Instruction manual

DAC1 HDR Instruction Manual Rev I Page 11
Front Panel
Input Status Display
The DAC1 HDR has a six-LED status indicator
on the front panel.
Status Codes:
• Single LED lit – ‘Normal’ operating
condition with selected input
• Single flashing LED – error condition
on selected input
• All LED’s lit – ‘Mute’ mode
• All LED’s lit except selected input –
‘Dim’ mode
• No LED’s lit – ‘OFF’ mode or no power
The input label “A” indicates the analog input.
The input label “U” indicates the USB input.
The numbered labels match the numbers
adjacent to the digital connectors on the rear
panel. Digital input “1” is TOSLINK Optical.
Inputs “2”, “3” and “4” are RCA Coaxial.
Error Indication
The Input Status Display will flash when an
error occurs on the selected digital input. The
type of error is indicated by the frequency of
the flashes.
Error Codes:
• Very slow flashes – No signal – audio
muted
• Slow flashes – Data transmission errors or
Non-PCM –audio muted
• Rapid flashes – Non-audio – audio muted
• Very rapid flashes – Invalid sample (v-bit)
– no mute
Common causes of errors are:
- Disconnected cable
- Data drop-outs due to a bad cable
- Incompatible data type (AC3, ADAT, etc.)
- Non-Audio data
There is no error indication on the analog
input.