If you are having problems with your SR770 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 Left Arrow (backspace) key down, turn the power back on. After two seconds release the Left Arrow (backspace) key. If this doesn't correct the problem the instrument will need to come back to SRS for service. Click here to get an RMA number.
2) I need to replace my disk drive with a USB drive
If you are still having trouble your SR770, it will need to come back to SRS for service. Click here to get an RMA number.