Sony MB-806A User manual

1999 Sony Corporation [CE] [AU]
Tuner Base Unit
3-867-235-23(1)
MB-806A
Operating Instructions GB
Bedienungsanleitung DE
Wireless Channel Lists/Übertragungskanallisten

WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
To avoid electrical shock, do not open the
cabinet. Refer servicing to qualified
personnel only.
English

1(GB)
Table of Contents
Precautions....................................................... 1
Overview ........................................................... 2
Features ............................................................. 2
System Configuration........................................ 3
Channel Plan ..................................................... 3
Location of Parts and Controls....................... 4
Front Panel ........................................................ 4
Display .............................................................. 4
Rear Panel ......................................................... 5
Installing a WRU-806A/WRU-806B
Tuner Unit..................................................... 6
Connections ..................................................... 7
Basic Connections ............................................. 7
Connection for Multichannel Operation ........... 7
Channel Setting................................................ 8
Automatic Search and Setting of Available
Channels....................................................... 9
Operation ........................................................ 11
Muting Functions ............................................ 12
Error Messages .............................................. 13
Rack Mounting ............................................... 13
Specifications................................................. 14
Wireless Channel Lists................................. L-1
Precautions
GB
English
On operation
•The tuner must be used within a temperature range of
0°C to 40°C. Avoid using the tuner for extended
periods at extremely high temperatures or placing it
in direct sunlight, especially outdoors, because this
may damage the finish of the case. Never install the
tuner on or near a heat source, such as lighting
equipment or power amplifiers.
•Avoid using in very humid or dusty places, because
such use may shorten the life of the tuner.
•To avoid degradation of the signal-to-noise ratio, do
not use the tuner in noisy places or in locations
subject to vibration, such as the following:
–near electrical equipment, such as motors,
transformers or dimmers
–near air conditioning equipment or places subject
to direct air flow from an air conditioner
–near public address loudspeakers
–where adjacent equipment might knock against the
tuner
•Switching lights on or off may produce electrical
interference over the entire frequency range. Position
the tuner and the wireless microphones so that
interference is minimized.
•The tuner is precisely adjusted at the factory and no
adjustment before use is necessary. Do not touch the
inside of the tuner or try to repair it by yourself.
On cleaning
Clean the tuner with a dry, soft cloth. Never use
thinner, benzene, alcohol or any other chemicals, since
these may damage the finish.

2(GB)
WRU-806A/AU66 model
An 14 MHz frequency band is assigned to the MB-
806A with WRU-806A (AU66) model, permitting it to
operate on any of 102 receiving frequencies in 125-
kHz steps of Sony original channel plan in the range of
TV channel 66 and 67.
The selectable wireless channels and frequencies for this
model are listed on pages L-10 and L-11.
Features
Phase Locked Loop (PLL) synthesized
system
The tuner has a refined phase locked loop (PLL)
synthesizer circuit.
Preprogrammed wireless channel plan for
simultaneous multichannel operation
The tuner has many preprogrammed, easily settable
channels for simultaneous multichannel operation.
Modular multichannel reception
By installing optional WRU-806A/WRU-806B UHF
Synthesized Tuner Units, you can receive up to six
channels on one MB-806A unit.
Versatile display
A liquid-crystal display provides a variety of
information, including the levels of the reception
channels, RF information and transmitter battery
alarm.
Space diversity reception system
The tuner provides stable signal reception with
minimum dropout.
Overview
These operating instructions describe the MB-806A
Tuner Base Unit in which the optional WRU-806A/
WRU-806B UHF Synthesized Tuner Unit is installed.
The unit is a reliable UHF synthesized diversity tuner
for the Sony UHF wireless microphone system which
uses the frequency bands allocated for UHF TV
broadcasting.
This tuner is designed to enable simultaneous use of
multiple channels when channels are selected
according to the channel plan.
Installing six WRU-806A/WRU-806B UHF
Synthesized Wireless Tuner Units will enable six-
channel operation on the tuner.
In building up a UHF wireless microphone system, be
sure to combine a microphone/transmitter and a tuner
having the same TV channel number.
WRU-806B/CE57, CE62, and CE67 models
A 24-MHz frequency band is assigned to the MB-
806A with WRU-806B, permitting it to operate on any
of 189 receiving frequencies in 125-kHz steps of Sony
original channel plan or 960 receiving frequencies in
25-kHz steps in the range of three TV channels.
The selectable channels and frequencies for these models
are listed on the “Wireless Microphone System Frequency
List” supplied with the WRU-806B.
WRU-806A/CE62 model
A-14 MHz frequency band is assigned to the MB-
806A with WRU-806A (CE62) model, permitting it to
operate on any of 111 receiving frequencies in 125-
kHz steps of Sony original channel plan or 561
receiving frequencies in 25-kHz steps of German User
Group in the range of TV channels 62 and 63.
The selectable wireless channels and frequencies for this
model are listed pages L-3 through L-8.
WRU-806A/CE69 model
An 8-MHz frequency band is assigned to the MB-
806A with WRU-806A (CE69) model, permitting it to
operate on any of 64 receiving frequencies in 125-kHz
steps of Sony original channel plan in the range of TV
channel 69 or 14 receiving frequencies in 25-kHz steps
of UK General Use.
The selectable wireless channels and frequencies for this
model are listed on page L-9.

