VocoPro Stereo Amplifier DA 3800 PRO User Manual

R
TM  
THE SINGER'S ULTIMATE CHOICE  
FEATURES:  
• 100W + 100W maximum power output Mixing Amplifier  
• 9-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  
• Master Music and Microphone Volume controls  
• Four dedicated RCA L/R audio input channels  
• Four RCA style Video Inputs and Two Video Outputs  
DA-3800 PRO  
Digital Karaoke Mixing Amplifier  
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DA-3800 PRO  
Table of Contents  
Introduction  
Safety instructions...................................2  
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 ...........9-13  
Connecting TV’s/monitors ......................14  
Descriptions and Functions  
Front panel......................................15-17  
Rear panel ......................................18-19  
Remote Control.....................................20  
Display Panel ........................................21  
Specifications........................................22  
Troubleshooting.....................................23  
R
TM  
THE SINGER'S ULTIMATE CHOICE  
1
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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  
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.  
CAUTION: To reduce the risk of electric shock,  
do not remove cover (or back). No user-  
serviceable parts inside. Only refer servicing to  
qualified service personnel.  
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  
To reduce the risk of fire or electric shock, do  
not expose this unit to rain or moisture.  
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.  
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  
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.  
instructions should be retained for future reference.  
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. The power supply cord or plug has been damaged; or  
B. Objects have fallen into the appliance; or  
C. The appliance has been exposed to rain; or  
D. 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:  
7 A. An appliance and cart combination  
should be moved with care. Quick stops,  
excessive force, and uneven surfaces may  
cause an overturn.  
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.  
2
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FCC INFORMATION (U.S.A.)  
CAUTION:  
1. IMPORTANT NOTICE: DO NOT MODIFY THIS  
READ THIS BEFORE OPERATING YOUR UNIT  
UNIT!: 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.  
1. To ensure the finest performance, please read this  
manual carefully. Keep it in a safe place for future reference.  
2. 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.  
2. IMPORTANT: 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.  
3. Do not operate the unit upside-down.  
3. NOTE: 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:  
4. Never open the cabinet. If a foreign object drops into the  
set, contact your dealer.  
5. 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.  
6. 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.  
7. Do not attempt to clean the unit with chemical solvents:  
this might damage the finish. Use a clean, dry cloth.  
8. Be sure to read the "Troubleshooting" section on common  
operating errors before concluding that your unit is faulty.  
Relocate either this product or the device that is being  
affected by the interference.  
9. 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.  
10. To prevent lightning damage, pull out the power cord  
and remove the antenna cable during an electrical storm.  
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.  
11. 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.  
NOTE:  
Please check the copyright laws in your country  
before recording from records, compact discs,  
radio, etc. Recording of copyrighted material may  
infringe copyright laws.  
CAUTION  
Voltage Selector (General Model Only)  
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 insure  
that the apparatus is indeed fully void if residual power,  
leave unit disconnected from the AC outlet for at least  
fifteen seconds.  
Be sure to position the voltage selector to match the  
voltage of your local power lines before installing the  
unit.  
220V  
110V  
3
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Welcome  
And thank you for purchasing the DA-3800 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  
Tech Support  
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
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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  
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.  
40  
50  
60  
70  
80  
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
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Before Getting Started  
Thank you for purchasing the DA-3800 PRO Digital Karaoke MixIing Amplifier. The DA-3800 PRO will  
provide years of reliability and high quality entertainment for you if used properly. Please read  
this manual carefully before using your DA-3800 PRO to ensure best performance.  
Unpacking the DA-3800 PRO  
Carefully remove the DA-3800 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 DA-3800 PRO:  
ITEMS:  
QUANTITY:  
DA-3800 PRO  
1
1
1
2
1
2
Video/Stereo RCA Patch Cable  
Remote Control  
AA Batteries  
AC Power Cable  
Rack Brackets  
6
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Getting Connected  
About the Remote Control  
Connecting the Power Cable  
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.  
• 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.  
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.  
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
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Getting Connected  
Preparing the Speaker Cable  
Connecting Speakers  
You can either used an exposed speaker wire or Banana  
Plug 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.  
Exposed Speaker Wire  
1. Remove approximately 3/8” (10mm) of insulation  
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OF FIRE OR ELECTRIC SHOCK, DO  
NOT EXPOSE THIS EQUIPMENT TO  
RAIN OR MOISTURE  
 
