VocoPro KR-3808 PRO Operating instructions

VocoPro KR-3808 PRO Operating instructions
FEATURES:
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150W + 150W maximum power output Mixing Amplifier
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4 Step Digital Key Controller for transposing natural key of source music
Digital Echo with Repeat and Delay controls to add depth and space to vocals
Three Microphone Inputs with individual Volume controls
Full-function remote control for ease of operation
Built in AM/FM tuner with 60 programmable station presets
Master Music and Microphone Volume controls
Three dedicated RCA L/R audio input channels
Three RCA Video Inputs and Two Video Outputs
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KR-3808
KR
-3808 PRO
Digital Karaoke Receiver with Key Control
KR-3808 PRO
Table of Contents
Introduction
Safety Instructions ...................................2
Safet
FCC Information ......................................3
Welcome ...............................................4
Listening for a Lifetime .............................5
Before Getting Started .............................6
Getting Connected
Remote and Power Cable .........................7
Speakers ................................................8
Connecting Input Source Players ........... 9-12
Connecting TV’s/Monitors ......................13
Descriptions and Functions
Front Panel ..................................... 14-16
Rear Panel ...................................... 17-18
Remote Control .....................................19
Operations............................................20
Troubleshooting .....................................21
1
Safety Instructions
8. Ventilation - The appliance should be situated so its
location does not interfere with its proper ventilation. For
example, the appliance should not be situated on a bed,
sofa, rug, or similar surface that may block the
ventilation slots.
CAUTION
RISK OF SHOCK
CAUTION: To reduce the risk of electric shock,
do not remove cover (or back). No userserviceable parts inside. Only refer servicing to
qualified service personnel.
9. Heat - The appliance should be situated away from
heat sources such as radiators, heat registers,
stoves, or other appliances (including amplifiers)
that produce heat.
10. 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.
Explanation of Graphical Symbols
The lightning flash & arrowhead
symbol, within an equilateral triangle,
is intended to alert you to the
presence of danger.
11. Grounding or Polarization – Precautions should be
taken so that the grounding or polarization means of
an appliance is not defeated.
12. Power-Cord Protection – Power-supply cords
should be routed so that they are not likely to be walked
on or pinched by items placed upon or against them,
paying particular attention to cords at plugs,
convenience receptacles, and the point where they exit
from the appliance.
The exclamation point within an
equilateral triangle is intended to alert
you to the presence of important
operating and servicing instructions.
WARNING
13. Cleaning – Unplug this unit from the wall outlet
before cleaning. Do not use liquid cleaners or
aerosol cleaners. Use a damp cloth for cleaning.
To reduce the risk of fire or electric shock, do
not expose this unit to rain or moisture.
14. Power lines – An outdoor antenna should be
located away from power lines.
1. Read Instructions - All the safety and operating
instructions should be read before the appliance is
operated.
15. Nonuse Periods – The power cord of the appliance
should be unplugged from the outlet when left unused
for a long period of time.
2. Retain Instructions - The safety and operating
instructions should be retained for future reference.
16. Object and Liquid Entry – Care should be taken so
that objects do not fall and liquids are not spilled into the
enclosure through openings.
3. Heed Warnings - All warnings on the appliance and in
the operating instructions should be adhered to.
17. Damage Requiring Service – The appliance should
be serviced by qualified service personnel when:
4. Follow Instructions - All operating and use
instructions should be followed.
A.
B.
C.
D.
The power supply cord or plug has been damaged; or
Objects have fallen into the appliance; or
The appliance has been exposed to rain; or
The appliance does not appear to operate normally
or exhibits a marked change in performance; or
E. The appliance has been dropped, or the enclosure
damaged.
5. Attachments - Do not use attachments not
recommended by the product manufacturer as they may
cause hazards.
6. Water and Moisture - Do not use this unit near water.
For example, near a bathtub or in a wet basement and
the like.
18. Servicing – The user should not attempt to service
the appliance beyond that described in the operating
instructions. All other servicing should be referred to
qualified service personnel.
7. Carts and Stands - The appliance should be used
only with a cart or stand that is recommended by the
manufacturer.
