is an intrared transmitter tor wireless multi-channel systems, wh ich are used in
conterence and interpreter installations. Its tunction is to process sound signals in the way that they
can be transmitted to a multi-channel receiver through invisible intrared light. In the receivers
EKI1 019-6, EKI1 019-9, EKI1 019-12 the modulated intrared signal will be transtormed again into
audible signals.
SZI1019A
I .
SI1019A
Fig. 1: Principle ot intrared transmission
)P
HD 410D
~6
The unit is build up in 19"-modular technique and is mainly composed ot the tollowing componets:
housing SIG 1019, chassis SIC 1019 A 20, power supply module SIS 1019 A 20 and channel
module SIK 1019 A (channel 0 to channeI11).
Description of components:
)i
Chassis SIC 1019 A 20
The 19"-chassis ofters enough space tor one power supply module SIS 1019 A 20 and 9 channel
modules SIK 1019 A. It contains a mains transtormer, the rear wiring tor connecting the separate
channel modules as weil as the output sockets tor the RF-connections to the intrared radiators
SZI1 019 and SZI1 019 A. The chassis is suitable tor installation in 19"-racks but can also be used
as a table top unit together with the housing SIG 1019 or the carrying case EMK 1036. Unoccupied
module places can be covered with the cover plates SIB 1019.
The chassis comes with the mains cord
VZN 1010-1.
Power supply module SIS 1019 A 20
This module delivers the power required tor the channel modules as weil as tor the SZI1 019
radiators. Its section tor the channel modules is split up into!wo separately stabilized units, one tor
positions 0 to 3 and a second one tor positions 4 to 8. it one ot the supply voltages breaks down
one ot the LEDs @,0, or @on the tront panel will go out.
In addition to the stabilizer stages, the SIS 1019 A 20 has an RF master amplitier which mixes the
signals trom the channel modules and amplities them up to the level required by the intrared radia-
tors.
10
Channel module SIK1019
A
The signal from a mixing console etc. isted into the SIK 1019 A channel module.The balanced
input isadjustable tor input levels ranging trom 60 mVto 3 V.A high-grade limiter eliminates over-
modulation where the input level istoo high. The RF-outputsignalot the channel module isted into
the RFmasteramplitier ot the SIS1019 A 20.
The SIK 1019 A is available in 12 versions according to the 12 possible intrared channels K 0 -
K 11, which are named behind the designation (example: SIK 1019 A K 1).
The On/Oft switch W, the level control @ and the modulation control @)are situated on the front
panel.
Mechanics
- The chassis issuitable tor installationin 19"-racks.The AF-cabling is done on the tront side but
can be changed, if necesary, to the rear. As the AF-connections are accessible on the rear wiring
~P.C. board the electrical connection is easily done. The AF-sockets, which must be retrotitted, can
,Jbe installed in the rear sheet metalot the chassis or in the rack.
- After turning the plastic teet ot the metal housing by 1800 the SI1 019 A is stackable wlth other
units. For that unscrew screws A and Band turn the teet (see tig. 2 + 3).
0A
(08
(0
0
Fig.2
Fig.3
~
stallation of control transmitter
, e chassis issuitable tor installation in 19"-racks but can also be used as a desk unit Inconnec-
on with the housing SIG 1019 or the carrying case EMK 1036 (fig.4 + 5). Inany case the transmit-
ter should get enough ventilation.
Fig.4: SI1019 A+ SIG 1019 Fig. 5: SI1 019 A + EMK 1036
11
i
I 111 11
U=
J
......
...
........
Mains supply
Ex works the chassis is prepared lor operation at 220 VI 50 - 60 Hz. For operation at 110 V mains
two additional wire bridges have to be solde red in (see lig. 6
+ 7).
AF-connection
The AF-inputs are balanced and designed lor signal levels 0160 mV - 3 V.
Connectionof power radiator SZI1 019 A
The modulated RF-signal with a level 012 Vpp (source impedance 60 Q) is available at RF-output
sockets @ and @. They are decoupled lram each other and connected in parallel. The connec-
tion to the radiator is to be done with 50 Q-coaxial cable. For that Sennheiser offers the lollowing
cables: AV 20 (20 m), GZL 1019 A 10 (10m). GZL 1019 A 5 (5 m) and GZL 1019 A 1 (1 m). The si-
gnal is looped Irom the lirst radiator to the second, lram the second to the third etc. (see user's
guide SZI1 019 A). Max. 100 radiators may be connected in senes. The max. cable length between
the transmitter and the last radiator shouldn't exceed 1500 m. IIthe cable length ISmore than 300 m
the output 01the last radiator has to be terminated with 50 Q in order to prevent standing waves.
