Vega R-662A PRO PLUS User manual

Owner's Manual
R-662A PRO PLUS
UHF Wireless-Microphone Receiver
099-0052B

A Word to Vega Users
In selecting Vega wireless microphones, you are in the company of audio
professionals worldwide. Leadership for over 30 years has made “Vega”
synonymous with wireless microphones. Vega equipment provides superb sound
quality, outstanding performance, and durability needed for years of successful
operation.
Unpacking
Verify the number of boxes shown as “shipped” has been received in good
condition. Unpack and save cartons for storage or reshipping. If, for any reason,
you do not find the equipment to be completely satisfactory, please immediately
contact your Vega dealer or the Vega factory.
Should service ever be required, remember your authorized Vega service dealer
knows your equipment best. They have the training and test equipment necessary
to restore your equipment to its peak performance.
Please feel free to contact either your authorized Vega dealer or the Vega factory
for information or assistance at any time.
Application
The R-662A receiver may be used with either Vega bodypack UHF transmitters
with lavalier (lapel) microphones or with handheld UHF transmitters. There is no
significant difference in overall performance for either type of transmitter.
Table Of Contents
A Word to Vega Users ...................................2
Unpacking ............................................2
Application ............................................2
Compatibility...........................................3
Operating Frequencies ...................................3
Controls and Indicators ...................................4
Operating Instructions ....................................8
Antennas ............................................10
In Case of Difficulty.....................................11
Warranty (Limited)......................................13
Service, Repair, and Comments............................14
R-662A Receiver Specifications
15
System Specifications
16

Vega UHF wireless microphones operate in the radio frequency band from 494 to
608 MHz, and from 614 to 806 MHz. These systems must be licensed by the
FCC before operation. There are some restrictions on the issuance of such
licenses; if you are not aware of the rules for licensing, contact your Vega sales
representative or the Vega factory.
Compatibility
The Vega Model R-662A PRO PLUS DYNEX®III UHF diversity receiver is
designed to work with Vega T-677 Series PRO PLUS DYNEX®III UHF
bodypack wireless microphone transmitters or T-680 Series handheld transmitters.
If the transmitter was not purchased with the receiver, it is not necessarily
compatible. Call the Vega factory or your Vega sales representative if you are not
certain the transmitter and receiver are compatible. Generally speaking, Vega
receivers will not function properly with transmitters manufactured by other
companies.
Operating Frequencies
The R-662A receiver is designed to work in the 494-to-608-MHz and 614-to-806-
MHz UHF ranges and must be precisely matched to the frequency(ies) of the
associated transmitter(s).
The R-662A receiver is available with up to four switch-selectable operating
frequencies installed. The operating frequencies are marked on the data label on
the bottom of the receiver.
If more than one frequency is installed in the receiver, the receiver operating
frequency can be changed in the field by means of a rear-panel-mounted rotary
switch. This allows the receiver to be tuned easily to any one of up to four T-677
Series bodypack transmitters or T-680 Series handheld transmitters. Consult your
Vega representative for assistance in selecting compatible frequencies to install in
the receiver.
The T-677 Series bodypack transmitter and T-680 Series handheld transmitter are
available tuned to a single frequency. If the transmitter and receiver frequencies
are not precisely the same, the frequency of one of the units must be changed. It's
usually easier to change the frequency of the transmitter; however, it is advisable
to return both units to the factory or authorized service location when changing
frequencies, to ensure the best results.
Because of the very high performance of these units and the specialized test
equipment required to adjust them properly, it is not recommended that users
attempt to change frequency themselves.
If two or more systems are to be used in the same location, proper frequency
selection and spacing are required to avoid possible interference. Vega offers a
free frequency-coordination service for purchasers of our equipment. Frequencies
are selected by computer to avoid any possible interference from other wireless
systems and broadcast stations.
Individuals wishing to take advantage of this free service should contact the Vega
factory or their local Vega sales representative.
UHF Diversity Wireless-Microphone Receiver
3

