Sony WRR-855A Manuale utente

3-810-586-12(1)

UHF Synthesized Tuner Unit

WRR-855A

Model:

Operating Instructions

Before operating the unit, please read this manual thoroughly

and retain it for future reference.

1995 by Sony Corporation [U64] [U66] [U68]

Table of Contents

Owner’s Record

The model and serial numbers are located at the rear of the

unit. Record the serial number in the space provided below.

Refer to these numbers whenever you call upon your Sony

dealer regarding this product.

Model No. WRR-855A Serial No.

You are cautioned that any changes or modifications not

expressly approved in this manual could void your authority

to operate this equipment.

Notice for customers in Canada:

Use of Sony wireless devices is regulated by the

Industry Canada as described in their Radio Standard

Specification RSS-123.

A licence is normally required. The local district office of

Industry Canada should therefore be contacted. When the

operation of the device is within the broadcast band, the

licence is issued on no-interference, no-protection basis with

respect to broadcast signals.

Avis pour les clients au Canada:

L’usage des appareils sans-fil Sony est réglé par l’Industrie

Canada, comme décrit dans leur Cahier des Normes

Radioélectriques CNR-123. Une licence est normalement

requise. Le bureau de l’Industrie Canada doit être contacté.

Lorsque l’opération de l’appareil est dans les limites de la

bande de radiodiffusion, la licence est émanée sur la base

de non-interférence, non-protection avec les signaux de

radiodiffusion.

Overview........................................................................... 3

Features ........................................................................ 3

System Configuration .................................................. 4

Parts Identification .......................................................... 5

WRR-855A .................................................................. 6

BTA-801 Portable Tuner Mount Adapter (Optional) .. 7

Preparations ..................................................................... 8

Mounting to a Portable Tuner Mount Adapter ............ 8

Connecting the Power Cable........................................ 9

Attaching the Antennas................................................ 9

Setting ............................................................................. 10

Channel Selection ...................................................... 10

Selecting and Releasing the T (Tone Squelch) OFF

Mode .......................................................................... 13

Wireless Channel Selectable ......................................... 14

Guidance on Use of Multi-Channel System .............. 14

Wireless Channel Lists (1) – For 68-Version Model

Using TV Channels 68 and 69 ................................... 15

Wireless Channel Lists (2) – For 66-Version Model

Using TV Channels 66 and 67 ................................... 18

Wireless Channel Lists (3) – For 64-Version Model

Using TV Channels 64 and 65 ................................... 21

Attaching and Connecting to a Betacam ..................... 24

Precautions ..................................................................... 26

Messages on the Display................................................ 27

Specifications................................................... Back cover

Overview

Versatile display

A variety of information is obtained at a glance on the

upper panel, such as the reception channel with the liquid-

crystal display, and RF input level and audio level with the

respective LEDs.

Compact and lightweight

Innovative, high-density mounting technology has enabled

the creation of this compact, lightweight tuner. Using the

optional BTA-801 Portable Tuner Mount Adapter in

combination, the WRR-855A can be easily attached to a

Betacam-series Camcorder.

Weatherproof structure

By properly mounting the WRR-855A to the optional BTA-

801 Portable Tuner Mount Adapter and attaching the two

supplied antennas, a weatherproof structure is obtained.

Muting ON/OFF function

You can activate or deactivate the muting function to suit

your needs.

Tone-squelch circuit for noise elimination

The unit uses a built-in squelch circuit to selectively receive

the desired RF carrier accompanied by the tone signal from

the transmitter.

Compander system

A compander (compressor/expander) system enables

stabilized wireless transmission over a wide dynamic range.

The WRR-855A UHF Synthesized Tuner Unit in use with

an optional Portable Tuner Mount Adapter, such as the

BTA-801, provides a highly reliable portable diversity

tuner for the 800 MHz band Sony UHF wireless

microphone system, which uses the frequency bands

allocated for UHF TV broadcasting.

This tuner enables the application of multiple channels over

unused television channels through the use of the built-in

Sony original channel plan.

Features

Phase Locked Loop (PLL) Synthesized System

The WRR-855A with its refined PLL synthesized circuit

can operate on 94 wireless channels.

Preset wireless channel groups for easy multichannel

operation

In addition to a group allowing all 94 wireless channels to

be selected, the WRR-855A has six preprogrammed groups,

that is, a combination of wireless channels which permits

simultaneous operation of multiple channels without

intermodulation.

Space diversity reception system

The WRR-855A provides stable signal reception with only

a minute amount of dropout.

System Configuration

The WRR-855A can be used with the WRT-807A/810A/

830A/867A UHF synthesized wireless microphone or

WRT-808A/820A/822A/860A UHF synthesized

transmitter.

Overview

Sony 800 MHz band system models

a) These models cover only 68 and 69 channels.

b) For these models, the AN-820A UHF antenna and the WD-820A UHF antenna divider are required.

