Grass Valley 8921DAC - Manual (Page 13)

8921DAC Instruction Manual 13
Power Up
Operation Indicator LEDs
Refer to Figure 5 on page 12 and Table 2 for the name and meaning of each
of the board edge operating indicators on the module circuit board.
Table 2. Board Edge LED Names and Meaning
LED Indication Condition
FAULT
(red)
Off Normal operation.
On continuously Module has detected an internal fault. (Refer to Service on page 43 .)
Long Flash
User configuration problems. Input missing or not locked. Processor failed to load/configure or diag-
nostics failed on one or more devices.
COMM
(yellow)
Off No activity on frame communication bus.
3 Quick Pulses Locate Module command received by the module from a remote control system.
Short flash Activity present on the frame communication bus.
CONFIG
(yellow)
Off Module is in normal operating mode.
On continuously Module is initializing, changing operating modes or programming hardware.
3 Quick Pulses Locate Module command received by the module from a remote control system.
PWR
(green)
Off No power to module or module’s DC/DC converter failed.
On continuously Normal operation, module is powered.
ERR AES1
(red)
On No error detected for AES 1 A/B input. SRC A/B ready.
Off
One of the following errors detected for AES 1 A/B input: CRC, Input not present, PLL AES receiver not
locked, Validity Bit set, Non-audio bit set, excessive parity error.
ERR AES2
(red)
On No error detected for AES 2 C/D input. SRC C/D ready.
Off
One of the following errors detected for AES 2 C/D input: CRC, Input not present, PLL AES receiver not
locked, Validity Bit set, Non-audio bit set, excessive parity error.
CH SEL 1–4
(green)
Off
Indicated input A-D is not selected for AES output channel selected with CONTROL rotary switch or
audio channel 1-4 (after pairing) is not affected by adjustment selected with CONTROL rotary switch.
On
Indicated input A-D is selected for AES output channel selected with CONTROL rotary switch or audio
channel 1-4 (after pairing) is affected by adjustment selected with CONTROL rotary switch.
CH 1-4
AUDIO LVL
(green or red)
Off Channel 1-4 Digital processed audio (before DAC) level < – 40 dBFS
Red Channel 1-4 Digital processed audio (before DAC) level > – 40 dBFS but < – 0.5 dBFS
Green Channel 1-4 Digital processed audio (before DAC) level > – 0.5 dBFS
BANK 2
(yellow)
Off Bank 1 of Control rotary switch is active.
On Bank 2 of Control rotary switch is active.