3(GB)
Tone squelch circuit for noise elimination
A built-in squelch circuit eliminates noise and signal
interference when the tuner is in signal reception
standby mode.
Compander system
A compander (compressor/expander) system enables
stabilized wireless transmission over a wide dynamic
range.
Rack mounting
The MB-806A can be mounted in an EIA standard 19-
inch rack (1 U size).
Channel Plan
The tuner stores several groups of channels. See
“Overview of Channel Plan” in the “Wireless Channel
Lists” section.
Channel groups other than group 00 are designed so
that all channels of one group can be used
simultaneously within the same UHF wireless
microphone system without causing intermodulation.
It is therefore recommended that you usually use a
channel group other than group 00 unless the use of
group 00 is specifically necessary.

4(GB)
CH
GP
ON
OFF
POWER
+
–
GP CH
12 3 45 6
BATTAF
RF
1POWER switch
2GP button
3CH button
4+ button
5– button
6Display
Front Panel
Display
Location of Parts and Controls
1AF (audio frequency) indicator
2AF (audio frequency) level indications
The indicator lights and the indications appear when
the audio output level is higher than the reference
level.
1POWER switch
Turns the power on and off.
2GP (group) button
To change the group, press the + or – button while
holding this button down.
3CH (channel) button
To change the channel in a group, press the + or –
button while holding this button down.
4+ button
To go to a higher group or channel, press this button
while holding the GP or CH button.
Press this button changes the indication from GP/CH
to frequency.
5GP/CH indication
1AF indicator
2AF level indications
3BATT indicator
4BATT indication
6RF level indications
7RF indicator
5– button
To go to a lower group or channel, press this button
while holding the GP or CH button.
6Display
Displays the status of the tuner and the group and
channel assigned to the unit.
For details, see the following section “Display”.
7Blank panels
Remove these panels to install optional WRU-806A/
WRU-806B UHF Synthesized Tuner Units.
3BATT (battery) indicator
4BATT (battery) indication
Indicate the condition of the wireless microphone
transmitter batteries. The indicator and indication
appear and start flashing about one hour before the
transmitter batteries go flat.
The time at which flashing begins will depend on the
type of battery used in the transmitter, and its
condition.
5GP/CH (group/channel) indication
Shows the reception channel group and respective
channel number.
Pressing the + button changes this indication to the
frequency indication.
6RF (radio frequency) level indications
7RF (radio frequency) indicator
The indicator lights and the indications (dots) appear
when the antenna reception is optimal. Depending on
the RF input level, the number of dots changes.
GP CH
BATTAF
RF
7Blank panels