Controls and Indicators
Front Panel:
Audio-Level Meter: The Audio-level LED bargraph reads relative audio output
level. The reading shows the amount of modulation being received and is not
affected by adjusting the audio-output-level controls on the receiver. Ordinarily,
the scale's zero point indicates there is about 14 dB of headroom left in the system.
RF-Signal-Level Bargraph: A ten-position LED bargraph shows the relative
strength of the RF signal being received.
RF Meter Switch: A three-position rotary switch is provided to select whether the
RF-level bargraph indicates the RF level received by the channel A antenna, the
channel B antenna, or the channel that is presently being selected by the diversity
circuits. Ordinarily, the switch is left in the center, or DIV, position. However, during
setup or when trying to determine the effectiveness of each antenna, sometimes it is
helpful to force the RF-level bargraph to indicate the RF signal level at one or the
other antenna. This switch only changes the source being monitored by the RF-
level bargraph—it does not determine which audio channel is being selected by
the diversity circuits.
Diversity Selection Switch and Nondiversity Indicator: A three-position rotary
switch allows the operator to override the diversity selection circuits. In the
“NORM” position, the receiver's internal diversity circuits determine which
receiver will provide audio to the output connector. This is the way the R-662A
PRO PLUS receiver should normally be operated.
If the operator wishes to force the receiver to select either channel A or B, he/she
may do so by rotating the “DIVERSITY SELECT” switch to the appropriate
position. This feature allows the operator to verify that both receiver channels are
fully operational during sound check, and to “lock out” a channel that may be
defective for whatever reason.
An LED warning indicator near the diversity selection switch illuminates when
the operator has set the switch to a nondiversity position.
Power Switch and LED Power Indicator: Toggle on/off switch for ac, battery, or
external dc power. An LED indicates that ac or dc power is “on”.
Audio-Level Control: Screwdriver adjustment (30 dB range) for fine adjustment
of receiver audio output level. In addition, a rear-panel-mounted “MIC/LINE”
switch provides a 30-dB step attenuation to the output audio level.
Monitor Jack and Control: Level control for the monitor amplifier in the receiver;
independent of the main program audio output of the unit. The jack accepts a 1/4-
inch (6.35-mm) stereo or mono phone plug. This jack may be used as an auxiliary
line-level program output; however, the S/N will be slightly lower than for the
main program output.
Selected Diversity Channel Indicators (“DIV”): These LEDs indicate which
receiver channel is currently selected by the diversity circuits or by the diversity
selection switch.
Squelch Indicator (“SQ”): These green LEDs light up when the squelch circuit for the
corresponding channel is opened; that is, an above-threshold signal is being received by
that channel.
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UHF Diversity Wireless-Microphone Receiver
5
Audio-level adjustment
Adjusts the audio level available at
theXLRconnectoronthe rearpanel
About 28 dB of adjustment. Use the
mic/line switch on the rear panel for
additional 30 dB of adjustment
RF-meter select switch
“A”: reads A channel
“B”: reads B channel
“DIV”: Reads channel selected by
diversity circuits in receiver or by
DIVERSITY SELECT switch
Nondiversity warning LED
Indicatesthat the “DIVERSITYSELECT”switchis
not in the “DIV” position
RF meter
Indicates input RF field strength on
receiver channel as determined by the
“RF METER SELECT” switch
Monitor jack and level volume control
Monitor jack accepts either stereo or mono
headphones and allows the operator to
monitor the audio at the receiver.
Output impedance is about 22 ohms
Audio-level meter
Indicates the relative demodulated audio level.
This meter is
not affected by the setting of the
audio-level adjustment, or by the mic/line switch
on the rear panel.Set the mic gain control on the
transmitter so that this meter nominally reads
0 VU on voice peaks
Squelch and diversity indicator LEDs
“SQ-A,B”:indicates that good RF is present
at antenna A and/or B respectively.
“DIV- A,B”: Indicates that channel A or B
has been selected, respectively
Diversity select switch
“A”: forces the R-662A to select channel A
“B”: forces the R-662A to select channel B
“DIV NORM”: lets the diversity circuits in the R-662A
select the appropriate channel.
Thisswitchis inthe “DIV”positionfornormaloperation

