PROF. KARAOKE MIXER WITH DIGITAL ECHO, KEY, AND FEEDBACK CONTROLS AKJ7404 AC C7 4 03 -1 OWNER’S MANUAL AK J 7404 PROFESSI O NAL K A R AOKE MIXER WITH DIGITAL ECHO,KEY,AND FEEDB A CK CONTROLS AUTO R Thank you for purchasing the Audio2000'S professional karaoke mixer with digital echo, key, and feedback controls! To achieve maximum performance from your new unit, please read this manual thoroughly, and retain it for future reference. For more information, please visit our website (www.audio2000s.
TABLE CONTENTS : WARNING AND SAFETY INSTRUCTION....................................... 1-2 FEATURES ................................................................................ 3 HANDLING PRECAUTIONS ........................................................ 3 BEFORE CONNECTIONS ............................................................ 3 DESCRIPTIONS AND FUNCTIONS ● FRONT PANEL ...................................................................... 4-5 ● REAR PANEL ......................................
CAUTION:TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The lightning flash with arrowhead symbol,within an equilateral triangle,is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
SAFETY INSTRUCTIONS READ BEFORE OPERATING EQUIPMENT This product was designed and manufactured to meet strict quality and safety standards. There are, however, some installation and operation precautions which you should be particularly aware of. 11) Power Sources--The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.
FEATURES FEATURES 1. High Quality Dual Digital Echo Effects with Individual Treble/Mid/Bass Controls. 2. Five Microphone Inputs (Three at the Front Panel, Two at the Rear Panel). 3. Three Individual Microphone Volume Controls (1, 2/A, and 3/B). 4. Master Microphone Volume/Treble/Mid/Bass Controls. 5. Master Music Volume/Treble/Mid/Bass Controls. 6. Feedback Frequency and Gain Controls. 7. Four Audio Inputs with Automatic or Manual Audio Channel Selections. 8. 13-Step Digital Key Changer. 9.
DESCRIPTIONS AND FUNCTIONS MUSIC VOLUME CONTROL KEY CONTROL BUTTONS INPUT SELECTION BUTTONS 11 FB CONTROL FREQ ADJUSTMENT VFD DISPL AY PANEL ECHO VOLUME CONTROL 16 AUTO/MANUAL INDICATOR 12 FB CONTROL GAIN ADJUSTMENT 17 REMOTE 8 MASTER MIC VOLUME CONTROL CONTROL SENSOR AKJ7404 PROFESSIONAL KARAOKE MIXER WITH DIGITAL ECHO,KEY,AND FEEDBACK CONTROLS AUTO MUSIC TONE CONTROLS POWER INDIVIDUAL MICROPHONE VOLUME CONTROLS MICROPHONE TONE CONTROLS POWER Press this button to turn the power on.
DESCRIPTIONS AND FUNCTIONS 7 MUSIC VOLUME CONTROL This control knob allows the user to adjust the volume of the music output. 14 KEY CONTROL BUTTONS b : Lowers the music key one step (each step is 1/4 note) each time this button is pressed. : Resets the music key to its natural key. # : Raises the music key one step (each step is 1/4 note) each time this button is pressed. Note:The key will stay until it is changed further.
DESCRIPTIONS AND FUNCTIONS VIDEO INPUT JACKS (DVD,VCD,AUX,BGM) VIDEO OUTPUT JACKS(1,2,3,4) MIC INPUT JACKS(A,B) VOLTAGE SELECTOR REMOTE IN MIC EFFECT INPUT/ OUTPUT JACKS FUSE TERMINAL AUTO ON SWITCH OFF MIC EFFECT Voltage Selector 230V IN 115V AC IN 115V/230V 50Hz/60Hz OUT PRE-OUT PRE-OUT MUSIC EFFECT INPUT/ OUTPUT JACKS DVD BGM AC POWER CORD INPUT LEVEL VCD AUX DVD Connect the output jacks of the DVD player to these jacks. VCD Connect the output jacks of the VCD player to these jacks.
DESCRIPTIONS AND FUNCTIONS INPUT LEVEL Turn this input level control to adjust the input level. Turn the input level control counterclockwise to reduce the input level. Turn the input level control clockwise to raise the input level. MUSIC EFFECT INPUT/OUTPUT JACKS The EFFECT allows the AKJ7404 user to add any sound effecter, such as an equalizer, as a part of the music loop in the AKJ7404 unit.
SYSTEM CONNECTIONS MIC MIC TV Monitor TV Monitor TV Monitor TV Monitor MIC EFFECT Voltage Selector 230V IN 115V OUT PRE-OUT MIC EFFECTOR DVD VCD Video Deck BGM Cassette Deck 8 Graphic Equalizer Power Ampilifer AC IN 115V/230V 50Hz/60Hz
PRINCIPLE OF AUDIO VIDEO SWITCHOVER PRE-OUT 1 2 9
GENERAL OPERATION 7 AKJ7404 PROFESSIONAL KARAOKE MIXER WITH DIGITAL ECHO,KEY,AND FEEDBACK CONTROLS AUTO Notes for Proper Use of a Microphone Connect a desired number of microphones to the microphone inputs on the AKJ7404. Hold a microphone to have the top of its windscreen 1 to 2 inches away from your mouth. Turn on the power of the AKJ7404 and other needed components. (Press the POWER button on this unit to turn on the power.) To get the best pickup result, point the microphone toward your mouth.
REMOTE CONTROL COMMANDER DESCRIPTIONS AND FUNCTIONS KEY CONTROL BUTTONS UPWARD BUTTONS(#1 to#6) The key can be transposed upward from the natural key up to one and a half notes. (Total 6 steps. Each step is 1/4 note.) NATURAL KEY BUTTON( ) Press to reset to the natural key. DOWNWARD BUTTONS (b1 TO b6) The key can be transposed downward from the natural key up to one and a half notes. ( Total 6 steps. Each step is 1/4 note .
SAFETY PRECAUTIONS In case of abnormality In case an abnormal noise or smell is generated from the unit during use, immediately switch the power off, unplug the power cord from the power outlet,and consult your dealer or an authorized service center for a check-up.
TROUBLESHOOTING MAINTENANCE When the set gets dirty, wipe with a soft, dry cloth. If the set is extremely dirty, soak a soft cloth in a 5 to 6% solution of dishwashing detergent to water, wring it tightly, wipe the dirt away, and finally wipe the set with a dry cloth. Never use alcohol, thinner, benzine, insecticide or other volatile agents, as they may damage the surface paint or gloss of the set.
SPECIFICATIONS Mixer Total Harmonic Distortion ............................ 0.03% Input Jacks(Sensitivity/Impedance) MIC(1 ,A/2,B/3) ............................. 3.5mV/5kΩ DVD,VCD,AUX,TAPE ...................... 220mV/23kΩ BGM .......................................... 220mV/30kΩ Output Jacks(Output level/Output impedance) PRE OUT .......................................... 2V/150Ω Frequency Responses MIC ............................. 20Hz to 25kHz,+3/-3dB MUSIC .........................
SERVICE INFORMATION SERVICE INFORMATION SHIPPING DAMAGE If the shipping carton is found to be damaged, notify the delivery company immediately. Save the damaged carton as evidence for the delivery company to inspect. It is the responsibility of the consignee to file a claim with the delivery company for any damaged that occurs during shipping. In the case that the shipping carton is in good condition but ® the unit is damaged or defective, call Audio2000'S at 805-523-2759.
