Crystal Vision
Installation
5.5 Fitting a digital audio output sub-module
The ADCA412 is available in two versions, depending on the output sub-module fitted.
The OPAES 75 sub-module provides unbalanced 75 Ohm outputs whilst the OPAES110
sub-module provides balanced 110 Ohm outputs. Each sub-module plugs via headers on
the main card.
SW2
SK
T
1
SW3
OUTPUT
SUB-MODULE
POSITION
SK
T2
A
D
C
A
41
2
Is
s 3
C
ry
st
al
V
is
io
n
Lt
d
+5
V
18
V
O
N
R
EF
R
EM
C
trl
SIL1
2
48
k
44
k1
32
k
A
U
TO
LED1
LED2
LED3
LED4
LED5
JL1
JL2
JL3
JL4
JL1 4
~
+18 dBu
+24 dBu
PL4
PL2
PL3
JL10
JL11
JL9
JL8
J1
JL5
JL6
JL7
ADCA412 card showing the output sub-module headers, PL2, PL3 and PL4
J2
J1-A
CRYSTAL VISION LTD
OPAES 75 Iss1.00
J1
J2
J1-A
CRYSTAL VISION LTD
OPAES 110 Iss1.00
J1
T1
T2
OPAES 110
OPAES 75
The OPAES 110 and OPAES 75 output sub-modules
To fit a sub-module proceed as follows:
•
ensure that all static electricity precautions have been taken
•
offer up the chosen sub-module to its intended position on the main card with the
component side up
•
check that the orientation is correct and that the header sockets line up with the
corresponding header plugs on the main card
•
push the sub-module in place firmly taking care not to bend any pins
Removal is the reverse of the above procedure.
ADCA412 User Manual R2.1
34
30 October 2018