CAUTION: TO  
REDUCE THE  
RISK OF FIRE,  
REPLACE  
ONLY WITH  
SAME TYPE  
FUSE  
 
 
110V  
 
2. Twist the exposed wires together to prevent short circuits  
 
 
220V  
THE POWER  
SUPPLY CORD  
SHOULD BE  
DISCONNECTED  
BEFORE  
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CHANGING THE  
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SELECTOR  
• Before connecting the speakers, make sure that the DA-  
3800 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 DA-  
3800 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:  
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  
DA-3800 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 DA-3800 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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8
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Getting Connected cont.  
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Connecting to the REC OUT or LINE OUT jacks  
The L/R (red and white) RCA Record Output or Line 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)  
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What you will need:  
• Powered device with L/R RCA inputs  
• RCA L/R audio cable (red & white)  
 
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1. Connect one end of the red and white RCA cable to the  
REC OUT jacks on the DA-3800 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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9
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Getting Connected cont.  
Connecting to the DA-3800 PRO’s Inputs  
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There are four available A/V input channels which allow you  
to connect up to four A/V players to the DA-3800 PRO:  
BGM, DVD, CD, and AUX.  
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Connecting a DVD, CD or other A/V Player with  
RCA Audio and Video Outputs to the BGM Input  
A DVD, CD or other A/V player can be connected to the  
BGM inputs using the L/R (red & white) RCA audio inputs  
and the RCA video (yellow) input.  
 
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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 BGM L/R audio inputs on the DA-3800 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 DA-3800 PRO’s rear panel  
3. Select the proper input channel on the DA-3800 PRO.  
NOTE: All four 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 DA-3800  
PRO front panel until the BGM input channel is displayed  
on the screen  
Remote Control: Press the input button on the remote  
control until the BGM input channel is displayed on the  
screen  
10  
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Getting Connected cont.  
Connecting a DVD Player with RCA Audio and Video  
Outputs to the DVD Input  
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A DVD player can be connected to the DVD inputs using  
the L/R (red & white) RCA audio inputs and the RCA video  
(yellow) input.  
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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  
 
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2. Connect the other end of the red and white RCA audio  
cable to the DVD L/R audio inputs on the DA-3800 PRO  
rear panel  
Video  
FL  
FR  
Y/R  
PB/G  
PR/B  
VIDEO  
1. Connect one end of the RCA video cable to the RCA video  
output on your player  
SW  
DVG-777K  
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CAUTION  
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2. Connect the other end of the RCA video cable to the DVD  
RCA video inputs on the DA-3800 PRO’s rear panel  
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CAUTION: TO PREVENT ELECTRIC  
SHOCK, DO NOT REMOVE COVER  
SCREWS NO USER-SERVICEABLE  
PARTS INSIDE. REFER SERVICING  
TO QUALIFIED PERSONNEL  
CEN  
ML  
MR  
COAXIAL  
S-VIDEO  
OPTICAL  
SL  
SR  
3. Select the proper input channel on the DA-3800 PRO.  
NOTE: All four 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  
Front panel: Press the INPUT button on the DA-3800  
PRO front panel until the DVD input channel is displayed  
on the screen  
Remote Control: Press the input button on the remote  
control until the DVD input channel is displayed on the  
screen  
11  
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Getting Connected cont.  
Connecting a CD Player with RCA Audio and Video  
Outputs to the CD Input  
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A CD player can be connected to the CD inputs using the L/  
R (red & white) RCA audio inputs and the RCA video (yellow)  
input.  
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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 CD L/R audio inputs on the DA-3800 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 the CD  
RCA video inputs on the DA-3800 PRO’s rear panel  
 
 
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3. Select the proper input channel on the DA-3800 PRO.  
 
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NOTE: All four 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 DA-3800  
PRO front panel until the CD input channel is displayed on  
the screen  
Remote Control: Press the input button on the remote  
control until the CD input channel is displayed on the  
screen  
12  
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Getting Connected cont.  
Connecting a AUXILIARY Player with RCA Audio and  
Video Outputs to the AUX Input  
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A DVD, CD or other A/V player can be connected to the  
AUX inputs using the L/R (red & white) RCA audio inputs  
and the RCA video (yellow) input.  
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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 AUX L/R audio inputs on the DA-3800 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 the AUX  
RCA video inputs on the DA-3800 PRO’s rear panel  
3. Select the proper input channel on the DA-3800 PRO.  
NOTE: All four 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  
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Front panel: Press the INPUT button on the DA-3800  
PRO front panel until the AUX input channel is displayed  
on the screen  
Remote Control: Press the input button on the remote  
control until the AUX input channel is displayed on the  
screen  
13  
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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 DA-3800 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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WARNING: TO REDUCE TH  
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OF FIRE OR ELECTRIC SH  
NOT EXPOSE THIS EQUIP  
RAIN OR MOISTURE  
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110V  
220V  
THE POWER  
SUPPLY CORD  
SHOULD BE  
DISCONNECTED  
BEFORE  
�  
�  
��  
CHANGING THE  
VOLTAGE  
�  
�  
�  
 
