If you are having problems with your SG380 & SG390 Series you can call us at
If you wish to try and fix the problem yourself, the user manual may be useful, and the following troubleshooting guide may be helpful too.
1) Instrument is unresponsive to front-panel button presses
Try a power-up reset. Turn the power off, then while holding the BACKSPACE and the
If you are still having trouble with your SG380 & SG390 Series, it will need to come back to SRS for service. Click here to get an RMA number.