12
'~-t~,~11 I I 11I, , , , \1ijr~"
2~ ~4
Fig.6
Wiring
'1
5-pin screwable
3
3
'r
f
2
)}
Fig.7
3
1 Radiator SZI1 019 A
2 BNC double socket GZV 1019 A
3 Cable GZL 1019 A 10
4 Control transmitter SI 1019 A
5 Cable GZL 1019 A 5
Fig. 8: Connection 01power radiator SZI1 019 A
Connectionof power radiator SZI1 019*
AF-signal 60 mV - 3 V; balanced
The sockets (ii) and @ allow the connection 01radiators,type SZI1 019, the predecessor 01the
SZI1 019 A. Its power requirements are 32 V 11 A whlch are supplied by the contra I transmitter.
The power supply module can supply one radiator. II more than one radiator ISto be connected
the power supply unlt GZN 1019-1 * must be used. Thls unit can power up to lour SZI1 019.
* no more available
Wiring of sockets
(ii) and @
RF-signal
)
I
I
32 V
+
Operation
After all cable connections have been established actlvate the set with switch @ and the channel
modules with switch CD.
Note: Unused channel modules should be sWltched off, as in multi-channel units the total radiation
power is splitted evenly between all channels. This means that the covered area will be reduced
in accordance to the number 01channels in use.
13
I
Adjustment of modulation
For adjusting the modulation each chan ne I module is equipped with a sensitivity control @.The
optimum adjustment is reached when the red LED-s of the modulation indicator @)light up at level
peaks. If, inspite of correct adjustment, the input signal exceeds its normal value for short periods, a
high quality limiter prevents overmodulation. Up to 30 dB overmodulation will be controlled without
increasing distortion. The limitation is even useful in some cases, for example if facing widely differ-
ing sound levels.
Enlargement of the 9-channel-system to 12 channels
For enlarging an existing 9-channel-system to 12 channels a second chassis SIC 1019 A 20,
apower supply module SIS 1019 A 20, three channel modules SIK 1019 A and six cover plates
SIB 1019 are necessary. Both chassis are to be linked by interconnecting the L sockets @ of both
units.
The radiators can be connected to elther the first or the second transmitter, as the output signal of
both transmitters is identical.
811019A
811019A
~
~
0
GZL 1019 A 1
GZL 1019A 10
8 x 8Z11019 A
Fig. 9: Principle installation of a 12-channel system
14
)1
Fault diagnosis
Fault
Cause
Remedy
LED @ resp. CD
does not light up.
Channel module or
I
a. Switch of chan ne I modules one by one until LED
power supply module lights up again. The module which makes the
is defective. LED light up has to be replaced or repaired.
b.lf measure a. fails check power supply.
PowersupplymoduleI Replaceorrepairmodule.
IS defective.
LED @does not light
up.
No function.
Mains fuse blown.
Change fuse:
0.8 AT for 220 V mains supply
1.6 ATfor 11O V mains supply
'[~
Number of channels .
Transmlftmg frequencies (kHz)
9 (can be enlarged fo 12)
55=KO / 95=K1 /135= K2/ 175=K3
215=K4 / 255= K5/ 295= K6 / 335=K7
375=K8 / 415= K9 / 495= K10 / 535=K11
FM
:1:6/:1:7 kHz
LEDarray
with Ilmiter ampllfler
balanced
10 kQ
60 mV ...3 v, adfustable
50...7000 Hz
3%
60 Q
110/220v.50- 60 Hz,change of internal
solder bridge
0,8A tor 220 V
1,6A for 110 V
Modulation. . . .
Nominal swing / peak swing
Modulation control . ..
Overmodulation protectlon .
Audlo inputs.
Input Impedance
Input sensltivity . .
Audio frequency range. . . . .
THD at 1 kHzand nominal SWing
RF-output impedance
Power supply
Mains fuse .
Power consumption (fully equlpped
with 9 channel modules)
Dimensions in mm
SIC 1019A20
SIG 1019 A 20 . . . . . .
Weight (completely equipped)
max. 70 W
132 x 483 x 259,5
152,5 x 504 x300
approx. 12 kg
We reserve the right to alter speciflcatlons, in particular with regard to technical improvements.
i;'~
15
1111I 11
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Sennheiser Infrared Control Transmitter SI 1019 A User manual
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