�  
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SELECTOR  
 
CH  
+
MENU  
VOL  
+
CH  
-
VOL  
-
TV/AV  
POWER  
�  
�  
14  
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Front Panel  
Descriptions and Functions  
1. POWER - Use this button to turn the DA-3800 PRO ON or OFF.  
2. DISPLAY - Displays setting information (i.e. KEY CONTROL, AUTO, LOUD, TALK).  
3. REMOTE SENSOR - When operating the DA-3800 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. ECHO - This controls the overall level for the ECHO effect on all three MIC INPUTS. This effect gives a  
spacious or ambient feeling that works great with vocals. Rotate clockwise to increase the amount of  
ECHO 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.  
6. MUSIC VOLUME - This control adjusts the output level for whichever player connected to an AUDIO  
INPUT and assigned with the INPUT selector. Turn clockwise to increase output and counter-clockwise to  
decrease.  
7. DIGITAL KEY CONTROL - 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.  
15  
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Front Panel  
Descriptions and Functions cont.  
 
��  
 
 
 
 
8. 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.  
9. 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.  
10. INPUT - This button allows you to select between BGM, DVD, CD and AUX player intput to the DA-3800  
PRO. This allows the DA-3800 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 DA-3800 PRO automatically switch to  
BGM (Background Music) when the signal from DVD, CD or AUX is stopped. Note: The switch to BGM  
when the signal stops may take a few seconds.  
11. 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.  
12. 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.  
13. MIC 1, 2, 3 INPUTS - Connect your 1/4” cabled microphones into any of these three inputs.  
14. 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.  
16  
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Front Panel  
Descriptions and Functions cont.  
 
 
 
�� �  
MIC CONTROLS  
15. DELAY - This control adjusts the length of time for each ECHO interval, or REPEAT. Rotating the DELAY  
control clockwise will increase the DELAY, creating the effect of more “space.”  
16. EFFECT - This control adjusts the output volume of all echo connected.  
17. REPEAT - This control adjusts the number of ECHO repeats applied to the signal until the effect decays,  
or fades out.  
18. BASS - This control adjusts the low end frequency level of your MIC INPUT.  
19. MIDDLE - This control adjusts the mid-range frequency level of your MIC INPUT.  
20. TREBLE - This control adjusts the high end frequency level of your MIC INPUT.  
MUSIC CONTROLS  
21. BALANCE - This control adjusts the balance of the output to the left or right channel.  
22. BASS - This control adjusts the low end frequency level of your MUSIC source.  
23. MIDDLE - This control adjusts the mid-range frequency level of your MUSIC source.  
24. TREBLE - This control adjusts the high end frequency level of your MUSIC source.  
17  
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Rear Panel  
Descriptions and Functions  
�  
���  
 
�  
�  
 
�  
 
 
1. BGM VOLUME CONTROL - This controls the output level of the BGM (Background Music) source. Turn  
clockwise to increase output, counter-clockwise to decrease. Adjust with a flat-head screwdriver.  
2. BGM RCA INPUT - RCA audio/video input for the BGM input channel. Connect here using a standard  
white/red/yellow RCA cable.  
3. DVD RCA INPUT - RCA audio/video input for the DVD input channel. Connect here using a standard  
white/red/yellow RCA cable.  
4. CD RCA INPUT - RCA audio/video input for the CD input channel. Connect here using a standard white/  
red/yellow RCA cable.  
5. AUX RCA INPUT - RCA audio/video input for the AUX input channel. Connect here using a standard  
white/red/yellow RCA cable.  
6. LINE 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 inpuits.  
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.  
18  
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Rear Panel  
Descriptions and Functions cont.  
 
WARNING: TO REDUCE THE RISK  
OF FIRE OR ELECTRIC SHOCK, DO  
NOT EXPOSE THIS EQUIPMENT TO  
RAIN OR MOISTURE  
���  
����  
���  
�  
 
CAUTION: TO  
REDUCE THE  
RISK OF FIRE,  
REPLACE  
ONLY WITH  
SAME TYPE  
FUSE  
�  
���  
 
 
220V  
 
 
 
