Avalon VT-737SP, Руководство по эксплуатации

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8.0 Trouble Shooting
If you experience any problems with your
Vt-737sp, please make sure to first isolate the
problem to your Vt-737sp. In many cases the
problem can be a bad cable instrument, or
another piece of equipment in the signal path.
It is easiest to isolate the problem by removing
as many pieces of extraneous gear in the
signal path as possible. If you believe that your
Vt-737sp has problem, please set up the
following test system:
1. Plug your input source (microphone, instru-
ment or line input) into Vt-737sp; make sure to
check your cable.
2. Output of Vt-737sp directly to powered
monitors or monitor system. Use the OUTPUT
control on the Vt-737sp to adjust volume and
check this cable as well.
Once you have isolated the problem to the
Vt-737sp please check the following list of
problems and corresponding suggested solu-
tions.
Trouble Shooting
Page 42 Avalon Vt-737sp Operation Manual
Problem Cause Solution
No power Power cable on back of chassis not
securely plugged in
Check cable
No power Fuse blown due to power surge or
improper AC voltage setting
Replace fuse and check AC voltage
setting (page 13)
No sound XLR cable not in correct input on
back of unit (Microphone, Line)
Check that input cable is plugged into
intended input
No sound +48v not on for a microphone that
requires phantom power
Press in +48v to supply microphone
with phantom power
Distorted sound Microphone or input source
overloading
Try a different microphone or input source;
adjust input preamp gain
Distorted sound Vt-737sp may be overheating Make sure Vt-737sp has proper
ventalation (page 14)
Hum or
buzzing noise
Bad cables or ground loop Check all cables and grounding system;
lift ground on Vt-737sp (page 13)
Overloading
recording device
Recording device is -10dB device,
Vt-737sp is +4dB device
Turn down output control on Vt-737sp
to adjust to usable recording level
No sound Bad cable Check cables
Lights dim /
no sound
Improper AC voltage setting Check AC voltage setting (page 13)
No sound Input selector set in wrong position Make sure input selector switch is set to
the physical input that you are using (Mic,
Instrument, Line)