Sony WRR-800A Service Manual page 6

Table of Contents
Precautions ............................................................... 2
Overview ................................................................... 3
Features ................................................................. 3
System Configuration ........................................... 4
Wirelss Channels Selectable .................................. 5
Wireless Channel Lists ......................................... 6
Location of Parts and Controls ............................... 9
Front Panel ............................................................ 9
Display ................................................................ 10
Rear Panel ........................................................... 11
Operation ................................................................ 12
Muting Functions ................................................ 13
Channel Setting ...................................................... 13
Error Messages ...................................................... 15
Specifications ......................................................... 16
Overview
Versatile display
A liquid-crystal display provides a variety of information,
including the levels of the reception channels, RF
information and transmitter battery condition.
Space diversity reception system
The WRR-800A provides stable signal reception with
minimum dropout.
Tone squelch circuit for noise elimination
A built-in squelch circuit eliminates noise and signal
interference when the WRR-800A is in signal reception
standby mode.
Compander system
A compander (compressor/expander) system enables
stabilized wireless transmission over a wide dynamic range.
4
1-2
Overview
The WRR-800A is a reliable UHF synthesized diversity
tuner for the 800-MHz-band Sony UHF wireless
microphone system which uses the frequency bands
allocated for UHF TV broadcasting.
This unit is designed to enable simultaneous use of multiple
channels when channels are selected according to the Sony
channel plan.
Features
Phase Locked Loop (PLL) synthesized system
The WRR-800A has a refined phase locked loop (PLL)
synthesizer circuit and covers two UHF TV channels. It
operates on 102 channels over a 14-MHz frequency.
Preprogrammed wireless channel plan for
simultaneous multichannel operation
The WRR-800A has many preprogrammed, easily settable
channels in a simultaneous multichannel operation. One
group allows setting of 102 channels. The unit also has 12
preset groups of channels, each of which permits ,
simultaneous operation of 5, 6, 8, 9 or 12 channels without
the effects of intermodulation.
System Configuration
The unit can be used with a Sony UHF synthesized wireless
microphone or UHF synthesized transmitter among the
models listed in the table below.
Sony 800 MHz-band system models
Frequency band Model name
Frequency
TV channel Transmitter or
(MHz)
microphone
66 792.250 to WRT-800A (66)
798.500 WRT-805A (66)
WRT-810A (66)
WRT-820A (66)
67 799.250 to
WRT-830A (66)
805.500
WRT-860A (66)
WRT-867A (66)
3
Tuner
WRR-800A (66)
WRR-801A (66)
WRR-810A (66)
WRR-820A (66)
WRR-840A (66)
WRR-850A (66)
WRR-860A (66)
WRR-800A(AU)