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MixMaster Troubleshooting Guide

No LEDs illuminate


• Is the POWER switched on?

• Is the correct mains voltage being used for your unit? If not, the fuse may blow, requiring the correct fuse to be refitted. (Click here to find the fuse rating for your unit.)

No output when using one of the LINE INPUTS


• Is the POWER switched on?

• Is the LEVEL set correctly?

• Is the correct input in use? XLR: +4dBu professional, Jack: -10dBV consumer. JACK INPUT OVERRIDES XLR INPUT.

The STEREO EXPANDER is not working


• Is the expander section’s IN switch engaged?

• Is the EXPANDER threshold set correctly? If set too low, the input level may not reach the threshold at which the expander activates. (See user manual)

The STEREO SPECTRAL COMPRESSOR is not working


• Is the compressor section’s IN switch engaged?

• Is the LEVEL set correctly? If set too low, the signal level may not be high enough to activate the compressor.

• Are the COMPRESSION controls set correctly? If threshold is too high, the input may not reach the level at which compression starts. (See user manual)

The STEREO EQUALISER is not working


• Is the EQ section’s IN switch engaged?

• Are the FREQUENCY controls set to frequencies that are present in the signal?

No word clock lock


• Is your external word clock source transmitting word clock?

• Is the sample frequency set to match that of the word clock-transmitting device?

• Is an external word clock cable needed and, if so, is it connected? (See clocking regulations in the GENERIC SETUP)

No output from the digital output option


• Is the sample frequency set correctly?

• Is the receiving device set to receive at the correct resolution (16- or 24-bit)?

• Is the receiving device set to external sync? (See DIGITAL in GENERIC SETUP)

• Is the receiving device Pro or Consumer?

• Is the Digital Output switch in the correct position? It must be switched in if using consumer (SPDIF) format.