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
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