AVSL 171.801 VH45B - Manual (Page 2)

Thank you for your purchase of the VH45B wireless microphone system. Please read
the following instructions carefully before using this product to ensure best results and
to avoid damage through misuse.
Note – no user serviceable parts inside, refer all servicing to a qualified technician.
Safety

Connect the D.C. adapter to the wireless receiver and ensure the correct mains
voltage and that the D.C. adapter and lead is intact before plugging into the
mains outlet
 Ensure that the handheld transmitter has a 9V battery (PP3) installed which is
in good condition with adequate charge (alkaline type is recommended)
 Avoid contact with moisture for any of the system components and keep all
parts clear of dust and foreign objects
 Keep all components away from heat sources (amplifiers, heaters, radiators
etc.) and out of direct sunlight
 Remove battery from the handheld unit and power adapter from receiver
when not being used for long periods of time.
 Position the receiver on a stable surface and take care when placing the
transmitter down so that it doesn’t roll and fall off the surface.
 Clean transmitter and receiver periodically with a dry or slightly damp cloth.
Do not use solvents or abrasives on the plastic and metal parts.
 Avoid impact or pressure on casing of all components
Features
 Stable quartz tuned VHF carrier frequency
 Multi-level high and mid frequency narrowband filtering to eliminate
interference.
 Individual Mute switch on handheld transmitter to allow muting prior to
switching on or off, avoiding clicks and pops
 LED indicators for Power, RF, Audio Peak, Low battery
 Audio companding circuitry for accurate dynamics without audible distortion
 Auto-muting circuitry to eliminate noise when transmitter is not detected
 Neat and compact design
Receiver
1. POWER LED – illuminated when power to receiver is on
2. RF LED – illuminated when receiver detects RF carrier signal
3. AUDIO PEAK LED – illuminates to indicate audio reaching peak level
4. VOLUME – rotate clockwise to increase output level
5. ANTENNA – fold-away VHF telescopic aerial
6. OUTPUT – 6.3mm jack unbalanced audio output
7. CASE – sturdy plastic receiver housing
8. DC INPUT – 2.1mm power connector for 9-15Vdc input
Transmitter
1. GRILLE – windshield with integral pop filter
2. LOW BATT LED – illuminates when battery charge is low
3. POWER LED – illuminates to show battery power is on
4. POWER & MUTE – switches to activate battery and mute output
5. GAIN – screw adjustment inside battery compartment to adjust mic gain
6. COVER – screw-on cover for battery compartment