Note:
To CATV system installer’s (U.S.A.): This reminder is
provided to call the CATV system installer’s attention to
Article 820-40 of the NEC that provides guidelines for
proper grounding and, in particular, specifies that the
cable ground shall be connected as close to the point of
cable entry as practical.
7 A. An appliance and cart combination
should be moved with care. Quick stops,
excessive force, and uneven surfaces may
cause an overturn.
2
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�������This product, when installed as indicated in the
instructions contained in this manual, meets FCC
requirements. Modifications not expressly approved by
Vocopro may void your authority, granted by the FCC,
to use this product.
������������� When connecting this product to
accessories and/or another product use only high
quality shielded cables. Cable(s) supplied with this
product MUST be used. Follow all installation
instructions. Failure to follow instructions could void your
FCC authorization to use this product in the U.S.A.
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�� To ensure the finest performance, please read this
manual carefully. Keep it in a safe place for future reference.
�� Install your unit in a cool, dry, clean place - away from
windows, heat sources, and too much vibration, dust,
moisture or cold. Avoid sources of hum (transformers, v
motors). To prevent fire or electrical shock, do not expose to
rain and water.
�� Do not operate the unit upside-down.
�������� This product has been tested and found to
comply with the requirements listed in FCC Regulations,
Part 15 for Class "B" digital devices. Compliance with
these requirements provides a reasonable level of
assurances that your use of this product in a residential
environment will not result in harmful interference with
other electronic devices. This equipment
generates/uses radio frequencies and, if not installed
and used according to the instructions found in the
owner's manual, may cause interference harmful to the
operation of other electronic devices. Compliance with
FCC regulations does not guarantee that interference
will not occur in all installations. If this product is found
to be the source of interference, which can be
determined by turning the unit "Off" and "On", please try
to eliminate the problem by using one of the following
measures:
�� Never open the cabinet. If a foreign object drops into the
set, contact your dealer.
Relocate either this product or the device that is being
affected by the interference.
�� This unit consumes a fair amount of power even when the
power switch is turned off. We recommend that you unplug
the power cord from the wall outlet if the unit is not going to
be used for a long time. This will save electricity and help
prevent fire hazards. To disconnect the cord, pull it out by
grasping the plug. Never pull the cord itself.
Use power outlets that are on different branch (circuit
breaker or fuse) circuits or install AC line filter(s).
In the case of radio or TV interference, relocate/reorient
the antenna. If the antenna lead-in is 300-ohm ribbon
lead, change the lead-in to coaxial type cable.
If these corrective measures do not produce satisfactory
results, please contact your local retailer authorized to
distribute Vocopro products. If you can not locate the
appropriate retailer, please contact Vocopro, 1728
Curtiss Court, La Verne, CA 91750.
�� Place the unit in a location with adequate air circulation.
Do not interfere with its proper ventilation; this will cause the
internal temperature to rise and may result in a failure.
�� Do not use force on switches, knobs or cords. When
moving the unit, first turn the unit off. Then gently disconnect
the power plug and the cords connecting to other
equipment. Never pull the cord itself.
�� Do not attempt to clean the unit with chemical solvents:
this might damage the finish. Use a clean, dry cloth.
�� Be sure to read the "Troubleshooting" section on common
operating errors before concluding that your unit is faulty.
��� To prevent lightning damage, pull out the power cord
and remove the antenna cable during an electrical storm.
��� The general digital signals may interfere with other
equipment such as tuners or receivers. Move the system
farther away from such equipment if interference is
observed.
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Please�check the copyright laws in your country
before recording from records, compact discs,
radio, etc. Recording of copyrighted material may
infringe copyright laws.
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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. To fully ensure
that the apparatus is indeed fully void of residual power,
leave unit disconnected from the AC outlet for at least
fifteen seconds.
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Be sure to position the voltage selector to match the
voltage of your local power lines before installing the
unit.
220V
110V
3
Welcome
And thank you for purchasing the KR-3808 PRO from VocoPro, your ultimate choice in
Karaoke entertainment! With years of experience in the music entertainment business,
VocoPro is a leading manufacturer of Karaoke equipment, and has been providing
patrons of bars, churches, schools, clubs and individual consumers the opportunity to
sound like a star with full-scale club models, in-home systems and mobile units. All our
products offer solid performance and sound reliability, and to reinforce our commitment
to customer satisfaction, we have customer service and technical support professionals
ready to assist you with your needs. We have provided some contact information for
you below.