Rear Panel:
Power-Module Compartment: Accepts either an ac power module for operation
on 115 Vac/230 Vac power line, or a battery module for operation on four “D”
cell batteries.
Ac Power Module
Ac Power Connector: The ac power module has an internationally approved 3-pin
bladed power connector for 105 to 130 Vac or 210 to 260 Vac.
Fuse holder: Accepts standard 1/4 ×1 1/4 inch fuse (1/2 A for 120 Vac, 1/4 A
for 240 Vac) or, with adapter, metric fuses of same values.
Voltage Selector Switch: A switch inside the ac power module allows the
selection of either 115 Vac (nominal) or 230 Vac (nominal) operation. The
metal top cover of this module must be removed to access this switch. Caution,
detach ac power cord before removing the module cover.
Alkaline-Battery Power Module: The battery power module accepts four “D” cell
batteries for portable operation. The receiver will operate approximately 4 to 6
hours on one set of alkaline batteries.
Auxiliary and Remote Monitor Connector: A female DB-9 connector is provided
with the following connections :
Pin # Function
1 Dc common
2 RF channel A
3 Dc common
4 Audio
5 Dc common
6 RF channel B
7 Diversity B
8 Diversity A
9 Deviation
Rear Panel (continued)
Antenna Connectors: Recessed BNC female RF connectors for receiver RF input.
6 Model R-662A PRO PLUS Dynex III
CHANNEL
SELECTED
DIV A
(PIN 8)
(Vdc)
DIV A
(PIN 7)
(Vdc)
A 8.0 1.1
B 1.1 8.0

Audio Connector: Standard 3-pin male XLR connector for the main (program)
audio output of the receiver.
Mic/Line (Audio Output Attenuator) Switch: Provides 30 dB attenuation in the
“MIC” position.
Front-Panel-LEDs Switch: This rear-panel toggle switch turns off all front-panel
LEDs (except the power indicator) to conserve power when operating with the
battery-power module or external dc.
Frequency-Selector Switch: This four-position switch selects one of the four
operating frequencies that have been installed. If only one frequency is installed,
this switch should be set to “1.”
UHF Diversity Wireless-Microphone Receiver
7
External dc input
External dc input accepts 12-
20 Vdc, 300 mA. Center pin is
(+), outer conductor is (-)
Frequency-select switch
The R-662A receiver can accept up to
four crystals in the first local oscillator to
make a four-frequency unit. This switch
selects the correct operating frequency
Display
Interface to remote
meter and indicator
display. Contact Vega
factory for assistance
Mic/line switch
30-dB nominal attenuator for
mic inputs. Output impedance
in “MIC” position is 150 ohms
Antenna B
Antenna input connector for
channel B. 50 ohms nominal
Antenna A
Antenna input connector for
channelA.50 ohmsnominal
Squelch adjust
Adjusts the squelch operation level for both channels
simultaneously
Front-panel LEDs switch
Controls whether LEDs on the front panel of the
R-662A are illuminated or not
(to conserve battery power)
Audio output
MaleXLR connector

