Quest Engineering QTA1120P User Manual - Trouble Shooting
QTA-
1120P/1240P
User Manual
User Manual
Q-Tech Commercial Series
QTA-1120P/1240P
6
Trouble Shooting
If the amplifier fails to work as required,
please check the following:
No Power, No Lights
Make sure amplifier power switch is on.
•
Make sure mains power switch is on at
•
the wall.
Check the mains and DC fuse.
•
Replace with only the correct type and
•
rating.
Distorted Output
Check that the speaker type is correct for
•
the output that you are using (ie. 4-16
Ω
, or
100V line).
Check for any short circuits on the speaker
•
line.
Very Low Output Volume
Make sure that the speaker line is not
•
shorted.
Check speaker types and ratings.
•
Check that the parallel/mono switch is
•
correctly set.
Continually Blows Fuses
Make sure that the speaker line is not
•
shorted.
Check speaker types, ratings and if on
•
correct output.
Amplifier Keeps on Cutting In & Out
Make sure that there is adequate
•
ventilation around the amplifier.
Check the vent slots on the front are not
•
covered or blocked and the fan on the rear
is functioning correctly.
Check also speaker types, ratings and for
•
any short circuits on the speaker line.
Specifications
Type
Booster Amplifier
Model
QTA-1120P QTA-1240P
Output Power (RMS):
120W
240W
Power
Supply
Mains
Voltage
AC 115V or 230V
50/60Hz
Battery
Voltage
DC 24V
Total Harmonic Distortion
rated power
Sensitivity
1V, 100mV @ 10K ohm
Outputs
8
Ω
, 70V, 100V
Signal to Noise Ratio4
86 dB
Indicator
Power On, Level
AC Power Consumption
320W
640W
DC Power Consumption
8A
15A
Dimensions (mm)
88(H) x 425(W) x 305(D)
Weight
8.2 Kgs
10.6Kgs
Mounting options
Desktop or 19” rack