Troubleshooting - Yamaha TX4n Reference Manual

Troubleshooting

Symptom
Power will not turn on, display
will not light
No sound from the speaker
Noise from the speaker
Sound that appears to be pro-
cessed by an effect (phaser) is
output from the speaker
An alert message is displayed
Panel operations are not
accepted
A scene can be saved but not
recalled
Library data can be recalled,
but not saved
All scene data saved in the
TXn has disappeared
Can't use Amp Editor to moni-
tor or control the TXn
The LCD is not backlit.
Possible causes
The power cable is not con-
nected properly.
The POWER switch is not turned
on.
The cable is not connected prop-
erly.
The gain or attenuator setting
has lowered the level.
The [MUTE] button is on.
The protection circuit has oper-
ated, muting the output.
In the SIGNAL PATH screen, the
input channels of the slot are
unassigned, their level is low-
ered, or they are muted.
The word clock from the slot
input is not synchronized with the
master clock.
Analog input level is exceeding
the input sensitivity setting.
Phase cancellation is occurring
because an analog input signal
and digital input signal from the
same sound source but differing
latencies are being mixed via the
4x4 Matrix Mixer.
An amplifier malfunction or other
alert event related to the ampli-
fier audio has occurred.
The unit is locked.
Scene Recall is set to Disable.
You cannot save library data from
the TXn front panel.
The power was turned off while
the TXn's data was being saved.
The internal battery has run
down.
A cable is disconnected or bro-
ken.
The unit is offline.
The Device ID or IP address is
not set correctly.
"LCD Backlight" is set to "Auto
OFF."
Response
Connect the power cable properly.
Turn the POWER switch on.
Make the correct connections to the audio input jack and the
speaker output jack.
Gain is adjusted by the MENU screen ➝ General ➝ Sensitivity/
Amp Gain. Attenuator is adjusted by turning the encoder in the
HOME screen.
If the front panel [MUTE] indicator is on, hold down the [MUTE]
button for one second or longer to cancel muting.
If the amplifier has overheated, clean the filter elements and
improve the ventilation around the amplifier. If the power supply
has malfunctioned, contact your Yamaha dealer.
Check the parameters for each component in the SIGNAL PATH
screen, such as Slot Input Router, Input On/Off, 4x4 Matrix
Mixer, and Mute On/Off.
Select the word clock from the slot as the master clock, or turn
Auto Scan Mode on.
Adjust MENU screen ➝ General ➝ Sensitivity/Amp Gain setting
according to the input level.
If you're using redundant connections, set the MENU screen ➝
General ➝ Input Redundancy ➝ Mode setting to Backup. Alter-
natively, change the settings of the 4x4 Matrix Mixer etc. to turn
off one of the signals.
For details on the meaning of each alert message and the
appropriate measures to take, refer to the Amp Editor Owner's
Manual.
Refer to the Front Panel Operation setting
Set the UTILITY screen ➝ Scene Setup ➝ Scene Recall setting
to Enable.
Save the library data from Amp Editor.
If you saved the project in Amp Editor, synchronize from Amp
Editor to the TXn.
Contact your Yamaha dealer to have the battery replaced.
Make sure that the Ethernet cable is correctly connected, and
that it is not broken.
In the main panel window, click the [OFFLINE] button to switch it
to [ONLINE].
Re-do the setup as described in the Amp Editor Owner's Man-
ual.
Press any button on the panel to turn the backlight on.The LCD
backlight will turn off if you do not operate the unit for more than
10 seconds.
To keep the LCD backlit all the time, access the Utility screen,
select [LCD Setup], then set [Backlight] to "ON."
Appendix
(page 23).
TX6n/5n/4n Reference Manual
57