Dolby Laboratories DP572 - Manual (Page 23)

Dolby E Multichannel Distribution System User Manual Introduction
1-11
Fault, Remote, PCM Dly, Error, and VRef
Table 1-1 LEDs common to the DP571 and DP572
TC and Main
Table 1-2 LEDs unique to the DP571 and DP572
Input/Output Channel Activity
The DP571 Input Channel Activity LEDs display the number of channels in the currently
selected program configuration.
The DP572 Output Channel Activity LEDs display the number of active output channels.
Name Function
Fault
Red: Hardware related fault condition
Off: No fault condition
Remote
Green: Remote mode enabled with no communication errors
Red:
Remote mode enabled but communication error detected
Off: Remote mode not enabled
PCM Delay
Green: Valid PCM signal
Yellow: Non-48 kHz signal
Off:
No PCM signal
Error
Red: Input(s) not valid for current settings
Off: No error condition
VRef
Green: Lock with a valid analog composite video signal
Red:
Lock not achieved
Yellow: Frame rate of Vref unequal to frame rate of Dolby E Main
Input (DP572) or Main Output (DP571)
Name Function
TC (DP571)
Green: Valid time code signal
Yellow: Non-29.97 Hz signal
Off:
No TC signal detected
Main (DP572)
Green: Dolby E or PCM signal
Red:
No input signal
Yellow: Non-48 kHz input or
AES3 error condition