171.840, 171.841, 171.842 User Manual
Introduction
Thank you for choosing the Chord QU4 wireless system. This professional wireless set provides 4 high quality
microphones with UHF radio system for freedom of movement without loss of audio quality. Please read this
manual before using this item in order to avoid damage and to get the best performance from your purchase.
Package Contents
UHF quad wireless receiver
19” rack ears
2 x antennae
Mains power adapter
6.3mm mono jack lead
8 x 1.5V AA battery
QU4-H version – 4 x handheld transmitters
QU4-N version – 4 x neckband micro 4 x beltpack transmitters
QU4-C version – 2 x handheld transm 2 x neckband micro 2 x beltpack transmitters
If you find any accessory is missing or the product has arrived with any problems, please contact your retailer.
This product contains no user-serviceable parts so make no attempt to try to fix or modify this item yourself
as this will invalidate the warranty. We recommend you keep the original package and proof of purchase for
any possible replacement or returned demand.
Warning
To prevent the risk of fire or electric shock, do not expose any of the components to rain or moisture.
If liquids are spilled on any component, stop using immediately, allow unit to dry out and have checked by
qualified personnel before further use.
Avoid impact or heavy vibration to any of the components, dropping the microphone can cause capsule
failure.
No user serviceable parts inside transmitter or receiver - refer servicing to qualified service personnel.
Safety
Ensure that the correct adapter is used with adequate current rating and that the mains voltage is as
stated on the adapter
Avoid ingress of water or particles into the transmitters or receiver
Use alkaline or NiMH batteries in the transmitters and remove if unused for long periods
Observe the correct polarity when replacing batteries
Placement
Keep all components out of direct sunlight and away from heat sources
Do not place heavy objects on top of the receiver or transmitters
If rack-mounting, use the rack-ears provided and do not place heavy equipment above the receiver
Take care to keep antennae from sticking out where they may get damaged
Keep the transmitters and receiver away from damp or dusty environments
Cleaning
Use a soft cloth with a neutral detergent to clean the body of the handheld transmitter and receiver.
Lightly damp sterile wipes may be used on the microphone grilles for hygiene purposes
To avoid damage, do not use solvents to clean the components