110V  
THE POWER  
SUPPLY CORD  
SHOULD BE  
DISCONNECTED  
BEFORE  
�  
�  
��  
CHANGING THE  
VOLTAGE  
�  
�  
�  
 
�  
��  
SELECTOR  
�����  
 
 
��  
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-insterting 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 115V and 230V 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 DA-3800 PRO’s fuse. Use only FUSE type F3.15AL,  
250V when replacing the fuse.  
11. AC INPUT - Connect the power cable here.  
19  
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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. DIGITAL KEY CONTROL - 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.  
2. 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.  
3. 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.  
4. INPUT - This button allows you to select between BGM, DVD,  
CD and AUX player output to the DA-3800 PRO. This allows  
the DA-3800 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 DA-3800 PRO automatically switch to BGM when the  
signal from DVD, CD or AUX is stopped.  
5. ECHO - This control is the overall level for the ECHO effect on all  
three MIC INPUTS. Use the  
the  
to increase the ECHO effect and  
to reduce the ECHO effect. You will see the controls on  
the DA-3800 PRO move as you make adjustments using the  
remote keys.  
6. MIC VOLUME - Use the  
to raise the MIC MASTER VOLUME  
to lower this mixed MIC MASTER VOLUME. You  
and the  
will see the controls on the DA-3800 PRO move as you make  
adjustments using the remote keys.  
7. MUSIC VOLUME - Use the  
to raise the MUSIC VOLUME and the  
to lower the MUSIC VOLUME.  
You will see the controls on the DA-3800 PRO move as you make adjustments using the remote keys.  
20  
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Display Panel  
Descriptions and Functions  
1. INPUT INDICATOR - Each of these will illuminate to indicate which input has been selected, BGM  
(Background Music), DVD, CD and AUX. These correspond to the input channels on the rear of the unit.  
2. LOUD (LOUDNESS CONTROL) INDICATOR - This indicator will illuminate when the LOUD mode has been  
enabled. 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.  
3. TALK OVER INDICATOR - This indicator will illuminate when the TALK OVER mode has been enabled.  
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 use. The volume will gradually fade-in once the microphone is no longer in use.  
4.AUTO INDICATOR - This indicator will illuminate when the AUTO mode has been enabled. This mode will  
have the DA-3800 PRO automatically switch to BGM (Background Music) when the signal from DVD, CD  
or AUX is stopped. Note: The switch to BGM when the signal stops may take several seconds.  
5. IR SENSOR - This sensor receives the infrared signal from the REMOTE CONTROL. When operating the  
DA-3800 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  
deflection.  
6. DIGITAL KEY CONTROL - Shows the current key control setting.  
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.  
21  
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DA-3800 PRO Specifications  
MAX POWER OUTPUT (1KHz, 8)...... 100W + 100W  
TOTAL HARMONIC DISTORTION .......... 0.05% (1 KHz, 60W, 8)  
AUDIO  
MICROPHONE .................................. 12mV/2KΩ  
BGM/DVD/CD/AUX ........................ 300mV/51KΩ  
VIDEO  
DVD/ AUX / CDG ............................ 1V P-P/75Ω  
FREQUENCY RESPONSE  
MIC ................................................ 40Hz–15kHz ±3db  
MUSIC ............................................ 20Hz–20kHz ±2db  
TONE CONTROL (MUSIC / MIC)  
BASS .............................................. ±12dB (100Hz)  
MID ................................................ ±8dB (2KHz)  
TREBLE ........................................... ±12dB (10KHz)  
SPEAKER IMPEDANCE  
ONE CHANNEL (1 OR 2) .................... 4 - 16Ω  
TWO CHANNELS (1 AND 2)............... 8 - 32Ω  
POWER SUPPLY, OTHER  
POWER REQUIREMENTS.................... AC 110V/220V 50Hz/60Hz  
POWER CONSUMPTION..................... 350 WATT  
DIMENSIONS  
(W x D x H):..................................... 430mm x 360mm x 130mm (16.93in x 14.17in x 5.12in)  
WEIGHT .......................................... 7.5 Kg (16.5 lbs)  
ACCESSORIES  
AC POWER CORD............................. 1  
RCA CABLES.................................... 1  
OPERATING INSTRUCTIONS................ 1  
REMOTE CONTROL............................ 1  
BATTERIES AA.................................. 2  
WARRANTY CARD............................ 1  
22  
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Troubleshooting  
• Make sure the DA-3800 PRO is set to the correct  
input.  
No sound output.  
• Make sure the volume is turned up.  
• Make sure everything is connected firmly and properly.  
• Make sure there are no defective cables.  
• Make sure all of your components are turned on.  
• Make sure the DA-3800 PRO is set to the BGM input.  
• Make sure the rear BGM volume is turned up.  
No sound output when BGM source is playing.  
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 DA-3800 PRO power is not 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 DA-3800 PRO.  
23  
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NOTES  
24  
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�  
DA-3800 PRO owner’s manual  
Version 1.0  
© VocoPro 2007  
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