5(GB)
ANTENNA B TUNER OUTPUT MIX OUTPUT
IN(DC 9V OUT)
ATT
0
6
10dB
AC IN
OUTPUT
LEVEL
LINE
–20dBm
MIC
–58dBm
⁄
ANTENNA A
IN(DC 9V OUT)
ATT
010dB
5 4 3 2 1
3AC IN connector
4OUTPUT LEVEL switch
5MIX OUTPUT connector
6TUNER OUTPUT connectors
2ANTENNA A, B ATT switches
Rear Panel
1ANTENNA A, B IN/DC 9V OUT (antenna A, B
input/DC power output) connectors (BNC type)
Connect the supplied antenna or an optional AN-820A
UHF Antenna. To connect two of these units, these
connectors are connected to the ANTENNA OUT
connectors of the WD-820A UHF Antenna Divider.
When the AN-820A is connected, 9 V DC power is
supplied to the antenna’s internal booster through these
connectors.
Note
Never short-circuit these connectors.
2ANTENNA A, B ATT (attenuation) switches
Select the RF attenuation as 0 dB or 10 dB.
Usually set the switches to 0 dB. If noise generates or
sound discontinues due to interference, set the
switches to 10 dB.
It is recommended that you set the switches as follows
depending on the antennas connected to the
ANTENNA A, B IN/DC 9V OUT connectors.
Using the supplied antenna: 0 dB
Using an optional AN-820A UHF Antenna (with a
WD-820A Antenna Divider): 10 dB when the coaxial
cable (5D-2V, RG-212/U or equivalent) connecting the
antennas and tuner is 30 m (100 feet) or less, or 0 dB
when the cable is over 30 m (100 feet)
3AC IN connector
Connects to an AC power source with the supplied AC
power cord.
4OUTPUT LEVEL switch
Selects the mixed output level and tuner output level as
–20 dBm or –58 dBm.
Set this switch according to the input level of the
equipment connected to the unit.
5MIX OUTPUT connector (XLR type)
Supplies mixed audio signals of six tuner units. You
can connect this to the audio input connector of a
mixer, amplifier or similar equipment.
6TUNER OUTPUT (tuner sound output) (XLR
type)
Each connector supplies the audio signal from the
corresponding tuner unit. You can connect this to the
audio input connector of a mixer, amplifier, or similar
equipment.
1ANTENNA A, B IN/DC 9V OUT connectors

6(GB)
Lever
Bottom Panel
Up to six WRU-806A/WRU-806B UHF Synthesized
Tuner Units can be installed.
Notes
•Be sure to power this unit off before installing the
WRU-806A/WRU-806B.
•The buttons and display on the front panel of the
WRU-806A/WRU-806B may be damaged if they are
gripped too strongly. Always hold the WRU-806A/
WRU-806B by the side.
•Do not touch the connectors on the rear panel of the
WRU-806A/WRU-806B.
•Be careful of static electricity.
Installing a WRU-806A/WRU-806B
1Hold the WRU-806A/WRU-806B by the side and
insert into the slot. Push in until you hear a click.
2To install two or more units, detach the necessary
number of blank panels by pushing in the top and
bottom tabs of each panel and pulling the panel
out. Then do step 1 for each unit.
Installing aWRU-806A/WRU-806BTuner Unit
Removing a WRU-806A/WRU-806B
On the bottom panel of the tuner, locate the lever
corresponding to the slot where the WRU-806A/
WRU-806B is installed and pull the lever forward.
The WRU-806A/WRU-806B is ejected from the slot.

7(GB)
A
B
AN-820A UHF
Antenna
ANTENNA B IN ANTENNA A IN
MB-806A
TUNER OUTPUT MIX OUTPUT
Connect output A or B
to a mixer or an
amplifier.
AC IN
Power cord
(supplied) To AC power source
When using 1 to 6 channels
When using 7 channels or more
Connections
Basic Connections
Connection for Multichannel Operation
Notes
•Make sure to use a pair of antennas.
•Make the antenna tips point upward.
AN-820A UHF Antenna
WD-820A UHF
Antenna Divider
ANTENNA B IN
ANTENNA A INMB-806A
ANTENNA B IN
ANTENNA A IN
TUNER OUTPUT
ANTENNA B IN
MIX OUTPUT
MB-806A
To AC power
source
To AC power
source
To AC power
source
Power cord
(supplied)
Power cord
(supplied)
ANTENNA A IN
TUNER OUTPUT MIX OUTPUT
Connect output A or B
to a mixer or an amplifier.
or Antenna (supplied)
A
B

