Grass Valley K2 Summit 3G v.9.0 - Manual (Page 36)

Power supply indicators
Each power supply has LEDs that indicates status.
OK ~AC Fault
Interpret the power supply LEDs as follows:
Status Condition LED state LED
The power supply is operating normally. Green On OK
There is a power supply fault. Yellow On Fault
The electrical current available to the power
supply meets power supply requirements. Input
> 85 VAC. Green On ~AC
Another indicator of power supply operation is the audible fan noise. If a power cable is connected
to either power supply, the fan should stay on continuously on both power supplies. This is the case
even if the K2 Summit 3G system is shut down or restarting via the standby switch or the Windows
operating system.
The Service LED on the front of the K2 Summit 3G system also indicates power supply status.
If the power source and the power cord are OK yet there is still a power supply problem, the status
lights on the power supply indicate the problem.
Related Topics
Service LED on page 34
Power supply problems on page 81
Reference indicator
There is a small hole in the carrier module next to the “REF. LOOP THROUGH” BNC connectors.
Reference
Through this hole a LED is visible. When the LED is lit, the reference signal is present and locked.
36 K2 Summit 3G Service Manual 14 November 2012
Product description