Yamaha M7CL M7cl V1 Owner's Manual - Page 264
Troubleshooting, Not enough headroom, especially
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Troubleshooting Troubleshooting Power does not turn on, panel LEDs and the LCD display do not light ❍ Is the M7CL's POWER switch turned on? ❍ If the power still does not turn on, contact your Yamaha dealer. Sound is not input ❍ Is the optional I/O card installed correctly? (→ p. 42) ❍ Is a signal being input from the external device? ❍ Is the input port patched to an input channel? (→ p. 98) ❍ Is the GAIN of the internal head amp or external head amp set to an appropriate level? (→ p. 44, 55) ❍ Is the EQ attenuator raised? (→ p. 105) ❍ Could insert be turned on even though it has not been specified correctly? (→ p. 100) ❍ Is the [ON] key indicator of the input channel lit? ❍ Is the fader of the input channel raised? ❍ Is the DCA fader assigned to that channel raised? Could MUTE be turned on? Sound is not output ❍ Is the optional I/O card installed correctly? (→ p. 42) ❍ Is the [ON] key indicator of the STEREO channel lit? ❍ Is an output port patched to the output channel? (→ p. 95) ❍ Could LCR be on, and the CSR value be set to 1.0? (→ p. 57) Sound is not output from headphones or the MONITOR OUT jacks ❍ Is the [PHONES] knob or [LEVEL] knob set to an appropriate volume? Sound is not loud enough ❍ Is the GAIN of the internal head amp or external head amp set to an appropriate level? (→ p. 44, 55) ❍ Is the fader of the input channel raised? ❍ Could the EQ gain be set to an extremely low setting? (→ p. 105) ❍ Could the GATE/COMP threshold or ratio be set to an extreme setting? (→ p. 108) ❍ Is the EQ attenuator raised? (→ p. 105) ❍ Is the fader of the output channel raised? ❍ Try using the various screens of the METER function to check the levels. (→ p. 153) ❍ Is the DCA fader assigned to that channel raised? Sound is distorted ❍ Is the word clock set correctly? (→ p. 208) ❍ Is the GAIN of the internal head amp or external head amp set to an appropriate level? (→ p. 44, 55) ❍ Could the fader of the input channel be raised too high? ❍ Could the fader of the STEREO channel be raised too high? ❍ Could the EQ gain be set to an extremely high setting? (→ p. 105) Sound is output even though it is not ❍ Could you have assigned an input channel to direct out? (→ p. 102) patched to an output channel ❍ Could you have assigned an output channel as the insert out? (→ p. 100) The volume of a specific channel rises and falls ❍ Could GATE/COMP be set to ducking? (→ p. 108) Operating a fader does not control the level as you expect ❍ Is SENDS ON FADER selected and INPUT TO MIX FADER active in the panel? Only the sound of a specific channel is heard from the MONITOR OUT or PHONES jack ❍ Could a [CUE] key be on? Noise occurs from an externally connected recorder or other device ❍ Is the word clock set correctly? (→ p. 208) ❍ Could the input signal be unsynchronized? ❍ Could oscillator or talkback be turned on? (→ p. 149, 151) High frequency range is attenuated ❍ Could emphasis be applied? This problem will occur if the input signal status does not match the emphasis data. (→ p. 208) ❍ Could EQ be applied? (→ p. 105) An input signal is being input, but there's no monitor output ❍ Is the dimmer applied? ❍ Is the MONITOR C assigned even though its output port has not been connected to external device. Not enough headroom, especially when EQ boost is applied ❍ Use the EQ attenuator function to lower the level. (→ p. 105) Signal is delayed ❍ Check whether the delay setting for each channel is set correctly. (→ p. 95) Turning a MIX encoder does not change the send level to the MIX bus ❍ Is the [MIX SEND] key turned on? ❍ Is the MIX [ON] key turned on? ❍ Is the MIX bus set to VARI type? (→ p. 212) ❍ If the send point is set to POST, could the fader have been lowered? Can't save scene memory or library data ❍ Are you attempting to save the data to a read-only scene/library or a protected scene? (→ p. 125) Can't save to USB storage device ❍ Is the USB storage device protected? ❍ Does the USB storage device have enough free capacity to save the data? ❍ When formatting the USB storage device, format it in FAT32 or FAT16 format. Can't transmit/receive MIDI data ❍ Is the MIDI PORT selected correctly? (→ p. 182) ❍ Are the mode and channel selected correctly on the transmitting and receiving devices? (→ p. 182) ❍ Has an event been assigned for the program change? (→ p. 184) When you recall a scene, some ❍ Could that channel or parameter be set to Recall Safe? Could Focus be turned off in the scene you channels/parameters are not updated recalled? Could user level restrictions have been specified? (→ p. 135, 136, 196) You turn on a CUE button in the EFFECT PARAM screen, but it is automatically ❍ This is defeated automatically when you switch screens in the display. (→ p. 171) defeated 264 M7CL Owner's Manual