8(GB)
12,3,4
3,4
2
ON
OFF
POWER
1
CH
GP +
–
GP CH
BATTAF
RF
Take the following precautions to prevent interference
and noise.
•If there is a TV broadcasting station nearby, to avoid
possible interference from its broadcasting, do not
use that station’s channel.
•When simultaneously using two or more tuners,
always set the tuners to different channels within the
same group (other than group 00).
1Turn the POWER switch on.
The model version number such as “CE62” or
“CE67” appears on the display, and then the
current tuner status is displayed.
Note
Turn the POWER switch on after reducing the
volume of equipment connected to the TUNER
OUTPUT connector. Otherwise, noise will be
heard when the power is turned on.
2Press and hold down the GP button, and press the
+ or – button to select a group.
Each time you press the + or – button, the GP
indication changes as shown in the following
figure. To change the indication continuously,
press and hold down the + or – button.
The CH indication shows the lowest frequency
channel of the selected group. For group 00,
however, the channel selected last is displayed.
Releasing the buttons automatically cancels the
group and channel selection mode, and the
currently displayed group is selected.
See “Wireless Channel Lists” on page L-1 (for WRU-
806A users) or refer to “Wireless Microphone System
Frequency List” supplied with the WRU-806B (for
WRU-806B users).
Channel Setting
GP CH GP CH
Display example of WRU-806B (CE62 model)
–+
GP CH GP CH
Display example of WRU-806A (CE62 model)
GP CH GP CH
Display example of WRU-806A (AU66 model)
–+
–+

9(GB)
3Press and hold down the CH button, and press the
+ or – button in 3 seconds to select a channel.
Similar to step 2, each time you press the + or –
button, the CH indication changes in the order
shown in the group and reception channel list.
See “Wireless Channel Lists” on page L-1 (for WRU-
806A users) or refer to “Wireless Microphone System
Frequency List” supplied with the WRU-806B (for
WRU-806B users).
If you press the + button when the last channel of
the selected group is displayed, the first channel of
the group will be displayed.
Selecting the reception channel by frequency
Press the + button.
This changes the GP/CH indication to a frequency
indication.
To change a frequency, press the + or – button
while keeping the CH button pressed. (A higher or
lower frequency will be displayed.)
Press the + button again to change the frequency
indication to a GP/CH indication.
4If the desired channel or frequency is displayed,
release the CH button and + or – button.
The selected channel is set.
To store the selected group and channel
Leave the indication unchanged for 1 second.
The group and channel set in the procedure explained
above are stored in memory.
Automatic Search and Setting of
Available Channels
When you use the MB-806A Base Unit in a multi-
channel operation system, you can assign available
channels to all tuner units by operating the first tuner
unit only.
Note
Auto channel assignment function is available only
when the tuner base unit holds the tuner units in the
same TV channels.
1Power off all wireless microphones and
transmitters.
2On the first tuner unit, select the group to be used.
3Press the CH button on the first tuner unit and hold
it down for 3 seconds.
The first tuner unit searches for available channels
in the selected group, and available channels in the
group are so assigned to all tuner units
automatically that two or more tuner units may not
use the same channel.
After automatic setting, you can adjust the groups
and channels of individual tuner units.
Notes
•Do not use group 00.
•If no channels are available, “NO CH” is displayed
and channel setting is aborted.
GP CH GP CH
–+
Display example of WRU-806B (CE62 model)
GP CH GP CH
Display example of WRU-806B (CE62 model)
–+

10(GB)
When using two MB-806A Base Units
When you use two base units, proceed as follows to
ensure that the two tuner units do not use the same
channel settings.
1Follow the procedure explained above to set the
group and channel of the first base unit.
2Power on the wireless microphones or transmitters
after adjusting them to the channels of each tuner
unit.
Note
If the microphones or transmitters are not powered
on, the two tuner units may use the same channel
twice.
3On the first tuner unit of the second base unit, set
the same group as selected on the first base unit.
4Press the CH button of the first tuner unit on the
second base unit and hold it down for 3 seconds.
Available channels in the same group (channels
not used by the first base unit) are automatically
set on the first tuner unit and the other tuner units
on the second base unit.
Note
If automatic channel setting dose not function well for
the second base unit (due to poor reception), set
channels manually for the second base unit.