VocoPro
1728 Curtiss Court
La Verne, CA 91750
Toll Free: 800-678-5348
TEL: 909-593-8893
FAX: 909-593-8890
VocoPro Company Email Directory
Customer Service & General Information
[email protected]
Tech Support
[email protected]
Remember Our Website
Be sure to visit the VocoPro website www.vocopro.com for the latest information on
new products, packages and promos. And while you're there don't forget to check out
our Club VocoPro for Karaoke news and events, chat rooms, club directories and even
a KJ Service directory!
We look forward to hearing you sound like a PRO, with VocoPro, the singer’s ultimate
choice.
FOR YOUR RECORDS
Please record the model number and serial number below, for easy reference, in case of loss or theft. These
numbers are located on the rear panel of the unit. Space is also provided for other relevant information
Model Number
Serial Number
Date of Purchase
Place of Purchase
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. VocoPro and the Electronic Industries Association's Consumer Electronics Group want you to
get the most out of your equipment by playing it at a safe level. One that lets the sound come through
loud and clear without annoying blaring or distortion and, most importantly, without affecting your
sensitive hearing.
Sound can be deceiving. Over time your hearing 'comfort level' adapts to a higher volume of sound. So
what sounds 'normal' can actually be loud and harmful to your hearing. Guard against this by setting
your equipment at a safe level BEFORE your hearing adapts.
To establish a safe level:
• Start your volume control at a low setting.
• Slowly increase the sound until you can hear it comfortably and clearly, and without
distortion.
Once you have established a comfortable sound level:
• Set the dial and leave it there.
• Pay attention to the different levels in various recordings.
Taking a minute to do this now will help to prevent hearing damage or loss in the future. After all, we
want you listening for a lifetime.
Used wisely, your new sound equipment will provide a lifetime of fun and enjoyment. Since hearing
damage from loud noise is often undetectable until it is too late, this manufacturer and the Electronic
Industries Association's Consumer Electronics Group recommend you avoid prolonged exposure to
excessive noise. This list of sound levels is included for your protection.
Some common decibel ranges:
Level
30
40
50
60
70
80
Example
Quiet library, Soft whispers
Living room, Refrigerator, Bedroom away from traffic
Light traffic, Normal Conversation
Air Conditioner at 20 ft., Sewing machine
Vacuum cleaner, Hair dryer, Noisy Restaurant
Average city traffic, Garbage disposals, Alarm clock at 2 ft.
The following noises can be dangerous under constant exposure:
Level
90
100
120
140
180
Example
Subway, Motorcycle, Truck traffic, Lawn Mower
Garbage truck, Chainsaw, Pneumatics drill
Rock band concert in front of speakers
Gunshot blast, Jet plane
Rocket launching pad
-Information courtesy of the Deafness Research Foundation
5
Before Getting Started
Thank you for purchasing the KR-3808 PRO Digital Karaoke Mixing Amplifier. The KR-3808 PRO will provide
years of reliability and high quality entertainment for you if used properly. Please read this manual carefully
before using your KR-3808 PRO to ensure best performance.
Unpacking the KR-3808 PRO
Carefully remove the KR-3808 PRO from its carton. It is recommended that you store the original
packaging materials in case you need to ship this equipment for any reason.
Be sure you have the following parts and components included with your KR-3808 PRO:
ITEMS:
KR-3808 PRO
Video/Stereo RCA Patch Cable
Remote Control
AC Power Cable
Rack Brackets
QUANTITY:
1
1
1
1
2
6
Getting Connected
About the Remote Control
Connecting the Power Cable
• The area between the remote control and the main
unit must be clear of large obstacles.
• Do not expose the remote control sensor to strong
lighting, especially an inverter type fluorescent
lamp as this may cause the remote control to not
function properly.
Plug the supplied AC power cable into the AC inlet
after all other connections are complete and then
plug the AC power cable to an AC wall outlet.
CAUTION
Use the supplied AC cable. Do not use other AC
power cables as doing so may result in fire hazard or
electrical shock.
Installing Batteries in the Remote Control
1. Turn the remote control over and slide the battery
compartment cover off towards the direction of the
arrow.