Operating Instructions
(1) If the ac POWER MODULE is installed, disconnect the ac power cord from
the module, remove the power module from the receiver, and select the desired ac
operating voltage (i.e., 115 or 230 Vac, nominal) by means of the voltage-selector
switch on the circuit board in the ac POWER MODULE.
Check the value for the installed fuse and change if necessary. Install the ac
POWER MODULE in the receiver and secure by means of the captive fastener
screw provided. Connect the ac power cord to the ac POWER MODULE. Plug
the power cord into a wall ac power outlet.
(2) If the BATTERY POWER MODULE is installed, remove the power module
from the receiver and verify that four fresh “D” cells have been installed into the
BATTERY POWER MODULE. Install the module into the receiver and secure
with the captive fastener screw provided.
WARNING: If the BATTERY POWER MODULE is installed, do not apply
external dc, damage to the module may result. No damage will be done to the ac
module if dc is applied.
Note: If external dc is used, it must be in the 13.0 to 20.0 Vdc range. Below 13.0
Vdc, performance may suffer due to loss of regulation; above 20.0 Vdc, the
internal regulator may overheat and shut down.
(3) Connect the antennas. If whip antennas will be used, they should be connected
directly to the recessed BNC antenna connectors on the rear panel.
(4) If Vega cable-connected antennas are used, connect each of the two cables to
the antenna connectors. Mount/attach the two antennas to the structure to be used
to support them. Do not mount antennas so that the “active” part of the antenna is
located near metal surfaces. (See section on antennas below.) A vertical
orientation is recommended; however, there will be no great difference in
performance if horizontal mounting is necessary. Antenna-to-antenna distance is
not critical; however, at least 6 inches (0.15 m) is recommended. For further
information on proper antenna placement, see the following paragraphs.
(5) Plug the audio cable into the rear-panel audio output connector on the receiver
and connect the opposite end to your audio equipment (mixer console, PA
amplifier, etc.).
The receiver output is a standard, transformer-isolated, balanced configuration.
(6) Select the desired audio-output range for the receiver on the rear-panel
“MIC/LINE” switch. The “LINE” position corresponds to the usual line level, and
“MIC” corresponds to typical microphone levels. Be sure that the receiver output
level is not higher than that which can be accepted by the audio equipment
connected to the R-662A output jack. If you have not already done so, verify that
the transmitter frequency matches that of the receiver.
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(7) Turn “on” the receiver by actuating the front-panel “POWER” switch. The
power-on LED should illuminate.
(8) Install a battery in the transmitter, turn it “on,” and position it in the
approximate center of the area to be covered by the wireless system.
(9) Set the “FRONT PANEL LEDs” switch (located on rear panel) to the “ON”
position. Both squelch (“SQ”) indicators on the receiver should be illuminated.
(10) Set the front-panel “RF METER SELECT” switch to “A” and observe the
“RF SIGNAL LEVEL” bargraph. If the bargraph does not read above “8,” one or
more problems are indicated (e.g., defective transmitter, receiver, or antenna,
excessive distance between transmitter and receiver, or severe RF propagation
problems). Refer to section “In Case of Difficulty.”
(11) Turn the “RF METER SELECT” switch to “B” and again observe the
bargraph. The reading should be approximately the same as for the other channel.
Next, set the “RF METER SELECT” switch to “DIV” and the “DIVERSITY
SELECT” switch to “NORM” (diversity). The RF meter should read
approximately the same as for the higher of the two channels, and the diversity
indicators should show selection of that channel.
(12) Turn on the transmitter to be used with the system. If using a bodypack
transmitter, connect the microphone to the transmitter.
(13) The audio levels should now be set for the system. With the microphone
positioned normally, speak loudly into it. Adjust the audio gain control on the
transmitter so that the “AUDIO LEVEL” meter on the receiver reads
approximately “0.”
(15) The receiver audio-output level should now be adjusted by means of the
recessed “AUDIO OUTPUT” control on the front panel. Verify that the receiver
output is not overloading the input of the mixer or amplifier it is feeding.
(16) “Walk” the coverage area to ensure that there are no areas of poor coverage.
Signal “dropouts” (little or no signal in small areas) show up as a large drop in
the level shown on the “RF SIGNAL LEVEL” indicator or a flickering of the
“SQ” indicators on the receiver. The audio may be conveniently monitored with
headphones plugged into the front-panel “MONITOR” jack on the receiver. If
there is an area where a “dropout” occurs (very unlikely with a diversity
receiver), the receiving antennas can usually be repositioned to eliminate the
problem. Frequently, a change of just a few inches in location will completely
solve the problem.
UHF Diversity Wireless-Microphone Receiver
9