11(GB)
1 2
3
+
–
UHF synthesized
wireless
microphone UHF synthesized
transmitter
Connect the output signals to a mixer or an
amplifier (see page 7).
Operation
1Turn the POWER switch on.
Note
Turn the POWER switch on after reducing the
volume of the equipment connected to the TUNER
OUTPUT connector. Otherwise, noise will be
heard when the POWER switch is turned on.
2Set the reception channel.
For details on setting the channels on the tuner, see
“Channel Setting” on page 8.
3Turn on the wireless microphone or transmitter.
Use the wireless microphone or transmitter to
which the same channel is assigned as to the tuner.
If noise is heard
Depending on the environment where the system is
installed, outside noise or radio wave may disrupt the
transmission of certain channels.
To select a channel under this circumstance, turn off
the wireless microphone and transmitter. Then select a
channel at which the RF indicator is off. (A channel
free from noise or radio wave interference is selected.)
Set the same channel on the microphone or transmitter.
Note
To eliminate interference or noise, please note the
following.
•Do not use two or more wireless microphones or
transmitters whose wireless channels are the same.
•Separate the reception antennas and the transmitter by
more than 3 meters.
•The number of wireless microphone channels
actually usable in a multi-channel system may be
smaller than the normal capacity of that system if
there is interference from TV broadcasting or other
RF signals.
•When operating two or more UHF wireless
microphone systems using the same wireless channel
in the same group, ensure that the systems are at least
100 m1) apart as far as they are installed within sight
of each other.
1) The distance depends on the operating environment and
conditions.
..........................................................................................................................................................................................................

12(GB)
Muting Functions
This tuner has the following three muting functions,
which work in combination.
(1) Muting by RF input level
As sufficient S/N for the audio output may not be
obtained if no RF signal is received or the RF input
level is low, the audio output can be muted when the
RF input level falls below the muting level.
(2) Tone squelch
The audio output is obtained only when the tuner
receives an RF signal which includes a specified tone
signal. The audio output is muted to eliminate noise
which may be heard when the transmitter is turned on/
off or the tuner receives an interference RF signal.
(3) Noise squelch
The audio output is muted to eliminate noise which
may be heard when there is such excessive
interference RF signal that the tone squelch does not
work.
To turn off the muting functions
While holding down the GP and CH buttons, turn the
POWER switch to ON. All indications momentarily
appear, then go off. “OFF” is then displayed. This
procedure cancels all three muting functions at the
same time.
To turn on the muting functions
Turn the POWER switch to OFF, then to ON again.
The three muting functions are activated at the same
time.

13(GB)
Error Messages
2
1
Pin
Rack
Foot
Remove the pins inside the feet
with a small screwdriver or similar
tool.
Bottom panel
Screws
Tuner
1Remove the feet of the tuner before mounting it on
a rack.
2Mount the tuner on the rack using screws that are
at least 12 mm long and that match the diameter of
the screw holes on the rack.
Rack Mounting
Contact your nearest Sony dealer.
Message Meaning Remedy
Err 01 An error has occurred in the backup
memory data.
Err 02 The PLL-synthesized circuit has a
malfunction. Contact your nearest Sony dealer.
NO TONE As no tone signal is available or a
tone signal other than 32.768 kHz is
being received, the audio signal
output is muted.
Make sure thta the transmitter is turned on. If it is, then the
problem lies in the transmitter’s tone signal generator or the
tuner’s tone squelch circuit. Contact your nearest Sony dealer.
If you are using a WRT-810A (AU66) wireless microphone, a
“NO TONE” message appears when you turn off the AF switch,
but this is normal.
Apart from the normal indications, the following error
messages may appear on the display.

14(GB)
1) 0 dBµ = 1 µVEMF
2) 0 dBm = 0.775 Vrms (600 ohms loaded)
Tuner (with WRU-806A or WRU-806B)
Reception type Space diversity
Circuit system Dual conversion superheterodyne
Operating frequency range (MB-806A alone)
758 to 862 MHz
Reception frequencies
Refer to the Operating Instructions
supplied with the WRU-806A or
WRU-806B, respectively
Local oscillators Crystal controlled PLL synthesizer
Selectivity 60 dB or more (at ±250 kHz
detuned)
Spurious rejection ratio
70 dB or more
Image rejection ratio
60 dB or more
Muting level 30 dBµ1)
Antenna connectors
BNC-R type (2), 50 ohms
Frequency response
100 to 15,000 Hz ±3 dB
De-emphasis 50 µs
Signal-to-noise ratio
40 dB or more at an A-weighted
RF input level of 20 dBµ
60 dB or more at an A-weighted
RF input level of 60 dBµ
(±5 kHz deviation at 1 kHz
modulation)
Distortion 1% or less (±40 kHz deviation at
1 kHz modulation)
Tone signal frequency
32.768 kHz
Output level
LINE –20 dBm2) (±5 kHz deviation at
1 kHz modulation)
MIC –58 dBm (±5 kHz deviation at
1 kHz modulation)
Mix output level
LINE –20 dBm (±5 kHz deviation at
1 kHz modulation)
MIC –58 dBm (±5 kHz deviation at
1 kHz modulation)
Output impedance 150 ohms
Output connectors XLR-3-32 type
Specifications
General
Power requirements
100 to 240 V AC, 50/60 Hz
Power consumption
30 W
Power supply for antenna boosters
9 V DC (max. 100 mA)
Operating temperature
0°C to 40°C
Storage temperature
–20°C to +55°C
Dimensions 482 ×44 ×300 mm (w/h/d)
Mass Approx. 3.6 kg (without tuner
units)
Accessories supplied
AC power cord (1)
Antennas (2)
Operating Instructions (1)
Design and specifications are subject to change
without notice.
..........................................................................................................................................................................................................

