Appendix; Troubleshooting - Yamaha MTX3 Owner's Manual

Appendix



Troubleshooting

The Yamaha Pro Audio website provides a FAQ (a list of frequently asked questions, with answers).
http://www.yamahaproaudio.com/
Symptom
The device does not turn on, or
the panel LEDs do not light up.
Can't exchange data between the
MTX3 and MTX Editor (MTX3 is
not shown in MTX Editor).
No audio input is present.
([INPUT SIGNAL] indicator does
not light)
No audio is output.
([OUTPUT SIGNAL] indicator
does not light)
The panel controls don't work.
Can't operate the DCP.
The DCP's LEDs are dim.
[YDIF] indicator does not light.
Can't play audio files from the SD
memory card.
SD memory card is not detected.
Preset does not switch at the time
specified by the scheduler.
The [ALERT] indicator is flashing.
Can't switch presets from a device
connected to the [GPI] connector.
Volume becomes unstable when
it is operated from a device con-
nected to the [GPI] connector.
Connect the power cord properly.
Make sure that the power switch is turned on.
If the power still does not turn on, contact your Yamaha dealer.
Is the NETWORK connector on the MTX3 properly connected to your computer?
Have you specified the correct UNIT ID using the [UNIT ID] rotary switch and DIP switches 1 and 2
on the rear panel? Could the UNIT ID be conflicting with another device?
Set the rear panel DIP switch 6 (IP SETTING) to "UNIT ID" so that the IP address will be automati-
cally assigned according to the UNIT ID.
Connect the cable properly.
Make sure that a signal from an external device is being input.
Set the gain of the internal head amplifier or external head amplifier to an appropriate level.
Could the output level be lowered?
In MTX Editor, could the channel's ON button be turned off?
Is the signal routing specified correctly?
Have the other settings in MTX Editor been made correctly?
Could rear panel DIP switch 5 (PANEL LOCK) be set to "LOCK"? Change this to "UNLOCK" to
defeat the panel lock function. If you are still unable to operate the device, contact your Yamaha
dealer.
Are you using an appropriate cable, and is the MTX3 correctly connected to the DCP?
Did you power-cycle the MTX3 after connecting the DCP? The DCP will be detected when the
power is turned on.
Did you assign the DCP's ID and parameters correctly in MTX Editor? Also, did you specify a DCP
library item in the "Preset" dialog box as the preset to be recalled?
Is termination turned on for the last-connected DCP?
Could nine or more DCP units be connected? A maximum of eight DCP units can be connected to
one MTX3.
Could the total cable length from the MTX3 to the last control panel be exceeding 200 meters?
Did you set the DCP's LED brightness appropriately in MTX Editor?
Did you use an appropriate cable to make proper YDIF connections between the MTX3 and other
devices in the MTX system? Also, is the power to the YDIF-connected devices turned on?
Is the SD memory card recognized correctly? Make sure that the front panel [SD/ACT] indicator is lit
or flashing.
In MTX Editor, have you made the correct settings for SD memory card playback and for the sched-
uler?
Are playable audio files saved in the specified folder?
Are you using an SD memory card type and format that is supported? Refer to the "Specifications"
page, and use a supported card.
Is the SD memory card inserted correctly? Turn off the power of the MTX3, re-insert the card, and
then turn the power on again. If the [SD/ACT] indicator does not light and the card is not detected, it
may be that the card is damaged.
The MTX3's clock is set by sending clock data from the computer via MTX Editor to the MTX3.
Make sure that the computer's clock is set correctly.
Have you made the correct scheduler settings in MTX Editor? If the [SCHEDULER] indicator is not
lit or flashing, it may be that settings were not made correctly in MTX Editor.
An error has occurred. The alert number is shown in the front panel [PRESET] display; refer to
"Alert list" on page 22 to determine the content of the error and take the appropriate action.
Is the GPI device connected correctly?
Have the correct GPI-related settings been made in MTX Editor?
Route the wiring to avoid picking up noise; for example, replace the cable with a shielded or shorter
cable.
Possible cause, and action
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MTX3 Owner's Manual