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Crystal Vision
Introduction
Crystal Vision
Installation
The DACA214 module
Setting input terminations
The DACA214 has two termination jumper links at the right hand (top half)
rear end of the PCB. The jumpers are JL1 for AES1, and JL2 for AES2.
Move the links to the downward position for 110 Ohm input termination, or
to the upward position for 75 Ohm input termination. Fit the link lengthways
so it is only connected to the middle pin for higher impedance inputs. This is
useful when a number of circuits share the same 110 Ohm or 75 Ohm
source signal. The final PCB in the loop normally has to be set as the signal
termination (110 Ohm or 75 Ohm) if only a few PCBs share the same signal
source.
Other adjustments
•
JL7 and JL8 near the Eprom always have links fitted on pins 2+3 (rearwards)
•
JL10 and JL11 have no jumper link fitted and PL2 has nothing fitted
Note:
Pin 1 of all links has a square pad on the PCB underside.
DACA214 User Manual R1.9
29
04 February 2019