Uni-Art Precise SP4790 User manual

SP4790
Wireless 900MHz Speaker

User’s Manual
Please read before using the equipment
INTRODUCTION
This 900 MHz stereo wireless speaker system uses latest wireless technology that
enables you to enjoy music and TV sound anywhere inside or outside your home.
You can simply connect the system to any audio source such as Radio, TV, VCR,
Hi-Fi and iPod/CD/MP3/VCD/DVD player. Without complicated wiring and
installation with your Audio/Video equipments and rear channel amplifier, the
system enables you to enjoy thrilling, lifelike sound stereo in minutes.
FEATURES
zPhase Lock Loop (PLL) transmission system on product.
z900 MHz RF technology stereo speaker systems.
zRF technology lets you roam freely throughout your house.
zVertical and Horizontal Positioning
zOperating distance up to 50 Meters
zNo line of sight limitation.
zVirtually interference free stereo quality.
zWall-Mountable
zALC and auto ON/OFF control.
zAuto tuning function.
zStereo (L and R) and Mono Selection
zRemote Control is provided
PACKAGE INCLUDES
1 x Transmitter
1 x AC/DC 8V 200mA PowerAdaptor for Transmitter
2 x Speakers

2 x AC/DC 9V 1.2A Power Adaptor for Speakers
1 x 1.5M Long Audio Cable
1 x Short "Y-Cord" RCA Adaptor Cable.

COMPONENT IDENTIFICATION
TRANSMITTER
SPEAKER RECEIVERS
1. Power LED Indicator
2. Signal LED Indicator
3. Audio In
4. Channel Selector
5. DC In For Transmitter
6. Speaker Grill and Power/Signal LED Indicator
7. Infrared Receiver
8. Volume Up

9. Power On/Off
10. Tune
11. Volume Down
12. Battery Compartment
13. Battery Door
14. Door Lock
15. DC In For Speaker
16. Left/Mono/Right Selection
17. Power On/Off
18. Volume Up
19. Tune
20. Volume Down
21. Mute
22. Lanyard Ring
INSTALLATION
TRANSMITTER
1. Plug the supplied 8V AC/DC power adaptor in the DC jack located on the rear of the transmitter.
2. Connect the supplied 8V AC/DC power adaptor to an electrical wall outlet. The Power LED
then glows.
3. The transmitter can be connected to audio output jack of TV, Monitor, VCR, Radio, CD,
MP3/iPod, VCD or DVD players with the cables provided.
REMOTE CONTROL

Having finished the above simple wiring, Signal LED glows when the transmitter detects audio input
signal played from the source.
SPEAKER RECEIVERS
1. Remove the door of the battery compartment.
2. Insert 6 pieces of ‘AA’ size ALKALINE batteries (not included) into the battery compartment with
correct polarity under the speakers, then replace the door of battery compartment, or connect
the provided AC/DC 9V Adaptor to the DC input jack under the speakers, then plug it to the wall
AC outlet.

REMOTE CONTROL
1. Remove the door of the battery compartment.
2. Insert 2 x AAA 1.5V batteries (not included) into the compartment.

OPERATION
1. Turn on the audio source to which the transmitter is connected with. The Signal LED on
transmitter will light up.
2. Select a channel of the transmitter for best performance in your location.
3. Select the L/M/R (Left/Mono/Right) selector under the speakers, one to L (Left) and the other to
R (Right) for the best stereo reception. In case the audio device only provides Mono audio signal,
select to M (Mono) for the best mono reception.
4. Press the “POWER” button on the speaker to turn on the speaker. Press the “TUNE” button to
get the best tuning reception in the speakers. When the button is pressed, frequency tuning
starts automatically and it stops when a signal is detected.
5. Volume can be adjusted up from the speaker by pressing “ ” button or down by pressing the
button “ “, or by pressing “ + “ or “ – “ on the remote control, to the desired listening level.
6. Tuning
a) Keep a distance of 7 meters between speaker and transmitter, and then press the button
“ TUNE “ button for best tuning reception.
b). Once the frequency is jammed, select another channel on the transmitter, then press
“ TUNE “ button again.
7. Switching Off
a) For protection of the transmitter and power saving, the transmitter will cut off
automatically if there is no/weak operation input signal from audio source for 4 minutes. In
other words, if the signal comes back, the transmitter will work again automatically.
b) Press the “POWER” button to turn off the speaker and the LED light goes off.

NOTE :
You should now be able to place the speakers freely from room to room without disruption. If
disruption should occur (signal breaks up), press the “TUNE” button under the speakers to maximize
best reception.
If you hear interference from other components, switch the channel control of transmitter, and then
move the speakers to other free location. You can re-adjust the tuning control by moving it among
channels of the transmitter, then pressing “TUNE” button of the speakers for best reception.
When transmitting / receiving over long distances, the signal from the system will become weaker.
TROUBLE SHOOTING
NO SOUND
zEnsure the AC adaptor is fully inserted into the AC outlet and the power connection input on the
transmitter.
zEnsure the speaker is switch ON.
zSpeaker’s battery capacity is too low, replace with new batteries or connect the AC adaptors to
the speakers.
zEnsure the TV or audio component is ON.
zThe connected audio / video equipment is not playing. Start playing the equipment.
zThe volume of speaker is too low, adjust the volume to an appropriate level.
DISTORTED
zPress the “TUNE” button under the speakers until the frequency between the transmitter and
speakers are matched.
zChange the position of the channel selector on the transmitter. You must then press the
“TUNE” button on the speakers.
zBattery capacity is too low. Replace with the new battery.
zEnsure the volume level of speakers is adjusted properly.
zThe speaker is too far away from transmitter, move them closer.
zThe input level of the audio signal is too low. Turn up the volume of the audio source
equipment.

TECHNICAL SPECIFICATIONS
Transmission Mode : UHF stereo
Carrier Frequency : 900 MHz
Operation Voltage : Transmitter, AC/DC 8V 200mA Power Adaptor
Speaker, AC/DC 9V 1.2A Power Adaptor, or
6 X ‘AA’ size Alkaline Batteries (not included)
Remote Control, 2 x AAA battery (not included)
Frequency Response : 40Hz – 12KHz
Distortion : 1.5%
S/N Ratio : 65dB
Channel Separation : 30dB
Operation Distance : Up to 50 meters (open area)
Output Power : 2 x 4W (RMS)
WARNING:
1. Batteries (battery pack or batteries installed) shall not be exposed to excessive heat such
as sunshine, fire or the like.
2. This product shall not be exposed to dripping or splashing and that no objects filled with
liquids, such as vases, shall be placed on the product.
3. Where the mains plug is used as the disconnect device for the product, the disconnect
device shall remain readily operable.

FCC STATEMENT:
FCC Caution: Any changes or modifications not expressly approved by the party responsible
for compliance could void the user's authority to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
IC STATEMENT:
Any changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate this equipment。
This device complies with RSS 210 of Industry Canada.
"Operation is subject to the following two conditions: (1) this device may not cause interference,
and (2) this device must accept any interference, including interference that may cause
undesired operation of the device."
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil
nedoit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d'en compromettre le
fonctionnement.
"This Class B digital apparatus complies with Canadian ICES-003."
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
This device and its antenna(s) must not be co-located or operating in conjunction with any
other antenna or transmitter.
Cet appareil et son antenne (s) ne doit pas être co-localisés ou fonctionnant en conjonction
avec une autre antenne ou transmetteur.
FCC information to the user
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may
not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
--Reorient or relocate the receiving antenna.
--Increase the separation between the equipment and receiver.
--Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
--Consult the dealer or an experienced radio/TV technician for help.
Caution: changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment.