CH M10 - Troubleshooting Common Issues; Troubleshooting: No Power; Troubleshooting: No Sound (General); Troubleshooting: Muted Output

5 Troubleshooting
Never try to reconnect an umbilical power cable or the mains power cable while your
M10 is not fully off. If any power cable gets disconnected by mistake while your M10 is
on, just let it safely automatically turn off. Do not try to interfere with the emergency
power down procedure of the device. Then wait about 5 minutes before plugging the
umbilical power cables back.
Error Action
No power Check that all four umbilicals connecting the audio and the power supply
units are rmly locked.
Check the two mains power cable of the power supply unit.
Check the power switch at the back of the power supply unit.
Check all four mains fuses on the back of the power supply unit.
No sound Check that your source is playing.
(general) Check that your M10 is turned-on and speakers are connected properly
according to the mode you want (stereo, mono, bi-amp, bridged).
Check that the preamplier’s volume setting is not too low.
Check that the correct input is selected on your preamplier.
Check that the correct input is selected on your M10 amplier.
Check that the correct amplier mode selected matches your setup
(stereo, mono, bi-amp, bridged).
No sound Your M10 is muted (symbol must be off for the unit to output signal).
(“ ” is displayed) Unmute using top front panel push button.
Your M10 does not properly Make sure the board is in the left-hand side slot (close to the Grounding
recognizes its sole module, not to the Control module), regardless of the channel it processes
input board (left or right input board). If it is no the case, turn the M10 off, unplug it
from the wall sockets and move the input board to its proper location.
Lost in the settings? Restore factory settings and start your setup again.
Software update fails Try Emergency Software Update procedure.
If it fails, download the latest M10 rmware from www.ch-precision.com,
prepare a software update image on the provided FAT32 formatted USB
stick and follow the Emergency Software Update procedure again.
USB ash drive for rmware Please try another brand of USB ash drive
update is not detected by M10 (e.g. Sandisk or the provided stick).
If the error cannot be corrected using the information from the above table, disconnect the unit from AC wall
socket and from the rest of your system and contact your authorized dealer for assistance.
M10 User Manual 25