2. Insert the AA batteries, positioning them according
to the polarity (+, --) markings on the inside of the
battery compartment.
3. Close the battery compartment cover.
Image shown is a generic model for reference.
Image shown is a generic model for reference.
Battery Replacement
If you find that the distance between the remote
control and the main unit must be shorter in order to
use the remote control, this means that the batteries
are low and must be changed. Replace both
batteries with new ones.
Battery Notes:
• Use AA batteries.
• Be sure the polarities (+, -) are correct. (See the
illustration inside the battery compartment).
• Remove the batteries when not using the remote
control for an extended period of time.
• If batteries leak, dispose of them immediately.
Avoid skin, clothing and any other contact with the
leaked material. Clean the battery compartment
thoroughly before installing new batteries.
• Do not mix old and new batteries.
• Do not mix alkaline, standard (carbon-zinc) with
rechargeable (nickel-cadmium) batteries.
7
Getting Connected
Connecting Speakers
Preparing the Speaker Cable
The Speaker Terminals are located on the rear panel.
There are two STEREO terminals. Be sure to connect the
left channel (L), right channel (R), “+” (red) and “--” (black)
properly.
You can either used an exposed speaker wire or Banana
Plug speaker cable.
Exposed Speaker Wire
1. Remove approximately 3/8” (10mm) of insulation.
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WARNING: TO REDUCE THE RISK
OF FIRE OR ELECTRIC SHOCK, DO
NOT EXPOSE THIS EQUIPMENT TO
RAIN OR MOISTURE
CAUTION: TO PREVENT ELECTRIC
SHOCK, DO NOT REMOVE COVER
SCREWS. NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
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CAUTION: TO
REDUCE THE
RISK OF FIRE,
REPLACE
ONLY WITH
SAME TYPE
FUSE
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220V
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THE POWER
SUPPLY CORD
SHOULD BE
DISCONNECTED
BEFORE
CHANGING THE
VOLTAGE
SELECTOR
2. Twist the exposed wires together to prevent short
circuits.
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• Before connecting the speakers, make sure that the KR3808 PRO is disconnected from the power source.
• Do not let the bare speaker wires touch each other or
another metal part of this unit. This could damage the KR3808 PRO and/or the speakers.
3. Loosen the knob on the speaker terminal.
4. Insert the bare wire.
5. Tighten the knob until the wire is secure.
Determining the proper way to connect the speaker
cables:
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The speaker cable is a pair of insulated cables running side
by side. One cable is colored or shaped differently, perhaps
with a stripe, groove or ridges.
1. Connect one end of the striped (grooved, ridged, etc.)
cable to the “+” (red) terminal on the rear panel of the
KR-3808 PRO.
2. Connect the other end of the striped (grooved, ridged,
etc.) cable to the “+” (red) terminal on the speaker.
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3. Connect one end of the “plain” (NO stripes, grooves,
ridges, etc.) cable to the “--” (black) terminal on the rear
panel of the KR-3808 PRO.
4. Connect the other end of the “plain” (NO stripes, grooves,
ridges, etc.) cable to the “--” (black) terminal on the
speaker
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Using Banana Connectors
1. Plug the Banana connectors into the speakers, ensuring
the black and red connectors are aligned properly.
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2. Plug the other ends of the cables into the KR-3808
PRO’s speaker output, ensuring the black and red
connectors are aligned properly.
8
Getting Connected cont.
Connecting to the KR-3808 PRO’s Inputs
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There are three available A/V input channels which allow you
to connect up to three A/V players to the KR-3808 PRO:
DVD, AV1, and AV2.
Connecting a DVD, CD or other A/V Player with
RCA Audio and Video Outputs to the DVD Input
A DVD, CD or other A/V player can be connected to the
DVD input using the L/R (red & white) RCA audio inputs and
the RCA video (yellow) input.
What you will need
• Player with RCA audio and video outputs
• RCA L/R audio cable (red & white)
• RCA video cable (yellow)
Audio
1. Connect one end of the red and white RCA audio cable to
the L/R audio outputs on your player.
2. Connect the other end of the red and white RCA audio
cable to the DVD L/R audio inputs on the KR-3808 PRO
rear panel.
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Video
1. Connect one end of the RCA video cable to the RCA video
output on your player.
