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Troubleshooting - Symphonic SD-VTA40X2 User Manual

Vacuum tube amplifier

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Troubleshooting

Symptom
No power. Power
blue LED is not on.
No sound from
speaker system.
Crackling sound
from speakers.
Sound is distorted.
Radio interference.
10
Possible problem
Power cord is not plugged in or is not completely inserted.
Wall adapter is not plugged into the unit correctly.
Wall adapter is not receiving AC power.
Remote control power button is not depressed.
No power to system.
No volume or low volume.
Input source is low.
Input select is not correct.
Line input select is not correct.
Bad connection.
A problem with your audio source.
Volume level on speaker system is set too high.
Sound source is distorted.
Too close to a radio tower.
Solution
Firmly plug in the power the power cord.
Check connection of wall adapter.
Place wall adapter in a known powered outlet. Test outlet with a lamp
or other device.
Press power button located at the remote control Blue LED will illuminate.
Ensure power supply is connected to live power source and properly connected
to speaker.
Turn the volume "+" knob on the volume control to increase the system volume level.
Increase the volume level on the audio source device.
Ensure input select is in LINE1 , LINE2 or LINE3 input connect.
Ensure Line input select is in LINE1 , LINE2 or LINE3.
Check connection of the stereo cable.
Make sure it is connected to " line-out" "audio-out"
or the headphone jack on your audio source-and
NOT "speaker-out".
Unplug the stereo cable form the audio source. Then plug it into the
headphone jack or an alternate source.(e.g., CD player, Mp3 player)
Please to decrease the volume.
WAV and MID files are often of poor quality ;therefore distortion and noise are easily
noticed with high-powered speakers. Try a different audio source such as a music CD.
Move your speakers to see if interference goes away.

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