Antennas
The receiver antenna may be the most important single component in a wireless-
microphone system. However, this is the item most often overlooked in setting up
a system, and is frequently the cause of quite unnecessary problems. Proper
placement of the receiving antenna(s) is vitally important in any wireless system.
“Whip” antennas connected directly to the wireless receiver are adequate for
many installations. When the distance between the receiver is 200 to 300 feet or
less, and there is a clear, unobstructed line-of-sight path between the receiver and
the transmitter, good results can usually be obtained.
It is often desirable to have the receiver next to the console or other location
which does not have a clear line-of-sight path to the transmitter. In this case,
another type of antenna will be needed. Vega offers a magnetic-mount 1/4-wave
whip antenna, a “ground-plane” 1/4-wave whip antenna, and a high-performance
UHF log periodic directional antenna, each with a 12-foot (3.7-m) cable which
may be used for this purpose. Two such antennas are required for the R-662A
receiver.
Other types of antennas may be needed for unusual applications, such as
operating at extreme ranges of 500 feet (150 m) or more. Vega's high-gain log-
periodic antenna covering the complete range of operating frequencies for the R-
662A receiver is very useful for such situations.
UHF TV antennas (with an appropriate matching transformer) are often used for
this purpose. A wide-bandwidth yagi or log periodic antenna also works well in
this application. UHF communication antennas are also sometimes used for
specialized requirements. Such antennas are usually narrow band and must be
modified to function properly in the 494 to 608 MHz and 614 to 806 MHz bands.
Consult your Vega representative for assistance in selecting antennas for unusual
applications.
No matter what type of antenna is used, use care in positioning and mounting. In
all cases, a clear and unobstructed line-of-sight path between the receiving
antenna and the transmitter is required.
The receiving antenna may be concealed behind fabric, thin plastic, acoustic tile,
and thin plywood without significantly affecting performance. However, close
proximity to metallic objects such as furniture, lighting fixtures, scaffolding,
electrical cables, metal structural members, aluminum window frames, and
equipment cabinets must be avoided. Whip and dipole antennas require at least a
5-inch (0.1-m) minimum spacing from metal surfaces. Other types of antennas
may require greater spacing. The manufacturer's recommendations should be
followed when using yagis and other types of specialized antennas.
Frequently, the antenna must be located some distance from the desired location
of the receiver. In this case, long coaxial cables unavoidably reduce the available
signal strength and detract from system performance. It is not recommended to
use long cables to connect antennas to UHF receivers. Consult the Vega factory
when cable runs over 25 to 30 feet (8 to 10m) are necessary.
10 Model R-662A PRO PLUS Dynex III