WRR-855A

a) a)

Frequency band Model name

Model TV

channel Frequency (MHz) Transmitter or

microphone Tuner

U64 64 770.125 - 775.875 WRT-807A

WRT-808A

WRT-810A

WRT-820A

WRT-822A

WRT-830A

WRT-860A

WRT-867A

WRR-810A

WRR-820A

WRR-840A

WRR-850A

WRR-860A

65 776.125 - 781.875

U66 66 782.125 - 787.875

67 788.125 - 793.875

U68 68 794.125 - 799.875

69 800.125 - 805.875

UHF SYNTHESIZED

TUNER UNIT WRR-855

OFF

MUTING

POWER

–

GP/CH

RF AF

Parts Identification

5Accessory connector

1ANT connectors

2POWER switch

3MUTING switch

8Liquid-crystal display

6GP button

!¡ AF indicator

!™ RF indicator

7CH button

9+ button

0– button

WRR-855A

BTA-801 Portable Tuner Mount Adapter (optional)

!£ DC 12V IN connector

!¢ Betacam attachment

knob

!∞OUTPUT connector

4Mounting screws (4)

5Accessory connector

For the signal and power connections with the BTA-801.

6GP (group set) button

Press and hold down for at least one second to go to the

group selection mode, and the group number flashes on the

display.

See “Setting” on page 10.

7CH (channel set) button

Press and hold down for at least one second to go to the

channel selection mode and the channel number flashes on

the display.

See “Setting” on page 10.

8Liquid-crystal display

When you turn the power ON, the “HELLO” message

appears, then the tuner unit goes to normal display mode.

9+ button / 0– button

Press to select the group and channel numbers to be

received.

See “Setting” on page 10.

1: AF GND

2: AF OUTPUT

4: DC +7V

5: GND

Pin assignment

Parts Identification

WRR-855A

1ANT (antenna) connectors

Connect the two supplied antennas to these connectors.

2POWER switch

Turns the power ON/OFF.

3MUTING switch

Turns the muting ON/OFF. The muting level is fixed at

10 dBµ.

Note

If you turn off the muting when the tuner is in standby

condition for signal receiving or when the RF input level is

low, noise may be heard or the connected device or

speakers may be damaged. Be sure to operate this switch

only after minimizing the input of the connected device.

4Mounting screws

Used to secure the WRR-855A to the BTA-801.

For mounting, see “Mounting to a Portable Tuner Mount

Adapter” on page 8.

!¢ Betacam attachment knob

Used to fix the unit to a Betacam.

For attaching the unit to a Betacam, see page 24.

!∞OUTPUT connector (XLR 3-pin, male)

Supplies audio signals. You can connect this to the

microphone input connector of a Betacam, mixer, tape

recorder or other similar equipment.

Note

When connecting to an audio mixer which has a Phantom

powering capability for microphones, it is recommended to

use the mixer with the Phantom power OFF.

!¡ AF (audio frequency level) indicator

Lights when an audio signal greater than the reference level

is output.

!™ RF (radio frequency input level) indicator

Displays the strength of the input signal.

Lights in green: Higher than 25 dBµ

Lights in red: 10 to 25 dBµ

Goes off: Lower than 10 dBµ

BTA-801 Portable Tuner Mount Adapter

(Optional)

!£ DC 12V IN (power input) connector

Connect to an external power supply (DC 10 to 17 V) of a

Betacam using the DC power cable supplied with the BTA-

801.

Note

Be sure to check the operating voltage and polarity when

connecting to a power source.

Pin assignment

1: GND

2: HOT

3: COLD

Pin assignment 1: GND

2: NC

3: NC

4: +12 V

Mounting to a Portable Tuner Mount

Adapter

This section shows you how to moung the WRR-855A to

the BTA-801 Portable Tuner Mount Adapter for example.

By properly mounting the WRR-855A to the BTA-801 and

attaching the two supplied antennas, a weatherproof

structure is obtained.

Before mounting

Be sure to clean the abutting surfaces of the WRR-855A

and the BTA-801 before mounting.

Procedure to mount to the BTA-801

1Observing the direction, insert the WRR-855A in the

BTA-801.

2Push the WRR-855A until the accessory connector

clicks into place.

3Run in the four mounting screws little by little in turn to

gradually secure the units together, then tighten them.

Preparations

WRR-855A

BTA-801

Connecting the Power Cable

Connect the DC 12 V IN connector of the BTA-801 to the

DC OUT connector of a Betacam-series Camcorder using

the DC power cable supplied with the BTA-801.

Attaching the Antennas

Attach the supplied antennas to the two ANT connectors.

DC power cable

(supplied with the BTA-801)

Match the connector pins

with the inside of the

connector and insert.

2Turn to lock.

1Align the protruding part

of the connector with the

antenna slot.

BTA-801 (bottom)

To remove: Pull the metal part of the connector in the

direction of the arrow and remove.

Setting

Operations

1Turn the POWER switch ON.

After the “HELLO” message, the tuner status shown

before the tuner was previously turned OFF appears on

the display.

Note

POWER switch operation should be performed after

disconnecting the input from connected equipment, as noise

will be heard if the switch is turned ON or OFF beforehand.

2Press and hold the GP button down for more than one

second.

The tuner goes to the group selection mode and the

group number flashes.

Channel Selection

Notes

Take the following precautions to prevent interference and

noise.

• Do not simultaneously use two or more microphones and

transmitters that are set to the same channel.

• When simultaneously using two or more tuners, always

set the tuners that use the same groups (other than group

00) to different channels in that group.

• The reception antennas and transmitter should be used at

least 3 meters away from each other.

Operations

UHF SYNTHESIZED

TUNER UNIT WRR-855

OFF

MUTING

POWER

–

GP/CH

RF AF

3,5

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