2
VORSICHT
Um Feuergefahr und die Gefahr eines
elektrischen Schlages zu vermeiden, darf
das Gerät weder Regen noch Feuchtigkeit
ausgesetzt werden.
Um einen elektrischen Schlag zu
vermeiden, darf das Gehäuse nicht
geöffnet werden. Überlassen Sie
Wartungsarbeiten stets nur qualifiziertem
Fachpersonal.
Deutsch

1(DE)
Inhaltsverzeichnis
Zur besonderen Beachtung ............................ 1
Überblick ........................................................... 2
Merkmale .......................................................... 2
Bestandteile ....................................................... 3
Kanalplan .......................................................... 3
Lage und Funktion derTeile............................ 4
Vorderseite......................................................... 4
Display .............................................................. 4
Rückseite ........................................................... 5
Einbau einer EmpfangseinheitWRU-806A/
WRU-806B .................................................... 6
Anschluß........................................................... 7
Grundlegender Anschluß................................... 7
Anschluß für Mehrkanalbetrieb ........................ 7
Kanalwahl ......................................................... 8
Automatische Suche und Einstellung der
verfügbaren Kanäle ...................................... 9
Betrieb............................................................. 11
Rauschsperre ................................................... 12
Fehlermeldungen ........................................... 13
Einbau in ein Gestell...................................... 13
Technische Daten........................................... 14
Übertragungskanallisten .............................. L-1
Zur besonderen Beachtung DE
Deutsch
Betrieb
•Das Gerät ist für Umgebungstemperaturen zwischen
0 °C und 40 °C ausgelegt. Betreiben Sie es nicht
längere Zeit bei hohen Temperaturen. Insbesondere
beim Betrieb im Freien sollte darauf geachtet werden,
daß das Gerät keinem prallen Sonnenlicht ausgesetzt
ist. Starkes Sonnenlicht schadet dem Gehäuse. Stellen
Sie das Gerät auch nicht in die Nähe von Lampen,
Verstärkern oder anderen wärmeabstrahlenden
Geräten.
•Halten Sie das Gerät von Feuchtigkeit und Staub fern,
um eine lange Lebensdauer sicherzustellen.
•Achten Sie darauf, daß das Gerät keinen Vibrationen
ausgesetzt ist. Stellen Sie es nicht an folgende Plätze,
da sonst Störgeräusche auftreten können:
–Nähe von Motoren, Transformatoren, Dimmern
oder anderen elektrischen Komponenten
–Nähe von Klimaanlagen und Luftauslässen von
Klimaanlagen
–Nähe von Lautsprechern
–Plätze, an denen das Gerät an andere
Komponenten anstößt
•Beim Ein- und Ausschalten des Lichtes können auf
allen Frequenzen Störgeräusche auftreten. Betreiben
Sie den Tuner und die Mikrofone an Plätzen, an
denen solche Störgeräusche möglichst gering sind.
•Das Gerät wurde werkseitig exakt abgeglichen. Vor
dem Betrieb sind keinerlei Einjustierungen
erforderlich. Öffnen Sie das Gerät nicht und
versuchen Sie nicht, das Gerät selbst zu reparieren.
Reinigung
Verwenden Sie zum Reinigen ein trockenes, weiches
Tuch. Verdünner, Benzin, Alkohol und Chemikalien
dürfen nicht verwendet werden, da sie das Gehäuse
angreifen.

