Module 4

Troubleshooting

Most audio problems have simple causes. Start with the basics before investigating further.

4.1 Check the Basics First

⚠️ The Golden Rule

Before investigating complex causes, always check the two most common sources of audio problems: Is it powered on? and Is it muted? The vast majority of issues encountered during a service are caused by one of these two things.

4.1.1 Is it ON?

	Check	How to Check
	Is the Stage Rack (Tio1608-D) powered on?	Check the power LED on the front panel.
	Is the Netgear M4250 switch powered on?	Check the power LED. Located in the Stage Rack.
	Is the TF3 console powered on?	Check the power LED on the top panel.
	Are the FOH speakers powered on?	Check the power switch on the rear of each speaker.
	Are the Shure SLX-D receivers powered on?	Check the front panel display.
	Are the PSM300 IEM transmitters powered on?	Check the front panel display.
	Are the wireless transmitter/bodypack batteries charged?	Check battery indicator on the transmitter or receiver.

4.1.2 Is it MUTED?

	Check	How to Check
	Is the individual channel muted?	Check the mute button on the channel strip — it should not be lit.
	Is the DCA group muted?	Check the relevant DCA mute button (DRUMS, GUITARS, KEYS, VOCALS, BAND, SPEECH, MEDIA, or FX).
	Is the ST Master muted?	Check the ST Master mute button at the far right of the console.
	Is the channel fader pulled down?	The fader should be at unity (0 dB) or above for the channel to be audible.
	Is the FOH speaker output muted?	Check the output routing on the TF3 — the OMNI/MATRIX outputs feeding the FOH speakers should not be muted.
	Is the IEM transmitter muted?	Check the PSM300 transmitter front panel — the RF output should not be muted.

4.2 Common Problems

Click any problem to see possible causes and the recommended solution.

4.3 Network & Connectivity

Dante Network

If the Tio1608-D is not visible on the TF3: check the M4250 switch is powered on, verify the D-PRI cable is connected at both ends, and allow 30 seconds for Dante to initialise before refreshing.

Wi-Fi Control

TF StageMix: connect to TSC-MIX-FOH. MonitorMix: connect to TSC-TF3-IEM. If apps cannot connect, verify the Teltonika router is powered on and the correct network is selected on the device.