Troubleshooting – ClearOne MU5066 User Manual
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TROUBLESHOOTING
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Upon First Power Up, the keypad does nothing and there is no backlight on the LCD window on
the keypad:
If this happens, the polarity may be incorrect for the power connection from the ADC to the keypad.
You’ll be able to hear the relay clicking on the ADC, which means that 1 of the keypads is connected
backwards. To remedy this:
Step 1: Turn OFF the power on the Audio Distribution Center
Step 2: Check all of the 2-pin Phoenix connectors on the ADC and the keypad for the correct polarity,
paying attention to the silkscreen on the back of the ADC and on the PCB board of the keypad.
Step 3: Re-connect the 2-pin Phoenix (power) connectors on the ADC and the keypad(s).
Step 4: Turn the ADC Power ON.
I can’t learn the IR Codes on the MU5066 keypad:
There could be several things to check for.
First, check to make sure that the IR Emitter output connection is using the port with the same number as
the source connected to the Audio Distribution Center. For example, a source connected by RCA analog
to “Audio Input 1” on the ADC should have the IR Emitter running from “IR Out 1” on the ADC.
If that’s ok, then consult the owner’s manual for the source equipment to double check that the IR codes
are transmitting at the correct frequency. The default IR setting for the Musica system is 38 kHz,
however if the source connected to the input takes IR codes that are transmitting at 56 kHz, you will need
to change the IR FREQ setting for that source input from the Menu on the MU5066 keypad (see the IR
section of the Menu).
Some source manufacturer’s remote controls transmits IR codes in reverse polarity. Try learning
the IR codes to the keypad by pointing the remote control at the keypad once to learn the code,
then point it away and press the same button again, then point it back at the keypad to verify the
IR code learned.