2(DE)
Diese Bedienungsanleitung beschreibt die Tuner
Base Unit MB-806A mit eingebautem optionalem
UHF-Tuner WRU-806A/WRU-806B.
Dieser Tuner dient zum Empfang der Signale eines
Sony UHF-Mikrofonsystems. Dank der Diversity-
Funktion gewährleistet der Tuner einen zuverlässigen
Empfang.
Wenn die Kanäle entsprechend des Kanalplans
gewählt werden, ist ein simultaner Betrieb auf
mehreren Kanälen möglich.
In den Tuner können sechs UHF-Empfangseinheiten
WRU-806A/WRU-806B eingebaut werden. Es ist
dann ein Betrieb auf sechs Kanälen möglich.
Achten Sie bei der Zusammenstellung eines UHF-
Mikrofonsystems darauf, daß Mikrofon/Sender und
Tuner dieselbe TV-Kanalnummer besitzen.
Modelle WRU-806B/CE57, CE62 und CE67
Dem MB-806A mit WRU-806B ist ein 24-MHz-
Frequenzband zugeordnet, womit unter Sonys
Kanalplan 189 Empfangsfrequenzen in 125-kHz-
Schritten zur Verfügung stehen, oder 960
Empfangsfrequenzen in 25-kHz-Schritten im Bereich
von drei Fernsehkanälen.
Die für diese Modelle verfügbaren Kanäle und Frequenzen
sind in der “Frequenzliste für das UHF-Mikrofonsystem”
aufgeführt, die zum Lieferumfang des WRU-806B gehört.
Modell WRU-806A/CE62
Die Kanäle des Modells MB-806A mit WRU-806A
(CE62) erstrecken sich über einen 14 MHz breiten
Frequenzbereich. Dieses Modell besitzt 111
Empfangsfrequenzen mit 125-kHz-Raster (nach Sony
Kanalplan) bzw. 561 Empfangsfrequenzen mit 25-
kHz-Raster im Bereich der TV-Kanäle 62 und 63
(nach der deutschen Benutzergruppe).
Die wählbaren Kanäle und die Frequenzen dieses Modells
finden Sie in den Tabellen von Seite L-3 bis L-8.
Modell WRU-806A/CE69
Die Kanäle des Modells MB-806A mit WRU-806A
(CE69) erstrecken sich über einen 8 MHz breiten
Frequenzbereich.
Dieses Modell besitzt 64 Empfangsfrequenzen mit
125-kHz-Raster im TV-Kanal 69 (nach Sony
Kanalplan) bzw. 14 Empfangsfrequenzen mit 25-kHz-
Raster (nach Kanaplan für allgemeine Verwendung in
Großbritannien).
Überblick
Die wählbaren Kanäle und die Frequenzen dieses Modells
funden Sie in den Tabellen von Seite L-9.
Merkmale
PLL-Synthesizersystem (Phase Locked
Loop)
Der Tuner ist mit einem modernen PLL-Synthesizer-
Schaltkreis ausgestattet.
Fest gespeicherter Kanalplan für
simultanen Mehrkanalbetrieb
Eine große Anzahl von Kanälen ist im Tuner fest
einprogrammiert. Mit den Bedienungselementen auf
der Vorderseite können diese Kanäle bequem
eingestellt werden.
Modulare Empfangseinheiten für
Mehrkanalbetrieb
Wenn zusätzliche UHF-Empfangseinheiten WRU-
806A/WRU-806B in den Tuner eingebaut werden, ist
ein simultaner Empfang von bis zu sechs Kanälen mit
dem MB-806A möglich.
Informatives Display
Das Flüssigkristalldisplay zeigt verschiedene
Informationen wie beispielsweise die Empfangs-
Feldstärke und eine Warnmeldung bei schwacher
Sendebatterie an.
Diversity-Funktion für stabilen Empfang in
großen Räumen
Dank der Diversity-Funktion ermöglicht der Tuner
auch in großen Räumen einen stabilen Empfang ohne
Aussetzer.
Effektive Rauschsperre
Der eingebaute Squelch-Schaltkreis unterdrückt das
Rauschen und Interferenzstörungen, wenn sich der
Tuner in Empfangsbereitschaft befindet.