Instruction/ maintenance manual of the product DA2277 VocoPro
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Digital Key Control Mixer with Dual Rechar geable W ireless Micr ophone System DA-2277 DA-2277 FEA TURES: • Wireless Receiver Base Charges Wireless Microphones and Also Serves as a Microphone Dockin.
DA-2277 Cautions and W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Listening for a Lifetime .
1 Safety Instructions CAUTION RISK OF SHOCK CAUTION: T o reduce the risk of electric shock, do not remove cover (or back). No user- serviceable parts inside. Only refer servicing to qualified service personnel. W ARNING T o reduce the risk of fire or electric shock, do not expose this unit to rain or moisture.
2 CAUTION The apparatus is not disconnected from the AC power source so long as it is connected to the wall outlet, even if the apparatus itself is turned off. T o fully insure that the apparatus is indeed fully void if residual power , leave unit disconnected from the AC outlet for at least fifteen seconds.
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4 Listening For A Lifetime Selecting fine audio equipment such as the unit you’ve just purchased is only the start of your musical enjoyment. Now it’s time to consider how you can maximize the fun and excitement your equipment offers.
5 The DA-2277 Features Specifications Inputs Sensitivity: MICS 3,4 (Wired) STEREO AUDIO INPUT Outputs: AUDIO OUT 1 AUDIO OUT 2 AUDIO OUT 3 MIC OUTPUT MAXIMUM OUTPUT T one Controls: TREBLE (10KHz) BASS (100Hz) Signal to Noise Ratio: MIC STEREO T otal Harmonic Distortion: Frequency Response: Echo: Key: Dimensions: Net Weight: Power Consumption: 1.
6 Before Getting Started: Things to Consider It is very important to read the following instructions prior to starting any installation procedures. Doing so will ensure a correct installation and may save you some time as well.
Microphone Basics 7 W ireless Micr ophones - The Basics • Every wireless microphone system must operate on a specific frequency range. • The government dictates the frequency ranges available for use with consumer wireless devices.
Microphone Basics 8 A voiding Feedback Acoustic feedback can be a problem in any sound system. Audio systems that include wireless microphones are somewhat more prone to feedback than those using only wired microphones, simply because the freedom of movement with wireless makes it more likely that the user will walk in front of the speakers.
9 Front Panel Descriptions and Controls 1. POWER button – This button turns the DA-2277’s power ON/OFF . 2. DOWN, NORMAL AND UP buttons – These buttons adjusts how the DIGIT AL KEY CONTROLLER transposes the musical key of your source music.
10 DIGITAL KEY CONTROLLER Digital Key Control Mixer with/Dual Rechargeable Wir eless Mic System POWER Down Vocal Partner Vocal Cancel A/V Source Normal Up Music 0 0 0 0 5 10 10 0 -15 +15 0 -15 +15 0 1.
1 1 Rear Panel Descriptions and Controls 1. ANTENNA 1 jack – Connect a RECEIVER ANTENNA to this jack before attempting to use this device. Ensure the ANTENNA is fully extended for optimal signal reception.
12 Microphone Descriptions and Functions 1. POWER LED indicator – This LED lights up when the microphone is turned on and in use. 2. POWER switch – This switch turns the microphone ON/OFF . 3. CHARGE LED indicator – This LED lights up when the microphone is being charged.
Replacing/Recharging the Microphone Batteries 13 Replacing Microphone Batteries • Unscrew the BA TTERY COMP ARTMENT cap by twisting it counter-clockwise. • Insert 2 new RECHARGEABLE AA batteries into the BA TTERY COMP ARTMENT with the polarities matched as shown in the diagram located in the compartment.
Getting Connected 14 Connecting A/V Source Players to the DA-2277 For each A/V source player , you will need an A/V patch cable (red, white and yellow plugs). • Connect one set of red and white plugs to the AUDIO OUT jacks on your source player and the yellow plug to the VIDEO OUT jack on your source player .
Getting Connected Connecting Video to Display Devices • For each VIDEO OUT connection, connect a single RCA patch cable from the VIDEO IN jack on your display device to the VIDEO OUT (1 or 2) jack on the DA-2277.
16 Understanding and A voiding VHF Interference Recognizing Interference The ways of recognizing the type of interference present are observing the receiver LED indications and carefully listening to the audio. A set of headphones can be a useful tool in isolating and analyzing interference problems.
17 Understanding and A voiding VHF Interference A voiding Basic Problems Sometimes interference problems have very basic causes. T o avoid wasting time on an easily correctable problem, check the foll.
18 Understanding and A voiding VHF Interference Frequency Conflicts There are two primary ways that other wireless systems and TV channels cause interference. The first is a direct frequency conflict. If two wireless systems are on the same frequency , usually neither system will be usable unless the other is turned off.
19 T roubleshooting PROBLEMS SOLUTIONS CAUSE Battery is running low even when just charged. No sound output. Excessive noise in microphone output. No music output. No echo is being applied to the vocals The microphone is not recharging because it is not placed in the recharging terminal correctly .
20 Glossary of T erms Digital Echo - Digital echo is a synthetically processed sound effect that mimics natural echo. Echo in general is the "bouncing" of waves back and forth between 2 surfaces. This ef fect gives a spacious or ambient feeling that works great with vocals.
21 Glossary of T erms A/V - A/V is an abbreviation for Audio/Visual. Y -Adapter - Any type of connection that splits a signal into two parts. An example would be a connector with one male RCA jack on one end, and two female RCA jacks on the other end.
22 Recommended V ocoPro Gear Professional CD/CD+ Graphic Player • Pro CD Player W/ CD + Graphics Decoder • Pitch Control T o 12% (+) Or (-) • Scramble protection during pitch changes • Single T rack Mode • Frame Search W/ Jog Dial • 4-Speed Fast Forward/Rewind Shuttle.
23 Recommended V ocoPro Gear 2 Space 600W Professional Power Amplifier • 300W + 300W RMS • 600W + 600W Max • THD: 0.05% • Frequency Response: 20HZ-20KHZ Signal to Noise • 1/4" or XLR Inputs • Input Ratio: Less than 100DB • Input Sensitivity: 1.
24 Recommended V ocoPro Gear Professional 8" 3 W ay V ocal Speakers • 3 W ay 8" Karaoke V ocal Speakers (Sold in Pair) • Design for Karaoke Studio or Singers Monitor • Power Rating: 18.
An important point after buying a device VocoPro DA2277 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought VocoPro DA2277 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data VocoPro DA2277 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, VocoPro DA2277 you will learn all the available features of the product, as well as information on its operation. The information that you get VocoPro DA2277 will certainly help you make a decision on the purchase.
If you already are a holder of VocoPro DA2277, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime VocoPro DA2277.
However, one of the most important roles played by the user manual is to help in solving problems with VocoPro DA2277. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device VocoPro DA2277 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
