Yamaha MGP16X Owner's Manual - Page 27

Troubleshooting  Power doesn't come on.  No sound.  Sound is faint, distorted, or noisy.  No effect is applied.  The FX1/FX2 ON buttons are not locked.  I want spoken words to be heard more clearly.  I want to output a monitor signal for the mixer through speakers.  The level meter doesn't show the output signal level.  iPod/iPhone signal is not output.  The supported iPod/iPhone is not recognized.  When a stereo signal is input, the left and right volume is different.  The sound level is inconsis- tent, or there is an unnatural "pumping" in the sound.  The Leveler is not enabled.  Is an independent power-supply unit such as a power generator, or a power strip with switch plugged into the mixer? Make sure that the power is turned on.  Are microphones, external devices, and speakers connected correctly?  Is a Y-shaped cable used to connect the INSERT connector or an external device?  Are your cables connected properly, or are they shorted or faulty?  Are the channel GAIN controls, channel faders, STEREO master fader and GROUP 1-2/3-4 faders set to appropriate levels?  Are the bus assign switch and 2TR IN switch set properly?  (When using STEREO OUT jacks) Are the ON switch and ST switch of the channels you are using turned ON?  (When using STEREO OUT jacks) Is the ON switch of the STEREO master turned on?  (When using AUX 1/2 and FX 1/2 jacks) Are the respective SEND MASTER control, AUX 1/2 and FX 1/2 controls of each channel set to appropriate levels?  (When using MONITOR OUT jacks ) Are the PFL switches for the channels that you are not using turned on? Make sure to turn off the PFL switch.  [For signals that are input to the 2TR IN and CH15/16 (CH11/12) jacks] Is the routing assign switch set to USB ( )? Make sure to set the switch to ANALOG ( ).  Are the channel GAIN controls, channel faders, STEREO master fader and GROUP 1-2/3-4 faders set to appropriate levels?  Is the 26dB switch turned on? Make sure to turn off the switch when a low-level source, such as a microphone, is input.  Is the output signal from the connected device set to an appropriate level?  Are you applying the effects and compressor at appropriate levels? You may have to lower the FX (1, 2) control, FX RTN fader, and COMP control levels.  Are two different instruments connected to the XLR-type and phone jacks, or to the phone and RCA pin jacks on one channel? Make sure to connect to only one of these jacks on each channel.  Are microphones connected to the MIC input jacks or MIC/LINE input jacks ?  If you are using condenser microphones, is the +48V switch turned ON?  If you are connecting a device which has a specified output level of +4dBu, turn on the 26dB (PAD) switch of the mono channels or use stereo channels.  (Stereo channel) Is the DUCKER switch turned on? When a signal is constantly input to CH4 (MGP12X)/CH8 (MGP16X), the sound becomes faint.  Check that the EFFECT knob on each channel is correctly adjusted.  Check whether the ON button of FX1/FX2 is turned on or off.  Be sure that the PARAMETER control and FX RTN fader are correctly adjusted.  Check that the switch for the desired bus in the FX1/FX2 RTN bus assign switches is turned on.  When an effect device is connected to the FX1 or FX2 jack, is the FX1 or FX2 control on the SEND MASTER set to appropriate levels?  The FX1/FX2 ON buttons are of a type that do not lock.  Make sure that the switch is turned ON.  Are the equalizers (HIGH, MID, and LOW knobs) on each channel adjusted appropriately?  Connect a powered speaker to the MONITOR OUT jack. Make sure to adjust the level of output signal from the MONITOR OUT jack with the MONITOR/ PHONES control.  Are the PFL switches for the channels you are not using turned on? Make sure to turn off the PFL switch.  Is the USB cable that came with Pod/iPhone properly connected to the mixer?  Is the routing assign switch set to USB ( )?  Is the LED indicator turned off? The mixer has not recognized your iPod/iPhone. Check which iPod/iPhone models are supported.  If your iPod/iPhone has not been charged, it may take some time to be recognized by the mixer. Please wait.  Is the pan control set to the center position? If it is located in the center, try swapping the connections. If the lesser/greater volume signals are also switched, check the connected device(s).  Is the same type of cable used for the right and left signals? A cable with resistance lowers the volume.  Are you applying the compressor at an appropriate level? You might have to lower the COMP control levels.  Is the GAIN control on the stereo channels adjusted appropriately? The Leveler may not be enabled if you increase the gain too much. * If any specific problem should persist, please contact your Yamaha dealer. MGP16X/MGP12X Owner's Manual 27