In Case of Difficulty
Most Vega equipment provides years of trouble-free operation. However, as with
all electronic devices, problems might occur. Low batteries, frail wires, improper
antenna placement, etc. is usually the problem—not equipment failure.
The following paragraphs describe the most common problems. Please review this
information and take any necessary corrective action. If you still experience
difficulties, contact the Vega factory or your sales representative. Often, the
problem can be resolved by phone, avoiding downtime for unnecessary returns.
Should repairs be necessary within the first year of operation (under warranty),
Vega will promptly correct the problem and return the unit. Service for older
units may also be obtained from Vega; contact the factory or your sales
representative for information.
Return of both transmitter and receiver is recommended, allowing us to perform a
complete checkout and test of the entire system. This can be especially helpful for
elusive or intermittent problems
Battery
The most common problems with wireless microphones are those related to the
transmitter battery. Vega recommends only new, fresh Duracell MN1604 or
Eveready alkaline batteries be used in the transmitter, and Duracell or Eveready
alkaline “D” cell batteries in the receiver, if the BATTERY POWER MODULE
is installed. Despite advertising claims, no other batteries tested by Vega provide
equal life and equivalent reliability. Others will work, but battery life may be
short and current inadequate. Lithium 9-volt batteries may also be used when
extended operating time is necessary.
The only acceptable rechargeable batteries known to Vega are Varta and
Plainview batteries, which are true 9-volt designs. Even here, the usable life will
be much less than for a Duracell (usually 1 to 1.5 hours).
Exhausted batteries will cause many problems, including distortion, audible
squeals and howls, poor range, and off-frequency operation. Most Vega
transmitters provide a means of checking battery condition prior to use. It is
strongly recommended that the battery be checked prior to each use, and that it be
replaced if there is any question about its condition.
It is also good practice to replace batteries with new ones when any system
problems occur, since a low battery may affect system operation in subtle ways.
Receiver Noise
Vega wireless microphone receivers are designed to be extremely sensitive.
Although high-performance squelch circuits are provided, it is not unusual for the
receiver squelch to open and let through audio noise when the transmitter is off.
This is usually due to harmonic outputs of commercial radio and TV stations,
spurious outputs from two-way radio transmitters, adjacent-channel leakage from
TV transmitters, and, sometimes, RF noise from digital equipment such as audio
and video effects generators, computers, and other industrial equipment near the
antennas.
UHF Diversity Wireless-Microphone Receiver
11

When the wireless transmitter is “on,” this noise is suppressed and rarely causes
any difficulties. However, if the audio channel is left “open” with the transmitter
“off,” loud blasts of noise may occur. Therefore, it is advisable to “fade” the
receiver audio when the transmitter is not in use. Changing the placement of the
antennas and, in some extreme cases, changing the operating frequency may be
necessary to minimize these problems.
The receiver rear panel “SQUELCH” control may be adjusted to eliminate false
squelch openings when the transmitter is off. This will be effective only in mild
cases of interference. Adjustment of this control will directly affect the system's
operating range, so considerable caution should be used.
Antennas/Cables
If there is a coverage problem, try moving the receiving antenna, particularly if
there are nearby metallic materials. Antenna placement and mounting is vitally
important. Shielding the antenna with metallic objects reduces the signal level
available, and may result in creating locations within the coverage area where the
receiving antenna is almost entirely ineffective (pattern “nulls”).
Acoustic Feedback
Bodypack transmitters usually use lavalier electret microphones. Almost all such
microphones are omnidirectional (equal sensitivity in all directions) and usually
pick up much more ambient noise than handheld microphones.
In many sound systems, on-stage monitors are used. Often, the directional
characteristics of handheld microphones provide the only protection from acoustic
feedback. Omnidirectional lavalier microphones do not provide the same degree
of protection, and acoustic feedback may occur when the wireless is used.
However, this is an acoustic problem and is not directly related to the use of
wireless transmission. There are several solutions to this problem: substituting a
directional lavalier microphone (a few models are available), reducing the monitor
level, relocating the monitor speakers, or careful adjustment of equalizers.
Interference
Problems with RF noise sources (fluorescent lights, digital effects generators, and
industrial equipment, etc.) are quite rare. However, defective fluorescent lighting
fixtures can generate astonishing amounts of RF energy. Usually, repairing the
fixture will cure the problem. Normally functioning fixtures almost never cause
trouble. Some digital audio and video signal processing equipment and effects
generators also can generate substantial amounts of broadband noise. When this
situation exists, nothing can be done to the wireless equipment to correct the
problem that will not seriously degrade performance. The receive antennas must
be positioned away from these sources of RF noise to minimize the effect of this
interference. Fortunately, this type of problem is surprisingly rare.
12 Model R-662A PRO PLUS Dynex III

