Symphonic SD-VTA40X2 User manual

2

Safety Instructions
9.The power cordof the unitshould be unplugged
IMPORTANT
Please read safetyinstructions prior to setting up andoperating
the unit.
Safety Instructions
1.Do not removethe vacuum tubecover.
2.Do not touch withhands as oils fromskin will damage thevacuum tubes.
3.Do not touch thevacuum tube as itmaybe extremely hot.
4.The unit shouldbe kept awayfrom moisture andshould not beused around or
near water.
5.The unit should bewell situated so thatits location or positiondoes not interfere
with its properventilation. Items suchas bookcases orcabinets may impedethe
flow of air throughthe ventilation openings.
6.The unit should besituated away from heatsources such as radiators,heat registers,
stoves, or otherapparatus that productheat. Do notplace the unitnear open flame,
such as fireplaces orcandles.
7.The unit shouldbe connected toa power supplyas described inthe User's manual
or as marked onthe unit.
8.Power cords shouldbe routed sothat they arenot likely tobe stepped onor pinched
by items placed uponor against them.
from the outletduring lightning,
storms or whenthe unit isleft unused forlong periods oftime.
10.There is apossibility that dewwill form onthe surface ofthe vacuum tubewhen the
unit is movedfrom a coolto a warmplace. In thesecircumstances please waitat
least one hourto operate theunit to avoidleakage or ablowout of thevacuum tube.
11.The unit shouldbe serviced byqualified service personnelwhen:
a.The powersupply cord orplug has beendamaged;
or
b.Objects have fallen,or liquid has spilledinto the unit;
or
c.The unithas been exposedto water ormoisture;
or
d.The unitdoes not appearto operate normally
or exhibits amarked change inperformance;
or
e.The unithas been dropped.
The user should notattempt to service theunit beyond
those means described inthe User's manual.
Toensure the optimumperformance, please readthe manual carefully.
Keep it ina safe placefor future reference.
Install your unitin a cool,dry, cleanplace away from windows, heat
sources, as wellas too muchvibration, dust, moistureor cold.
Toprevent fire or electric shock, do not expose to rain or water.
Do not operatethe unit upsidedown, it mayoverheat possibly causing
damage.
Never open the cabinet.If a foreign objectdrops into the set,contact
your dealer.
Do not use forceon switches, knobs, orcords. When moving theset,
first turn offthe unit, then gently disconnect the power plug and the
cords connecting to otherequipment. Never pull thecord itself.
Toprevent damage, pullout the cablecord and removethe antenna
cord during lightning storms.
Disconnect theAC power plugfrom the walloutlet when theunit will
not be usedfor an extendedperiod of time.
Be sure toread the troubleshooting section on commonoperating
errors before concluding thatyour unit is faulty.
The lightning flashwith arrowhead,
within an equilateraltriangle, is
intended to alert the user tothe
presence of un-insulated
"dangerous voltage" withinthe
product's enclosure thatmay be
of sufficient magnitudeto constitute
a risk of electricshock.
The exclamation pointwith in
an equilateral triangleis
intended to alert theuser to
the presence ofimportant
operating and maintenance
(servicing) instructions in
the literature accompanying
the unit.
Toprevent the riskof electric
shock, do notremove cover
(or back). Refer servicingto
a qualified servicepersonnel.
3
CAUTION
RISK OF ELECTRIC SHOCK.
DO NOT OPEN

Index
3- Safety Instructions
4- Index
5- Specifications
6 - Package Contents
7 - Front / Back View of Main Unit
8 - Control Function of Main Unit
9 - Connections
10 - Troubleshooting
4

Specifications
5
Main Unit
Output Power RMS (10%THD ) 40W Per Channel
Frequency Response 10Hz~100KHz ± 1.5dB
Harmonic Distortion 0.2%
Signal-to-Noise Ratio 84dB
Input Impedance 100K
Output Impedance 4 , 8
Power Supply AC100V~120V 50/60Hz
AC220V~240V 50/60Hz
Dimensions: (W x H x D ) 380 x 178 x 317mm
Tube Type 6L6G x 4 ; 12AU7 x 4

Package Contents
Stereo Audio Cable
Main Unit
3.5mm-Plug
Stereo Audio Cable
User's Manual
Power cord
6

Front / Back / Top view of Main Unit
7

Main POWER button
Input select
VU Meter
Volume control button
Line input jack
Voltage selector (115/230V)
AC input jack
Speaker out jack (R)
Control Function of Main Unit
Press the POWER button to the "ON" or "OFF" position.
Volume display.
Select input sound source ( LINE1 , LINE2 or LINE3 ).
" + " button to increase the volume.
" - " button to decrease the volume.
Connect audio cable to DVD ,CD / Walkman / MP3 player,TV or
other audio device.
Before inserting the plug into the AC outlet, make sure to set the
voltage selector (115V or 230V) to the voltage that is appropriate
for your area.
Connect AC power cord to the unit AC input jack.
Connect speaker cable to speaker (Right).
8
Speaker out jack (L) Connect speaker cable to speaker (Left).

Walkman / MP3 player or other audio device
Speaker
CD Player or other audio device
Connections
9
TV / DVD player or other audio device
Speaker
abcde

Troubleshooting
No sound from
speaker system.
No power to system. Ensure power supplyis connected tolive power sourceand properly connected
to speaker.
No volume orlow volume. Turn the volume"+" knob on the volume control to increase the system volume level.
Input source islow. Increase the volumelevel on theaudio source device.
No power.Power
blue LED isnot on. Wall adapter isnot plugged intothe unit correctly. Check connection ofwall adapter.
Wall adapter isnot receiving AC power. Place wall adapter ina known powered outlet.Testoutlet with a lamp
or other device.
Remote control powerbutton is notdepressed. Press power buttonlocated at theremote control BlueLED will illuminate.
Crackling sound
from speakers.
Bad connection. Check connection ofthe stereo cable.
Make sure it isconnected to " line-out""audio-out"
or the headphonejack on youraudio source-and
NOT "speaker-out".
A problemwith your audio source. Unplug the stereocable form theaudio source. Thenplug it into the
headphone jack or analternate source.(e.g., CD player, Mp3 player)
Sound is distorted. Volume levelon speaker systemis set toohigh. Please to decreasethe volume.
Sound source isdistorted. WAVand MID filesare often ofpoor quality ;thereforedistortion and noiseare easily
noticed with high-poweredspeakers. Trya different audiosource such as a music CD.
Input select is notcorrect. Ensure input select isin LINE1 , LINE2or LINE3 input connect.
Power cord isnot plugged inor is notcompletely inserted. Firmly plug inthe power thepower cord.
Line input select isnot correct. Ensure Line inputselect is inLINE1 , LINE2or LINE3.
Symptom Possible problem Solution
Radio interference. Tooclose to aradio tower. Move your speakers to see if interference goes away.
10