Wheatstone SP-8, Technical Manual

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Appendix Page - 2 SP-8 / Dec 95
A
PPENDIX
and low distortion. The 2142 balanced line driver IC uses laser-trimming of
the on-chip resistors, under computer control, to achieve the desired results
at a realistic price. A major advantage over the discrete component designs is
the ability to replace the IC without the need for hand-picking resistors to
restore the performance of the circuit. If lightning ever strikes in your
neighborhood, you know that nothing is totally immune to a close hit. It’s
comforting to know that you can simply unplug the left or right output stage,
swap in another, and be back up and running in minutes.
Typical unbalanced input and output connections to SP-8 console.
RED
BLK
SHIELD
RED
BLK
SHIELD
BALANCED INPUT
UNBALANCED INPUT
Balanced
Source
Output
Unbalanced
Source
Output
CONSOLE INPUT
CONSOLE INPUT
A-6000 CONSOLE INPUTS
Tie low (black) and shield
together at source end
2142
H
L
SH
BALANCED
OUTPUT
2142
H
L
SH
UNBALANCED
OUTPUT
+
–
CONSOLE OUTPUT
CONSOLE OUTPUT
A-6000 CONSOLE OUTPUTS
SP-8 CONSOLE INPUTS
SP-8 CONSOLE OUTPUTS
(does NOT apply to CS-08 module!)
The output circuitry shown to the
right applies to SP-8 input, group
and output modules only. For con-
nections to monitor modules (i.e.,
CS-08 Control Room/Studio mod-
ule) see next section.
!