Grass Valley 2020DAC D-To-A - Manual (Page 20)

14 2020DAC Instruction Manual
2020DAC 4-Channel Audio Digital to Analog Converter
Ch 1/2 Input Status/Output Mode
The CH 1/2 INPUT STATUS/OUTPUT MODE display ( Figure 10 on page 15 ) pro-
vides status reporting and output mode selection for Ch 1 and Ch 2.
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 1/2 INPUT STATUS :
■ CH 1/2 20/24-BIT MODE indicates whether Ch 1/2 are set for 20- or
24-bit operation at jumper J10 (CH 1/2) on the circuit board. (Refer to
20/24-bit Operation on page 11 .)
■ CH 1/2 BAL/UNBAL INPUT indicates whether Ch 1/2 are set for balanced
110 Ω or unbalanced 75 Ω inputs at INPUT SEL jumper JP11 on the
circuit board. (Refer to Input Select on page 11 .)
■ CH 1/2 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 1/2 INPUT ERROR indicates any input error conditions present as either
VALIDITY , CRC , PARITY , BI-PHASE , NO LOCK or NO ERROR.
■ CH 1 AND CH 2 LVL RANGE indicates whether Ch 1 and Ch 2 are set for HIGH
(19-24 dBu) or LOW (14-19 dBu) level range at jumpers JP4 (CH 1) and
JP3 (CH 2) on the circuit board. (Refer to Output Level Adjustments on
page 11 .)
■ CH 1 AND CH 2 DE-EMPH indicates whether de-emphasis is being applied
to Ch 1 or Ch 2 audio channel.
■ CH 1 AND CH 2 DATA indicates type of incoming data (audio or non-audio)
to Ch 1 and Ch 2 channels.
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