Appendix 01: No Sound - SoundCraft Signature 16 User Manual

16, 22, 22MTK User Manual
NO SOUND
A Troubleshooting Guide.
Is an input failing to appear at appearing at an output? The best approach it is to first make sure the
input is valid, and then work through the signal path to find out where the 'break' is... Check the exact
audio path of any signal by referring to the signal path diagrams in Chapter 4.
Check Solos
If a PFL light on an input channel is lit, or the AFL/PFL ACTIVE LED (below main audio meter) then a solo is active
and all channels except those that are 'soloed' will be muted. This will only affect the headphones output.
Clear all active Solos by pressing any illuminated Input Channel PFL buttons and any engaged Aux Master AFL buttons.
Check Input Channel Path To Solo Bus
The channel solo can be very useful here. If you Solo the channel it will send a post-EQ, pre-Mute signal to the Solo
bus and you should be able to see signal indicated on the main meters, or hear it in the headphones.
Things that might prevent the signal getting that far include a GAIN control set too low, phantom power not switched
on for a source that requires it (condenser microphone, active DI etc), or an active SUB RTN switch on a channel
where there is no USB input (MTK models only).
Check the Input Channel routing diagram (Section 4.1) and ensure the channel controls are set up correctly.
Check Input Channel Path To Routing
If the signal is present on the Solo bus with PFL engaged, the problem might be further down the input channel. It
could be simply that the Mute is active, or the fader is down - or there could be a problem with the routing.
For a signal to go to the Main Stereo Bus or to a Group Bus, the corresponding routing switch must be engaged
(MST, 1-2, or 3-4). Also, a pan or balance control can have a significant effect - if the signal is routed to Groups 1-2,
for example, and the pan control is full left (Group 1), you won't hear anything from the Group 2 bus.
Check Mute and fader status, and that the channel routing selections are correct.
Check Bus Masters
If you have routed signal to the Main Stereo bus or a Group bus, or you have turned up the channel's contribution
to an Aux bus, then the master controls for that bus must be set correctly. For example, if the signal is routed to the
Stereo master but the Stereo Master fader is down, you won't hear anything.
Check the controls on any Bus Masters that the signal is routed to.
No FX?
For an internal FX to be heard, there must be a source contribution from a valid input. Increase the level to the FX
bus using the Aux/FX control (Aux 4/FX for Signature 16, Aux 4/FX and Aux 5/FX for Signature 22 and 22MTK.
Also, the signal is return through the corresponding FX Return Channel. Troubleshoot this signal path as you would
do for a normal input channel.
The internal FX routing has three stages - send, processor, and return. All three must be set correctly for the FX to be heard.
APPENDIX 1: NO SOUND?
APPENDIX 1: NO SOUND?