AVSL 173.451 KB-Series - Manual (Page 4)

173.450UK, 173.451UK User Manual
Operation
Connect the IEC inlet on the KB-80 to the mains using the appropriate IEC lead, ensuring
correct voltage and current rating
If a microphone is to be used, connect this to channel 1 via the XLR connector or the L/MONO
jack input.
If no microphone is used, channel 1 can be employed as a keyboard input
Connect up to 3 keyboards via the line input jacks on channels 1 to 3
For stereo keyboards, connect the left and right outputs to the L/MONO and R jack inputs
For mono keyboards, just use the L/MONO jack inputs
If required, connect headphones to the PHONES output (6.3mm stereo jack)
On the KB-80, a playback or auxiliary line source maybe connected via the rear RCA inputs
The rear LINE OUT jacks may be used to connect the mix output to a PA system.
Set BASS, MIDDLE (KB-80) and TREBLE EQ controls to halfway (12 o’clock position)
With master VOLUME (KB-80) and channel volumes turned fully down, switch the power on
If a playback source is connected to the KB-80 RCA inputs, ensure it is set to “PLAY”
Gradually increase the master VOLUME until the required level is reached for AUX input.
Gradually increase channel LEVEL(s) whilst playing the keyboard(s) or using the microphone
Check levels until the required volumes are achieved
Adjust EQ controls to the desired amounts (BASS, MIDDLE and TREBLE frequencies)
If higher master VOLUME is required, it may be necessary to reduce the signal level fed to the
AUX input on the KB-80
After use, turn the master and channel volume controls fully down before powering off.
Troubleshooting
No output and no
Power light Check POWER switch is on and mains lead is connected properly
Check mains fuse hasn’t blown
Power LED is lit but no
Output
Check that Master VOLUME and Channel LEVEL controls are not
turned down fully
Check that headphones are not left plugged in
Change jack lead to check if faulty (also RCA lead for AUX input)
Check that all EQ controls are not turned fully down
Output too distorted
Check that high impedance line input is not fed via XLR
Reduce volume on keyboard
Reduce Channel LEVEL controls and Master VOLUME control
Reduce EQ controls if turned up above halfway
Output very quiet
Check output volume on keyboard(s) and increase if necessary
Ensure low impedance inputs (e.g. microphone) are not fed to
jack line inputs
Increase master VOLUME and/or channel LEVEL controls
Check that all EQ controls are not turned down
Errors and omissions excepted.
Copyright© 2012. AVSL Group Ltd.