User`s guide
The System
System Power
Revision D.0 1-5
ssn February 10, 1999 C:\WINNT\Profiles\dapowell\Desktop\D.0 Books\CD FILES SONOS 
D.0\System Basics D.0\Frame Files\1CH.FM add.2
System Power
All systems have a separate circuit-breaker switch on the back panel, near the 
power-cord connection. This switch has on   and off   settings. If the 
SONOS system does not power up when the main power switch is turned on, this 
circuit-breaker may have tripped or may be set to off. If this happens, turn the 
circuit breaker completely off and then back on. Then turn system power on 
using the main power switch.
Systems without PCs
The main power switch immediately turns the system on  and off  .
NOTE When the system is turned off, standby power remains on.
Systems with PCs
NOTE Systems with PCs are equipped with circuitry to properly shut down the PC. 
Following the procedure described below helps to increase the reliability of the 
system.
• Turning the main power switch on  turns on both the SONOS system 
and the PC.
• Turning the main power switch off 
 and leaving it off for approximately 
three seconds starts the controlled PC-shutdown procedure:
1 An onscreen message displays: 
Please wait while the system shuts down.
2 The SONOS system then begins to shut down. It disables all controls and 
suspends scanning and other processing.










