Vax M-9000 - Manual (Page 119)

119
20. TROUBLESHOOTING
Remedy
If this screw is loose, noise may be produced.
Ensure that the screw is tightened.
The unit is designed to digitize audio signals
with an AD converter and vary the input level
with a digital volume control.
Therefore, noise increases if the input or
output volume control is set to a level higher
than 0 dB while the AD converter input is kept
low.
The unit is designed to digitize audio signals
with an AD converter and vary the input level
with a digital volume control.
Therefore, when an extremely large input is
fed into the AD converter, the voice remains
distorted even if the volume is decreased.
If this screw is loose, phantom power is not
supplied. Ensure that the module mounting
screw is tightened.
If phantom power is set to OFF in D-001T
module input setting, phantom power is not
supplied. Set phantom power to ON in the
setting.
The D-001T module's phantom power supplies
+24 V.
If using a condenser microphone powered by
over +24 V, separately prepare phantom
power supply equipment recommended by the
equipment manufacturer.
Check the related setting items and set
contents.
Symptom
Noise generated.
Excessive noise.
Sound distorted.
Phantom power not
supplied.
Phantom power not
supplied.
Condenser microphone
does not operate
correctly.
Amplifier malfunctioned
(does not operated as
intended.)
Possible Cause
Module mounting screw not
securely tightened.
Incorrect module input
sensitivity setting.
Incorrect module input
sensitivity setting.
D-001T module mounting
screw not securely tightened.
Phantom power set to OFF
in D-001T module input
setting.
Condenser microphone of
the type powered by over
+24 V is used.
Incorrect item or parameter
setting.