MCi JH-400B Series Technical Manual page 54

c.
Microphone shields should NEVER be connected together outside
the console. They are tied to the SYSTEM GROUND inside the
console. DO NOT USE CAPACITORS.
D.
""5YSTEM
GI=<OUNO
5HIELD
\
~------------
TO MIKE FRAME ONLY/
DO NOT CONNECT TO
EARTH 6ROUND
OR
TO
516NAL WIRES.
Most devices with unbalanced inputs must be fed from an
unbalanced output so as to minimize spurious oscillations.
When feeding an unbalanced input from a balanced output,
the output must be unbalanced by connecting the low side
of the output to ground at the Console end of the line.
5YSTEf.A\
GROUt~D
.os-\1
mtd
IOOV
DISCAP
/L...------'
CHASSIS
IV
I
PREPARE FOR ANY GROUNDING PROBLEM BY PULLING SEPARATE GROUND
WIRES INTO EVERY CONDUIT.
Use #16 copper wire unless local building codes require larger
wire. EACH GROUND WIRE MUST GO ALL THE WAY BACK TO THE SYSTEM
GROUND FROM EACH LOCATION. DO NOT combine grounds at any other
point.
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