2. Connect the other end of the RCA video cable to one of
the RCA video inputs on the KR-3808 PRO’s rear panel.
3. Select the proper input channel on the KR-3808 PRO.
NOTE: All three of the A/V input channels have
RCA audio and video inputs so make sure the
correct one is selected.
Selecting the Correct input channel
Front panel: Press the INPUT button on the KR-3808
PRO front panel until the DVD is illuminated in the display
window.
Remote Control: Press the input button on the remote
control until the DVD is illuminated in the display window.
9
Getting Connected cont.
Connecting a CD+G Player with RCA Audio and Video
Outputs to the CD Input
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A CD+G player can be connected to the AV1 inputs using
the L/R (red & white) RCA audio inputs and the RCA video
(yellow) input.
What you will need
• Player with RCA audio and video outputs
• RCA L/R audio cable (red & white)
• RCA video cable (yellow)
Audio
1. Connect one end of the red and white RCA audio cable to
the L/R audio outputs on your player.
2. Connect the other end of the red and white RCA audio
cable to the AV1 L/R audio inputs on the KR-3808 PRO
rear panel.
Video
1. Connect one end of the RCA video cable to the RCA video
output on your player.
2. Connect the other end of the RCA video cable to the AV1
RCA video inputs on the KR-3808 PRO’s rear panel.
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3. Select the proper input channel on the KR-3808 PRO.
NOTE: All three of the A/V input channels have
RCA audio and video inputs so make sure the
correct one is selected.
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Selecting the Correct input channel
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Front panel: Press the INPUT button on the KR-3808
PRO front panel until AV1 is illuminated in the display
window.
Remote Control: Press the input button on the remote
control until AV1 illuminated in the display window.
10
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Getting Connected cont.
Connecting a Player with RCA Audio and Video
Outputs to the AV2 Input or Mp3 Player to the 1/8”
input
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A DVD, CD or other A/V player can be connected to the
AV2 inputs using the L/R (red & white) RCA audio inputs
and the RCA video (yellow) input, or the 1/8” input can be
used to connect an Mp3 player or laptop.
What you will need to connect to the AV2 RCA input
• Player with RCA audio and video outputs
• RCA AV cable (red, white and yellow)
Audio
1. Connect one end of the red and white RCA audio cable to
the L/R audio outputs on your player.
2. Connect the other end of the red and white RCA audio
cable to the AUX L/R audio inputs on the KR-3808 PRO
rear panel.
Video
1. Connect one end of the RCA video cable to the RCA video
output on your player.
2. Connect the other end of the RCA video cable to the AUX
RCA video inputs on the KR-3808 PRO’s rear panel.
3. Select the proper input channel on the KR-3808 PRO.
What you will need to connect to the AV2 1/8” input
• Mp3 Player, Laptop, or Player with 1/8” audio output
• 1/8” cable
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Audio
1. Connect one end of the 1/8” cable to the output on your
player.
2. Connect the other end of the 1/8” cable to the 1/8”
input the KR-3808 PRO front panel.
Selecting the Correct input channel
Front panel: Press the INPUT button on the KR-3808
PRO front panel until AV2 is illuminated in the display
window.
Remote Control: Press the input button on the remote
control until AV2 is illuminated in the display window.
11
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Getting Connected cont.
Connecting to the REC OUT or LINE OUT jacks
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The L/R (red and white) RCA Record Output or PRE (Line
Level) Output jacks on the rear panel can be connected to
any self-powered input device with RCA inputs (i.e. recording
device, powered speakers, etc).
What you will need:
• Powered device with L/R RCA inputs
• RCA L/R audio cable (red & white)
1. Connect one end of the red and white RCA cable to the
REC OUT jacks on the KR-3808 PRO’s rear panel.
2. Connect the other end of the red and white RCA cable
to the RCA inputs on the recording device, powered
speakers, etc.
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12
Getting Connected cont.
Connecting to a TV using the RCA Video (yellow) Output
What you will need
• TV/ video monitor with an RCA video input
• RCA video cable (yellow)
1. Connect one end of the RCA video cable to either of the two RCA video OUT jack on the KR-3808 PRO rear panel.
2. Connect the other end of the RCA video cable to the RCA video input on the TV/Video monitor.
3. Make sure the TV/Video monitor is set to the correct video input. Consult the TV/Video monitor’s user manual for
the necessary instructions.