A more serious problem is selection of wireless-microphone operating frequencies
which are inherently subject to interference due to intermodulation. Fortunately, a
proper initial selection or changing frequencies will usually correct any such
problem. Vega offers a free computerized frequency-selection service to
purchasers of our equipment. If the frequency of other wireless equipment to be
used in a given area is known, interference-free frequencies can be chosen.
However, if equipment is added later without frequency coordination, it is likely
that an interference problem will occur. Should this happen, contact the Vega
factory or your sales representative for assistance. Many wireless systems may be
used in an area. However, careful frequency coordination is essential.
Microphone Problems
Almost all electret microphones are sensitive to RF energy and require special
precautions to operate properly with wireless transmitters. If the sound quality of
a microphone changes drastically when its position with respect to the transmitter
changes, it is likely that RF susceptibility is the cause. Contact the Vega factory
or your sales representative if assistance is required. Lavalier mics purchased
from Vega are specially assembled with added components to avoid this problem.
The wires in lavalier electret microphone cables are usually very small. After a
period of heavy use, the conductors may fray, resulting in intermittent failure or
severe noise. The wire also may break. It is advisable to have a spare microphone
available in good working condition (it does not need to be a high quality unit). A
spare microphone enables easy localizing of problems due to bad microphone
cables by merely substituting the spare for the suspected unit.
Warranty (Limited)
All Vega wireless products are guaranteed against malfunction due to defects in
materials and workmanship for one year, beginning at the date of original
purchase. If such a malfunction occurs, the product will be repaired or replaced
(at our option) without charge during the one-year period, if delivered to the Vega
factory. Warranty does not extend to damage due to improper repairs, finish or
appearance items, malfunction due to abuse or operation under other than the
specified conditions, nor to incidental or consequential damages. Some states do
not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation may not apply to you. This warranty gives the customer
specific legal rights, and there may be other rights which vary from state to state.
Vega authorized service centers enable Vega to give customers immediate service
on repairs. These service centers are fully qualified and equipped to handle the
servicing of Vega equipment, and turnaround time is excellent. To obtain the
address of your nearest authorized warranty service center, contact your dealer or
the factory.
If you should require service, pack the equipment carefully and return it to the
factory service center or the nearest authorized service center.
Important: Be sure the exact return address and a description of the symptoms are
enclosed inside the package with your equipment.
It is also advisable to return the transmitter and receiver for full system
performance test when practical.
UHF Diversity Wireless-Microphone Receiver
13

14 Model R-662A PRO PLUS Dynex III
Service, Repair, and Comments
Important!
Be sure the exact return address and a description of the symptoms are enclosed
inside the package with your equipment.
It is also advisable to return the transmitter and receiver together for full system
performance test when practical.
Factory Service Center
Vega
9900 E. Baldwin Place
El Monte, CA 91731-2294
[phone]
Authorized Service and Repair Centers
Systems Wireless, Ltd.A-1 Audio
465 Herndon Parkway3780 Scripps Way
Herndon, VA 22070Las Vegas, Nevada 89103
[phone](702) 364-0203
Canadian Service
For service in Canada, contact: Mark IV Audio, Canada Inc., PO Box 520, 345
Herbert St., Ganaoque, Ontario, Canada; [phone].
Vega Fax Library
Information including more detailed procedures, schematics, and other Vega
products is available 24 hours a day from Vega’s fax library. Simply call the
number below then follow the voice instructions.
[phone] or 800-274-2017
Claims
No liability will be accepted for damages directly or indirectly arising from the
use of our materials or from any other causes. Our liability shall be expressly
limited to replacement or repair of defective materials.
Suggestions or Comments
We'd appreciate your input. If you send us suggestions or comments concerning
this manual, we'll send you a small token of our appreciation. Please fax (818-
444-1342) or mail them to:
Vega Communications Manager
9900 East Baldwin Place
El Monte, CA 91731-2204

UHF Diversity Wireless-Microphone Receiver
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UHF Diversity Wireless-Microphone Receiver
17
www.vegawireless.com
9900 East Baldwin Place •El Monte, California 91731-2294
Telephone: [phone] •Toll-Free: 800-877-1771
Fax: [phone] •CompuServe: 73513,1417
FaxBack: [phone] •Toll-Free FaxBack: 800-274-2017