CONTACT 502A Wireless Microphone System OPERATING MANUAL AND USER GUIDE www.wharfedalepro.
OPERATING MANUAL IMPORTANT WARNINGS & SAFETY INSTRUCTIONS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Please read and retain these safety instructions. Heed all warnings in the operating instructions and on the appliance. Do not use this apparatus near water or moisture. Clean only with a dry cloth. Do not install near sources of heat such as radiators, heat registers, stoves or other apparatus that produce heat. Refer all servicing to authorised personnel.
Contact 502A 13. 14. 15. units, etc.) BEFORE powering up amplifiers. Transient voltages from powering up source equipment can damage speakers if amplifiers are already turned on. Make sure that amplifier volumes are set to their minimum settings and power up any system amplifiers LAST. It is recommended that all system components be allowed to stabilize for several seconds before any source signals are introduced or level setting adjustments are made.
OPERATING MANUAL TABLE OF CONTENTS Important Warnings and Safety Instructions......................... 1 Introduction............................................................................. 4 Overview................................................................................. 4 Features and contents............................................................ 5 Setting up the receiver........................................................... 8 Receiver operation...................................
Contact 502A INTRODUCTION Wharfedale Contact 502A Wireless microphones are the result of many years of experience in the use, design and manufacturing of professional audio products.We take great pride in engineering and building ever y Whar fedale Pro microphone and wish to thank you for entrusting us with your sound. Please take a few minutes to read this manual completely in order to ensure that you get the most out of your Contact 502A Wireless microphone.
OPERATING MANUAL FEATURES • Antenna diversity system with 2 antennas • High sensitivity handheld dynamic microphones with integrated transmitters • Infrared link for automatic synchronisation of transmitters and receiver • Automatic scanning for interference free channels • Intelligent battery status display for each channel • Up to 8 hours of continuous use from 2x AA batteries • Automatic microphone off in low battery conditions • Worldwide multi-voltage switching power supply CONTEN
Contact 502A FRONT PANEL OF THE DUAL CHANNEL RECEIVER: Fig.1 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) POWER: Toggles the power on and off. VOLUME CONTROL (Channels A & B): Sets the level for each channel. G RO U P (C h a n n e l s A & B): C r e ate g r o up s of microphones, which is useful when many microphones are used simultaneously. LED (Channels A & B): Displays the GROUP and CHANNEL assignment for each channel. RF LED (Channels A & B): Indicates that RF signal is present and locked.
OPERATING MANUAL REAR PANEL OF THE DUAL CHANNEL RECEIVER: Fig.2 12) 13) 14) 15) 16) 17) 18) 19) 20) Antenna Connectors Output B: ¼” unbalanced jack output connector for CH B. O U T PU T M O D E S w i tc h: U s e “ M I X ED ” to o u t p u t both microphones from output A. Use “SEPAR ATE” to output each microphone individually. Output A: ¼” unbalanced jack output connector for CH A or the mixed signal. Output Level Switch: Use “MIC” when connected to microphone inputs (-14dBv/ 100Ω).
Contact 502A SETTING UP THE RECEIVER Output connection: Fig.3 Fig.3a 1. 2. 3. 4. Install the two antennas on the rear panel as shown in Fig.3a. Connect the power supply as shown in Fig.3. (Caution: Ensure the power supply has the correct rating for your local AC supply) Connect audio leads from the output of each channel to an input on a mixer or powered speaker. When the output cable is connected to an auxiliary or line input the “OUTPUT LEVEL” switch (16) should be set to the “LINE” position.
OPERATING MANUAL RECEIVER OPERATION: 1 2. Before tur ning on the rec eiver, make c er t ain the transmitter is off. Also ensure that the volume for CH A and CH B are set to minimum. Ensure that your output devices are muted or set to the lowest possible level before turning on the Contact 502A, then hold down the power button of the receiver until the LED displays illuminate. Turn on the wireless microphone. The RF indicator light of the corresponding channel will illuminate.
Contact 502A 5. 6. LOCK and UNLOCK: If you wish to lock the controls on the front panel to avoid accidental adjustments, set the “LOCK/UNLOCK” switch (17) to the “LOCK” position. All the buttons will be disabled except the “POWER” button. To enable the front panel controls slide the switch to the “UNLOCK” position. SQUELCH: There are two adjustable SQUELCH controls on the rear panel of the receiver.
OPERATING MANUAL NOTICE: • The position of the antenna will affect the reception, so minimise the distance between the microphone and receiver where possible. • Several sets of wireless microphones can be used simultaneously with this system. Please consult your dealer or distributor for correct frequencies. NAMES AND FUNCTIONS: 1. 2. 3. 4. 5. 6. Pop shield: Protects the microphone capsule from damage and reduces the “pop” noise (from “P’s” and “B's”) as well as wind noise.
Contact 502A BATTERY INSTALLATION Fig.7 1 2. 3. 4. Unscrew the upper par t (2) of the microphone in a counter-clockwise direction Install the two AA batteries according to the polarity as shown in the battery compartment, and screw the upper part tight. Operating Functions of the LCD Panel 1) When the power switch is in position 1, the LCD displays all the content, then displays the power value for a second. 2) Bat ter y Status: When the bat ter y level is 10%, batteries should be replaced.
OPERATING MANUAL NOTE: When the microphone is not in use, remember to turn off the power supply. If you will not use the microphone for a long time, remove the batteries to avoid damage from battery leakage. If you are using rechargeable batteries, remove the batteries and charge them in their charger. SPECIFICATIONS I. Receiver Cabinet Size Channels Receiving Manner Oscillation Mode Carrier Frequency Range Stability Bandwidth Sensitivity Frequency Interval Switched Frequencies S/N T.H.D.
Contact 502A II. Transmitter Oscillation Mode Carrier frequency Frequency Stability Bandwidth Frequency Adjustment Output Power Harmonic radiation Max. adjustment range Max. Input SPL Battery PLL (Phase Locked Loop) frequency Compounded UHF 529 ~ 865MHz ±0.005% (-10 ~ 50 ºC) 13MHz Automatic Channel setting > 10dBm (adjustable) < 55 dB(c) ± 48kHz 140dB AA battery x 2 III. Frequency Range Code Table.
Wharfedale Professional IAG House, 13/14 Glebe Road, Huntingdon, Cambridgeshire, PE29 7DL, UK www.wharfedalepro.com Wharfedale Professional reserves the right to alter or improve speci ications without notice. All rights reserved © 2010 Wharfedale Pro. Wharfedale Pro is a member of the IAG Group.