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CH +
CH -
MENU
VOL +
VOL -
TV/AV
POWER
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13
Front Panel
Descriptions and Functions
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1. POWER - Use this button to turn the KR-3808 PRO ON or OFF.
2. DISPLAY - Displays setting information.
3. REMOTE SENSOR - When operating the KR-3808 PRO with the REMOTE CONTROL, direct the REMOTE
towards this SENSOR within 23 feet. Maintain a line of sight between REMOTE and REMOTE SENSOR
clear of obstacles to prevent signal blockage.
4. EFFECT - This controls the overall level for the effects on all three MIC INPUTS. Rotate clockwise to
increase the amount of effect applied to the signal, and counter-clockwise to decrease.
5. MIC VOLUME - This control adjusts the output level for MIC 1, 2 and 3. Turn clockwise to increase
output and counter-clockwise to decrease. MIC MAX - This control adjusts the maximum output level of
the MIC VOLUME control. Turn clockwise to increase the maximum level, counter-clockwise to decrease.
Adjust with a flat-head screwdriver.
6. MUSIC VOLUME - This control adjusts the output level for which-ever player connected to an AUDIO
INPUT and assigned with the INPUT selector. Turn clockwise to increase output and counter-clockwise to
decrease. MUSIC MAX - This control adjusts the maximum output level of the MUSIC VOLUME control.
Turn clockwise to increase the maximum level, counter-clockwise to decrease. Adjust with a flat-head
screwdriver.
7. AV2/Mp3 INPUT - Connect an AV device to the RCA jacks or Mp3 player to the 1/8” jack.
8. HEADPHONE JACK - Connect your 1/4” cabled headphones to this output.
9. MIC 1, 2, 3 INPUTS - Connect your 1/4” cabled microphones into any of these three inputs.
14
Front Panel
Descriptions and Functions cont.
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10. MICROPHONE VOLUME CONTROLS - These level controls for MIC 1, 2 and 3 should be adjusted
individually to get the best mix when multiple performers are singing. Rotate clockwise to increase and
counter-clockwise to decrease VOLUME for each mic.
11. MIC EFFECT
DELAY - This control adjusts the length of time for each ECHO interval, or REPEAT. Rotating the DELAY
DELA
control clockwise will increase the DELAY, creating the effect of more “space.”
ECHO - This control adjusts the level of echo. Rotate clockwise to increase the level of echo and counterclockwise to decrease.
REPEAT - This control adjusts the number of ECHO repeats applied to the signal until the effect decays,
or fades out.
12. MIC EQ
BASS - This control adjusts the low end frequency level of your MIC INPUT.
MIDDLE - This control adjusts the mid-range frequency level of your MIC INPUT.
TREBLE - This control adjusts the high end frequency level of your MIC INPUT.
13. BALANCE - This control adjusts the balance of the output to the left or right channel.
14. MUSIC EQ
BASS - This control adjusts the low end frequency level of your MUSIC source.
MIDDLE - This control adjusts the mid-range frequency level of your MUSIC source.
TREBLE - This control adjusts the high end frequency level of your MUSIC source.
15
Front Panel
Descriptions and Functions cont.
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15. DIGITAL KEY CONTROL/SCAN AND TUNE - While the input is set to DVD, AV1 or AV2 these buttons
will adjust the key of your source music in half-step increments to match the natural range of your voice
using these buttons.
Flat - lower the key.
Sharp - raise the key.
Natural - return to the original key of the music input source.
You will see the DISPLAY reflect the KEY CONTROL step you have selected. The increase in numbers for
both flat ( ) and sharp ( ) represent an increase in amount of key change from the original or natural,
1 being the least amount, 4 being the most.
SCAN AND TUNE - When the input is set to TUNER, these buttons will scan and tune radio stations.
Use the tune buttons to change the radio frequency up or down. Use the scan button to automatically
find the next strong radio station. See the operations section of this manual for details about setting
radio station presets.
16. LOUD (LOUDNESS CONTROL) - For an instant music Volume/Gain, the LOUD button is an easy way to
improve your mix when you need an extra boost. Perfect for varying volume controls between tracks or
singers.
