Specifications; Troubleshooting - Adastra RM1202 User Manual

Rackmount 2-zone mixer-amplifier
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Specifications

Power supply
Output power
Audio source
Bluetooth version
Inputs
Input impedance
Input sensitivity
Zone outputs: line
Zone outputs: speaker
Zone controls
Phantom power
Frequency response
THD
SNR
Dimensions
Weight

Troubleshooting

No power LED on control panel
Power LED is on but no other LEDs and no
output
Power light and zone indicator LEDs
lighting but no output
LCD display on audio player is not lit
No output from audio player
No playback via Bluetooth
USB/SD player will not play audio from
media
Output is very loud or distorted
Output is working but at very low level
No microphone output
Feedback from microphone
Amplifier overheating
Disposal: The "Crossed Wheelie Bin" symbol on the product means that the product is classed as Electrical or
Electronic equipment and should not be disposed with other household or commercial waste at the end of its useful life.
The goods must be disposed of according to your local council guidelines.
110-230Vac, 50/60Hz (IEC)
2 x 120Wrms
USB/SD/FM/BT audio player
2.0
1 x mic (XLR), 2 x mic/line (6.3mm jack), 2 x line (twin RCA)
1kΩ (mic/line)
-11dB (line), -46dB (mic)
2 x RCA
2 x terminal outputs 100V/8 ohms/4 ohms/com
Bass, Treble, Master volume
+20V switchable to Mic.1 XLR
100Hz - 20kHz
<0.76% @ 1kHz
84dB (line), 82dB (mic)
433 x 88 x 320mm
11.24kg
Ensure IEC lead is in good condition and connected properly
Ensure that the voltage selector is switched to the correct value for the supply
Ensure POWER switch is on and check mains inlet fuse
Check input signals and condition of input connection leads
Check that the selected zone output is assigned on the active input channel
Ensure that Zone Master, Mic, Line or media player volume controls are turned up
Check speaker output terminals are connected correctly
Check speakers are working (test on another amp if available)
If main power is on, press and hold the Mute button until the display is lit
Ensure that Mute function is off and volume is not set too low (press and hold "˄")
Check that Mic.1 priority is not overriding playback
Ensure that the sending device is paired and connected as audio to the correct device
Check the playback status and volume setting of sending device
Press Play/Pause button to ensure track is not paused
Press the Source button to ensure that the required device is selected
Check memory device is connected properly (remove and re-insert)
Check file types – standard compressed digital audio files are required
Check memory device works on a PC or Mac for standard playback
Check level of input signal is not too high
Reduce level control for Mic, Line or media player input
Reduce any boost to Bass or Treble and reduce Master volume control if needed
Check input audio source level is not too low
Increase Master volume and input channel controls and remove any Bass or Treble cut
Check for quiet recording of media files on USB/SD/BT devices
Check Mic.1 priority is not unintentionally suppressing other channels
Check phantom power is enabled if using condenser microphones
Face microphone away from speakers
Turn down Mic level control
Ensure cooling vents are clear from debris and dust
Check that 4Ω or 8Ω speakers are not connected to 100V terminals
Ensure total 100V speaker wattage is lower than the max rating for any zone
Ensure that 100V and 8Ω speakers are not connected simultaneously
Ensure that total load connected to 4Ω or 8Ω output is not less than stated
Errors and omissions excepted.
Copyright© 2018. AVSL Group Ltd.
953.163UK User Manual

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