Yamaha MGP24X Owner's Manual - Page 40

Troubleshooting  Power doesn't come on.  No sound.  No sound from the STEREO OUT jacks  No sound from the AUX1 to AUX6 jacks  No sound from the MONITOR OUT and/or PHONES jacks  No sound from the CH29/ 30, CH31/32 {CH21/22, CH23/24} jacks  Sound is faint, distorted, or noisy.  No effect is applied.  I want spoken words to be heard more clearly.  I want to output a monitor signal for the mixer through speakers.  Cannot record to a USB device  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 knobs, channel faders, STEREO master fader and GROUP faders set to appropriate levels?  Are the bus assign switch and switches in the USB IN section and in the iPod IN section set properly?  Are the ON switch and ST switch of the channels you are using turned ON?  Is the ON switch of the STEREO master turned on?  Are the respective SEND MASTER knob, AUX1 to AUX6 knobs, FX1 and FX2 knobs of each channel set to appropriate levels?  Are the PFL switches for the channels that you are not using turned on? Make sure to turn off the PFL switch.  Is the AFL switch of the bus channel you want to monitor turned on?  Is the input select switch set to USB IN/iPod IN ( )? Make sure to set the switch to ANA- LOG ( ).  Are the channel GAIN knobs, channel faders, STEREO master fader and GROUP 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 FX1, FX2 knobs, FX RTN fader, and COMP knob 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 INPUT A 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 CH24 {CH16} or the GROUP 1 bus, the sound becomes faint.  Check that the FX1 and FX2 knobs on each channel are adjusted correctly.  Check whether the ON button of the FX1 RTN and/or FX2 RTN channel is turned on.  Be sure that Knob 2, and the FX1 RTN and/or FX2 RTN faders are correctly adjusted.  Check that the switch for the desired bus in the FX1 RTN and/or FX2 RTN bus assign switches is turned on.  When an effects processing unit is connected to the SEND(AUX1 to AUX6) jacks, are the AUX1 to AUX6 knobs on the SEND MASTER set to appropriate levels?  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 knob.  Is the USB device write-protected?  Does the USB device have sufficient capacity to save the data?  Is the USB device formatted in FAT32 format?  The transmission speed of the USB device might be too slow to record data. If the recording format is WAV or MP3:320k, a high transmission speed is required. Change the recording to a format with a high compression rate: MP3:128k, MP3:192k, or MP3:256k.  If the memory is fragmented significantly, try running a defragmentation program on the computer. 40 MGP32X/MGP24X Owner's Manual