17. TALK OVER - Turning this setting on will instantly reduce the volume of the the music while any MIC on
any of the three MIC INPUTS are in, spoken or sung into. The volume will gradually fade-in once the
microphone is no longer in use.
18. INPUT - This button allows you to select between DVD, AV1 and AV2 input to the KR-3808 PRO. This
allows the KR-3808 PRO to differentiate between all the related source AUDIO INPUT options available
on the back panel. If the button is held for approximately one second, the AUTO setting will be selected
and highlighted on the display. This mode will have the KR-3808 PRO automatically switch to the DVD
input when the signal from AV1 or AV2 is stopped. Note: The switch to DVD when the signal stops may
take a few seconds.
19. FM/AM - This button switches between AM and FM radio when the tuner is selected.
20. ST/MO - This button switches between stereo and mono while using the tuner set to FM.
21. PRESET CHANNEL -/+ - These buttons change the radio station preset channel. Preset + will switch
to the next preset channel and preset - will switch to the previous preset channel. See the operations
section of this manual for details about setting radio station presets.
16
Rear Panel
Descriptions and Functions
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1. DVD VOLUME CONTROL - This controls the output level of the DVD source. Turn clockwise to increase
output, counter-clockwise to decrease.
2. DVD RCA INPUT - RCA audio/video input for the DVD input channel. Connect here using a standard
white/red/yellow RCA cable.
3. AV1 RCA INPUT - RCA audio/video input for the AV1 input channel. Connect here using a standard
white/red/yellow RCA cable.
4. FM ANTENNA INPUT - FM ANTENNA input. Connect the FM antenna to this jack for FM radio reception.
5. AM ANTENNA INPUT - AM ANTENNA loop. Connect the AM antenna to the jack for AM radio reception.
6. PRE (Line Level) RCA OUTPUT - Connect a standard white/red/yellow RCA cable from this output to the
video input of your TV or other video monitor device and to powered speakers or any device with RCA
inputs.
7. RECORD RCA OUTPUT - These RCA output jacks are designated for connection to a recording device
such as a cassette deck, CD burner or hard drive recorder.
17
Rear Panel
Descriptions and Functions cont.
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8. SPEAKER OUTPUT - You can connect two different speakers between SPEAKERS OUTPUT L and R.
Exposed speaker wire can be used by removing the corresponding left or right knob from the speaker
terminal by turning counter-clockwise, inserting the wire and re-inserting the knob and securing it by
tightening clockwise. “Banana plug” style speaker cables can also be used for left and right of each
pair. Refer to the “Getting Connected” portion of this manual for further information on connecting your
speakers and the use of “banana plug” connections.
9. VOLTAGE SELECTOR - Using this switch you can select between 110V and 220V power settings.
NOTE: The power supply cord should be disconnected before changing the voltage selector.
10. FUSE - This plastic cover is the housing for the KR-3808 PRO’s fuse. Use only the type marked on the
rear panel when replacing the fuse.
11. AC INPUT - Connect the power cable here.
18
Remote Control
Descriptions and Functions
The maximum operating distance between the Remote Control and the REMOTE SENSOR is approximately 23 feet. If
the effective distance of the Remote decreases, replace the batteries. To install new batteries, remove the battery
compartment lid on the back of the Remote and insert two AA batteries with polarities aligned.
1. INPUT - This button allows you to select between DVD, AV1, AV2, and
TUNER inputs.
2. TALK OVER - Turning this setting on will instantly reduce the volume
of the the music while any MIC on any of the three MIC INPUTS are
in, spoken or sung into. The volume will gradually fade-in once the
microphone is no longer in use.
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3. LOUD (LOUDNESS CONTROL) - For an instant music Volume/Gain, the
LOUDNESS button is an easy way to improve your mix when you need
an extra boost. Perfect for varying volume controls between tracks or
singers.
4. NUMBER PAD - Use these buttons to access preset radio stations.
See the operations section for details about setting the radio station
presets.
5. SCAN - Use this button to automatically find the next strong radio
station.
6. FM/AM - Use these buttons to switch between AM and FM.
7. MEMORY - Use this button to set the radio station preset. See the
operations section for details about setting the radio station presets.
8. ST/MO - Use these buttons to switch between stereo and mono while
using the tuner set to FM.
