Grass Valley 2020DAC D-To-A User Manual

Page 22

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16

2020DAC Instruction Manual

2020DAC 4-Channel Audio Digital to Analog Converter

Ch 3/4 Input Status/Output Mode

The

CH 3/4 INPUT STATUS/OUTPUT MODE

display (

Figure 11 on page 17

) pro-

vides status reporting and output mode selection for Ch 3 and Ch 4.

Output level adjustments must be done using the on-board jumpers and
gain controls described in Output Level Adjustments

on page 11

.

The following items will be reported under

CH 3/4 INPUT STATUS

:

CH 3/4 20/24-BIT MODE

indicates whether Ch 3/4 are set for 20- or

24-bit operation at jumper J8 (Ch 3/4) on the circuit board. (Refer to
20/24-bit Operation

on page 11

.)

CH 3/4 BAL/UNBAL INPUT

indicates whether Ch 3/4 are set for balanced 110

or unbalanced 75

inputs at the CH3/4 INPUT SEL jumper JP9 on

the circuit board. (Refer to Input Select

on page 11

.)

CH 3/4 SAMPLE RATE

indicates the current input sample rate being

detected by the module as one of the following:

OUT OF RANGE

,

32K

,

32K

4%

,

44.1K

,

44.1K 4%

,

44.056K, 48K

or

48K 4%

.

CH 3/4 INPUT ERROR

indicates any input error conditions present as either

VALIDITY

,

CRC

,

PARITY,

BI-PHASE

,

NO LOCK

or

NO ERROR

.

CH 3 AND CH 4 LVL RANGE

indicates whether Ch 3 and Ch 4 are set for

HIGH

(19-24 dBu) or

LOW

(14-19 dBu) level range at jumpers JP2 (CH 3) and

JP1 (CH 4) on the circuit board. (Refer to Output Level Adjustments

on

page 11

.)

CH 3 AND CH 4 DE-EMPH

indicates whether de-emphasis is being applied

to Ch 3 or Ch 4 audio channel.

CH 3 AND CH 4 DATA

indicates type of incoming data (audio or non-audio)

to Ch 3 and Ch 4 channels.

The

CH 3/4 OUTPUT MODE

display allows you to set the desired output mode

of the module from the selections listed in

Table 7 on page 15

. After making

the selection, click the

APPLY

button to activate it.

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