9. DIGITAL KEY CONTROL/TUNE+- - Adjust
djust the key of your source music
in half-step increments to fit the natural range of your voice using these
buttons.
Flat - lower the key.
Sharp - raise the key.
Natural - return to the original key of the music input source.
You will see the DISPLAY reflect the KEY CONTROL step you have
selected. The increase in numbers for both flat and sharp
represent an increase in amount of key change from the original or
natural, 1 being the least amount, 4 being the most.
TUNE+- - While in TUNER mode use the + and - buttons to change the
radio station.
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10. CH+/CH- - Use these buttons to change between the radio station
preset channels. CH+ will go to the next preset, and CH- will go to the
previous preset. See the operations section for details about setting
the radio station presets.
11. EFFECT - This control is the overall
verall level of effect on all three MIC INPUTS. Use the up ( ) button to increase the
effect and the down ( ) button to reduce the effect.
12. MIC VOLUME - Use the up ( ) button to raise the MIC MASTER VOLUME and the down ( ) button to lower this
mixed MIC MASTER VOLUME.
13. MUSIC VOLUME - Use the up ( ) button to raise the MUSIC VOLUME and the down ( ) button to lower the MUSIC
VOLUME.
19
Operations
Setting the Radio Station Presets
There are 60 programmable radio station presets available on the KR-3808 PRO (30 for AM and 30 for FM).
To set a radio station preset.
1. Use the PRESET CHANNEL + and - (CH+ and CH- on remote control)
ol) to select a preset number
number, ie
CH4.
2. Use the SCAN or TUNE buttons to select the radio station you would like to assign to the preset.
3. Press and hold the SCAN button on the front panel (memory on remote control) to assign the current
radio station to CH4.
4. Repeat the previous steps for addition presets.
Using the AUTO Feature
The AUTO feature is designed to conveniently switch between active input channels and eliminate moments of silence
between Karaoke performances. When playback is initiated on a player connected to the AV1 or AV2 channels, the
KR-3808 automatically selects that channel as the active input channel. When there is no signal detected from the
AV1 or AV2 channels, the KR-3808 automatically switches to the DVD channel.
To utilize the DVD channel, simply connect a source player to the DVD jacks and have it set to repeat playback or
similar playback mode with a steady stream of music/video output. When playback ends on a player connected to the
AV1 or AV2 channels, DVD channel playback will immediately begin eliminating extended periods of silence between
performances.
To adjust the level of the DVD audio, use the DVD LEVEL dial on the back panel, located near the DVD input.
To enable the AUTO feature, press and hold the INPUT button down until the AUTO indicator is illuminated.
To disable the AUTO feature, press the INPUT button to return to manual input selection.
Note: The switch to DVD when the signal stops may take a few seconds.
Using the TALK OVER Feature
The talk over function can be useful for making announcements without having to manually adjust the master volume.
With the talk over function active, the music volume will be reduced automatically when the microphones are spoken
into. For Karaoke, it’s recommended that you leave the talk over function off.
To enable the talk over function, press the T
TALK button on the front panel or remote control. The TALK light will
illuminate in the display window.
To turn off the talk over function, press the TALK button on the front panel or remote control. The T
TALK light will turn
off in the display window.
20
Troubleshooting
No sound output.
• Make
input.
• Make
• Make
• Make
• Make
sure the KR-3808 PRO is set to the correct
sure
sure
sure
sure
the volume is turned up.
everything is connected firmly and properly.
there are no defective cables.
all of your components are turned on.
No sound output when DVD source is playing.
• Make sure the KR-3808 PRO is set to the DVD input.
• Make sure the rear DVD volume is turned up.
There is music but no microphone vocals.
• Make sure the microphone is turned on.
• Make sure the microphone cable is not disconnected
or damaged.
• Make sure the microphone master volume or individual
microphone volume controls are turned up to the
proper level.
The remote control is not working.
• The KR-3808 PRO power is not on. Make sure the
main power switch is on.
• Make sure the batteries are inserted correctly and not
out of power.
• Make sure there is nothing blocking the view between
the remote control and the remote sensor on the front
of the KR-3808 PRO.
21
KR-3808 PRO owner’s manual
Version 1.0302
© VocoPro 2010
www.vocopro.com
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